click here to install adobe acrobat reader · click here to install adobe acrobat reader file: ......

Untitled Document

click here to install Adobe Acrobat Reader

file:///D|/CD%20Proceeding%20ICCHT/OPEN%20CD%20PROCEEDING.html (1 of 2)12/21/2011 1:01:23 PM

Untitled Document

file:///D|/CD%20Proceeding%20ICCHT/OPEN%20CD%20PROCEEDING.html (2 of 2)12/21/2011 1:01:23 PM

file:///D|/CD%20Proceeding%20ICCHT/menu/SCHEDULE/Thursday.htm

Thursday, 9 December 2010

08.00 – 09.00 Registration SABUGA ITB09.00 – 10.00 Opening Ceremony

- Report from the Chairman- Speech by President of ASHRAE Indonesia Chapter- Speech by President of ASHRAE Regional XIII- Opening Speech by Rector ITB

Opening the event and official visit to the Exhibition Booth

10.00 – 10.30 Coffee Break 10.30 – 11.00 Keynote Lecture 1: Prof. Akinori Furukawa (JAPAN) Auditorium

Chairman: Prof. Hyomin Jeong 11.15 – 12.30 Technical Session 1-1 Technical Session Rooms12.30 – 13.30 Lunch 13.30 – 14.00 Keynote Lecture 2: DAIKINAIRCON Auditorium

Chairman: President ASHRAE Indonesia Chapter

14.15 – 16.00 Technical Session 1-2 Technical Session Rooms16.00 – 16.30 Coffee Break 19.00 – 21.00 Welcoming Dinner Maxi’s Resto, Bandung

Technical session Schedule

Session 1.1Room 1 (Renewable Engineering)Chairman: Dr. Priyono SutiknoCo-Chair: Dr. Yali GuoTime Paper Title Author Paper no11.15 – 11.30 Portable Solar Water Heater

Abdurrachim, E. Maulana 1

11.30 – 11.45 Evaluation of the Thermal Environment of Large space installed AHU using Solar heating system

Eun Jang,B Y Ha, D-G Kim, J-S Kum, Y-H Chung, J-P Myeong

11

11.45 – 12.00 The Influence of Pinch Temperatures on Geothermal Power Plant Performance

Ari D Pasek, T A F Soelaiman, J Gozali, C Gunawan

82

Room 2 (Heat Transfer, Fluid, and Thermal Engineering)Chairman: Dr. Nathanael P TandianCo-Chair: Dr. Xiaohua LiuTime Paper Title Author Paper no

file:///D|/CD%20Proceeding%20ICCHT/menu/SCHEDULE/Thursday.htm (1 of 6)12/21/2011 12:56:18 PM


11.15 – 11.30 Experiment of Absorption Heat Transfer Performance Enhancement for Binary Nanoemulsion

Jin Ki Lee

17

11.30 – 11.45 CFD analysis of Flow Phenomena in Shell and Tube Exchanger

Yonghan Shin,H Jeong, H S Chung

78

11.45 – 12.00 Investigation and Evaluation Steam Generator Performance of the Steam Power Plant, Tello Makassar with Energy and Exergy Analysis

S Himran,M Palaboran, E S Piarah

79

12.00 – 12.15 Experimental study on turbulence and pressure characteristics about heat transfer enhancement creating artificial roughness

Md. Julker Nine,G H Lee, H S Chung, H M Jeong

73

12.15 – 12.30 Multi-phase analysis on effect of Brownian motion in heat transfer of H2O-Cu Nanofluid using LBM

Kui Ming Li

141

Room 3 (Energy and Alternative Energy)Chairman: Prof. Hanshik ChungCo-Chair: Dr. Yuli S IndartonoTime Paper Title Author last name Paper no11.15 – 11.30 Study on Strength of Artificially Methane Hydrate-

Bearing Sediments Containing Various Volumetric Methane Hydrate Content

Feng Yu, Y song, W Liu, Y Li, R Wang, X Nie

50

11.30 – 11.45 Study on Memory effect of Structure I and II Hydrates

Yongchen Song, C Guo, J Zhao, K Xue, C Cheng, Y Song, Y Liu, Y Zhang

51

11.45 – 12.00 MRI study of the Structure of Tetrahydrofuran Hydrate in Porous Media

Chuan-Xiao Cheng,Lei Yao, Yi-Ming Zhu, J-F Zhao, K-H Xue, Y-C Song

64

12.00 – 12.15 Experimental Study of Utilization of Air Condition as Water Heater

Ika Yuliyani,Abdurrachim, Jooned Hendrarsakti

145

Room 4 (CO2 Reduction and Low Carbon Technologies; Environmental Engineering)

Chairman: Prof. Hyomin JeongCo-Chair: Dr. Jooned HendrarsaktiTime Paper Title Author Paper no11.15 – 11.30 Visualization of CO2 flooding n-decane in porous

media using NMR imaging

Yongchen Song,Y Zhao, Y Liu, L Jiang, N Zhu

63



11.30 – 11.45 MRI Measurement of Minimum Miscibility Pressure for CO2/n-decane system at Reservoir Temperature

Ningjun Zhu,Y Song, Y Liu, Y Zhao, L Ji

65

11.45 – 12.00 Decomposition Analysis On Industrial Energy-related CO2 Emissions In China

Miao Li,H Mu, M Li, X Kang, M Zhang

106

Session 1.2Room 1 (Heat Transfer, Fluid, and Thermal Engineering)Chairman: Prof. Dr. Syukri HimranCo-Chair: Prof. Yongchen Son14.15 – 14.30 Comparison of System Performance on Hot-gas

Bypass and Capacity Control in an Oil Cooler for Machine Tools

Kim Sang Ho

14

14.30 – 14.45 Numerical Investigation of the Partition Characteristics for the Condensation X-Shock

Yong Yang,S Shen, W Bi

62

14.45 – 15.00 Boiling Mapping for Cooling Process in Annulus Narrow Gap Base on Initial Temperature Variation

Mulya Juarsa,R Koestoer, A R Antariksawan, Indarto, B Riyono, Nandy Putra

114

15.00 – 15.15 Research of Fluid Flow on a Welding Region for the Shape of Shield Gas Nozzle

Yoon Hwan Choi

140

15.15 – 15.30 A Study on Heat Transfer and Flow Characteristics of Bubble Jet Loop Heat Pipe.

Jong Soo Kim 24

Room 2 (Computational Fluid Dynamics) Chairman: Dr. Abdurrachim Halim Co-Chair: Dr. Wang Xiaopo14.15 – 14.30

A numerical study of a plate heat exchanger with sine duct

Jong-Hyun Pyo,J-H Bong, H Cho

36

14.30 – 14.45 Numerical Simulation of the Cooling System in the Combustion Chamber of Small Liquid Rocket Engine

Romie Bura

41

14.45 – 15.00 Heating Rates of the Blunt-Fin Induced Supersonic Shock-Wave/ Boundary-Layer Interactions.

Romie Bura

42

15.00 – 15.15 Numerical Prediction of Film Distribution in Horizontal—tube Falling Film Evaporator

Qinggang Qiu,J Chen

49

15.15 – 15.30 Research on Dynamical Process of Droplet Impacting on Inclined solid Surface

Yali Guo,S Quan, S Shen, J Li

59



15.30 – 15.45 Comparison of Numerical Results of LES for Fluid Flow and Heat Transfer in a mixing tee with Sintered Porous Medium using Volume-averaging Method with Fluid-solid Coupling Method

T Lu,Y W Wang, P F Cheng, K S Wang

60

15.45 – 16.00 Numerical analysis research of pressure distribution according to nozzle shape change of shock absorber on dual pulse shock test machine

Handry Afrianto

136

Room 3 (Refrigeration Engineering)Chairman: Prof. Dr. Kamarudin AbdullahCp-Chair: Dr. Jizu LV14.15 – 14.30 HCFC Phase out development Plan in Indonesia Ari D Pasek,

N Aumkau, M Hilman, Sulistyowati, Tridayanti

81

14.30 – 14.45 Experimental study on liquid desiccant flow rate effect’s in LiCl liquid Desiccant Dehumidification System

Fatkhur Rokhman,A Bakhtiar, C K Hwan

93

14.45 – 15.00 Development of Solid Sorption Refrigeration System for Ice-maker

Wimonnad Charrote,I M Astina, P S Darmanto

129

15.00 – 15.15 Development of Zeolite-Methanol Adsorption Freezer for Fishing Boat

L Sophal,I M Astina, P S Darmanto

130

15.15 – 15.30 Life Cycle Cost Analysis of Air Conditioning System in a Cluster of High Rise Building

S Sam On,I M Astina, P S Darmanto

131

15.30 – 15.45 Thermal Characteristics Evaluation of Vegetables Oil to be Used as Phase Change Material in Air Conditioning System

Yuli S Indartono,A Suwono, A D Pasek, D Mujahidin, I Rizal

132

15.45 – 16.00 Modeling and Prototyping a Mini Portable Thermoelectric Beverage Cooling Device

Hendi Riyanto,S Yuwono

137

Room 4 (Material Engineering for Energy Machinery; Fuel Cell and Heat Pump; Renewable Energy Management, Economics and Environmental Impact)Chairman: Prof. Yeon Won Lee Co-Chair: Dr. Yanghui Li



14.15 – 14.30 Characteristics Analysis of Brekdown Voltage on Dielectric Transformer Oil Shell Diala B at Temperature 30oC-130oC

Wahyu Kunto Wibowo 94

14.30 – 14.45 A concept of using the dynamic power profile as a control reference for an advanced water management system on PEM fuel cell vehicle

Agung Bachtiar,F Rokhman, C K Hwang

83

14.45 – 15.00 Grey modeling & analysis of energy consumption in China based on catastrophe points

Nan Li,N Li, H Mu, S Gui, X Chen

107

15.00 – 15.15 Research Progress and Analysis of Solar Desalination Technology

Xiaohua Liu

53

POSTER SESSION:No Poster Title Author Poster No

9 Dec 2010, 11.15-12.30

1Experimental analyses on the effects of heat transfer efficiency of a heat recovery ventilation system according to the air volume ratio between supply and return flows

Taekun Lim

21

2A Study On The Pressure Loss Of Sprinkler Pipe System Hur Mansung 25

3Experimental Study On Oscillating Reburning For Nox Reduction

Chang Yeop Lee 90

4The Effect Of Reburning With Rice Husk On Nox And Thermal Characteristics In A Liquid Fuel Flame.

Huidong Shin 91

5A Study On The High Efficient Fin Model For Air-Conditioning

Sunhyeng Jo34

6Solar-Powered Water Pump : Stirling Engine Design And Performance Evaluation Of Solar Cooker

Abraham Prasetyo44

9 Dec 2010, 14.15-16.00

7A Study On Ensure Proper Flow Of Hot Water In Floor Heating Tube Authors

Hongdo Jeong 30

8A Simulation Of Impact Of Droplets On A Pipe By Using Lattice Boltzmann Method

Feifei Bi55

9Condensation Phenomenon Of Stratified Flow Inside Horizontal Tube

Rui Liu56

10Effect Of Resistance Force Of Tube Bundle On The Fluid Flow Characteristic In Evaporator With Low Reynolds Number

Hua Liu

58

11Experimental Study Of Falling Film Evaporation Heat Transfer Coefficient On Horizontal-Tube

Xingsen Mu61

12Study Of Performance Of Damper Using Electro-Rheological Fluid

Hyun Gweon Jeong70



13A Study on the Subway Platform Thermal Environment using Natural Energy

Minsoo Kim, M-S Kim, H-R Kim, J-S Kum, D-G Kim, J-R Kim

12

14A Study on Operation Characteristics Solar system with Air-handling Unit in Large Space.

Lim Hongseok, D-G Kim, Y-H Chung, K-O Kim, Y-H Jeong, J-S Kum

13


file:///D|/CD%20Proceeding%20ICCHT/menu/SCHEDULE/Friday.htm

Friday, 10 December 2010

08.00 – 08.30 Registration 08.30 –09.00 Keynote Lecture 2: EMERSON Auditorium

Chairman: Dr. Ari D Pasek09.00 – 09.30 Coffee Break 09.30 – 11.00 Technical Session 2-1 Technical Session Rooms11.00 – 13.00 Break and Lunch Friday Pray for Moslem13.00 – 13.40 Keynote Lecture 3:

Dr. Jongman Ha (KOREA)Dr. Xiaopo Wang (CHINA)

AuditoriumChairman: Prof. Shenqiang Shen

13.45 – 15.15 Technical Session 2-2 Technical Session Rooms15.15 – 15.45 Coffee Break 15.45 – 17.00 Technical Session 2-3 Technical Session Rooms 19.00 – 21.00 Closing Ceremony

- Closing Speech by the Governor of Province of West Java*- Farewell Dinner

* to be confirmed

Technical session Schedule

Session 2.1Room 1 (Refrigeration Engineering)Chairman: Dr. Yuli S IndartonoCo-Chair: Dr. Shenglin Quan9.30 – 9.45 Determination of Potential Energy Surface of Some

Hydrocarbon Refrigerants and Their Gas Transport Properties via Semi-Empirically Based Assessment

Wang Xiaopo, B Song, J Wu, Z Liu

2

9.45 – 10.00 Thermodynamic analysis of the refrigerant mixture R125/R1270/R152A

Wang Xiaopo,Y Wang, Z Liu

3

10.00 – 10.15 Analytical Study of Performance in a Refrigerator Truck using R404a and R744

Chiwook Myung,S Kim, H Cho

8

10.15 – 10.30 Frost pattern on a fin-tube with multiple fins for evaporator of the heat pump

Keumnam Cho

9

10.30 – 10.45 The Optimization of Operating Condition in a Single-stage Compression CO2 Cycle with Internal

Heat Exchanger

Kyungjin Bae,B Kang, H Cho

37

Room 2 (Renewable Engineering; Low Temperature Engineering; Heat Transfer)Chairman: Dr. Bambang SusiloCo-Chair: Dr. Wenzheng Chui

file:///D|/CD%20Proceeding%20ICCHT/menu/SCHEDULE/Friday.htm (1 of 7)12/21/2011 12:58:27 PM


9.30 – 9.45 Experimental Study of Photovoltaic Thermal (PV/T)

Rahmat Subarkah,Belyamin

38

9.45 – 10.00 Drying of granular materials in inclined pneumatic conveyor

Kamaruddin Abdullah,A S Uyun, Y Chan, Y Esye

39

10.00 – 10.15 Experimental study on the heating capacity of an inverter-driven injection heat pump adopting a scroll compressor at low ambient temperatures

Suk Bin Ko,I Choi, Y Kim

117

Room 3 (Heat Transfer, Fluid and Thermal Engineering)Chairman: Dr. Toto HardiantoCo-Chair: Dr. Seongsoo Kim9.30 – 9.45 Flow Pattern and Two Phase Flow Distribution in a

Distributor

Azridjal Aziz,A Miyara, K Tsubaki, Sugiono

45

9.45 – 10.00 10.00 – 10.15 Numerical Analysis of Turbulent flow in a channel

with periodic semi-circular ribs

Gyeonghwan Lee, J Nine, H Jeong, H S Chung

69

10.15 – 10.30 Multi-phase analysis on effect of Brownian motion in heat transfer of H2O-Cu Nanofluid using LBM

Yeon Won Lee,K M Li

101

10.30 – 10.45 Natural Convection In Vertical Converging Channel Flow: The Critical Review Experimental Study of Utilization of Air Condition as Water Heater

Jooned Hendrarsakti 144

10.45 – 11.00 Thermodynamic Study Of Generator Set Exhaust Gas Heat Recovery Using Organic Rankine Cycle With Regenerator

Prihadi S Darmanto 88

Room 4 (Marine and Ocean Engineering)Chairman: Dr. Xiahoa LiuCo-Chair: Dr. Dong Eok Kim9.30 – 9.45 Study on Mechanical Behavior of Marine Hydrate-

Bearing Sediments under Triaxial Compression

Yanghui Li,Y Li, Y Song, F Yu, W Liu, R Wang, X Nie

52

9.45 – 10.00 A Study on the Pressure Drop and Flow pattern for Demister in MED-MVC System

Pil Hwan Kim,D Choi, Y Mun, H Jeong, H S Chung

85

10.00 – 10.15 Experimental fault detection of a gearbox using acoustic emission signal

Dong Sik Gu,J G Kim, B-K Choi

110

10.15 – 10.30 Evaluation of the AE Signal caused by Fatigue Crack Growth

Jae Gu Kim,D Gu, B K Choi

111

Session 2.2



Room 1 (Computational Fluid Dynamics)Chairman: Prof. Keumnan ChoCo-Chair: Dr. Jooned Hendrarsakti13.45 – 14.00 Computational investigation on the performance

characteristics of the Mechanical Vapour Compressor

Jusik Woo,Y Chun, H S Chung, H Jeong

71

14.00 – 14.15 Numerical Study of Multistage Centrifugal Compressor in Mechanical Vapor Compression Desalination System

Muhammad Nuim Labib,H M Jeong, H S Chung

72

14.15 – 14.30 Numerical Analysis for the flow Phenomenon change the Chevron Angle in Plate Heat Exchanger

Seong Soo Kim,Y Seong, H Jeong, H S Chung, H Jeong

75

14.30 – 14.45 Molecular Dynamics simulation on nanofluids in wall layer

Jizu L V,X Li, M Bai, W Cui

96

14.45 – 15.00 Numerical simulation of single bubble rising in viscous liquid by Lattice Boltzmann method

Ning Li,W Li, J Zuo, T Sun

116

15.00 – 15.15 Study and CFD Simulation of the Utilization of Waste Treatment Plant Gas Product as Co-Fuel of Steam in Ethanol Plant

Prihadi S Darmanto,M Ariefyanto

119

Room 2 (Renewable Energies)Chairman: Dr. Abdurrachim HalimCo-Chair: Dr. Chang Yeop Lee13.45 – 14.00 The Comparison between the Effects of Using Two

Plane Mirror Concentrators and that without Mirror on the Flat-Plate Collector

S Himran,B Sudia, W S Piarah

80

14.00 – 14.15 Kinetic Model of Palm Oil Transesterification to Biodiesel with Ultrasound

Bambang Susilo,La Chovia Hawa, M Bagus Hermanto

113

14.15 – 14.30 Development of Microhydro Power for Encouraging Small Scale Cofee Processing in Geumpang-Aceh

Hamdani,Irwansyah

124

14.30 – 14.45 Design and Blade Optimization of Intelligent Wind Turbine

Priyono Sutikno,D B Saepudin

127

14.45 – 15.00 Design, Simulation and Experimental of the Very Low Head Axial Water Turbine

Priyono Sutikno,I M Khalik

128

Room 3 (Energy and Alternative energy)Chairman: Prof. SutardiCo-Chair: Dr. Muhammad Nurhuda



13.45 – 14.00 Ocean Thermal Energy Conversion (Otec) Power Plant And Its By Products Yield For Small Islands In Indonesia Seawater

Y Siahaya,L Salam

97

14.00 – 14.15 Thermodynamic Analysis of a Flash-Binary Cycle in a Geothermal Power Plant

T.A.Fauzi Soelaiman,A D Pasek, C Gunawan

100

14.15 – 14.30 The Development of Laboratory Scale Continuous Peat Torrefaction Reactor System

Haryadi,T Hardianto, A D Pasek, A Suwono

123

14.30 – 14.45 The effect of components composition of mixed municipal solid waste on torrefaction temperature and resident Time

Amrul, A Suwono, A D Pasek, T Hardianto

126

14.45 – 15.00 Triga 2000 Reactor Thermal Hydraulics Performance for 1 MW Power Condition

Rosalina Fiantini, N Nagara, P Basuki, E Umar

133

Room 4 (Heat Transfer, Fluid and Thermal Engineering)Chairman: Prof. Dr. S.H. WinotoCo-Chair: Dr. I Made Astina13.45 – 14.00 Experimental Study of Morphology on Water

Droplet Impacted onto Incline Solid Surface

Shenglin Quan, Y Guo, W Li, S Shen

67

14.00 – 14.15 Shell side Fluid Flow Phenomena of a Shell-and-Tube LNG Vaporizer

S.M. Sayeed-Bin-Asad Sayeed, Y H Shin, H S Chung, M Jeong

68

14.15 – 14.30 Molecular dynamics simulation on thermal physical properties of nanofluids

Wenzheng Cui, J LV, M Bai, X Li

92

14.30 – 14.45 Experimental investigation of high pressure steam condensation heat transfer in a vertical tube

Dong Eok Kim, K W Hwang, K H Yang, Y H Ha, G C Park, M H Kim

98

14.45 – 15.00 Experimental Investigations on the Temperature Characteristics Using Different Fill Ratio of the Loop Heat Pipe

Md.Riyad Tanshen,K Lee, H Jeong, H S Chung

74

Session 2.3Room 1 (Computational Fluid Dynamics)Chairman: Dr. Wenzheng Chui Co-Chair: Dr. Yusuf SiahayaTime Paper Title Author Paper no



15.45 – 16.00 Numerical and Experimental Study on the Effect of Guide Vane Insertion on the Flow Characteristics in a 90º Rectangular Elbow

Sutardi,A W Wawan, N Nadia, K Puspita

5

16.00 -16.15 Numerical Analysis of Natural Convection Air Cooling on Containment of AP-1000 Reactor Model

Ari D Pasek

6

16.15 – 16.30 A numerical study of gas-liquid bubbly flow split through branching T-junctions with different internal configurations

Yang Liu,W Z Li

66

Room 2 (Heat Transfer, Fluid and Thermal Engineering)Chairman: Dr. Priyono SutiknoCo-Chair: Dr. Shenglin QuanTime Paper Title Author Paper no15.45 – 16.00 Analysis of cooling performance of EGR Cooler by

using carbon-nanofluid

Seongsoo Kim, H S Chung, H M Jeong, B H Kim, B H Lee, H Choi, J Hwang

105

16.00 -16.15 Theoretical Study of Convective Heat Transfer in a Vertical Square Sub Channel

Nathanael Tandian, E Umar, T Hardianto, A C Syuryavin,

134

16.15 – 16.30 Improvement of Cooling Tower Performance through Fan Stack Geometry Modification: Wayang Windu Geothermal Power Plant Case Study

Willy Adriansyah

135

16.30 – 16.45 Lattice-Boltzmann Simulation on Heat Transfer Performance in Microchannel With Difference Surface Characteristics

J. Chui, W. Z. Li

138

16.45 – 17.00 Study of Steam Compressed Heat Pump System on The Gas Separation Device

Ping Wang

139

Room 3 (Renewable Engineering)Chairman: Dr. Prihadi S DarmantoCo-Chair: Dr. Yali Guo Time Paper Title Author Paper no



15.45 – 16.00 Economic Benefit Of Hybrid Nocturnal Cooling Applications Under Indonesian Climatic Condition

Kamaruddin Abdullah, I B P Gunadnya, Y A Purwanto, H T Armansyah, M A M Oktaufik, K Abdullah

40

16.00 -16.15 Solar-Powered Water Pump : Stirling Engine Design and Performance Evaluation of Solar Cooker

Abraham Prasetyo, A Prasetya, A H Prasetyo, Z A Abidin

43

16.15 – 16.30 Enhancing the efficiency of biomass stove by using radiant waste heat for pre-heating

Muhammad Nurhuda, T Baolun

47

16.30 – 16.45 Performace of A Shrouded Wind Turbine: A Preliminary Study

S H Winoto

48

Room 4 (HVAC System)Chairman: Prof. Jong Soo KimCo-Chair: Dr. Toto HardiantoTime Paper Title Author Paper no15.45 – 16.00 A study on the vertical sectional exhaust

characteristics from kitchens using a vertical shaft

Byeong Kwon Yi

89

16.00 -16.15 A Study on the Thermal Conductivity of Heat Exchangers on the Geothermal Heat Pump System

Chenkuan Park, H Jeong, Y-H Lee, H Jeong, H Chung

28

16.15 – 16.30 System Sizing Commissioning and Balancing in a Constant-Primary Variable-Secondary Pumping Scheme of a Central Cooling System

Egi Al-GhifariWilly Adriansyah, I Made Astina, Prihadi Setyo Darmanto

143

POSTER SESSION:10 Dec 2010, 09.30-11.00

15Comparison Of Cyanide Degrading Enzymes Expressed From Genes Of Fungal Origin

Sunghyun Kwon76

16Study On Fresh Water Generation System With Low Pressure Evaporation By Experiment

Supriyanto Wibowo77

17Thermal And Economic Analysis On Green House Effect (Ghe) Of Solar Rotary Dryer For Drying The Agricultural Product

Ropiudin Ropi

87

18A World Trend Of New•Renewable Energy Policy And Patent Analysis Waste Heat Recovery System

Churl Pyo Kim27

19A Study Of Refrigeration Cycle Depending On Changes In Evaporator Fan Motor (EFM) Temperature Control And Load

Chang Myung Seo

29



20Performance Analysis Of A R744-R404A Cascade Refrigeration System With Internal Heat Exchanger

Min-ju Jeong95

21The Characteristics on the Capacity Control of Inverter Type in an Industrial Water Cooler

Hyun-Woo Kim 16

10 Dec 2010, 13.45-15.15

22A Study On The Pressure Loss Of Sprinkler Pipe System Hur Mansung 102

23A Study Of Silencer To Decrease Noise For Tank Gun Hyun Mo Jung 103

24CFD Simulation Of The Permeability Cylinder Using Porous Boundary Condition

Kyujin Shim104

25Microstructural Characterization And Vickers Hardness Of Al2O3 Fiber-Reinforced Al Alloy Metal Matrix Composites Processed By Low-Pressure Infiltration

Hua Wei Rong

109

26Composition Design And Mechanical Properties Of BCC Ti Solid Solution Alloys With Low Young’s Modulus.

Kelimu Tulugan112

27Direct Numerical Simulation Of Single Bubble Rising In Viscous Liquid

Aiming Yuan115

28Comparison of Performance on the Natural Gas Liquefaction Process using Intercooler

Jin Woo Kwag 20

29Compare of Thermal Comfort Sensation between Elder’s and Young’s from Indoor Thermal Environment in Cooling

Ha Byeong-Yong, D G Kim, J-S Kum, Y-H Chung, D-S Kim

10

10 Dec 2010, 15.45-17.00

30Micromechanical Analysis Of Uni-Directional Carbon/Epoxy Composites

Hong Gun Kim118

31A Study On The High Quality Drying Products Of Sea Foods By The New Drying Technology

Kyong-Suk Kim 120

32A Study On The Effect Of Automobile Engine Performance By Using Carbon Nano Colloid Cooling Water

Bohan Kim 26

33Prediction Of Cement Demand And Energy Consumption In China

Yong Yang 122

34Electromagnetic Induction Heating For Recovery Unconventional Reservoirs

Pramana142

35Optimization of Thermosyphon Inserted Vacuum Tube Type Solar Heat Collector

Soonchang Yang 22

36The Effects of Air Bubbles to Decrease the Fouling of the Plate Heat Exchanger

Baek Seung Moon, W-S Seol, T-S Oh, J-I Yoon

46


ICCHT2010 - 5th

International Conference on Cooling and Heating Technologies. Bandung, Indonesia

9-11 December 2010

131- 1

Simulation of Air Conditioning System Operation for a

Cluster of High Rise Building in Jakarta

S. Sam On1,2, I M. Astina2, P. S. Darmanto2

1Industrial and Mechanical Engineering, Institut de Technologie du Cambodge,

Cambodia 2Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung,

Indonesia, E-mail: [email protected]

ABSTRACT: Jakarta as metropolitan city of Indonesia has peak load of energy

consumption in the evening. During the time from 6 PM to 10 PM the price of

electricity is double compared to the price of electricity from the other time.

Similar as other sectors, air conditioning system is also the main primary energy

consumption. It consumes about 44% of the total energy consumption of the

building. In response of World oil crisis, the limitation of energy availability

occurs, a paradigm on development of heating ventilation and air conditioning

system (HVAC) in cluster of high rise building is proposed to minimize in

investment cost, installation and operation costs. Four different optional system of

air conditioning system are simulated. First is a simulation of centralized air

conditioning system for individual building, second is a simulation of centralized

air conditioning system without thermal energy storage for cluster building, third is

a simulation of centralized air conditioning system computed with thermal energy

storage, and fourth is a simulation of hybrid centralized air conditioning system

with thermal energy storage. The energy consumptions for each optional system are

compared to analyses the efficiency of the system. As the result, hybrid centralized

air conditioning system with thermal energy storage is the most effectiveness

system that can save the most investment cost, installation, and operation costs.

Keywords: Cooling load, Centralized Air Conditioning, Thermal Energy Storage.

NOMENCLATURE

CLQ Cooling load [kW]

CHP Power consumption of chiller [kW]

CHWPP Power consumption of chilled water pump [kW]

CDWPP Power consumption of condenser water pump [kW]

CTP Power consumption of cooling tower fan [kW]

PH Pump head [m]

Specific weight [N/m3]

P Pump efficiency

CHWQ Chilled water flow rate [l/s]

CDWQ Condenser water flow rate [l/s]

EVQ Makeup water for cooling tower flow rate [l/s]

ICCHT2010 - 5th


9-11 December 2010

131- 2

1. INTRODUCTION

HVAC system maintains a desired air condition in a space. Cooling equipment consumes

about 30% of the overall commercial sector (kWh) and 44% of the total energy demand for

building [1]. The energy supply availability is limited, a paradigm on development of heating

ventilation and air conditioning system in cluster of high rise building is proposed to minimize

investment cost, installation and operation costs. Using of thermal energy storage for shifting

HVAC loads for on peak load to off peak load hours has truly allowed the building

management system to manage the time when the energy is used to avoid expensive peaking

cost [1, 2, 3, and 4]. Any saving in electricity cost provides by thermal energy storage is based

on the pricing policy of the electricity utility [5]. Jakarta has a new tariff energy policy. the

price of electricity from 6 PM to 10 PM is around 1400 Rp/kWh while other period of time the

electricity cost is around 700 Rp/kWh. This paper aims to minimize the energy consumption of

air conditioning system for a cluster building in order to reduce operation cost. Four systems

are considered in these simulations. First is a simulation on energy consumption of centralized

air conditioning system for individual building, second is a simulation on energy consumption

of centralized air conditioning system without thermal energy storage, third is simulation on

energy consumption of centralized air conditioning computed with thermal energy storage, and

fourth is a simulation on energy consumption of hybrid centralized air conditioning system

with thermal energy storage. The result of each simulation gives a facility of selecting an

effectiveness system to match with the zone condition.

2. COOLING LOAD ESTIMATION AND ANALYSIS

2.1 Case Study Data of Cluster of High Rise Building

A Cluster of high rise building consists of twelve towers situating in Jakarta. The building

serve for several different purposes such as apartment, hotel, school, club house, hospital,

restaurant, sport area, shop, mall, and sport area, etc.

Figure 1: Cluster of high rise building view

ICCHT2010 - 5th


9-11 December 2010

131- 3

Case study will be focused only for the building that needs air conditioning system.

Building data needed for the cluster is show in table 1.

Table 1: Data of Cluster of high rise Building

No. Building

Name No. of floors AC Area (m

2) Building Function

1

Tower A

43

19096.5

Apartment

2

Tower B

46

21043

Apartment

3

Tower C

46

21546.5

Apartment

4

Tower D

41

20138.5

Apartment

5

Tower E

2

783.5

Apartment

6

Tower G

25

18879

Apartment

7

Tower H

25

15139.5

Apartment

8

Tower I

28

9681

Apartment

9

Tower G

32

21201

Apartment

10

Tower K

11

4376

School

11 MALL 7 74332.5 Super Market

2.2 Basic Calculation

An estimation of cooling load for each building uses carrier HAP (Hourly Analysis

Program) with standard of ASHRAE std 62-2001 [6]. Weather design perimeter is in Jakarta

city, Indonesia, Asia Pacific.

Table 2: Weather Design Temperature

Monthly Max/Min

Dry Bulb Wet Bulb

Month Max Min Max Min

Jan 32.2 24.4 26.7 24.2

Feb 32.2 24.4 26.7 24.2

Mar 31.1 23.3 26.1 23.1

Apr 30 22.2 25.6 21.9

May 28.3 20.6 25 20.3

Jun 27.2 19.4 23.9 19.2

Jul 26.7 18.9 23.9 18.6

Aug 27.8 20 239 19.7

Sep 29.4 21.7 25 21.4

Oct 30 22.2 25.6 21.9

Nov 30.6 22.8 26.1 22.5

Dec 31.7 23.9 26.7 23.6

Several input data have been considered such as numbers of occupancy and their activities,

overhead lighting heat gain, electrical equipment heat gain, air exchange requirement, wall

ICCHT2010 - 5th


9-11 December 2010

131- 4

surface expose to the sun, numbers of door and window, roof surface exposure and wall

contact with unconditioned space. Some assumption are introduced for occupancy working

schedule, overhead lighting schedule, electrical equipment schedule and also thermostat

schedule for the different building or zone conditioned. The building has been subdivided into

zones which resemble each other in the terms of their heating and cooling loads.

2.3 Cooling Load Analysis

HAP program gives a report data of cooling load for 24 hours day and twelve months a

year. As a result, all the buildings have similar characteristic cooling profile. On peak cooling

load demand happen in the afternoon from 14PM to 16PM and mostly in January, February or

in December. Off peak cooling load occurs in the morning and late at night except School and

Mall that the system operate from 7AM to 8PM for school and from 7AM to 10PM for Mall.

The combination of cooling load of all the building is used for finding the total cooling of the

cluster for determining a weather-load profile of chillers. This profile is used as an input into a

chiller system model to assess how much electricity the chillers consume [7].

Figure 2: Daily Cooling Load profile in the different month of the year

Figure 2 shows the total cooling load profile for 24 hours in the different month of the year.

The lowest total on peak cooling load demand is in July and the highest is in January which the

on peak loads are 17629 kW and 25075 kW, respectively. The high cooling load demand

happens in the evening from 6 PM to 10 PM when the price of electricity is high. Therefore, an

alternative system is needed for solving this problem.

3. ALTERNATIVE DESIGN OF SYSTEM REQUIREMENT

3.1 Centralized Air Conditioning System for Individual Building

Centralized air conditioning systems as illustrated if figure 3, are installed to supply the

cooling load to the individual building. The conventional chillers are selected to match with

cooling load demand after gotten the cooling load profile from the computation in HAP. Three

equal capacity chillers are installed to supply cooling load to the building, two of them are

working simultaneously and the rest is standby. This option will increase in the initial cost of

the system in case the total capacity of chillers for the whole cluster is bigger than the

ICCHT2010 - 5th


9-11 December 2010

131- 5

centralized air conditioning system for cluster building because of most chillers are reserved

for any failure chillers.

Figure 3: Schematic diagram for centralized air conditioning system for individual building

3.2 Centralized Air Conditioning System without TES for Cluster Building

Centralized air conditioning system features has some of the criteria associated have to be

considered to reduce the installed equipment capacity and to offers some attractive initial cost

and operating cost benefits [8]. In this optional system, tens equal capacity chillers are installed

and running separately to supply the cooling load to match with the total cooling demand of the

cluster building while other one serve for failure chiller. The schematic diagram is given in

figure 4.

Figure 4: Schematic diagram of centralized air conditioning system without thermal energy storage

3.3 Centralized Air Conditioning system with TES for Cluster Building

Thermal energy storage in which such as used in a conventional chillers system, with the

additional large container that stores cooling in ice, chillers water, or some others material.

Thermal energy storage is analogues to the electrical system of an automobile. The chillers are

similar to automobile generator and thermal energy storage is the automobile’s battery. At the

different times, the cooling load of the facility maybe serves by the chillers directly, by the

cooling storage unit, or by both [5]. For this paper the thermal energy storage has been installed

into two optional systems different to match with the energy tariff policy in Jakarta.

First is centralized air conditioning system computed with thermal energy storage for the

cluster building. As illustrated in figure 5, fourteen chillers are installed when twelve chillers

are running and two chillers are standby. In case of thermal energy storage is installed for full

load charge and discharge. Two small capacities chillers are using for charging the thermal

energy storage to shift the cooling load for using from 6 PM to 10 PM when the conventional

chillers are turn off. Ten equal capacity chillers are supply cooling load to the buildings during

low price of energy consumption time. From 6 PM to 10 PM the price of electricity is high, all

ICCHT2010 - 5th


9-11 December 2010

131- 6

the chillers are turn off and thermal energy storage is run to discharge to supply the cooling

load to the building.

Figure 5: Schematic diagram of centralized air conditioning system compute with thermal energy storage

Second is hybrid centralized air conditioning system with thermal energy storage. As

schematic given in figure 6, different from the first case, same capacity chillers are installed to

supply cooling load to the building and for charging the thermal energy storage simultaneously

while other one standby for failure chiller. During the off peak cooling load demand, one part

of the cooling is used to supply the building and other part is shifting in the thermal energy

storage. During on peak cooling load demand, the total cooling load of the conventional

chillers plus some part of cooling storage from the thermal energy storage are used to supply

the building. From 6 PM to 10 PM the price of energy consumption price is high, all the

chillers are turn off and thermal energy storage is run to remove the cooling load from the

building. In this case the side of thermal of energy storage is bigger than the first case but

capacity of chillers is smaller.

Figure 6: Schematic diagram of hybrid centralized air conditioning system with thermal energy storage

Figure 7 illustrated four different function of thermal energy storage for the two systems above.

Firstly, chiller run for charge thermal energy storage and also supply cooling load to the

building, secondly, chiller run for shifting cooling load in thermal energy storage only, third is

hybrid central air conditioning with thermal storage when on peak load demand happen in

central air conditioning system computed with thermal energy storage, and four the function of

thermal energy storage from 6 PM to 10 PM when the conventional chiller closed.

ICCHT2010 - 5th


9-11 December 2010

131- 7

Figure7: Operation of the thermal energy storage

4. ENERGY EFFICIENCY COST COPARISION AND ANALYSIS

4.1 Basic data for operation cost evaluation

An operation cost of the system are considered on chilled water power consumption, chilled

water primary pump power consumption, condenser water pump power consumption, chilled

water secondary pump power consumption, and cooling tower fan power consumption based

on electrical tariff in Jakarta and the expanse for makeup water evaporated in the cooling

tower. The calculation was conducted in spread sheet with some formula used as equations 1 to

5.

Chilled water power consumption:

CLCHQP 171.0 for 100% load (1)

CLCHQP 11.0 for 75% load



Chilled water pumps power consumption:

P

CHWP

CHWP

QHP

(2)

Which 1514.0CHW

Q l/s per 1 kW of cooling load and %80P

Condenser water pumps power consumption:

P

CDWP

CDWP

QHP

(3)

Which 2208.0CDW

Q l/s per 1 kW of cooling load and %80P

Cooling tower fan power consumption:

0071.0CLCT

QP kW per 1kW of cooling load

(4)

Makeup Water flow rate for Cooling Tower:

CDWEVQQ 03.0 (5)

With the fresh water price is Rp 3000/m3

ICCHT2010 - 5th


9-11 December 2010

131- 8

4.2 Comparison of Chillers Capacity Demand

The total chillers capacities for each system are different according to the technique

combination of cooling load. A centralized air conditioning system for individual building

need unequal capacity chillers 33 units for supply cooling load and standby. A centralized air

conditioning system for cluster building, need 11 same capacity chillers, thermal storage

system computed with centralized air conditioning system need 14 unequal capacity chillers,

and for hybrid system need 11 equal capacity chillers. Figure 8 illustrated a net capacity of

chiller demand for the building.

Figure 8: Total chiller capacity for the system (kW)

As result shown in histogram chart as given in figure 8, that without considering to the

capacity of standby chillers, centralized air conditioning system for individual building need

365.5 kW bigger than central air conditioning system for cluster building chiller capacity but

4148.11 kW smaller than chillers for centralized air conditioning system computed with

thermal energy storage. Inversely, the chillers capacity demand for hybrid centralized air

conditioning system with thermal energy storage need the smallest chillers capacity demand

compare to other options. In this option, the cooling load demand is stable in each period of

time and gives advantage of low initial cost, low operation cost, low in maintenance cost, and

long life cycle system.

4.2 Comparison of Power Consumption

The default chiller template from Carrier HAP program was introduced in setting partial

load. The power consumption factor is is taken as 0.055 ikW/kW for 25% of full load chiller

running, 0.077 ikW/kW for 50% of full load chiller running, 0.113 ikW/kW for 75% of full

load chiller running and 0.170 ikW/kW for 100% of full load chiller running [6,7].

ICCHT2010 - 5th


9-11 December 2010

131- 9

Figure 9: Energy consumption (MWh) per day in the different month of the year

The simulation indicated that centralezed air conditioing system for individual building

consume the most energy, then followed by centralized air conditioning system with thermal

energy storage for clsater building, and centralized air conditioning system without thermal

energy storage. The least power consumption is hybrid centralized air conditioning system with

thermal energy storage. By taking an energy consumption of the centralized air conditioning

system for individual building as a reference, The centralized air conditioning system can for

cluster for cluster building saves the energy consumption up to 1.27 MWh per day in average

which is equal to 1.88% of the total energy consumption for the decentralized air conditioning

system for individual building. The centralized air conditioning system with thermal energy

storage can reduce energy 1.03 MWh per day in average which is equal to 1.57%, and hybrid

the centralized air conditioning system with thermal energy storage for cluster bulding can save

the energy consumption 1.84 MWh day in average which is equal to 2.66%.

4.3 Comparison of Energy Consumption Cost

The simulation show that the most costly energy consumption system is centralized air

conditioing system, and then follow by centralized air conditioning system without thermal

energy storage, centralized air conditioning system computed with thermal energy storage, and

hybrid centralized air conditioning system with thermal energy storage.

ICCHT2010 - 5th


9-11 December 2010

131- 10

Figure 10: Energy rupiahs spent daily in the different month of a year

By taking an energy consumption cost of the centralized air conditioning system for

individual building as a reference, the centralized air conditioning system for cluster building

can save money from the energy consumption around milions rupiah per day in average which

is equal to 1.20% of the total energy consumption cost for the centralized air conditioning

system for individual building. The centralized air conditioning system computed with thermal

cooling storage can save money for the energy consumption around 21.75 milions rupiah per

day in average which is equal to 29.33%, and effcetiveness hybrid the centralized air

conditioning system with thermal cooling storage can save money for the energy consumption

around 22.32 milions rupiah per day in average which is equal to 30.10% of the total energy

consumption cost for the decentralized air conditioning system.

5. CONCLUSION

An analysis of the energy consumption indicates that an efficiency of air conditioning

system for a cluster of high rise building in Jakarta is suitable with centralized air conditioning

system with thermal energy storage. For both optional systems, centralized air conditioning

system computed with thermal energy storage and hybrid centralized air conditioning system

with thermal energy storage can reduce an expense for energy consumption more than 20

million rupiah per day in average compare to the normal centralized air conditioning system

without thermal cooling storage. Briefly, it is a good idea to apply the thermal energy storage

system for any air conditioning system that has an unstable cooling load demand and/or the

price of electricity is related to the time period when the electricity is purchased.

REFERENCES

[1] Brain Silveti and Mark Macracjen, 1998. Thermal storage and Deregulation. ASHRAE

Journal. USA.

[2] Ross D. Montgomery, 1998. Ice Storage System for School Complex. ASHRAE Journal.

Naples.

[3] Wayne S. Evans, 1998. Ice Storage Cooling for Campus Expansion. ASHRAE Journal

[4] Mark M. MacCracken, 2003. Thermal energy storage. ASHREA Journal.USA

[5] D. R. Wulfinghoff, 1999. Cooling Thermal Storage. Energy Efficiency Manual. PP 406

[6] Carrier Hap410b-HourlyAnalysis Program with ASHRAE standard 62-2001

[7] Kwork Tai Chan and Fu Wing Yu, 2004. How Chiller React to Building Load. ASHRAE

Journal. Hong Kong

[8] 2000 ASHRAE Handbook-HVAC System and Equipment, Chapter 1, Central System

Features

click here to install adobe acrobat reader · click here to install adobe acrobat reader file: ......

Documents