히트파이프와 에너지 절감 방안
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H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나
히트파이프와 에너지 절감 방안
R & D CenterDAEHONG Enterprise Co., Ltd.
2007. 3. 29
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Basic Equation
Conduction
Convection
Design Method
k, A, t, h
Material PropertiesGeometry
Cooling ConditionsCooling Devices
BestSolution
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Various Heat Sink
k
A
h
5 ~ 7 25 ~ 35 5000 ~
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나
Alum inum Rod
Copper Rod
Heat Pipe
- Q = 20 W - L = 0.5 m - D = 1.28 cm
T = 460'C
T = 206'C
T = 6'C
100 200 300 400 ('C )
Heat Pipe Performance, k
1/ΔT K∝
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나
0
10
20
30
40
50
60
70
80
90
100Te
mpe
atur
e Ri
se A
bove
Heat
Sin
k Te
mpe
ratu
re ('
C)
0.04
0.16
Heat Pipe
C opper
Aluminum
3 W Uniform Heat Load
inch.
Heat Pipe Performance, k
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나
증 발 부 응 축 부
(Evaporator Sec tion) (C ondenser Sec tion)단 열 부
r1
r2
Q in Q out
용 기(c ontainer)
(wic k)윅
작 동 유 체(working fluid)
C
Evap
orat
or
Cond
ense
r
Operation of Heat Pipe
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나
Axial Groove Sintered Metal
No Wick Wrapped Screen
Homogeneous Wick StructuresHomogeneous Wick Structures
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Composite Wick StructuresComposite Wick Structures
Screen Covered Wick Composite Screen
Artery Groove Artery Slab
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나
Container
LiquidCondensate
Vapor
Q in
Qout
Liquid Pool
Condenser
Evaporator
AdiabaticSection
Thermosyphon
g
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나What is it good for ?
• Transfers heat loads at very small temperature drops
• Precise isothermal control
• Has no moving parts and sealed unit
• Operates at any temperature from -420 to 2000℃ ℃• Can be constructed in almost any shape (tubes, flat plate, etc.)
• Can vary heat transfer (VCHP)
• Can only transfer heat in on direction (Diode)
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Working Fluid, Wick and Container CompatibilityWorking Fluid, Wick and Container Compatibility
Recommended Not RecommnededAluminumCarbon SteelNickelStainless StellCopperSilicaAluminumStainless SteelCopperStainless SteelSilicaCopper Stainless Steel Monel347 Stainless Steel Silica
Inconel Nickel Carbon Steel
CopperSilicaStainless Steel
Methanol Aluminum
Water
Thermex
Ammonia Copper
Acetone
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Operating RangeOperating Range
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Operating RangeOperating Range
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Figure of Merit ( )Figure of Merit ( ) lfgll hM /
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Temperature Distribution in Heat PipesTemperature Distribution in Heat Pipes
T X
S h ell (C o n ta in e r )
L iq u id (W ick )
V a p o r
E v a p o ra to r
T S
T L r O
C o n d en ser
T S
T L
r ir W
T O O
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal CircuitThermal Circuit
T Xq 1
T s ,eq 2
T l,eq 3
T i,eq 4
q 5
q 9
T s,c
q 8
T l ,c
q 7
T i,c
q 6
T o ,c
T c f
q 1 0
R 1
R 2
R 3 R 7
R 8
R 9
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Operating LimitsOperating Limits
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Various Heat Pipes : Variable Conductance Heat Pipe (VCHP)Various Heat Pipes : Variable Conductance Heat Pipe (VCHP)
VCHP for Temperature Control of a Micro Wave Transmitter
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Various Heat Pipes : Miniature Heat PipesVarious Heat Pipes : Miniature Heat Pipes
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Various Heat Pipes : Loop Heat Pipe (LHP)Various Heat Pipes : Loop Heat Pipe (LHP)
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Various Heat Pipes : Disk Shape Heat PipeVarious Heat Pipes : Disk Shape Heat Pipe
Working temperature 80-150oC
Size 8”, 12”
Working fluid FC
Container material aluminum
Range less than 0.20oC
Surface treatment anodizing
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나
Recovery Heat, T2
Hot Gas, T 3
Splitter Plate
Cold Air, T1
Exhaust Gas, T4
Finned Heat Pipes
Various Heat Pipes : Cross Flow type Heat ExchangerVarious Heat Pipes : Cross Flow type Heat Exchanger
열교환시 움직이는 부분 및 보조
동력이 없어 신뢰도가 높음 .
고온유체와 저온유체간의
혼입 없이 분리 가능 .
HP 일부에서 문제가 발생해도
HPHE 는 계속 작동 .
증발부와 응축부의 상대적인 길이를
변화시켜 온도 조절 가능
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Various Heat Pipes : Liquid Metal Heat PipeVarious Heat Pipes : Liquid Metal Heat Pipe
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Heat Pipe Heat Sink for IGBT in a Inverter or C/I SystemHeat Pipe Heat Sink for IGBT in a Inverter or C/I System
For a High Speed Train For a Subway Train
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (1)Thermal Design of HPHX (1)
A theater located in the University of Malaya Medical Center The airflow changing rate in hospitals: 15 times/hr (ASHRAE)
27 times/hr (Malaysia)
40 times/hr (IRAN)
Volume : 200 ㎥ Volume flow rate : 1.53 ㎥ /s
Outdoor Air Temp. : 24 ~ 36℃ Outdoor RH : 30 ~ 660%
Room Air Temp. : 23 ~ 24℃ Room RH : 46 ~ 60%
• Design Specification (YH Yau, Building Serv. Eng. Res. Technol. 27,4 (2006))
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (1)Thermal Design of HPHX (1)
• Plant A
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (1)Thermal Design of HPHX (1)
• Plant B
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (1)Thermal Design of HPHX (1)
• Plant C
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (2)Thermal Design of HPHX (2)
Temperature ( )℃ Relative Humidity (%)
A-L A-H B-L B-H C-L C-H A-L A-H B-L B-H C-L C-H
Outdoor Air 24 36 24 36 24 36 30 66 30 66 30 66
After Sensible HX 24 26 41 66
After PHHX1 Evp. 19 31 19 31 40 87 40 87
After PHHX2 Evp. 14 26 56 100
After CWC 11 15 9 15 9 15 95 99 93 100 98 100
After PHHX2 Con. 15 19 70 72
After HC 19 20 19 20 19 20 57 73 51 72 52 72
Room Air 23 24 23 24 23 24 47 60 42 60 43 60
After HPHX1 Con. 28 29 28 29 31 43 31 42
• Simulation Results
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (1)Thermal Design of HPHX (1)
Plant Additional External Static Pressure (Pa) Fan Power (kW)
A 170 37,000B 320 40,000C 640 48,000
Plant Pre-heating Coil(KWh)
Chiller(KWh)
Heating Coil(KWh)
Total(KWh) 증감
A 22,000 216,000 94,000 369,000 0
B 0 190,000 98,000 328,000 41,000(11%)
C 0 142,000 63,000 253,000 116,000(31%)
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (2)Thermal Design of HPHX (2)
15 'C300C M M
AIR85℃
95℃
115℃
125℃
ST EA M
현재 시스템
85℃
95℃
115℃
125℃
STE AM15'C300C M M
AIR
160 'C500 CM M
G AS
H PH X
75 'C
HPHX 적용 시스템
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (2)Thermal Design of HPHX (2)
Tem
pera
ture
Length
160℃
15℃75℃
300 C MM
500 C MM
Total Heat Transfer Rate : 332 kW
Exhaust Temperature of Hot Side : 117℃
Frontal Area : flow velocity 9.8 m/s Heat Transfer Rate per HP :
2.11 kW
Heat Pipe Array : 18 X 10
Dimension of H/X :
0.9×1.6×1.0 m
Pressure Drop : 1700 Pa
= 12.8mmHg
• Design Specification (DAEHONG R & D Center)
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나Thermal Design of HPHX (2)Thermal Design of HPHX (2)
회수 열량 : 332 kW
히트파이프 열교환기 : 7,000 만원
덕트 및 배관 비용 : 2,000 만원
기타 비용 : 1,000 만원
사용 시간 : 8 시간 / 일 , 2920 시간 / 년
회수 비용 :
-. 1 steam ton / 1hr = 800kW = 40,000 원 / hr
-. 332 kW = 16,600 원 / hr → 132,800 원 /day = 48,472,000 원 /year
회수 기간 : 2.06 년 (1 일 8 시간 기준 )
0.69 년 (1 일 24 시간 작동 기준 )
H E A T P I P E S a n d T H E R M A L S O L U T IO N
2007. 3. 29ESP 금속조립분과 세미나
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