r717 romanian refrigeration systems analysis · r717 romanian refrigeration systems analysis...
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R717 ROMANIAN REFRIGERATION SYSTEMS ANALYSIS
Professor Gratiela-Maria TARLEA, Ph.D
TECHNICAL UNIVERSITY OF CIVIL ENGINEERING BUCHAREST The Faculty of Building Services
Thermodynamics Heat and Mass Transfer
President ROMANIAN GENERAL ASSOCIATION OF REFRIGERATION
Past President ASHRAE DANUBE CHAPTER BELGRADE
December 2015
INTRODUCTION - TEWI - GWP R134 =1430
GWP NH3 = 0 ODP NH3 = 0
3 260
1 300
1 0
500
1 000
1 500
2 000
2 500
3 000
3 500
R404A R134a R744 (CO2)
AMMONIA INDUSTRIAL REFRIGERATION IN ROMANIA IN THE LAST YEARS
Food Industry
Storage, 80%
Warehouse, 3%
Slaugther house, 5%
Diary, 2%
Skate ring, 1%
Poultry Farms, 2%
Vegetables , 2%
Fruites, 2%
Chemicals , 1%
Drinks, 2%
- Logistics Centers
- Meat & poultry
- Slaughterhouses
- Meat storage and processing
- Dairy industry
- Breweries, Beverages
- Breweries
- Soft drinks
- Fish processing
- Cold Store
- Ice rinks
Industrial Rrefrigeration
COMPRESSORS USED IN ROMANIAN AMMONIA REFRIGERATION PLANTS IN THE LAST YEARS
Ammonia Compressors
5%
15%
80%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
reciprocating 2 stage reciprocating 1 stage screw
CONDENSERS USED IN ROMANIAN AMMONIA REFRIGERATION
PLANTS IN THE LAST YEARS
Condensers
5%
95%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Water coold Evaporative
EVAPORATORS USED IN ROMANIAN AMMONIA
REFRIGERATION PLANTS IN THE LAST YEARS
Ammonia Evaporators
30%
40%
15% 15%
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
Fin space 4 mm Fin space 7 mm Fin space 10 mm Fin space 12 mm
Logistic & distribution centers
INNOVATION: Danone Logistics, Voluntari, Romania
• The refrigeration plant for the logistics center of Danone Romania
• Natural refrigerant, ammonia
• The system ensure minimum energy consumption including defrost optimization
• Innovation: compact manifold station ICF Danfoss - quick execution + maximum safety
due to the reduction in welding
References Food Processing – R717
Customer: Leading food processing company, Romania
• Modernization and expansion of existing plant with high GWP refrigerant R404A
• One of the most modern refrigeration plant in Romania
• Natural refrigerant, ammonia
• For efficient operation of screw compressors, condenser fans, ammonia and glycol pumps
are driven by frequency converters
• Operating costs optimization via:
• heat recovery
• discharge from the oil cooling
• floating condensing pressure around the plant
Logistics & distribution centers references
EXPERTISE: Leading Retail Logistic Center, Romania
• The most advanced refrigeration plant in Romania for a leading retail group
• Very high quality standards
• Natural refrigerant ammonia
• Heat recovery system in two-stages (one from discharge side, second from oil cooling)
• Automatic oil recovery system and all major equipment controlled by Variable Speed
Drives
ROMANIAN SUPERMARKETS WORKING WITH R134A / R744 (CO2) CASCADE SYSTEM
CITY REFRIGERATION CAPACITY
[KW]
FREEZING CAPACITY
[KW]
Buzau 65 10
P.Neamt 60 10
Lugoj 80 10
Campina 115 15
Rm.Valcea 80 15
Moinesti 45 10
Brasov 60 10
Tg.Mures 60 10
Mioveni 55 10
Slatina 55 10
Trans critic new
commercial
applications!
Supermarket – Hybrid R744/R134a references
EFFICIENCY/ENVIRONMENT: Carrefour Buzau, Romania
• Carrefour Express Buzau, August 2013: Frigotehnica completed the first project with new
hybrid technology R744/R134A
• Efficient and environmentally friendly refrigeration system
• Heating of the premises with heat recovered from refrigeration circuit and using electric
rolling valves
Hypermarket - Transcritical R744 references FIRST CO2 INSTALLATION: Carrefour Galati, Romania
the first TRANSCRITICAL CO2 REFRIGERATION
SYSTEM IN ROMANIA
• Complete refrigeration plant
• Heat recovery: preparation of hot water and for heating of the hypermarket
• Full compliance with client requirements
• Romanian engineering, delivery and installation
• Operation optimized: CO2 sub cooling and parallel compression
• Installation by our certified technicians.
Hypermarket – Transcritical R744 references
FULL CO2 INSTALLATIONS: Carrefour Brasov, Romania
Carrefour Vulcan, Bucuresti, Romania
Carrefour Targu Jiu, Romania, MegamMall
• Brasov: complete remodeling of an old refrigerating plant (R404A), and was performed while
the hypermarket operated in normal conditions
• Carrefour Vulcan and Targu Jiu: completely new trans-critical R744
TRAINING of PERSONNEL INVOLVED IN THE FIELD OF REFRIGERATION AND AIR- CONDITIONING ACCORDING TO THE
EU–PROJECTS AND REGULATIONS
CONCLUSIONS AND FUTURE WORK
• Demonstrating a strong commitment to protect the environment through the use of natural refrigerants and most advanced refrigeration solutions, Romania decided to use green technology for CO2 cascade and trans critic new commercial applications;
• CO2, Ammonia as ecological refrigerant alternatives;
• EU refrigeration and air conditioning legislation implementation in Romania.
