The document discusses natural refrigerants and heat pump systems using refrigerants with zero ozone depletion potential (ODP) and low global warming potential (GWP). It provides technical specifications for Mayekawa reciprocating and screw compressor models and presents examples of heat pump installations for hot water production. Cost analyses show heat pumps can provide heating at lower operating costs compared to gas boilers or steam systems.

1. DOC.2010-141 R2 Presented by Jan Boone M AYEKAWA Europe nv/sa

2. DOC.2010-141 R2 OZONE- AND CLIMATE FRIENDLY PRODUCTS USING ZERO ODP AND LOW-GWP REFRIGERANTS IN PARTICULAR NATURAL REFRIGERANTS TECHNICAL SPECIFICATIONS INVESTMENT AND OPERATING COSTS ENERGY EFFICIENCY MARKET AVAILABILITY M AYEKAWA Europe nv/sa

3. DOC.2010-141 R2 Hot water supply NH3 Ammonia CO2 Carbon Dioxide HC Hydrocarbons H2O water AIR M AYEKAWA Europe nv/sa

4. System Application Applicable Temperature Ranges [degC] CO 2 Brine NH 3 Single stage NH 3 Heat Pump CO 2 Heat Pump CO 2 /NH 3 Cascade CO 2 Brine NH 3 2- stage -40 -20 0 +20 +40 +60 +80 -60 M AYEKAWA Europe nv/sa

6. Our products / high pressure compressor N6HK GH series Reciprocating compressor N6HK Pressure : 40bar 50bar (available February 2010 ) Speed : 900~1600rpm at 40bar 900~1450rpm at 50bar Swept volume; 120~193m3/h 100%Load Screw compressor Pressure: 50bar Speed : 2950rpm, 3550rpm Swept volume 2950 / 3550 rpm N160GHS: 434 / 522 m3/h N250GHS; 1552 / 1867 m3/h N320GHS; 3212 / 3865 m3/h Note : N160GHS applied with frequency driven motor. DOC.2010-141 R2 M AYEKAWA Europe nv/sa

7. Capacity table Qh @2950rpm (N6HK ~1600rpm maximum) Hot water outlet temperature 70~85℃ （ Tc=75~90℃) Heat source temperature 20~50℃ （ Te=15~45℃ ） Note: This capacity is included two stage heat pump capacity. DOC.2010-141 R2 M AYEKAWA Europe nv/sa 200kW 10,000kW 600kW 1,000kW 5,000kW N6HK 190~550kW N160GHS 490~1400kW N250GHS 2500~4400kW N320GHS 5500~9700kW

8. Data sheet N6HK 970rpm 1450rpm 1600rpm DOC.2010-141 R2 M AYEKAWA Europe nv/sa

9. N6HK DOC.2010-141 R2 M AYEKAWA Europe nv/sa

10. Data sheet N160GHS DOC.2010-141 R2 M AYEKAWA Europe nv/sa

11. N250GHS N320GHS DOC.2010-141 R2 M AYEKAWA Europe nv/sa

12. DOC.2010-141 R2 COP-h HOT WATER TEMPERATURE (°C) 85 25 35 45 55 75 HEAT SOURCE(°C) 25 35 45 55 QC kW QC : heating capacity COP-h : coefficient of heating perform. M AYEKAWA Europe nv/sa

13. DOC.2010-141 R2 M AYEKAWA Europe nv/sa

14. N160GHS DOC.2010-141 R2 M AYEKAWA Europe nv/sa

17. P&ID compressor part DOC.2010-141 R2 M AYEKAWA Europe nv/sa

18. P&ID heat exchanger part DOC.2010-141 R2 M AYEKAWA Europe nv/sa

19. Drawing DOC.2010-141 R2 M AYEKAWA Europe nv/sa

20. Complete package heat pump unit Specifications; Heat capacity: 480kW(maximum) Compressor speed: 900~1600rpm (frequency inverter drive) Absorbed power:39~75kW Heating COP= 6.4 Hot water conditions Heat source: Hot spring Temperature:40->60℃ Temperature:40->35℃ Flow rate:20.6m3/h Flow rate:69.8m3/h Use application: Process water in the factory DOC.2010-141 R2 M AYEKAWA Europe nv/sa

21. Installation on the site for district heating plant DOC.2010-141 R2 M AYEKAWA Europe nv/sa

23. High stage heat pump unit Existing system M AYEKAWA M-HSH Unit Water inlet Hot water outlet Condenser Sensible heat exchanger N6HK Receiver Condenser 40°C High receiver Evaporator Modification point Total COP = 6.0~up to 9.0 12°C 60°C DOC.2010-141 R2 M AYEKAWA Europe nv/sa

24. Two stage heat pump unit DOC.2010-141 R2 M AYEKAWA Europe nv/sa

25. Thermal stratification tank High stage heat pump unit (Meat production) DOC.2010-141 R2 M AYEKAWA Europe nv/sa

26. DOC.2010-141 R2 M AYEKAWA Europe nv/sa COSTS STEAM HP SUMMER HP WINTER Heating capacity kW/day 5581 5581 5581 Steam load (latent heat 0.6395kW/kg) Kg/day 8727 Heating capacity/hr kW 406 305 Running time/day hr 13.7 18.3 Operating days days 300 115 250 Yearly heating capacity mWh 1.674 640 1.396 Energy per year 2.618 (ton) (steam) 65.698 (kW, 41.7kW/hr) 191.235 (kW, 41.8kW/hr) Energy cost € 91.342 (34.89€/ton) 4.599 (0.07 €/kWh) 13.386 (0.07 €/kWh) Installation cost (excl.watersystem) € 186.000 Yearly running cost saving € 73.357 Payback time years Approx.2.6

28. Two stage heat pump unit Condenser Heat recovery vessel 30~40℃ 77℃ Heat source River water / wastage water / geothermal water Sea water …… Heat recovery ( Evaporator ) 60℃ Low stage Compressor High stage Compressor Intermediate pressure control is very important. Best solution : Install Frequency drive at low stage compressor. Install stop valve before high stage compressor. DOC.2010-141 R2 M AYEKAWA Europe nv/sa

29. Two stage heat pump unit DOC.2010-141 R2 M AYEKAWA Europe nv/sa

30. Two stage heat pump unit DOC.2010-141 R2 M AYEKAWA Europe nv/sa

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33. Norway / Kongsberg / 2 x N160GHS two stage Heat pump system 2.400kW DOC.2010-141 R2

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37. DOC.2010-141 R2 M AYEKAWA Europe nv/sa COSTS GAS BOILER HEAT PUMP plant heating capacity kW 2513 2513 Load ratio (average) % 70 70 Efficiency % 85 Required energy heating capacity kW 2069 975 Operating hours hrs 5000 5000 Yearly capacity mWh 10.345 8.795 Energy per year 1.034.500 (liter) (gasoil 10kWh/liter) 4.875.000 (kWh) (975kW/hr/4 compr.) Energy cost € 982.775 (0.95€/liter) 524.550 (0.1076€/kWh) Installation cost(compr-motor set excl.h.exch) € 1.000.000 Yearly running cost saving € 458.225