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Static simulation and experiment of CO2 heat pump water heater.
Author(s) : KATO D., YAMAGUCHI S., SAITO K., et al.
Summary
The purpose of this study is to develop the system simulation model for the CO2 heat pump water heater and investigate the validity of this model by comparing the simulation results with the experimental results. The detailed models of each component (the gas cooler, evaporator, compressor and expansion valve) are developed. An experiment is also carried out using the actual machine whose heating capacity is 22.3 kW and supplied hot water temperature is 90°C. The effects of the inlet water temperature and the outside air temperature on system characteristics (COP, heat exchanger rate, refrigerant flow rate and so on), are investigated by both simulation and experiment. As a result, the static simulation model of CO2 heat pump water heater was developed. For example, the precision of this model was found to be within 3.6% compared with the results of the experiment.
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Details
- Original title: Static simulation and experiment of CO2 heat pump water heater.
- Record ID : 2009-0366
- Languages: English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Publication date: 2008/09/07
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Indexing
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Themes:
Heat pumps techniques;
CO2 - Keywords: Comparison; Simulation; Heat pump; Modelling; Expérimentation; Transcritical cycle; Refrigerant; Heating; Domestic water; CO2
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- Author(s) : FERNANDEZ N., HWANG Y., RADERMACHER R.
- Date : 2008/09/07
- Languages : English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
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- Date : 2007/08/21
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- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
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- Author(s) : PEDERSEN S. V.
- Date : 2008/09/07
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- Formats : PDF
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- Author(s) : HALOZAN H., RIEBERER R.
- Date : 1999/03/18
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- Source: CO2 technology in refrigeration, heat pump & air conditioning systems (with presentation of the results of the European JOULE/THERMIE Research Programme on CO2 heat pumping systems - COHEPS). Workshop proceedings.
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