International Refrigeration and Air Conditioning Conference at Purdue, July 14-17, 2008
CO2 transcritical cycle has been investigated as a potential alternative technology for the application of heat pump water heater. In this study, two tube-in-tube gas coolers in the CO2 transcritical cycle heat pump water heater are studied. Two gas coolers are different on the internal tube. The one has only a single internal tube and the other has three screwed internal
International Refrigeration and Air Conditioning Conference at Purdue, July 14-17, 2008
CO2 transcritical cycle has been investigated as a potential alternative technology for the application of heat pump water heater. In this study, two tube-in-tube gas coolers in the CO2 transcritical cycle heat pump water heater are studied. Two gas coolers are different on the internal tube. The one has only a single internal tube and the other has three screwed internal tubes. Two gas coolers were simulated and tested in the experimental system. The results show that although the heat exchanging surfaces of two gas coolers are same, the performance of the gas cooler with three screwed inner tubes is not better than the one with a single inner tube at least. But the gas cooler with three screwed inner tubes can help to decrease ratio of heating capacity and weight of gas cooler and pressure drop of water side and this type gas cooler can get a good performance by increasing the proper length of inner tube.
CO2 transcritical cycle has been investigated as a potential alternative technology for the application of heat pump water heater. In this study, two tube-in-tube gas coolers in the CO2 transcritical cycle heat pump water heater are studied. Two gas coolers are different on the internal tube. The one has only a single internal tube and the other has three screwed internal tubes. Two gas coolers were simulated and tested in the experimental system. The results show that although the heat exchanging surfaces of two gas coolers are same, the performance of the gas cooler with three screwed inner tubes is not better than the one with a single inner tube at least. But the gas cooler with three screwed inner tubes can help to decrease ratio of heating capacity and weight of gas cooler and pressure drop of water side and this type gas cooler can get a good performance by increasing the proper length of inner tube.
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By shecco , published Nov 04, 2016 - 0 pages
By shecco , published Nov 04, 2016 - 0 pages