Design basis for mechanical vapour compression heat pump systems

1999 ◽  
pp. 19-34
Keyword(s):  
Heat Pump ◽  
Design Basis ◽  
Vapour Compression

scholarly journals Simulation on vapour compression heat pump system for rough rice drying

2020 ◽  
Vol 542 ◽  
pp. 012042
Author(s):  
L O Nelwan ◽  
R P A Setiawan ◽  
M Yulianto ◽  
Irfandi ◽  
M Fachry ◽  
...  
Keyword(s):  
Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Rough Rice ◽  
Rice Drying ◽  
Vapour Compression

scholarly journals Performance estimation of membrane dehumidification based on heat exchanger analogy approaches using ε-NTU model

2020 ◽  
Vol 15 (2) ◽  
pp. 299-307
Author(s):  
Gilbong Lee ◽  
Chul Woo Roh ◽  
Bong Soo Choi ◽  
Eunseok Wang ◽  
Ho-Sang Ra ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Heat Pump ◽  
Cooling System ◽  
Design Guidelines ◽  
Performance Estimation ◽  
Department Of Energy ◽  
Dew Point ◽  
Design Parameters ◽  
Evaporator Temperature ◽  
Vapour Compression

Abstract Reports by the US Department of Energy in 2014 evaluated membrane heat pump technology as one of the most promising alternatives to conventional vapour compression methods. Vapour compression methods maintain an evaporator temperature lower than the dew point to deal with the latent heat load. In membrane heat pump systems, only the water vapour is transferred and there is no phase change. The migration is caused by the difference in vapour pressure before and after the membrane. A vacuum pump or blower is used to create the pressure difference. However, there is no methodology for predicting dehumidification performance of membranes when used as part of a cooling system. In this study, using the assumption that there is a similarity between heat transfer and moisture pervaporation, the performance indices of the membrane are derived using a well-known heat exchanger method, the ε-NTU models. Performance estimations are calculated for two representative system layouts: bypass and vacuum. Simple relations between design parameters are suggested, giving design guidelines for researchers.

Performance prediction of a vapour-compression heat-pump

2004 ◽  
Vol 79 (3) ◽  
pp. 327-344 ◽  
Author(s):  
Adnan Sözen ◽  
Erol Arcaklioğlu ◽  
Ali Erisen ◽  
M.Ali Akçayol
Keyword(s):  
Heat Pump ◽  
Performance Prediction ◽  
Vapour Compression
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