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Journal articles
Refrigerant-based measurement method of heat pump seasonal performances
Abstract : There is no reliable measurement method of air-to-air heat pump seasonal performances. In this paper, we tested a method based on intrusive measurements on the refrigerant side. The method proposed uses two Coriolis mass flow meters for the measurement of the refrigerant flow rate and of the vapor quality at the indoor heat exchanger outlet. The method is validated by testing an air-to-water heat pump in laboratory conditions and by using the water enthalpy method as a reference. Results confirm that the refrigerant density measurement with a Coriolis flow meter can help to predict the refrigerant vapor quality with satisfactory accuracy if the quality is not too high. The method is also reliable in dynamic conditions (including for defrosting periods). It will then be used as a reference to check the accuracy of different in situ measurement methods for air-to-air heat pumps.
Keywords :
Air-to-water heat pump
Coriolis flowmeters
Coriolis mass flow meter
Dynamic condition
Enthalpy method
Experimentation
Heat pumps
In-situ measurement
Laboratory conditions
Measurement methods
Performance
Refrigerant flow
Refrigerant vapors
Reliable measurement
Seasonal performance
Vapor quality
Refrigerants
https://hal-mines-paristech.archives-ouvertes.fr/hal-00769729
Contributor : Bibliothèque MINES ParisTech Connect in order to contact the contributor
Submitted on : Thursday, January 3, 2013 - 9:26:57 AM
Last modification on : Wednesday, November 17, 2021 - 12:32:57 PM
Contributor : Bibliothèque MINES ParisTech Connect in order to contact the contributor
Submitted on : Thursday, January 3, 2013 - 9:26:57 AM
Last modification on : Wednesday, November 17, 2021 - 12:32:57 PM