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Communication dans un congrès
On side refrigerant measurement of heat pump seasonal performances
Abstract : Heat pump systems have become very popular for space heating in the residential sector in Europe. However, there is no data available on the in situ seasonal heating performances of air-to-air heat pumps. This is due to the difficulty of measuring their thermal capacity on field over a long period. Several methods relying on air flow rate and enthalpy measurements are being considered for in-situ measurement for air-to-air heat pumps. But accuracy and reliability of these methods are still unknown. In this paper, we show the results of a method based on intrusive measurements (on the refrigerant side) adapted to the dynamic behavior. This method uses Coriolis flow meters measures for the refrigerant flow rate and for enthalpies. Results confirm that the refrigerant density measurement with a Coriolis flow meter can help to predict the refrigerant vapor quality with a satisfying accuracy if the quality is not too high. The method is validated by testing an air-to-water heat pump in laboratory and by using the water enthalpy method as a reference. The experimental results show that the method is reliable in dynamic conditions (including during the defrosting periods). This internal method can be used as a reference to check the air enthalpy method for air-to-air heat pumps.
Littérature citée [4 références]
https://hal-mines-paristech.archives-ouvertes.fr/hal-00770179
Contributeur : Bibliothèque Mines Paristech <>
Soumis le : vendredi 4 janvier 2013 - 15:54:11
Dernière modification le : jeudi 24 septembre 2020 - 17:22:03
Archivage à long terme le : : vendredi 5 avril 2013 - 05:58:04
Contributeur : Bibliothèque Mines Paristech <>
Soumis le : vendredi 4 janvier 2013 - 15:54:11
Dernière modification le : jeudi 24 septembre 2020 - 17:22:03
Archivage à long terme le : : vendredi 5 avril 2013 - 05:58:04
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D6_9_9_Rivere_HPC8_13.pdf
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