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EXPERIMENTAL VALIDATION OF ON-FIELD MEASUREMENT METHOD FOR A HEAT PUMP SYSTEM WITH INTERNAL HEAT EXCHANGER

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Résumé

Determining the on-field heating capacity and coefficient of performance (COP) of residential air-to-air heat pumps (HP) is problematic, given that measuring accurately the enthalpy and, specifically, the mass flow rate of air is challenging. This paper validates a promising on-field performance measurement method for HPs with an internal heat exchanger (IHX) as vapor injection system using experimental data obtained from air-to-water HP prototype in several operating conditions. The method is based on refrigerant fluid measurements and component energy/mass balances. Non-intrusive sensors, such as surface temperature sensors are used to estimate pressure and refrigerant mass flow rate in different types of HP systems, including air-to-air. Obtained results compared with intrusively measured reference values in steady-state conditions are in good agreement, suggesting that a comprehensive performance analysis can be conducted in already-installed high efficiency residential IHX air-to-water HPs, as well as IHX air-to-air HPs.
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Dates et versions

hal-01462099 , version 1 (08-02-2017)

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  • HAL Id : hal-01462099 , version 1

Citer

Maria Goossens, Philippe Riviere, Cedric Teuillieres, Dominique Marchio, Cong-Toan Tran. EXPERIMENTAL VALIDATION OF ON-FIELD MEASUREMENT METHOD FOR A HEAT PUMP SYSTEM WITH INTERNAL HEAT EXCHANGER. 24th IIR International Congress of Refrigeration (ICR 2015), Aug 2015, Yokohama, Japan. ⟨hal-01462099⟩
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