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Energy efficiency modelling of residential heat pump water heater

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Résumé

The heat pump water heater (HPWH) is one of the most energy efficient technologies for heating water for household use. The present work proposes a simplified model of coefficient of performance and examines its predictive capability. The model is based on polynomial functions where the variables are temperatures and the coefficients are derived from the Australian standard test data, using regression technics. The model enables to estimate the COP of the same HPWH under other test standards (i.e. US, Japanese, European and Korean standards). The resulting estimations over a heat-up phase and a full test cycle including a draw off pattern are in close agreement with the measured data. Thus the model allows manufacturers to avoid the need to carry out physical tests for some standards and to reduce product cost. The limitations of the methodology proposed are also discussed.
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Dates et versions

hal-01464689 , version 1 (10-02-2017)

Identifiants

  • HAL Id : hal-01464689 , version 1

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C.T. Tran, P. Riviere, P. Waide. Energy efficiency modelling of residential heat pump water heater. 9th Conference on Sustainable Development of Energy, Water and Environment Systems, Sep 2014, Venise, Italy. ⟨hal-01464689⟩
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