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Heat pump water heater products are attracting increasing attentions due to energy-saving feature and continuous improvement in energy efficiency standards. Control logic is a key factor affecting the energy efficiency of heat pump water heater, besides refrigeration cycle design, compressor choice, refrigerant selection, etc. The traditional development method of control logic requires repeated experiments and consumes a lot of time and labor resources. In order to rapidly and efficiently develop control logic for heat pump water heater, a model-based control development method is proposed in this paper. A dynamic simulation model of heat pump water heater is established and validated first, which includes a simplified model of the heat pump and a stratified model of the water tank. The heat pump water heater model is used to predict the power, energy consumption, sensor temperature of the water tank, and outlet water temperature during the operation of the heat pump water heater. An energy-saving control logic and a traditional control logic are then compared based upon the proposed dynamic simulation model of heat pump water heater. Simulation results showed a 15.7% reduction in energy consumption compared to traditional control logic. The dynamic simulation model completed a performance test of 7 days within 10 minutes of calculation, which significantly improves the efficiency of control development for heat pump water heater.
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- Titre original : Model based control development for heat pump water heater.
- Identifiant de la fiche : 30033188
- Langues : Anglais
- Sujet : Technologie
- Source : 2024 Purdue Conferences. 20th International Refrigeration and Air-Conditioning Conference at Purdue.
- Date d'édition : 17/07/2024
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