Dynamic modeling of an air source heat pump water heater

Abstract : This paper presents a dynamic simulation model to predict the performance of an air source heat pump water heater (ASHPWH). The mathematical model consists of submodels of the basic system components i.e. evaporator, condenser, compressor, and expansion valve. These submodels were built based on fundamental principles of heat transfer, thermodynamics, fluid mechanics, empirical relationships and manufacturer's data as necessary. The model simulation was carried out using MATLAB software. Refrigerant R134a with two different reservoir volumes 150L & 200L are investigated. Additionally, different ambient air temperatures are considered. Results show that the rate of hot water production increases as the water reservoir volume decreases and the integrated COP increases as the ambient temperature increases.
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  • HAL Id : hal-00770143, version 1

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Farouk Fardoun, Oussama Ibrahim, Assaad Zoughaib. Dynamic modeling of an air source heat pump water heater. 10th International Energy Agency Heat Pump Conference 2011 - HPC 2011, May 2011, Tokyo, Japan. 12 p. ⟨hal-00770143⟩

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