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http://dx.doi.org/10.6110/KJACR.2012.24.4.330

A Study on Control Method of Thermal Storage Tank for Varying Thermal Load in Heat Pump Water Heater  

Nam, Hyun-Kyu (Department of Mechanical Engineering, Yeungnam University)
Bai, Cheol-Ho (Department of Mechanical Engineering, Yeungnam University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.24, no.4, 2012 , pp. 330-335 More about this Journal
Abstract
A characteristic behavior of the thermal storage tank for varying thermal load in heat pump water heater was studied. The control method was suggested and applied. By measuring the temperature within the storage tank, the heat pump was ON/OFF controlled. The appropriate measuring position and the size of heat exchanger gives the minimized power consumption of heat pump. As the length of heat exchanger increases, the temperature measuring position goes down of the storage tank and the power consumption increases.
Keywords
Heat pump water heater; Thermal storage tank; Varyingthermal load; Control method;
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