Compact and fast temperature-response heat pump water heater
Journal
American Society of Mechanical Engineers
Date Issued
1997
Author(s)
Lin F.H.
Abstract
A compact and fast temperature-response heat pump water heater was designed using multiple tanks and a sequential control device. The supply tank was heated as a priority by a freon-line switching device to increase the temperature recovery speed. A dual-tank prototype with 100-liter capacity was built and tested. The experimental results show that the time for temperature recovery of the supply tank from 42 °C to 54 °C reaches 10-20 minutes and COP reaches 2.0-3.0 during various seasons. The prototype tests show that an energy saving around 50%-70% as compared to the electrical water heater can be obtained. The hot water discharge efficiency of the heat pump is 0.912.
SDGs
Other Subjects
Energy conservation; Energy efficiency; Heat pump systems; Machine design; Tanks (containers); Heat pump water heaters; Water heaters
Publisher
ASME, New York, NY, United States
Type
conference paper