A compact and fast temperature-response heat pump water heater
Journal
ASME Turbo Expo
ISBN
9.78079E+12
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. Copyright © 1997 by ASME.
SDGs
Other Subjects
Energy conservation; Hot water distribution systems; Pumps; Solar water heaters; Tanks (containers); Water heaters; Electrical water heater; Heat pump water heater; Heat pumps; Line switching; Prototype tests; Sequential control; Temperature recovery; Temperature response; Heat pump systems
Publisher
American Society of Mechanical Engineers (ASME)
Type
conference paper