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Performance Simulation of Geothermal Heat Pump (GHP) System with Different Control Schemes
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 Title & Authors
Performance Simulation of Geothermal Heat Pump (GHP) System with Different Control Schemes
Lee, Doo-Young; Choi, Jae-Ho; Min, Kyong-Chon; Sohn, Byonghu;
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Geothermal heat pump (GHP) systems have been proved to be one of the most efficient systems for heating and cooling in buildings. However, an optimal energy performance depends on a good control of the system components, including heat pumps and circulation pumps, which affect to the total energy consumption of system. This paper presents the simulation results of the heat pump performance for two different control schemes, i.e. constant setting temperature (Control-A) and variable setting temperatures (Control-B) in buffer tank. A dynamic simulation tool, TRNSYS 17, was used to model the entire system and to assess the performance of the system. Simulation results show that the Control-B, which controls the temperature in buffer tank with outdoor air temperature, is a effective way to reduce the energy consumptions in heat pump (7.7%) and circulation pump (7.5%).
Geothermal Heat Pump System;Transient Simulation;TRNSYS;Temperature Compensation Control;Performance;
 Cited by
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