B-36 Analysis of an HVAC System with a Seasonal Ground Thermal Storage : (Part 5) Optimization of Discharge Operational Method and Its Verification

Abstract

The present paper proposes an optimized operational strategy of an actual HVAC system with a seasonal ground thermal storage using simulation. In order to improve the efficiency of the discharge operation, this paper conducts case studies about the discharge operational method and seeks the optimal operational method to minimize the value of an objective function. The proposed optimal operation method was applied to the actual system, and the measured operational data shows that the optimum operational method can save the energy consumption by approximately 57%, and improve system COP from 3.18 to 7.14 compared with the operational method of the previous year.