Development of Optimal Design Method for Ground-Source Heat-Pump System Using Particle Swarm Optimization

Abstract

The building sector is an energy-consuming sector, and the development of zero-energy buildings (ZEBs) is necessary to address this. A ZEB’s active components include a system that utilizes renewable energy. There is a heat-pump system using geothermal energy. The system is available regardless of weather conditions and time, and it has attracted attention as a high-performance energy system due to its stability and efficiency. However, initial investment costs are higher than other renewable energy sources. To solve this problem, design optimization for the capacity of geothermal heat-pump systems should be performed. In this study, a capacity optimization design of a geothermal heat-pump system was carried out according to building load pattern, and emphasis was placed on cost aspects. Building load patterns were modeled into hospitals, schools, and apartments, and, as a result of optimization, the total cost over 20 years in all building load patterns was reduced.

The Importance of Investing in the Energy Refurbishment of Hospitals: Results of a Case Study in a Mediterranean Climate

“…For the climate of Finland, according to the calculations of Kantola et al [26] for Espoo Hospital, the most affordable solutions are biogas energy, wood-chip heating, and ground-source heating. Moreover, Moon et al [27] studied the use of a ground-source heat pump system for a hospital located in Busan, Republic of Korea.…”