Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title Analysis of Empirical Operation Results of Cooling/Heating season of Hub Thermal Energy Storage for Bidirectional Heat trading
Authors Deukwon Kim ; Dongwon Lee ; Minhwi Kim ; Jaehyeok Heo ; Joon Heo ; Kyoungchon Min
Page pp.289-299
ISSN 1229-6422
Keywords 대수층을 활용한 지중축열조; 보어홀을 활용한 지중축열조; 히트펌프; 열거래; 허브 축열조 ATES; BTES; Heat pump; Heat trading; Hub Thremal energy Storage
Abstract The imperative of climate change calls for carbon reduction throughout diverse sectors, and within the HVAC industry, leveraging renewable energy emerges as a pivotal strategy for carbon mitigation. The heat pump(HP) system stands out as an advanced technology for the efficient exploitation of renewable energy, having attained significant technological sophistication and being adopted for a wide range of applications. This investigation embarked on empirical research aimed at augmenting the effective deployment of HP systems, with a special emphasis on the heat pump integrated with thermal energy storage (HP-TES). A novel hub thermal energy storage(hub TES) framework, facilitating bidirectional heat exchange and optimizing the use of the HP system, was developed and empirically assessed. Employing a hub TES system of 400-ton capacity situated in Busan Myeongji International City resulted in operational cost savings of approximately 18.5% when juxtaposed with conventional central heating supply systems. The introduction of the hub TES system, underpinning bidirectional heat trading, effectively mitigated the fluctuating nature of renewable energy sources by catering to diverse thermal demands. Furthermore, the study verified the dual benefits of enhanced heat supply stability and reduced operational costs through the communal utilization of thermal infrastructure.