| Title |
Development of a Thermal Energy Storage Model for Performance Prediction of Heat Pump Systems Linked with Multiple Heat Sources |
| DOI |
https://doi.org/10.6110/KJACR.2024.36.6.300 |
| Keywords |
1차원 축열조; 2차원 축열조; 히트펌프; 신재생 에너지; 열에너지 저장장치 1-dimensional TES model; 2-dimensional TES model; Heat pump; Renewable energy; Thermal energy storage |
| Abstract |
This investigation delves into the formulation of a Thermal Energy Storage (TES) system, which is intricately integrated with a multi-source heat pump, aiming at the optimization of renewable energy utilization within building infrastructures. By juxtaposing one-dimensional (1D) and two-dimensional (2D) TES models, this study endeavors to mitigate the inefficiencies engendered by the intermittency inherent in renewable energy sources. The analysis elucidates that the 2D TES model markedly surpasses the 1D variant in faithfully rendering the storage and transference of thermal energy, resulting in pronounced enhancements in both heating and cooling efficiencies across diverse operating conditions. Noteworthy outcomes underscore that the 2D model facilitates up to approximately 4.5% more heating efficiency and 7.6% improved cooling efficiency compared to the 1D model, underlining its prowess in optimizing energy consumption and curtailing operational cycles. This superiority is ascribed to the 2D model’s comprehensive examination of heat transfer phenomena, encompassing a refined depiction of transverse temperature gradients, crucial for bolstering TES system efficacy. Moreover, the exposition emphasizes the role of the 2D TES model in advancing sustainable development objectives through its enabling of more effective integration of renewable energy into edifice energy schematics. This scrutiny not only propels the domain of energy efficiency forward but also proffers pragmatic methodologies for the design and management of energy-conserving buildings, directing us towards a more sustainable horizon. |