| Title |
Feasibility Study of Bi-Directional Heat Supply in a Small Thermal Network |
| Authors |
Min-Hwi Kim ; Dong-Won Lee ; Deuk-won Kim ; Jaehyoek Heo |
| DOI |
https://doi.org/10.6110/KJACR.2021.33.1.031 |
| Keywords |
열 네트워크; 지역냉난방; 양방향 열공급/열거래; 진천 친환경에너지타운 Thermal network; District cooling and heating; Bi-directional heat supply/heat trade; Jincheon eco-friendly energy town |
| Abstract |
In this study, the existing small-scale centralized-district cooling and heating system was retrofitted to form a small-scale heat network with two thermal-energy prosumers, and we empirically analyzed the feasibility of this bi- directional thermal network. In the experimental test, we identified the operation status of a small-scale thermal network based on existing solar thermal and geothermal heat pumps and modified it to form a bi-directional thermal-network system. The bi-directional heat supply was created by calibrating two thermal-energy prosumers to supply heat at predetermined times and converting the absorption heat pump in another building into another thermal prosumer. This experiment confirmed that bi-directional thermal transfer can be accomplished in a thermal network as well as in the conventional heat-supply method. The results of these empirical experiments also showed that the use of bi-directional thermal networks in heat transactions is economically feasibility and eco-friendly. |