| Title |
Analysis of Greenhouse Gas and Operation Cost Reduction Effect of a Solar Thermal-based Renewable Energy Convergence System Greenhouse |
| Authors |
Deukwon Kim ; Dongwon Lee ; Jaehyeok Heo ; Min-hwi Kim |
| DOI |
https://doi.org/10.6110/KJACR.2022.34.10.447 |
| Keywords |
온실가스; 시설원예; 히트펌프; 운영비용; 계간축열; 태양열 Greenhouse gas; Greenhouse; Heat pump; Operation cost; Seasonal thermal energy storage; Solar thermal |
| Abstract |
In this study, the empirical data of a heating season of renewable energy convergence system installed at the Purme farm in Yeoju, Gyeonggi-do was analyzed. Through comparative comparison with other heat sources such as oil and electricity, which are widely used in conventional greenhouses, the operation cost and greenhouse gas reduction effect of the proposed system were analyzed. The proposed renewable energy convergence system consisted of solar collectors, seasonal thermal energy storages, hybrid source heat pumps, and ground source heat pumps. The heat generated from the proposed system was stored in the thermal energy storage and supplied to the greenhouse. From October 2021 to March 2022, about 38.4% of the total 481.9 MWh of heating heat at the farm was supplied directly or indirectly through the solar system. In addition, the system COP of the heat pump system was determined as 2.28, and the system COP of the entire proposed system was 2.40. Both the operation cost and greenhouse gas emission of the proposed system were lower than the conventional systems. |