| Keywords |
Rooftop greenhouse; Energy requirement; Energy#; Predictive formula; Orange data mining |
| Abstract |
Due to abnormal climate conditions affecting crop production and increased transportation energy due to urbanization, glass greenhouses constructed on rooftops of multi-story buildings in urban cities have emerged as a novel building type. However, there is a limited discourse on the facade performance of rooftop glass greenhouses in Korea. Hence, this study examines the impact of applying key values associated with three envelope performance factors (building thermal transmittance, greenhouse thermal transmittance, and airtightness) within an integrated rooftop greenhouse building, focusing on energy implications. To achieve this objective, the energy demand of a standalone greenhouse and building is compared with that of a combined rooftop greenhouse building. The results emphasize the necessity of ensuring airtightness performance and highlight that achieving a 1+++ grade performance necessitates additional enhancements in either building or greenhouse thermal transmittance. Furthermore, through the energy demand predictive calculation formula, it is quantitatively verified that airtightness performance plays a dual role in influencing both the building and greenhouse thermal transmittance rates. Additionally, a calculation formula that can be used to predict energy requirements when constructing a rooftop greenhouse building similar to the target site for analysis was presented separately. |