| Title |
Study on Fresh Air Load Reduction System by Using Geothermal Energy : Effect on Thermal Characteristic and Air Pattern of System by Opening Configuration |
| Keywords |
전열면적 ; 지하이중슬래브 ; 개구부 ; 외기부하 Heating surface area ; Underground double floor space ; Opening ; Fresh air load |
| Abstract |
This paper presents the effect of opening configuration on the thermal behavior and air pattern of earth tube system. The earth tube system is a fresh air load reduction system by using underground double floor space for air-conditioning. In order to analyze the effect of opening configuration on thermal performance of this system and air pattern in underground double floor space quantitatively, we used a model dealing with tree-dimensional profile of wind velocity and temperature in underground double floor space. In conclusion, it is confirmed that heat exchange of a fresh air is mainly performed with upper and lower wall in underground double floor space, and that heat exchange area increased by installing the opening near the wall. |