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Study on Fresh Air Load Reduction System by Using Geothermal Energy - Effect on Thermal Characteristic arid Air Pattern of System by Opening Configuration -  

Son Won-Tug (Satellite Venture Business Laboratory, Mie University)
Lee Sung (Department of Building System Engineering, Dong-Eui University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.16, no.11, 2004 , pp. 1092-1100 More about this Journal
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.
Keywords
Heating surface area; Underground double floor space; Opening; Fresh air load;
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