ボイドスラブを空調用ダクトとして利用する場合の熱性能の数値解析

概要

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Unsteady state thermal behavior of void slabs used as an air-conditioning duct was numerically analyzed with FEM computer program. Non-insulated void slab and eight types of insulated void slab were simulated. The following results were obtained: (1) When a void slab is used as a floor, inside surface of the void should be insulated. If the thickness of insulation exceeds 30 mm, the temperature difference on the floor surface becomes less than 1 degree C and the surface condensation during cooling period can almost be avoided. (2) When a void slab is used as a roof, inside surface of the void as well as exterior surface of the roof should be insulated. Thc recommended thickness of insulation is more than 30mm for inside surface of the void and 100 mm for exterior surface of thc roof, respectively.
1996-04-30