床下空間を空調還気経路とした大空間の暖房特性 : 躯体熱容量と空調制御を組み込んだ非定常CFDによる検討

概要

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In large enclosures such as gymnasiums, it is difficult to control air temperature in the occupied zone comfortable in heating condition. There are two main reasons that air temperature in an occupied area is not increased efficiently in large enclosures. 1) A hot supplied air goes up and stays upper area due to buoyancy and it takes long time to reach lower occupied area. 2) Heat capacity of building structure disturbs to increase air temperature and cold air stays lower area. In this paper, the field measurement is presented in which the under floor return air system is applied to the gymnasium to resolve these problems. The CFD simulations coupled with the control simulation of the supply air temperature are also demonstrated and the details of temperature distributions and time dependence are discussed.
社団法人日本建築学会の論文
2005-10-30