ドライエリアを付設した半地下居室の熱環境性能 : 数値計算による分析と自然室温状態での長期実測

Abstract

In order to obtain fundamental information on thermal performance of a semi-underground room with areaway, long-term measurement for a twin-type test house on the campus of Tohoku University was made under the situation without auxiliary heating during 18 months from Dec., 1990 to May, 1992. This paper reports the measurement results and discusses thermal effect of the area wayby comparison with results conducted from previous measurement for the test house without the areaway. Results of computersimulations using a two-dimensional finite element program are also discussed. Main findings obtained by the measurement and the simulations are summarized as follows: 1) From viewpoints of stability of room air temperature and energy conservation for heating and cooling, the thermal performance of a semi-underground room with south-facing large window and areaway is not so regardful because of greater heat gain and loss through it. 2) However, if the areaway is covered with glass during heating season, it is estimated that the performance becomes better.