STATISTICAL METHOD FOR CALCULATING PERFORMANCE INDICES OF BUILDING THERMAL MASS STORAGE SYSTEM BY FIELD MEASUREMENT

Abstract

In assessing the performance of building thermal mass storage system, it is necessary to compare operations with and without thermal storage. Conditions vary day by day during a field measurement. Therefore, the comparison must allow for differences in the conditions, and its accuracy is questionable. As a solution to this problem, we propose a statistical method, which calculates the constants of assumed equations relative to heat and temperature through a regression analysis. Application of this method to a field measurement shows a charging ratio of approx. 0.9, and an effectiveness of building thermal mass storage of approx. 0.7.