Proper

Abstract

In order to reduce the cooling load caused by solar radiation inflow, blind applications and automatic control methods are being studied from various angles. However, automatic control systems using insolation sensors are difficult to commercialize due to the high cost of the sensor. Therefore, the purpose of this study is to propose a slat control algorithm based on illuminance sensors for a triple-glazed window with integral blinds. The validity of the proposed algorithm would then be verified through a simulation performance evaluation. The case settings for performance evaluation are as follow: Case 1 (double-hung window), Case 2 (triple-glazed window), Case 3 (triple-glazed low-E window with integral blinds), and Case 4 (triple-glazed window with the algorithm proposed in this study). The performance evaluation results are as follow. 1) As a result of cooling energy calculation, Case 4 shows the lowest rate of cooling load compared to other cases. 2) As a result of deriving the PMV, Case 4 was -0.9 ~ 0.7 throughout the year, which is most similar to the thermal comfort range compared to other cases.