DEVELOPMENT OF A SOLAR CONTROL WINDOW UTILIZING THE SEASONAL CHANGE IN SOLARALTITUDE : Part 1. Outline of the solar control window andits performance estimation

Abstract

With the use of a seasonal change in the solar altitude, a proposed solar control window, both of the inside surfaces of insulating glass striped with reflection films, can change both solar, visible ray transmittance and solar heat gain factor, according to the control purposes. The window can decrease solar heat gain, while increasing the use of daylight. This paper describes the principle of the solar control window and its solar control performance estimated by simulations. Next paper describes the performance estimated by experiments and the estimated simulation results of energy performance with the use of a typical building model.