MEASURING METHOD OF HIGH-PERFORMANCE WINDOW SYSTEM IN ACTUAL CONDITION

Abstract

This paper presents simple and practical measuring system in order to determine the solar shading and heat transfer performance of advanced windows in actual conditions and verifies measurement accuracy of this system in practical use.
The presented system enables to measure directly heat gain from the window without assumption of heat transfer coefficient, and verified measurement accuracy by the examination using full-sized window mock-up and heat generator. In addition, existing calculation model for estimating annual heat load is verified in validity by comparison of long term actual measurement.