Method for the climate-independent determination of the solar heat gain coefficient (SHGC; g-value) of transparent facade and membrane constructions from in situ measurements

摘要

The measurement of the energetic properties of transparent fa & ccedil;ade and membrane components under in situ conditions in real exposure to weathering naturally comes without stable steady-state conditions. To consider the transient use of the thermal capacities of a test facility, methods of time series analysis are compiled into one easy-to-use method. This paper presents this new method using the example of the Calorimetric Fa & ccedil;ade and Rooftop Test Facility of the Fraunhofer Institute for Building Physics (IBP). In case this method is to be used on the measurement data of a different test facility, an adaption of the method is required. The second part of this paper illustrates this adaption for a specific hardware. A validation using different known constructions shows the improvement achieved by using this new method and confirms its repeatability.(c) 2021 Elsevier B.V. All rights reserved.