Application of local heat-source method to on-site detection for building energy efficiency

Puts forward an on-site detection method—the local heat-source method with constant heat release rate for the heat transfer coefficient of walls. Presents the theoretical basis of steadily detecting the heat transfer coefficient using this method. Designs the experimental detection system. Generates a three-dimensional steady heat transfer program to simulate heat transfer processes of the wall in different boundary conditions, and establishes the artificial neural network (ANN) to identify the heat transfer coefficient. The identification results have a good accordance with the analysing results.