Effect of actual service conditions of existing buildings on energy efficient retrofitting

Studies the energy efficient retrofitting method based on actual service conditions. By this method with the aid of continuous measurements and simulation tool, the building energy consumption closer to actual conditions can be recorded, forming a basis on which a retrofitting scheme can be formulated and the scheme evaluation can be performed. The results from this method are different from that by conventional methods and it provides an exploratory way for building energy efficient retrofitting.