Analysis of the economic insulation layer thickness of external-wall in North Henan

摘要

In this paper, the software of DeST-h was used to simulate the energy consumption of a residential building in Anyang, henan province, based on the comparison of external-wall with different insulation thickness. By analyzing the investment costs of exterior insulation material and the operation costs of the building, using net present value, dynamic investment recovery period and some other indexes to evaluate economic effects of building with different external wall insulation thickness. Finally, the economical insulation thickness was determined, providing a reference for building energy saving.