Multi-objective optimization study on thermal insulation scheme for envelopes of temporary office buildings for Winter Olympics under severe cold mountain conditions based on entropy-TOPSIS method

Based on the DesignBuilder heat load calculation model and the entropy-TOPSIS method, a multi-objective comprehensive comparison and selection model for the thermal insulation scheme for the envelopes of temporary office buildings in severe cold and windy areas of the Winter Olympics is established. The indoor effective space volume, the average heat transfer coefficient of building envelopes, the annual operating carbon emissions, the discounted annual average value of initial investment and operating expenses of thermal insulation materials are used as the quantitative indicators of the practical performance, thermal insulation performance, carbon emissions and economic benefits of temporary buildings, respectively. By calculating the closeness degree of each scheme, the optimal scheme is determined. The measured results show that the thermal insulation performance of building envelopes of the optimal scheme is better than that of the ordinary scheme, and is more suitable for severe cold mountain conditions.