Dependence Degree Of Office Building Indoor Environment To Air-conditioning And Lighting System

In recent years,passive energy saving technologies including the building shape,the window to wall ratio(WWR),the sun-shading measures and so on have been applied in architectural design in our country.However,the research in passive energy saving technologies has been considered in the influence of air conditioning energy consumption,besides,the combination between passive HVAC technology and natural lighting hasn't been formed.The air conditioning and lighting system dependence degree which interior architecture environment has impact on is the theoretical guidance in this paper.Moreover,this paper emphatically analyzed the effect of comprehensive energy consumption of HVAC and lighting,which passive energy saving technologies including the WWR and the south to the level of external shade had impact on in hot summer and cold winter areas.Firstly,in this paper,the air conditioning and lighting system dependence degree which interior architecture environment has impact on was proposed.It can depict and optimize the relationship between the air conditioning and lighting system and interior architecture environment.In addition,it could guide the energy consumption analysis of HVAC and lighting.In this article,the evaluation system of “dependence degree” was built,the fundamental influence factor weight was analyzed in analytic hierarchy process.The results showed that the WWR and the sun-shading measures not only had great influence on the weight of “dependence degree”,but also they changed the indoor heat environment load and the indoor light environment load,respectively.Secondly,this paper choose three city analysis of typical large span in the hot summer and cold winter area that is Hefei,Shanghai,Chongqing to research.Building models were established using Energyplus software,respectively analyze the building heating energy consumption,refrigeration energy consumption,air conditioning energy consumption and,lighting energy consumption and comprehensive energy consumption in the window wall ratio variation of 0.1~0.7 interval.Through the comparison between the city energy consumption analysis,the window wall ratio increases,the linear of air conditioning energy consumption increases,lighting energy consumption curve decreased,basic trend of comprehensive energy consumption decreased first and then increased.Found lighting energy consumption of Hefei and Shanghai than Chongqingarea befor to reach saturation.Summarized and analysis to meet the indoor environment of office building in hot summer and cold winter area under the premise of building air conditioning and lighting energy consumption at the window wall ratio range,namely the indoor environment of air conditioning and lighting system "dependency" minimum interval.Finally,the influence of the horizontal shading coefficient on the comprehensive energy consumption of buildings is studied.The change trend of air conditioning energy consumption is obtained when the sun shading coefficient is constant.In the course of the study,the problem of "jump" in the simulation of lighting energy consumption is solved.Through the comparative analysis of the energy consumption between cities,it is found that when the external pressure coefficient increases,the energy consumption of the building air conditioning decreases first and then increases,the lighting energy consumption curve increases,the overall energy consumption decreases first and then increases,and finally,the basic trend of change.Summary and analysis to meet the indoor environment in hot summer and cold winter conditions,the minimum interval coefficient to pick the comprehensive energy consumption of building air conditioning and lighting,indoor environment of air conditioning and lighting system of the "dependency" minimum interval.