Low-power Design Strategy Of Cold Region Commercial Building Based On Comfortable Thermal Environment

With the development of the construction industry tends to matureand,thermal comfort of architectural space has been growing attention.However,the common way to improve the building thermal environment is using machinery to change the environment indoors.As people become more concerned about the comfort of the indoor thermal environment,the building energy consumption is increasing.However,even though putting more energy,there ' s no effective access to a comfortable indoor thermal environment.In north of China,winter heating makes temperature indoor overheating;in the south,as people over-reliance on air conditioning in summer,many of them suffering from air conditioning disease,thermal environment indoor are not cozy.The reason is that people do not understand the theory of thermal environmental science,as well as the architects ignore to create a comfortable thermal environment in the early design.Commercial buildings are huge carrier of energy consumption,but there are numerous problems in their indoor thermal environment comfortable.In this paper,saving room for the study of commercial buildings in the cold area,we measured the buildings' temperature and humidity and do some subjective questionnaire.Then summarizing data which relates to the thermal environment and low-power design issues.And proposing commercial building low-power design strategies which aim to improve thermal comfort.We also test the feasibility of the policy via some softwares.This paper consists of four parts.The first part contains on the research background and significance,concepts,and overall contents and framework.In the second part,we studied on the basic theory of thermal comfort,researched several large commercial buildings,analysed the characteristics and problems of existing commercial buildings,and explained the dialectical relationship between the thermal comfort and energy consumption.And then we looked for the key nodes for the after discussion.In the third part of the paper,we got three typical buildings' temperature and humidity data both in subjective questionnaires and measurement in order to identify its characteristics and changing law.The fourth part summarizes low-power design aiming to improve thermal comfort.We discussed them from the overall to local,and building exterior,interior and envelope are three parts we needed to be talked about.We verified feasibility by many softwares such as ecotect,designbuilder,airpakother and so on.In the context of the energy crisis,it is the inevitable choice for the future commercial buildings to strengthen the study of thermal environment comfort and design buildings thermal comfort angle guide to building low-power design.In the context of the energy crisis,it is the inevitable choice for the future commercial buildings to strengthen the study of thermal environment comfort and design buildings thermal comfort angle guide to building low-power design.