Research On Indoor Thermal Environment Of Rural House In The Northeast Severe Cold Area

This article gives a more detailed overview on the winter indoor thermalenvironment for rural buildings of the severe cold area of China. It covers heatingenergy consumption state, winter indoor thermal environment testing, heating methodsand envelope structure and the relevant aspects of the situation of rural residential areaof cold winter indoor thermal environment calculation parameters of the research. Theconclusions of the research are:1. in rural houses of northern China, the basic structureof the winter heating energy shift to commercial energy, biomass energy only covered asmall proportion.2. From the field testing data of indoor thermal environmental, thequality of indoor thermal environment China’s rural house in winter in cold regions isgenerally poor. Possible causes are that:1.winter heating mode is too simple, only Kangor soil heating as the main way of heating,2. thermal performance of building envelopeis really poor, which means that exterior materials mainly brick wall of water was490or370, most of them without insulation layer, outside the window are single layerwooden window frames, whose sealing are almost ineffective.This article uses a site survey research method to analyze the relationshipbetween the cold winter indoor temperature rural residential calculation parameters andhuman thermal comfort, this research contents include indoor and outdoor physicalenvironment parameters field test and subjective questionnaires, and it uses operativetemperature to measure the cold winter rural indoor thermal comfort. At last it gives thesummaries of the cold regions of rural residential profile, personnel background, themain way of heating and indoor thermal environment, subjective feeling voting valueneutral temperature, temperature range and thermal comfort expectations and the effectsof the different factors are all given.An example of a typical rural building of northern China was given for the indoortest during the heating period of winter, whose temperature and humid data was givenby time sequence. Then it gives the analysis of indoor thermal environment in differentrooms, indoor air temperature distribution of the rooms which have heating, energyconsumption and human subjective thermal comfort conditions.Then a simulation with the software TRNSYS based on the example of the typicalrural building as a standard was given to make a contract, which gives analysis of indoor thermal environment in different rooms of different room heating indoor airtemperature distribution, energy consumption and human subjective thermal comfortconditions.For the target of improved to50%energy saving, a solution was given through theoptimization of the building envelope technologies, which refers to the "rural residentialbuilding energy efficiency design standards" GB/T50824-2013specified envelopethermal performance parameter as limits to a typical residential building transformation,and based on the indoor temperature range of this article.