Research On Multi-energy Complementary Heating Balance Scheme For Energy-saving Residential Buildings In Rural Pastoral Area Of Frigid Region B In Inner Mongolia Based On DeST Energy Consumption Quantization Technology

Under the guidance of the Party's rural revitalization strategy,the economy and society of Inner Mongolia's rural pastoral areas have developed rapidly,and the living environment of farmers and herdsmen has been constantly improved.The General Office of the Ministry of Agriculture and Rural Affairs issued the Circular on The Key Points for Green Development of Agriculture and Rural Areas in 2020 to continuously promote the improvement of rural living environment.The income level of farmers and herdsmen has been steadily raised,and the requirements for indoor thermal comfort have been constantly improved.However,a large number of researches on the rural pastoral areas in Severe cold Zone B of Inner Mongolia have found that there are a large number of permanent residents in the rural pastoral areas.The rural pastoral areas basically rely on traditional experience to build their own houses,which lack professional knowledge guidance.The plane space division and peripheral structure design are not reasonable,the thermal comfort is low,and the heating energy consumption is high.Heating facilities for Kang,stoves,fuel coal,firewood,sheep dung and so on.Extensive combustion and conventional heating make thermal efficiency low and pollution high.With the implementation of energy conservation,emission reduction and environmental protection strategies,energy and environmental issues have been paid more and more attention.The state and society have gradually strengthened guidance on the use of clean energy,developed new and efficient equipment,and provided increasingly refined and improved policy support.Severe cold B area of Inner Mongolia is vast,and winter is severe and long.However,this region is rich in solar energy resources and makes full use of passive solar energy technology to design new energy-saving houses that meet the residential needs of farmers and herdsmen and meet the"Design Standards for Energy-saving Residential Buildings in Rural Pastoral Areas",which is in line with the trend of social development.In this paper,the two-bedroom and three-bedroom houses in a village in Xilinhot,which are located in the middle of the cold Zone B,are selected as the representatives.By using DeST simulation,the results show that compared with the current residential heating season,the heat consumption index of the new energy-saving residence decreases from 39.21W/m~2 and29.92W/m~2 to 7.27W/m~2 and 5.79W/m~2,respectively.The energy saving rate is about 81%,and the energy saving effect is obvious.In heating season,the natural room temperature of main rooms increased by more than 13?by hour.The temperature of the inner surface of the outer wall increased by more than 4.5?,and the difference between the indoor temperature and the outer wall decreased to about 1.2?.The cold radiation of the outer wall was greatly reduced,and the thermal comfort was significantly improved.In order to achieve the new renewable clean energy efficient utilization,balance in energy efficient residential heating,is calculated for each residential fire resistance heat release 16.14 W/m~2 and 20.85 W/m~2,and further calculation of residential in outdoor thermal calculation temperature of the heating season were higher than 17.93?and 19.53?period,follow only depend on the heat dissipating capacity can meet the demand of indoor thermal design of the number of days of the heating season were 80.75%and 88.77%respectively.According to residential thermal inertia index structure D value,new energy-saving residence meet the coldest days(combining the annual minimum daily average temperature is 29.5?)outdoor heating indoor design temperature 15?when heating load of each part number,including the amount of solar energy heating,life to produce heat and fire resistance heat,ultimately balanced heating quantity q value,calculate two kinds of model were 20.47W/m~2 and 20.90 W/m~2,it is concluded that the balance amount of heating room.Relying on the local rich natural resources,the design of appropriate wind power or photovoltaic supplementary heating balance scheme.Select appropriate cooling terminals and arrange them in each room.Realize the heating balance scheme of"solar energy+biomass energy+domestic thermal energy+wind power or photoelectric",and reach the goal of"passive solar house+improved heated Kang+wind power/photoelectric heating balance system",which is a new energy-saving house with high comfort.