STUDY ON THE BEST INSULATION THICKNESS OF BUILDING ENVELOPES
This paper selects four regions represented by Lhasa,Xi'an,Beijing and Harbin for the research on the thermal partition of buildings in the northern region and the distribution of solar energy in various regions.Determine the window form suitable for each area and the number of air changes,ensure that the thickness of the outer insulation layer of the building is changed on the basis of consistent wall materials,and obtain the curve of the building energy consumption value with the thickness of the outer insulation layer of the building.Calculate the lower bound of the insulation threshold of each zone by standardizing the defined thermal index values of each zone,and convert the energy consumption value reduced by building insulation into energy consumption reduction income through the standard coal,and invest in building insulation materials.The annual value of the cost is compared to the economic area.Finally,the optimal insulation thickness threshold is obtained for each region's economy.
building insulationenergy consumption reduction incomeoptimal threshold
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