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建筑内部热质体性能对室内热环境起着十分重要的作用。本文通过建立被动式太阳房“双板”简化模型,以提高室内热舒适度为目标,从反问题的思路研究建筑内部热质体非线性理想比热容。提出了多尺度十段法来近似描述热质体的非线性比热容特性,计算了北京冬季一月份工况下,不同导热系数的内部热质体非线性理想比热容特性。结果表明:该方法可有效求解建筑内部热质体的非线性理想比热容特性;理想非线性比热容特性近似于δ函数;在一定范围内导热系数增大对热质体优化后室内热舒适度影响不大,比热容集中点略微上移。
The thermal mass performance inside the building plays an important role in the indoor thermal environment. In this paper, through the establishment of a simplified model of passive solar house “double board ”, in order to improve the thermal comfort indoors, the non-linear ideal specific heat capacity of the building interior thermal mass is studied from the inverse problem. A multi-scale ten-segment method was proposed to approximate the nonlinear specific heat capacity of the thermal mass. The non-linear ideal specific heat capacity of the internal thermal mass with different thermal conductivities under winter conditions in January was calculated. The results show that this method can effectively solve the non-linear ideal specific heat capacity of building interior thermal mass. The ideal non-linear specific heat capacity approximates the delta function. When the thermal conductivity increases within a certain range, Large, specific heat concentration point slightly up.