砌法对混凝土空心砌块热工性能的影响
发布时间：2018-08-02 17:40
【摘要】：运用数值计算的方法模拟了24种不同孔洞结构的240mm×115mm×90mm(长×宽×高)粉煤灰小型空心砌块的耦合传热过程,得出单个空心砌块的当量导热系数值。模拟中考虑沿着砌块长度方向及宽度方向传热对当量导热系数的影响。结果表明:沿着传热垂直方向增加孔数减弱了砌块的保温隔热效果,沿着传热平行方向增加孔数增强了砌块的保温隔热性能。另外,还对三种砌法的砌筑单元结果进行了比较,选出了最优方案,此种砌法不仅减少了寻找最优孔型的工作量和时间,而且新型砌法的结果比以往方法找出的最优方案要为理想。
[Abstract]:The coupled heat transfer process of 240mm 脳 115mm 脳 90mm (length 脳 width 脳 high) fly ash hollow block with 24 different pore structures is simulated by numerical calculation, and the equivalent thermal conductivity of a single hollow block is obtained. The influence of heat transfer along the length and width of block on the equivalent thermal conductivity is considered in the simulation. The results show that increasing the number of holes along the vertical direction of heat transfer weakens the thermal insulation effect of the block, and increases the number of holes along the parallel direction of heat transfer to enhance the thermal insulation performance of the block. In addition, the results of the three masonry methods are compared, and the optimal scheme is selected. This method not only reduces the workload and time of finding the optimal hole, The result of the new method is more ideal than that of the previous method.
【作者单位】： 南京工业大学城市建设与安全工程学院;江苏科行环保科技有限公司;
【基金】：江苏省教育厅自然科学研究基金项目(10KJB56001)
【分类号】：TU522.34
[Abstract]:The coupled heat transfer process of 240mm 脳 115mm 脳 90mm (length 脳 width 脳 high) fly ash hollow block with 24 different pore structures is simulated by numerical calculation, and the equivalent thermal conductivity of a single hollow block is obtained. The influence of heat transfer along the length and width of block on the equivalent thermal conductivity is considered in the simulation. The results show that increasing the number of holes along the vertical direction of heat transfer weakens the thermal insulation effect of the block, and increases the number of holes along the parallel direction of heat transfer to enhance the thermal insulation performance of the block. In addition, the results of the three masonry methods are compared, and the optimal scheme is selected. This method not only reduces the workload and time of finding the optimal hole, The result of the new method is more ideal than that of the previous method.
【作者单位】： 南京工业大学城市建设与安全工程学院;江苏科行环保科技有限公司;
【基金】：江苏省教育厅自然科学研究基金项目(10KJB56001)
【分类号】：TU522.34
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