轻钢龙骨腹板开孔参数对复合墙体传热的影响

Analysis on perforated parameters for heat transfer of light steel-framed composite wall

对C型腹板开孔轻钢龙骨复合墙体的传热性能进行了数值模拟,分析了腹板开孔参数(开孔排数、开孔长度、宽度、孔的横向间距和纵向间距)对墙体传热的影响和热桥问题.结果表明,腹板开孔后能有效降低墙体传热系数和热桥效应,合适的开孔参数为:开孔排数4-6排、孔长70-80mm、孔宽2-3mm、孔的横向间距6-9mm、纵向间距20-30mm.

Thermal performance of the slotted light steel-framed composite wall is simulated in this paper. The influence of perforated parameters to heat transfer is studied. The results show that the light steel-framed with web perforation can decrease the heat transfer coefficient of the composite wall The parameters of this steel structure is as follows ： 4 - 6 rows of slots are recommended, the length of slots is 70 -80 mm, the width of slots 2 -3 mm, the distance between them in the transverse direction 6 -9 mm and in the longitudinal direction is 20 - 30 mm.