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提出1种新型外墙排风隔热机制,以及该墙体的四种结构:基本型、内衬型、夹层通风型和外保温型。以基本型结构为例,阐明隔热机制;通过二维稳态传热数值模型,计算当量热阻,并与普通非保温墙和外保温墙进行比较,结果表明排风隔热墙的隔热性能优越,具有潜在的节能应用价值。
A new type of external wall ventilation mechanism is proposed, as well as the four structures of the wall: basic type, inner lining type, interlayer ventilation type and external thermal insulation type. Taking the basic structure as an example, the mechanism of heat insulation is expounded. The two-dimensional steady-state heat transfer numerical model is used to calculate the equivalent thermal resistance and compared with the common non-thermal wall and external thermal wall. The results show that the thermal insulation of exhaust wall Superior performance, with potential energy saving application value.