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在设计热工等设备的保温隔热层时,离不开对保温材料的选择。其中一项,就是对保温材料进行经济性的比较。 为了对保温材料进行经济性比较,推导比较公式,我们确定以下的比较基准: 1.比较的保温材料所起到的保温隔热作用是相同的。即通过材料A和材料B的热量相同,均为Q。 2.比较的保温材料,在同一给定面积条件下比较,即均为A。 3.比较的保温材料,处在同一温度区间内,即它们的冷热面温度一样。这一点对变导
In the design of thermal insulation equipment such as equipment, can not do without the choice of insulation materials. One of these is the economical comparison of insulation materials. In order to economically compare insulation materials, derive the comparison formula, we determine the following benchmark: 1. The thermal insulation materials compared to play the same role. That is, the same amount of heat through material A and material B, both Q. 2. Comparison of insulation materials, in the same given area conditions, that is, 3. Compare insulation materials, in the same temperature range, that is, their hot and cold temperature the same. This is the guide