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本资料是1986年4月美国ASHRAE手册代表团在中国制冷学会和商业部设计院组织的技术座谈会上,由该手册负荷计算的编者乔奇·史密斯先生提供的。编者将1985年该手册基础篇第29章公式(10)[见附录]简化成图表计算。在计算冷藏间门口渗透冷量损失时,首先要确定冷藏间内空气的温湿度状况及冷藏间外空气的温湿度状况,然后由图1查得冷藏门每平方米的渗透显热值,这个值要经过一系列的修正,例如高度修正,门口空气流动的修正,门开启时间的修正等。再由公式(1)进行计算得到结果值。图1中使用的门的高度是2.5米高,如不符则要按表1修正。常开的门口空
This information is provided by the April 1986 ASHRAE manual delegation at the technical symposium organized by the China Refrigeration Institute and the Design Institute of the Ministry of Commerce under the charge of the manual, Mr. Georgi Smith. The editor simplified Equation (10) [see Appendices] Chapter 29, Chapter 29, of this manual in the simplified form. In the calculation of cold room at the entrance of the loss of cooling capacity, we must first determine the temperature and humidity in the cold room and the cold outside the room temperature and humidity conditions, and then check by Figure 1 refrigerated door per square meter of sensible heat value, this Value through a series of amendments, such as height correction, door air flow correction, door opening time correction. Then by the formula (1) to calculate the result value. The height of the door used in Figure 1 is 2.5 meters high. If not, it is to be corrected according to Table 1. Normally open the door empty