问题
单项选择题
用ε-NUT法进行换热计算时，如果比热容量比Cmin/Cmax=0，且NTU均相同，则逆流效能( )顺流效能。
A．大于
B．等于
C．小于
D．远远大于
答案
参考答案：B
解析： 当Cmin/Cmax=0，无论是逆流还是顺流，ε=1-e-NTU，所以效能相等。
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用ε-NUT法进行换热计算时，如果比热容量比Cmin/Cmax=0，且NTU均相同，则逆流效能( )顺流效能。
A．大于
B．等于
C．小于
D．远远大于
参考答案：B
解析： 当Cmin/Cmax=0，无论是逆流还是顺流，ε=1-e-NTU，所以效能相等。
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