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1. |
In a double pipe heat exchanger, in the inner side fluid enters at 20℃ and leaves at 45℃. The annulus has steam condensing at 1atm. What is the value of LMTD? |
A. | 39℃ |
B. | 66.7℃ |
C. | 70℃ |
D. | 40.5℃ |
Answer» C. 70℃ | |