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A two-shell-eight-tube-pass heat exchanger is used as an economizer by heating a 1000 1/min10C stream of water with another 1000l/min stream of 75C water. If

A two-shell-eight-tube-pass heat exchanger is used as an economizer by heating a 1000 1/min10C stream of water with another 1000l/min stream of 75C water. If the NTU value for the economizer is 0.45, what are the outlet temperatures of the two streams of water?

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