Question 31 from the Morning Section on Professional Knowledge in 2013
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31. To improve the efficiency of a heat exchanger, measures must be taken to enhance heat transfer. Which of the following statements is incorrect? A. Increase the heat transfer coefficient K. B. Reduce the formation of fouling. C. Increase the flow velocity of the fluid on the side with a higher convective heat transfer coefficient. D. Increase the flow velocity of the fluid on the side with a lower convective heat transfer coefficient. S!
It should be C; increasing the flow rate on the side with a higher heat transfer coefficient is incorrect. The side with a lower heat transfer coefficient is the one where the flow rate is controlled. I don’t understand why D was chosen – please provide an explanation