【Daily Question】Utilities - HVAC - 20190213
Thread Content
Which of the following statements related to the average temperature difference is incorrect? () A. The temperature of the heat transfer medium varies along the heated surface; therefore, the temperature differences are not equal at different locations. In heat transfer calculations, it is necessary to determine the average temperature difference. B. The average temperature difference is related to the relative flow direction of the heat transfer medium. C. The average temperature difference is determined by the inlet and outlet temperatures of the heat transfer medium. D. The average temperature difference is determined by the temperature difference between the inlet and outlet of the heat transfer medium. Answer: C
C. The average temperature difference is determined by the inlet and outlet temperatures of the heat transfer medium