Question 49, afternoon of the first day of the 2014 Chemistry Exam
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When analyzing the heat exchange process using the pinch point technique, if heat flows from above the pinch point through it to below the pinch point, which of the following statements are incorrect regarding the external utility requirements? (A) The heating load increases, while the cooling load decreases. (B) The cooling load increases, while the heating load decreases. (C) Both the heating load and the cooling load increase. (D) Both the heating load and the cooling load decrease. Which options should be selected?
Above the pinch point is the material stream that needs to be heated; only a heater can be used for heating it； Below the clip point is the material stream that needs to be cooled, and only a cooler can be used for cooling it. So option C is correct; choose ABD
Should it be ABD? Is there a better explanation?