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Refer to Q4 and estimate the maximum refrigeration load imposed by this freezing installation assuming the fans but not their motors are in the tunnel.(a) 50.5 tons of refrigeration(b) 40.5 tons of refrigeration(c) 44.5 tons of refrigeration(d) 55.5 tons of refrigeration |
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Answer» The correct choice is (c) 44.5 tons of refrigeration For explanation I would say: With motors outside, the motor inefficiency = (1 – 0.86) does not impose a load on the refrigeration Total heat load = (104 + [0.86 x 53.7] + 6.3) = 156 kW = 44.5 tons of refrigeration. |
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