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Consider a rectangular fin that is used to cool a motorcycle engine. The fin is 0.15 m long and at a temperature of 250°C, while the motorcycle is moving at 80 km/h in air at 27°C. The air is in parallel flow over both surfaces of the fin, and turbulent flow conditions may be assumed to exist throughout.
(a) What is the rate of heat removal per unit width of the fin?
(b) Generate a plot of the heat removal rate per unit width of the fin for motorcycle speeds ranging from 10 to 100 km/h.
A study undertaken by the materials management department found that over the past year the work center was available for work 12,000 hours, work was actually being done for 10,000 hours, and work was performed 11,480 standard hours. Calculate the..
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