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Unformatted text preview: for an extended period of time. The heat exchanger surface area of the exchanger is 5 m 2 , and the design value of the overall convection coefficient is 38 W/m 2 ºC. During a test run, engine oil flowing at 0.1 kg/s is cooled from 110ºC to 66ºC by water supplied at a temperature of 25ºC and a flow rate of 0.2 kg/s. Determine whether fouling has occurred during the service period. If so, calculate the fouling factor, R ” f (m 2 K/W)....
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- Fall '09