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How much steam will a 75- HP mechanical drive turbine needed per hour if the steam supplied at 165 psig sat and exhaust at

How much steam will a 75- HP mechanical drive turbine needed per hour if the steam supplied at 165 psig sat and exhaust at 5 psig considering it is single stage rotating at 1800rpm with 23% efficiency? Note from the table: h = 1198 BTU lb h = 1035 BTU, 5 prig. lb A. 68 lbs/hr C. 3240 lbs hr lbs B. 5100- D. 4350- -, 165 psig saturated hr lbs

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