Assuming there is a minimal cooling of the condensate

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An engineer wishes to heat air for a shopping mall with 100,000 kJ of energy per hour. One option is to use steam (available at 100 deg c and 1 atm pressure with a specific enthalpy of 48.168 kJ/mole. When the steam gives up its energy to heat the air, it condenses from a vapour to a liquid. The liquid consate now has a temperature of 100 deg c, a pressure of 1 atm and a much lower specific enthalpy of 7.533 kJ/mol

1. Assuming there is a minimal cooling of the condensate after condesing, how many kilograms of steam per hour must be used to heat the air

2. What is the heating power required in kW.

Reference no: EM13643423

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