Saturated steam at a gauge pressure of 1.00 bar is to be used to heat a stream of ethane. The ethane enters a heat exchanger at 16C and 1.5 bar gauge pressure at a rate of 995 m3/min and is heated at constant pressure to 93C. The steam condenses and leaves the exchanger as a liquid at 34.0 C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16C and 1073 kJ/kg at 93C. You may take the compressibility factor for ethane to be 0.970 at the inlet conditions. Physical Property Tables Power Correct. How much power must be transferred to the ethane to heat it from 16C to 93C? 7077 kW At what rate must steam be supplied to the heat exchanger if all the energy transferred from the steam goes to heat the ethane? i 7620 m3/s Hint Assistance Used 1. Look up the enthalpies of steam for the inlet condition and of water for the outlet condition. Calculate the change in enthalpy. 2. Calculate the mass flow rate of steam required to supply7085.1kW. 2. Look up the specific volume of steam for the inlet condition. 3. Calculate the volume of steam corresponding to the required mass flow rate