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Solution Library
Calculation of Heat Entering and Exiting from Two Mixture of Gases
Question
500 kg/hour of a mixture containing 10wt% methane and 90wt% ethane at 27°C and 1 bar is fed to a mixer. Another mixture, containing 50wt% methane and 50wt% ethane at 77°C at 1 bar, is also fed to the mixer at a flow rate of 300 kg/hr. The mixer operates at 1 bar and 227°C. Calculate the heat entering/leaving the mixer in kJ/hr. Use the sign of Q and determine if the heat is being transferred FROM or TO the mixer. The specific enthalpies of methane and ethane are given in the table below.
Temperature (°C) Methane Specific Enthalpy (kJ/kg) Ethane Specific Enthalpy (kJ/kg)
27 1199.8 1068.3
77 1314.8 1161.5
227 1708.9 1504.6
Summary
The question belongs to Chemical Engineering. The question here is about calculation of heat entering and leaving into mixtures of ethane and methane at different temperatures, mixtures and pressure. The solution has clear calculations.
Note: The solution is in handwritten form.
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