Question: QUESTION 4- 12 MARKS om 150 mm B VB As shown in the accompanying figure, air flows into the gas heater at a steady rate.

QUESTION 4- 12 MARKS om 150 mm B VB As shown in the accompanying figure, air flows into the gas heater at a

QUESTION 4- 12 MARKS om 150 mm B VB As shown in the accompanying figure, air flows into the gas heater at a steady rate. When it enters at position A, the velocity is 15 m/s, pressure is 17.2 psi-g, and temperature is 20 C. When it exits at position B, the pressure is 7.0 psi-g and temperature is 75 C. 0000 100 mm 15 m/s A a) What is the corresponding absolute pressure for the entering stream in Pa units? (2 marks) b) Write the most general form of the mass balance equation for ANY control volume with multiple mass flow rate inlets and outlets. (2 marks) c) Given the information in the problem statement, simplify the equation from part b) for a control volume that includes just the region of pipe within the heater. (2 marks) d) Determine the velocity of the heated air stream that exits at position B. (6 marks)

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