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Neatly sketch the complete heat-pump cycle from Question 1 on a P-h diagram, showing clearly all six processes (1) - (2) - (3

P-n diagram for R134a refrigerant 4 MPa з MPа. 61000 80C 0.9 2MPa 60c 1.0 40°C 1 MPa Pressure 1.1 20.C 500 kPa 0°C 1.2 200 kP

The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to su

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Answer #1

To find the enthalpy at all the six points, we must use thermodynamic properties table of R134a. I have used the one provided in appendix of Thermodynamics: An engineering approach. You can refer to them. Please refer to attached images for solution of given problem.

Do note that since I didn't have a printed Ph chart, I have neatly drawn a scaled version. Please upvote this solution, if you find it to be useful. Good luck!!

P2 * Data provided - Refrigerant to be used: Ribu a * The refrigerant enters the compressor at P = 320kPa and T220 6 * Usinghoa 25% kk |TẬP (151.76 -hy) = (267-66-251.86) hy= 135.98 1LJ/kg. since excpansion is icen thalpic an natore, 135.98 Liling P

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