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yecko
Gold Member
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- Homework Statement
- How to get the enthalpy of point 3?
(see pic attached)
- Relevant Equations
- (Cengel 8th ed) table A12 & A13 & A14
How to get h3 = 111.37?
According to table a-13, sat temp@1.2MPa = 46.29oC, and T3 is lower than that. So the refrigerant should be totally in liquid state, and heat capacity should be used instead. However, from textbook, no heat capacity is given from table.
If graph of A14 is used, at 1.2MPa and T=42oC, enthalpy should be lying somewhere between 250-300kJ/kg instead.
However, from solution, 111.37 is found, how to obtain this answer?
Thank you.
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