FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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Define the Reversible Adiabatic Expansion
The temperature limits of a CO2 refrigerating plants are 25°C and -10°C. If the vapour is dry at the end of compression, calculate COP,
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Temp Liquid
Liquid entropy Vapour entropy
Vapour
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Latent
in °C
enthalpy
enthalpy
Sf in kJ/kg K
Sg in kJ/kg K
h; in kJ/kg hig in kJ/kg h, in kJ/kg
25
81.3
121.4
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- Give the Formula for Efficiency, Work Flow rate and Qa and also give the Energy balance at an open heater.arrow_forwardusing the values given in the two evaporator refrigeration systema) Draw the T-s diagram. (evaporator output saturated steam, condenser output saturated liquid, compressor isentropic efficiency is 0.8)b) Find the coefficient of performance (COP).arrow_forwardWhat would be the isentropic efficiency of a turbine if the working fluid is steam and the inlet conditions are as follow T = 400 C and P = 3000 kPa. The fluid leaves the turbine at 70 kPa and 280 C. The output power of turbine is equal to 1500000 W. Select one: a. 0.86 b. 0.2 c. 0.42 d. 0.74arrow_forward
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