2) R-134a is the working fluid of a vapor-compression refrigeration cycle. Refrigerant enters the compressor as a saturated vapor at 200kPa, while it exits the condenser as a saturated liquid at 800kPa. Compressor has an isentropic efficiency of 82%. a) If the mass flow rate of R-134a is 0.1 kg/s and the environment temperature is 20°C, determine the coefficient of performance of the cycle and the exergy destruction rate of the compressor in kW. b) What would be the value of the coefficient of performance if the cycle was ideal?

2) R-134a is the working fluid of a vapor-compression refrigeration cycle. Refrigerant enters the compressor as a saturated vapor at 200kPa, while it exits the condenser as a saturated liquid at 800kPa. Compressor has an isentropic efficiency of 82%. a) If the mass flow rate of R-134a is 0.1 kg/s and the environment temperature is 20°C, determine the coefficient of performance of the cycle and the exergy destruction rate of the compressor in kW. b) What would be the value of the coefficient of performance if the cycle was ideal?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

can u explaine fast please
A Carnot vapor refrigeration cycle uses R-134a as the working fluid. The refrigerarit enters the condenser as saturated vapor at 28°C and leaves as saturated liquid. The evaporator operates at a temperature of -10°C. For every kg of refrigerant flow, calculate the work of compression, kJ
1. An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kPa and the evaporator at -12°C. Determine this system's COP and the amount of power required to service a 150 kW cooling load. Answers: 4.87, 30.8 kW
Consider a heat pump that operates on the vapor compression refrigeration cycle with R-134a as the working fluid. The refrigerant enters the compressor as saturated vapor at 180 kPa, and exits at 900 kPa and 40°C, and leaves the condenser as saturated liquid at 900 kPa. The coefficient of performance of this heat pump is a. 5.51 b. 4.58 c. 3.61 d. 4.06 e. 2.87
can u explaine fast please
Condenser a steam power plant that operates on a simple ideal ranking cycle and has a net power output of 22MW. Steam enters the turbine at 7Mpa and 450.05°C and is cooled in the condenser at a pressure of 10kpa by running cooling water from a lake through the tubes of the condenser at rate of 1750 kg/s. Determine the mess flow rates of steam through the steam turbine assuming that the cp of superheated steam is 2.9593kJ/kg.K.
can u explaine fast please