Refrigerant 22 is the working fluid in a Carnot vapor refrigeration cycle for which the evaporator temperature is -30°C. Saturated vapor enters the condenser at 36°C, and saturated liquid exits at the same temperature. The mass flow rate of refrigerant is 10 kg/min. Determine the net power input to the cycle, in kW, A) 5.1 B 4.1 3.1 6.1

Refrigerant 22 is the working fluid in a Carnot vapor refrigeration cycle for which the evaporator temperature is -30°C. Saturated vapor enters the condenser at 36°C, and saturated liquid exits at the same temperature. The mass flow rate of refrigerant is 10 kg/min. Determine the net power input to the cycle, in kW, A) 5.1 B 4.1 3.1 6.1

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

a) Heat leaks from the air in a kitchen through the walls of a refrigerator into the refrigerated cold space at a rate of 0.3 kW. The refrigerator operates in an ideal vapor compression refrigeration cycle between 1.2 bar and 9 bar. It uses refrigerant R-134a as the working fluid. Determine: i) the mass flow rate of the refrigerant. ii) the compressor power.
Please help me I'm struggling with this thermodynamics problem.
Ideal vapor-compression refrigeration cycle functions at steady state. Working fluid is Refrigerant 134a. Saturated vapor enters compressor at 1.70 bar. Saturated liquid leaves condenser at 7 bar. Refrigerant has mass flow rate = 7.9 kg/min DETERMINE: 1. What is power of compressor in Watt? 2. What is coefficient of performance? 3. What is refrigerating capacity in tons?
Que: The temperature in the evaporator of a home air conditioner using R134A as the refrigerant is 261 K, and the temperature in the condenser is 325 K. The refrigerant leaves the evaporator at 12 K above saturation temperature and its mass flow rate is 22 kg/h. When a compressor with 80% efficiency is used; a) The power of the compressor (kW), b) the cooling capacity of the air conditioner (kW), and c) Find the coefficient of performance. 3. 325 4, 261 Qu 2.
Refrigerant 22 is the working fluid in a Carnot vapor refrigeration cycle for which the evaporator temperature is -30°C. Saturated vapor enters the condenser at 36°C, and saturated liquid exits at the same temperature. The mass flow rate of refrigerant is 10 kg/min. Determine the power input to the compressor, in kW, (A) 6.72 (B) 5.35 7.76 3.51 D
An ammonia-water absorption refrigeration cycle is used to keep a space at -5 C when the ambient temperature is 20 C. Pure ammonia enters the condenser at 20 bar and 60 C at a rate of 0.02 kg/s. Ammonia leaves the condenser as a saturated liquid and is expanded to 2 bar. Ammonia leaves the evaporator as a saturated vapor. Heat is supplied to the generator by geothermal liquid water that enters at 100 C at a rate of 0.25 kg/s and leaves at 70 C. Determine (a) the cooling capacity (in TR) and (b) COP of the system. The enthalpies of ammonia at various states of the system are: condenser inlet h2 = 1510 kJ/kg, evaporator inlet h4 = 418 kJ/kg, evaporator exit h1 = 1420 kJ/kg. Take the specific heat of geothermal water to be 4.18 kJ/kg-K
Below is an ideal cascade refrigeration system with High P = 800 kPa, Intermediate P = 360 kPa, and Low P = 140 kPa.If the lower cycle transfers 69kW of energy to the upper cycle, What is the mass flow rate of R-134A (in kg/s) in the upper cycle? a.0.4014 b.0.3892 c.0.3554 d.0.4357
Refrigerant 22 is the working fluid in a Carnot vapor refrigeration cycle for which the evaporator temperature is -30°C. Saturated vapor enters the condenser at 36°C, and saturated liquid exits at the same temperature. The mass flow rate of refrigerant is 10 kg/min. Determine the power developed by the turbine, in kW, (A) 1.25 B 0.45 0.93 1.69
Data for steady-state operation of a vapor-compression refrigeration cycle with Refrigerant 134a as theworking fluid are given in the table below. State 1 is at the compressor inlet. The cooling capacity (i.e therate at which heat is removed from the cooled space) is 4.6 tons. 1 ton of refrigeration is equivalent to211 kJ/min. Ignoring heat transfer between the compressor and its surroundings, sketch the ?-? diagramof the cycle and determinea) the mass flow rate of the refrigerant, in kg/min.b) the isentropic compressor efficiency.c) the coefficient of performance.State ? (bar) ? (°C) ℎ (kJ/kg) ? (kJ/kg-K)
A vapor compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated vapor enters the compressor at 2 bar, and saturated liquid exist the condenser at 8 bar. The isentropic compresser efficiency is 80%. The mass flow rate of refrigerant is 7 kg/min. Sketch the process on a T-s diagram and determine; i. the compressor power, in kW ii. the refrigeration capacity, in tons iii. the coefficient of performance
A Carnot Refrigeration Cycle operates between temperature limit of – 5oC and 30oC. The power consumed is 4 kW and the heat absorbed is 30 kJ/kg. Determine the (a) COP, (b) refrigerant flow rate.
Refrigerant 22 is the working fluid in a Carnot vapor refrigeration cycle for which the evaporator temperature is -30°C. Saturated vapor enters the condenser at 36°C, and saturated liquid exits at the same temperature. The mass flow rate of refrigerant is 10 kg/min. Determine the quality of refrigerant at inlet of compressor, (A) 0.9430 B 0.6931 C 0.7931 D 0.8931