In a CO2 refrigerating plant, the specific enthalpy of the refrigerant as it leaves in the condenser is 135 kJ/kg and as it leaves the evaporator it is 320 kJ/kg. If the mass flow of the refrigerant is 5 kg/min, calculate the refrigerating effect per hour.

Q: A refrigerant system with a capacity of 15 tons of refrigeration operates at 150 KPA evaporator…

A:

Q: Determine the degrees of subcooling at the exit of the condenser of a 2-ton air- conditioner system.…

A: Given2ton air conditionerR-134a flow rate  m=0.05 kg/s  Evaporator PressurePe=  200 kPa  Condenser…

Q: Determine the C.O.P. of a R-134a compression refrigeration cycle. The evaporation temperature is …

A: Given Data The cooled temperature is: Tc=-10°C=263 K The hot temperature is: Th=40°C=313 K The COP…

Q: 18. How many tons of refrigeration effect can be obtained from a window air conditioner rated at…

A: Ton of refrigeration(TR) is the unit for heat removal Heat removal = Q = 18000 Btu/hr Find Ton of…

Q: Catalogue data for R-32 compressor with a displacement of 80 L/s show the capacity to be 8 tons when…

A: Refrigerant=R32Compressor displacement, V˙d=80 L/s=0.080 m3/sRefrigeration capacity, Q˙e=8…

Q: A vapor compression refrigeration system has a condensing pressure of 15 bars. The R-12 is…

A:

Q: Determine the C.O.P of a simple saturated ammonia (R-717) compression refrigeration cycle. The…

A: Given, evaporation temperature, Tc=-20°C=-20+273K=293K condenser temperature, Th=40°C=40+273=313K

Q: . Explain how the expansion valve in the refrigeration system works?

A: Dear student,                    According to the guidelines I am allowed to answer only one problem…

Q: HAT IS THE BASIC DIFFERENCE BETWEEN A REFRIGERATION SYSTEM APPLIED IN AN AIR CONDITIONING AND IN THE…

A: Refrigeration is the process of lowering and/or maintaining a space, material, or system's…

Q: determine the COP of the simple vapor compression refrigeration cycle R-134a. the evaporation…

A: Given     Tmin = 253 K     Tmax = 303 K

Q: Determine the degrees of subcooling at the exit of the condenser of a 2-ton air- conditioner system.…

A: 2 ton = 7.03371 kW mass flow rate of refrigerant = 0.05 kg/s required enhalpy drop = 7.03371/0.05 =…

Q: Discuss the advantages of using multi-stage refrigeration cycle for large industrial applications.

A: When two or more compressor numbers are connected in a series with an intercooler in the middle of…

Q: vapor compression refrigeration system operates on the cycle shown below (from Smith, Van Ness, and…

A:

Q: In a vapour compression refrigeration cycle, the refrigerant enters the compressor in saturated…

A:

Q: How to express the coefficient of performance of a standard refrigerator in terms of the enthalpies…

A: The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air…

Q: Determine the power consumption of a domestic refrigerator

A: Given: Refrigeration capacity  (RC) = 1/8 TR Ambient temperature (TH) = 40oC= 313 K Require…

Q: Heat accepted by evaporator is 4500 W. Determine the heat rejected by condenser if COP=5?   a) 5400…

A:

Q: What is the function of a refrigeration unit in condensing systems?

A: The refrigeration unit is given

Q: Why must a room air conditioner be

A:

Q: An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid…

A:

Q: kg/sec of steam enters the condenser at 0.12 mpa and 10% mosture. what should be the mass of the…

A: Given:ms=9 Kg/secP=0.12 MPax=0.10Ti=32°CTf=42°C

Q: A refrigeration system with a capacity of 10 tons of refrigeration, operates at 210 kPa in the…

A:

Q: A Single Stage Vapor Compression (SSVC) refrigeration system has a cooling capacity of 7.5 tons. The…

A: Fume pressure refrigeration frameworks (VCRS) are the most generally involved sort of refrigeration…

Q: How does the compression process of an ideal vapor compression refrigeration cycle differs from…

A: In compression process of refrigeration cycle, the vapor refrigerants pressure increases to…

Q: Consider a two-stage compression refrigeration system operating between the pressure limits of 0.8…

A: Consider the T-s diagram shown below for the given refrigeration cycle.

Q: A real heat pump has .02 kg/s of refrigerant-134a flowing through and consumes 3 kW of power. The…

A: Given:mass flow rate of refrigerant,m=0.02 Kg/sPower, P=3 KWx4=0.5    P4=120 KPa    P1=100 KPa…

Q: Consider a two-stage compression refrigeration  system operating between the pressure limits of 0.8…

A:

Q: A refrigeration system using R-12 receives a load of 54 KW at an evaporator temperature  of  - 4 oC…

A: To Find :  a) Determine the power required by the compressor in kW . Given : The evaporator…

Q: HOw will yoU calculate the mass of steam circulated in a condenser?

A: The answer is given below

Q: In an ideal vapour compression refrigeration cycle the specific enthalpy of refrigerant (in kJ/kg)…

A: Given:Exit of evaporator, h1= 232 kJ/kgInlet of condenser, h2= 283 kJ/kgExit of condenser, h3=h4=116…

Q: If an ideal refrigeration cycle (using R-134a) operation at evaporator temperature -10 °C and…

A: Consider the ideal Vapor compression refrigeration cycle on T-s diagram as shown below. where: 1 to…

Q: .25 kg/s. The condenser and evaporator pressures are 1400 and 320 kPa, respectively. Show the cycle…

A:

Q: What is the isentropic efficiency of the pump?

A:

Q: A refrigerant system with a capacity of 15 tons of refrigeration operates at 150 KPA evaporator…

A: Given: The refrigeration capacity, R = 15 ton = 15x3.5 kW The evaporator pressure, P1 = 150 kPa The…

Q: A refrigeration system using refrigerant 12 is to have a refrigerating capacity of 80 kW. The cycle…

A: Given: Refrigerating capacity is 80 kW Evaporating temperature is -15°C  Condensing temperature is…

Q: A refrigerating system using R- 134a has a load of 20 kW. Limits of operating pressures are 750 kPa…

A: Given:Evaporator pressure=150 kPaCondensor pressure=750 kPaLoad=20 kWdegree of superheat=5o C

Q: In the vapor compression refrigeration system, superheating in the evaporator; O increase the (COP )…

A:

Q: Illustrate the contradiction between refrigeration cycles and the second law of thermodynamics while…

A:

Q: 3. When subcooling the liquid refrigerant: a. the refrigerating effect per unit mass increases. b.…

A: Subcooling within a vapor-compression refrigeration cycle has the following effect: It increases…

Q: Consider a two-stage cascade refrigeration system operating between the pressure limits of 1.2 MPa…

A:

Q: In an ideal vapour-compression refrigeration cycle, refrigerant R-12 enters the compressor as a…

A: Given data: -  The temperature of the saturated vapour is T1 = -16 oC. The temperature of the…

Q: The kinetic energy of air as it flows through an adiabatic nozzle.

A: Option (b) Increases.

Q: The COP of vapor-compression refrigeration cycles improves when the refrigerant is subcooled before…

A: The COP of a system is the useful heat supplied or removed to the work required to remove the heat…