Find COP of refrigerator and heat pump operating between temperatures 300 K and 900

Q: Find COP of a reversible heat pump operating between temperatures 20 and 200 °c

A: Given, Temperature of hot reservoir = TH = 200 oC = 473 K, Temperature of cool reservoir = TL = 20…

Q: The power requirement of the Carnot refrigerator in maintaining a low temperature region at -29.38F…

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Q: A solar energy-based heat engine that receives 80 kJ of heat at 100°C and rejects 70 kJ of heat to…

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Q: A cycle HE does 60kJ of work per cycle. If the efficiency of the heat engine is 60%. The heat…

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Q: Air is heated at constant pressure from 2 7 degrees C to 57 degrees C at 3 bar in a heater from an…

A: Given Data, p=3 bar, T1=27°CT2=57°C, To=280 K

Q: 5.4 In the continuous stirring heating tank, the flow rate of the influent is 200lb/min, the…

A: Write the expression of temperature variation. T=T0e-kt     80=90e-kt   ...... (1)

Q: A domestic food freezer maintains a temperature of-15°C. The ambient air temperature is 30°C. If…

A: The refrigerator is based on the reversed Carnot engine. A refrigerator is a work-consuming device.…

Q: A space to be air-conditioned has a sensible heat load of 34.9 hp and a latent heat load of 6.97 hp.…

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Q: In the given figure Eis a heat engine with efficiency of 0.4 and R is a refrigerator given that Q, +…

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Q: A refrigerator has a coefficient of performance equal to 7. If the refrigerator absorbs 137.5 J of…

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Q: Find the efficiency of the Carnot heat engine operating between 427 C and 77 C.

A: Given, Temperature of source = TH = 427 oC = 700 K Temperature of sink = TL = 77 oC = 350 K…

Q: The COP of a reversed Carnot refrigerator is 5. What is the ratio of highest temperature to lower…

A: Given data,  System is reversed Carnot refrigerator COP = 5

Q: 3. A vapour compression refrigerator uses R-12 as refrigerant and the liquid evaporates in the…

A: Given: h1 = 180.88 kJ/kg h3 = h4 = 45.4 kJ/kg, h1 = 191.76 kJ/kg, s1 = 0.7051 kJ/kg K sg2 = 0.6921…

Q: A Carnot refrigerator has a COP of 3.8. What is the ratio of (T_H/ T_L)? If the work input is 7.5…

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Q: Find the COP of heat pump operating between 1000K and 300K

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Q: .A cold store maintains storage air temperature of minus 23°C in an ambient temperature of 27°C. The…

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Q: A solar energy based heat engine which recieves 55 kJ of heat at 100° Cand rejects 45 kJ of heat to…

A: Given Data QH=55 kJ QL=45 kJ

Q: Low Temperature Reservoir at TL QH Qu + QL Heat Engine Wnet · Refrigerator Na = 100% = Qu QL High…

A: Find the wrong things in the given system

Q: M and N are reversible heat engines connected to each other in a series form. The engine M receives…

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Q: Find the COP of refrigerator working between temperatures 350 K and 1050 K. What will be efficiency…

A: Given data:

Q: Q2/ A refrigeration system operates according to reversed Carnot cycle, low temperature is 40 °C and…

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Q: A heat engine has a heat input of 500 KJ\Kg and produces 200 KJ\Kg. if the maximum * temperature is…

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Q: Petermine the maximum possible efficiency of the heat engine shown below. Also find the maximum…

A: Given   Heat supplied, QH = 900 kJ/s Temperature, TH = 600oC = 873 K                        TL =…

Q: A water cooler for drinking water should cool 25 L/h water from 18 C to 10 C while the water…

A: Given dataInitial temperature T1 = 180CFinal temperature T2 100CCoeficient of performance COP =…

Q: An inventor draws 25000 kJ/h of heat from a heat well at -30°C, which requires 1.2 kW of power. He…

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Q: Do fast

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Q: Figure below shows a reversible heat engine ER having heat interactions with three constant…

A: Given:Q1=100 kJQ2=50 kJ

Q: Find the co-efficient of performance and heat transfer rate in the condenser of a refrigerator in…

A: Write the given data. QR=12000 kJ/hWin=0.75 kW=0.75 kW3600 s1 h=2700 kJ/h

Q: A freezer maintains a temperature of-30°C. The ambient air temperature is 20°C. If heat leaks into…

A: Data given-  T1 = -30°C = 243 K  T2 = 20°C = 293 K  Q2 = 3.15 kJ/s

Q: 3. On a cold (-10-C) winter day, a heat pump provides 20 kW to heat a house maintained at 20-C and…

A: Given data:

Q: A heat pump shown is driven by 3.0 MW motor and receives heat from a source at 60 C and deliver…

A: Given, Temperature of source = TL = 60 oC = 333 K Temperature of boiler = TH = 140 oC = 413 K Work…

Q: A space to be air-conditioned has a sensible heat load of 34.9 hp and a latent heat load of 6.97 hp.…

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Q: An older refrigerator uses 4.22 kWh per day while an Energy Star refrigerator uses 0.78 kWh per day…

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Q: Find the maximum thermal efficiency possible for a power cycle operating between 1200 oF a

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Q: The thermal efficiency of an engine used to drive a refrigerator is 30%. The heat input into the…

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Q: If a heat engine gives an output of 3KW when the input is 10000J/s then the thermal efficiency of…

A: Heat engine is a device used for the conversion of heat into work. It works between a hot reservoir…

Q: A central power plant, rated at 800 MW, generates steam at 585 K and discards heat to a river at 295…

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Q: Find the COP of heat pump operating between 300 K and 600K temperature. If the same temperature…

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Q: A heat engine working on Carnot cycle receives heat at the rate of 40kW from a source at 1200 K and…

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Q: 5. A heat engine release heat into the cold reservoir at 500 K with a carnot efficiency of 25 %.…

A: The exhaust temperature of 266.66 K is needed for 60% Carnot efficiency.

Q: A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature…

A: As given in the question, Temperature of sink = TL = 300 K Initial efficiency of Carnot engine = η1…

Q: Q2 / Heat is transferred from a tank of water in a refrigerator at(OC) degrees to a tank of boiling…

A: As per our guidelines, experts can provide solution to only one problem in case of multiple…

Q: a refrigerator maintains a temperature of 0°c in the cold compartment with a room temperature of…

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Q: A heat source of unknown temperature supplies energy of (R + 650)k) to a Carnot heat engine. If this…

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Q: Provide the solution and diagram. A 120 tons refrigeration system with COP of 5 has a condenser…

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Q: A solar energy based heat engine which recCieves 75 kJ of heat at 98°C and rejects 65 kJ of heat to…

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Q: A cycle heat engine does 60KJ of work per cycle. If th efficiency of the heat engine is 60%. The…

A: Given data: W=60 kJη=60% Need to determine the heat rejected per cycle.

Q: An inventor comes to you saying he has invented a refrigerator that maintains a room at 20F while…

A: Given data Maintaining Temperature (TL) = 20 F = 266.83 K Operating temperature ( TH) = 80 F =…

Q: Find the COP of a Carnot refrigerator working on this temperature limits 320Celsius and 25°Celsius.

A: Given, Higher temperature = TH = 32 oC = 305 K Lower temperature = TL = 25 oC = 298 K   Coefficient…