a refrigerator maintains a temperature of 0°c in the cold compartment with a room temperature of 25.0°c. it removes energy from the cold compartment at the rate 8 000 kj/h. (a) what minimum power is required to operate the refrigerator? (b) at what rate does the refrigerator exhaust energy into the room?

Q: The heat removal rate from a refrigerated space is 7.2 kW and the power input to the compressor is…

A: Given, Rate of heat removal from refrigerated space = Q2 = 7.2 kW Power input = W = 1.8 kW…

Q: B. A Carnot heat engine, shown in Fig. below, receives 400 kJ of heat per cycle from a…

A: Given:Qa=400 KJTH=552°CTL=25°C

Q: A household freezer opera a rate of 2 kW to maintain power input required to o

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A: Step 1: Step 2:

Q: A refrigerator maintains the freezer compartment at -10°C when the air surrounding the refrigerator…

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Q: A refrigeration cycle operating between hot and cold reservoirs at 40° C and 0°C removes energy by…

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A:

Q: An air conditioner with refrigerant-134a as the refrigerant is used to keep a large space at 20°C by…

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Q: Q14. The man M weighs 750 N and jumps onto the boat B which is originally at rest. If he has a…

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Q: power required to drive the compressor in a Carnot refrigerator is 56 hp. It operates between -6°C…

A: Handwriting.jpg

Q: It takes 10 kW to keep the interior of a certain house at 20 degree C when the outside temperature…

A: GivenQ=10kWTH=20oC=293KTL=0oC=273K

Q: The Carnot heat machine takes the heat from a source at 1200 K from a source at a rate of 1080 kJ /…

A:

Q: A household freezer operates in a room at 20°C. Heat must be transferred from the cold space at a…

A: Room temperature, TH=20oC=20+273=293 KCold space temperature, TL=-20oC=-20+273=253 KHeat transferred…

Q: Q7: An air conditioning system is used to maintain a house at a constant temperature of 20 C. The…

A:

Q: A heat pump can use a maximum of 2 kW power for maintaining a house at 20°C during winter. The rate…

A: Data given-  Q1 = 3000 kJ/hr = (3000/3600) kJ/s  Q1 = 0.833 kW  W = 2 kW  T1 = 20°C = 293 K…

Q: rigerator has a coefficient of performance equal to 5. If the refrigerator absorbs 120 J of thermal…

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Q: A real (non-Carnot) heat engine has heat reservoirs at temperatures of 510 K and 270 K. It performs…

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Q: A Carnot heat engine with a thermal efficiency of 70% is supplied with heat at a rate of 800 kJ/min.…

A:

Q: 1. A Carnot heat engine absorbs heat at a rate of 10 kJ/s from a source at 500°C and rejects the…

A: Absorbed heat by Engine, Q1=10 kJ/sSource temperature of enigne, T1=500 °C=773 KSink temperature of…

Q: A CARNOT heat engine receives heat from a reservoir at 900°C at a rate of 800kJ/min and rejects the…

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Q: An engineer, in his work on the heat engine, determined that the heat engine received 500 kJ of heat…

A: Write the given data with suitable variables. Q1=500 kJT1=700 KQ1-Q2=240 kJT2=370 K

Q: The power required to drive the compressor in a carnot refrigerator is 60hp. It operates between…

A: For solution refer below images.

Q: 2) A refrigerator that has a power (electric) input of 450W and a COP of 2.5 is to cool five large…

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Q: The energy leakage per unit time is 0.6 kW for each 1℃ temperature difference between a house to be…

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Q: A refrigerator absorbs 137 kJ/kg of heat from a cool compartment at -10°C and rejects heat to the…

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Q: A reversible heat engine operates between 600°C and 40°C and drives a reversible refrigerator…

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Q: The ice maker inside a refrigerator makes ice cubes at 0.0°C from water that is at 17.2°C when it…

A: Given data: Initial water temperature, T1 = 17.2°C. Final ice temperature, T2 = 0.0°C. The energy…

Q: In an area, heat is supplied at a heat engine with a temperature of 700°C, while waste heat is…

A: Given Data T1=700°C=973 K T2=60°C=333 K T3=25°C=298 K T4=10°C=283 K Q3=80000 kJ/hr

Q: Explain the principle of refrigerator? Show that a reversible heat engine acts as a refrigerator.

A: Principle of refrigeration: Refrigeration is the cooling of a system below the temperature of its…

Q: e power required to drive the compressor in a Carnot refrigerator is 46 hp. It operates between -8°C…

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Q: The maximum efficiency of a heat engine works between 660 K and 323 K is

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Q: A heat engine takes heat from a source with a temperature of 1500 K and leaves it to an environment…

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Q: Maximum possible thermal efficiency of heat engine operating between temperature (A) T1= 80 C and T2…

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Q: Water is being cooledd in a closed container while being stirred by a paddle wheel. During this…

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Q: Consider three reservoirs that are TH = 473.2 K, TL = 293.2 K and TI = 277.2 K.  A Carnot heat…

A:

Q: What is the difference between refrigerators and heat pumps? From their mechanics and theory

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Q: The power required to drive the compressor in a Carnot refrigerator is 48 hp. It operates between…

A: Given data: TL=-6°C=267 KTH=39°C=312 K Need to determine the coefficient of performance.