A heat pump with a coefficient of performance of 1.8 supplies energy to a house at a rate of 75 MJ h-1. Determine the electrical power used by the heat pump.

Q: thermal heat pump with a coefficient of performance of 1.3 supplies a building with 48000 BTU/hr of…

A: Given:COP of heat pump=1.3Heat supplied, Qa=48000 BTU/hrRate, R=$0.20/KWh

Q: A room has to be maintained at 25 deg C at all times. Assuming the outside temperature of the room…

A: GivenT1=25oC=298KT2=-5oC=268KQ=42kW

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

A: Given:TL=20°CQ1=21000 KJ/hQ2=9000 KJ/hCOP=2.4

Q: differentiate between Open Feedwater Heaters and Closed Feedwater Heater with given 1 application on…

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Q: 1. A Carnot engine requires 35kJ/kg from the hot source. The engine produces 15 kW of power and…

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Q: A refrigeration system is to be designed to maintain the temperature in the range of -15°C to -5°C,…

A: The refrigeration temperature is between The outside temperature range is .The refrigeration effect…

Q: What is Coefficient of Performance (COP)? Also differentiate between COP and Efficiency?

A: Coefficient of Performance is ratio of desired effect to the input work. It is also  called as…

Q: A 5 horsepower Carnot engine operates between the temperature limits of 300 degrees Celsius and 50…

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Q: During a flow process 5000 W paddle wheel work is supplied while the internal energy of the system…

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Q: A refrigerating system has a refrigerating effect per kilogram of 220kJ. The heat to be removed is…

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Q: correctly please. I ll rate for correct answer. Don't do wrong

A: Given data Sink temperature =30 0C Heat rejected =800kj/ min Efficiency =.6 Required 1 power output…

Q: In a heat engine as temperature of heat source increases, the Carnot efficiency will O a. Decrease O…

A: Let T1 =Heat source temperature  T2 =Sink temperature  As we know that efficiency of Carnot cycle is…

Q: Room (A) contains only an air conditioner with 6 KW capacity that works 3 hours per day Room (B)…

A: Given Data : Room A : PA=6 kwtA=3 hours Room B : PA=0,9 kwtA=20 hours

Q: 1.0 A heat engine is supplied heat at the rate of 1700 kl/min and gives an output of 9 kW. Determ…

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Q: You are considering adding a water-based thermal store work in combination with the heat pump. What…

A: Given Data: t=2.5 hrsQ=7 kWT=22oC   To Find: The volume of store.

Q: cold Depicted in Fig. Q1 is an irreversible refrigerator whose compressor is powered by a reversible…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: O O O Question No. 15 A 1000 W heater is used for 1 hr every day for 30 days. Find the cost of…

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Q: In an analysis, a heat engine based on the Carnot cycle operating between 1000 0C and 300 0C. The…

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Q: A heat pump with a motor of 2 kW is used to keep a chicken hatchery at 30°C. This latter loses…

A: Given: The power of motor, W = 2 kW The temperature at the chicken hatchery, T1 = 30oC The heat loss…

Q: 360 kJ of heat is transferred from a hot reservoir of 600 K to a cold reservoir of 250 K. If the…

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Q: One of the Computer company in the US uses carnot heat pump to be used for heating its office and…

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Q: A Carnot engine requires 35 kW from the hot source. The engine produces 15 kW of power and the…

A: Given    Heat supplied, QS = 35 kW Power produced, W = 15 kW Find   Heat rejected, QR

Q: A heat pump cycle delivers energy by heat transfer to a dwelling at a rate of 50,000 Btu/h. The…

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Q: Q1/ A refrigeration system operates according to reversed Carnot cycle, low temperature is -20 °C,…

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Q: QI (ii) Figure QI (ii) a residential heat pump plant has a coefficient of Performance 2.4. Calculate…

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Q: An electric resistance heater is used to provide space heating at an efficiency level of 100%. The…

A: Space heating demand: 1137.8 MBHConversion factor: 1 MBH = 1000 BTU/hElectricity cost: $0.13 per…

Q: A heat engine operates between 1625 C and 27 C and receives 400 kJ of heat. The maximum efficiency…

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Q: A Carnot heat pump to heat a house in the winter and keep the interior temperature of the house at…

A: Given dataInterior temperature of house T = 250Out door temperature of of house To = 20CHeat loss…

Q: 3. A REVERSED CARNOT CYCLE IS USED FOR REFRIGERATION AND REJECTS 200 000 Btu/min OF HEAT AT 152.6F…

A: GIVEN DATA- Q2=200000 Btu/min TH=152.6'F TL=450.6'R WE HAVE TO FIND COP , CAPACITY , WORK

Q: The low efficiency of a system means an extra heat energy was added Ture O False O

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Q: 2.Two Carnot heat engines run in series with the efficiency of first engine is k times the second.…

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Q: Determine the rate of heat transfered from the atmosphere.

A: . Determine the rate of heat transferred from the atmosphere.

Q: Qu A heat engine operates between 1625 C and 27 C and receives 400 kJ of heat. The maximum…

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Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.