Describe the Part of the heat received by a heat engine is converted to work, while the rest is rejected to a sink.
Q: Describe the work (shaft) done on an adiabatic system is equal to the increase in the energy of the…
A: From first law of thermodynamics we know that for any thermodynamic process the net heat heat…
Q: Explain the principle of operation of a refrigerator (include a simple diagram).
A: Refrigerator is a device which gives refrigerating effect by consuming work.
Q: What is the highest COP that a refrigerator operating between temperature levels TL and TH can have?
A: The maximum COP(Coefficient of performance)in a refrigerator is possible only when it runs on…
Q: What is a heat pump and how does it work?
A: Note- I only give one solution at one time for other question you will upload again.
Q: Task 4 A heat pump using refrigerant-134a heats a house by using underground water at 8°C as the…
A: Given: The temperature of underground water, Tw = 8°C The rate of heat loss, Qr = 60,000 kJ/h The…
Q: b) A heat pump used to heat a house runs about one-third of the time. The house is losing heat at an…
A: Given Data Ql= 22000 kJ/h CoP= 2.8
Q: During an average year of operation, the heat pump described in Part (a) above provides 15kW of GI…
A: Heat pump is a device used to extract heat from lower temperature source and provide it to a higher…
Q: An air-conditioner with refrigerant-134a as the working fluid is used to keep a lab at 26°C by…
A: Given DataP1=500kPaP2=1200kPaP=850kWQ=100L/minT1=34°CT2=34°C
Q: Describe briefly the difference between a heat engine and a heat pump.
A: To explain: The difference between a heat engine and heat pump. Explanation: The difference between…
Q: A heat pump used to heat a house runs about one-third of the time. The house is losing heat at an…
A:
Q: Detemine the COP of a heat pump when it is working between 1000 K and 100 C.
A: Given Cold temperature = 100 C Hot temperature = 1000 K To find COP
Q: A heat pump is to be used for heating a house in winter. The house is to be maintained at 78°F at…
A: Given: The temperature of the house is T1=78 °F The temperature of the outdoor is T2=25 °F The heat…
Q: Refrigerant as a work fluid to keep an environment at 25 ° C. A heat pump using 134a is used. The…
A: The environment temperature of refrigerant fluid is given as,TL=25∘C The evaporator entering…
Q: 4-kW heat pump is operated by a peasant. It should keep a duck hatchery at 32 degrees celsius, where…
A: It is required to determine COP of heat pump
Q: An air conditioner is used to cool a house. When the outside air temperature is 306K and the inside…
A: Given data: Outside air temperature is TH=306 K Room temperature is TL=295 K Cooling effect is 17 kW
Q: A heat pump is to be used for heating a house in winter. The house is to be maintained at 78°F at…
A: Given, T1 = 78°F T2 = 50°F Tambient = 25°F Q = 70,000 Btu/h COP = 11-(T2T1)COP =…
Q: Which of the following energy conversion devices convert heat into work? Select one: O a.…
A: Evaporator: It is an example of heat exchanger device in two fluids(one is cold and one is hot)…
Q: (iii) What is the difference between a refrigerator and a heat pump?
A: Solution to the first question (iii) as per our Company policy. To find: The difference between a…
Q: Discuss how a refrigerator works
A: Discuss how a refrigerator works
Q: eat engine work
A:
Q: The device that receives heat energy from source and that rejects heat into sink is known as a. Heat…
A: The device that receives heat energy from source and that rejects heat into sink is known as a. Heat…
Q: 11-A maximum of 5 kW of power can be consumed for a heat pump. If the efficiency coefficient is…
A: coefficient of performance COP = Desired effect / work input required
Q: 3.) When a gas surrounded by air is compressed or expands adiabatically, its temperature rises or…
A: Since you have asked multiple questions, only the first question is solved for you. If you want any…
Q: 3. A steam power plan. A 1.5 kg of water is delivered to the boiler per second. Water entering the…
A: Applying steady flow energy equation considering boiler and turbine as single unit -…
Q: .Determine the coefficient of performance for a Carnot Cycle Refrigerating Machine and for a Carnot…
A: Given:Tc=86 F =303.15 Ka) 50 F =283.15 Kb) 30 F =272.04 Kc) 10 F =260.9 Kd) -10 F =249.81 K
Q: Describe how a heat engine operates and sketch a diagram showing the main elements of this system.
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Q: Prob.24. A heat engine, a heat pump and a refrigerator receive 500 kJ of heat each, but they reject…
A: Given data: The heat received by a heat engine, heat pump is Qin = 500 kJ. The heat reject by a…
Q: nd out the COP of a Carnot heat pump operating between 6°C and
A: Given:High temperature of heat pump, T1=37o C or 310 KLow temperature of heat pump, T2=6o C or 279 K
Q: 5. Consider a building whose annual air-conditioning load is estimated to be 120,000 kWh in an area…
A: Given data:Annual load L = 120,000 KWhPer unit cost of electricity = $0.10/KWhCOP of A = 3.2COP of B…
Q: Give the Energy balance at an open heater
A: We know that, open heater (open feed water heater) is used with Rankine cycle for regeneration. For…
Q: Consider a pan of water being heated by placing it on an electric range? Explain.
A: Electric range or electric stove used to cook. It is an electrical heating device. Nowadays it is…
Q: ifferentiate Refrigerator from Heat pumps in terms of: (a) Transfer of Heat, (b) Location of the…
A: Given Refrigerator Heat pump To find Differences
Q: The Working fluid in heat pumps is called _______ Which is not a thermal energy sink a.…
A:
Q: What should be the capacity of air-conditioner for the room shown in figure. 1.50 2.00 2.50 m Room…
A: Capacity of air conditioner means the tonnage of AC needed to be installed. Capacity depends on…
Q: Qin Qout Cold Body System Hot Body Win Consider the refrigeration cycle outlined above. If the…
A:
Q: 10.) A heat pump used to heat a house runs about one-third of the time. The house is losing heat at…
A: GIVEN DATA - DESIRED EFFECT Q=24000KJ/h HEAT PUMP RUNS ONE-THIRD TIME COP =3 WE HAVE TO FIND POWER
Q: Explain with a neat diagram with all parameters, the components and working of a heat pump system
A:
Q: b) A heat engine operates between two reservoirs at 800°C and 20° C. One-half of the work output of…
A: First, we find the COP of the heat pump…
Q: A reverse heat engine is used as a heat pump. The outside air temperature is (- 5°C). The building…
A: GIVEN DATA REVERSIBLE HEAT PUMP LOWER TEMPRATURE =-5'C HIGHER TEMPRATURE =25'C DESIRED EFFECT ON…
Q: Energy losses in the solar power tower is parabolic trough power plant O a. more than O b. equal or…
A: Given :- Energy losses in the solar power tower is .................... parabolic trough power…
Q: DEFINE THE REFRIGERATORS AND HEAT PUMPS
A: Refrigerator: Refrigerator is the device used to keep the things at the temperature below than the…
Q: Differentiate refrigerator and heat pump
A: Both the refrigerator and the heat pumps carry the heat from low temperature reservoir or the sink…
Describe the Part of the heat received by a heat engine is converted to work, while the rest is rejected to a sink.
The second law of thermodynamics heat engine only converts a part of heat absorbed from the source to work.
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- Can a heat pump switch from heating to cooling and from cooling to heating automatically?A tankless water-heating system gets its heat from thesystem's_______.When the outside ambient air temperature is 90F, the temperature of the condensing refrigerant in a standard- efficiency unit should be approximately A. 120F. B. 130F. C. 140F. D. 150F.
- 2) A heat pump with the amount of heat of liquid refrigerant (mix) when it will enter the expansion of 480 Btu/lb. while the amount of heat from the refrigerant vapor after leaving the evaporator is 412 Btu/lb. What is the coefficient of performance (COP) if the heat amount of the superheated refrigerant after being compressed by the compressor has a value of 572 Btu/lb?For each of the three heat pumps described, state whether it violates the First Law of Thermodynamics, the Second Law of Thermodynamics or neither. All three have a hot reservoir temperature of 400K and a cold reservoir temperature of 300K. a. 100J of work are done to the system. 200J of heat are pulled from the cold reservoir. 300J of heat are dumped into the hot reservoir. b. 50J of work are done to the system. 250J of heat are pulled from the cold reservoir. 300J of heat are dumped into the hot reservoir. c. 100J of work are done to the system. 100J of heat are pulled from the cold reservoir. 300J of heat are dumped into the hot reservoir.1. Please consider a heat engine that was taking in heat at the rate of 250 Btu/sec and produced 85 hp. Please determine the efficiency of the engine.
- 3) If the measurement parameters of a refrigeration machine are known, the amount of heat for liquid refrigerant (mix) when it enters the evaporator is 650 Btu/lb, the amount of heat for vapor refrigerant after it comes from the evaporator is 950 Btu/lb, and the amount of heat for superheat refrigerant after being compressed is 1280 Btu/lb. lb. Calculate the efficiency of the refrigeration machine?Yeji just came back from dance practice and went straight to her bedroom. It was summer so the temperature in her bedroom was estimated to be around 40°C. She then turned her air conditioner on, closed her door and windows, and it cooled her bedroom to 18°C in 20 minutes. Calculate,a. How much heat was transferred to cool her bedroom to 18°C?b. What is the power consumption of the air conditioner, in kW?The air conditioner has a COP of 2.8. Assume the mass of her entire bedroom to be 750 kg of air, Cv = 0.72 kJ/kg.°C and Cp = 1.0 kJ/kg.°C.*Round off all answers to four decimal places*The following data for the R-12 refrigeration system as shown are as follows: Evaporator 1 0 OC 30 TOR Evaporator 2 -10OC 20 TOR Evaporator 3 -20OC 10 TOR Condenser 20OC Assume simple saturation and isentropic compression and determine the following: a) Draw the h-s diagram b) The refrigerant flow in each evaporator c) Total work of compression, WC in kW d) Heat rejected in the condenser, QR in kj/min e) Coefficient of performance
- Find the heat lost or gained (a) between the evaporator coils and compressor, (b) between the compressor and condenser, and (c) to condenser water.Describe briefly the difference between a heat engine and a heat pump.energy of the water. 2.) A room air conditioner has a coefficient of performance of 2.9 on a hot day and uses 850 W of electrical power. (a) How many joules of heat does the air conditioner remove from the room in one minute? (b) How many joules of heat does the air conditioner deliver to the hot outside air in one minute? (c) Explain why your answers to parts (a) and (b) are not the same. 24 Carnot beat engine has a thermal efficiency of 0.600, and the temperature of its hot reservoir is 800