In figure shown, (E) is a heat engine with efficiency of 0.4 and ( R) is a refrigerator. It is given that Q2 + Q4 3 Q1. Calculate the C.O.P. of the .refrigerator
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A: Higher temperature in the cycle, TH=240oF=388.706 KLower temperature in the cycle, TL=266.483…
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A: Given Data TH=25°C=298 K Tc=-10°C=263 K COP=7.5
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A: Given Data Heat removing from refrigerator = 330 KJ/min =5.5 KW Power input = 3.5KW
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A: Given, Cold reservoir temperature = TC = -18 oC = 255 K Minimum hot reservoir temperature = Thmin =…
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A: Write the expression for the COP.
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Q: 6.) Pineapple fruits with a mass of 500 kg are supplied to a cold storage at 20 C. The cold storage…
A: Given: m = 500 kg T1 = 20 C T2 = 5 C L = 105 kJ/kg Cp = 1.256 kJ/kgK
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A: given data- power consumed = 500 W temperature of the hot reservoir = Thot = 25 deg C = 298 K COP…
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A: Note: As per policy, we can solve the first three subparts. Please resubmit the remaining part.…
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Q: HOW MUCH HEAT IS RELEASED BY THE REFRIGERATOR TO THE HOT RESERVOIR?
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A: Data given- m = 300 kg T1 = -5° C = 268 K T2 = 25° C = 298 K latent heat of freezing = 105 kJ/kg…
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Q: Pineapple fruits with a mass of 500 kg are supplied to a cold storage at 20 C. The cold storage is…
A: Givenm=500kgT1=20oCTC=5oCt=10hr=10×60×60sLHF=105kJ/kgSH =1.256 kJ/kgK
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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…
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- 6.) Pineapple fruits with a mass of 500 kg are supplied to a cold storage at 20 C. The cold storage is maintained at 5 C and the fruits get cooled to a storage temperature in 10 hours. The latent heat of freezing is 105 kJ/kg and the specific heat of fruit is 1.256 kJ/kg.K. Find the refrigeration capacity of the plant.SL-4 A reversible refrigerator is driven by a (non-reversible) heat engine with e-0.250. Both operate between two heat reservoirs at 300K and 450K. The power output of the engine is 5,000W, which is the entire power input to the refrigerator. a) Write down or calculate the magnitudes of the Wk, Qhe and Q. for one second of operation of the b) Write down or calculate the magnitudes of the Wk, Qn, and Q. for one second of operation of the refrigerator. c) Calculate the magnitudes of the Wkest, Qhnet, and Qenet for one second of operation of the system. d) Show on a diagram like the one above for problem SL-1 the energy flow for the engine and refrigerator individually on the left and the net energy flow for the engine-refrigerator system on the right. e) Does this net result violate the second law of thermodynamics? EXPLAIN your answes. 2.Consider the following: 1. Reverse heat engine 2. Main purpose of a machine is to heat up a space 3. Performance is measured with the help of Thermal Efficiency Which of the above condition relates with heat pump? Select one: O a. 2 and 3 only O b. 1 and 3 only O . 1, 2 and 3 O d. 1 and 2 only
- If the coefficient of performance of a refrigerator is 4 and operates at the room temperature (350 K), find the temperature inside the refrigerator?A heat pump is used to heat a house. When the outside air temperature is 266K and the inside is maintained at 293K, the heat loss from the house is 195 kW. a. What is the minimum electric power (kW) required to operate the heat pump? b. What is the rate of heat transfer to the heat pump? C. What is the COP for an ideal heat pump operating between these temperatures?Q.14 In a vapour absorption refrigeration system, the refrigeration temperature ise The refrigerator is operated by solar heat where the temperature reached is 120 C The temperature of heatsink is 50°C. What is the máx. possible COP of the system. nine and refrigerator
- A heat engine running between a pit at 15 degree and an energy storage that is 50 times warmer than the pitworks. 2/3 of the generated power is used to run the Carnot heat pump, which heats an home. Heatpump draws heat from the air at 4 degree and keeps the home at 15 degree. So the heat loss of homeis 61000 kJ / h;a. Describe the system by drawing it schematically.b. Calculate the minimum heat that should be transferred to the heat engine.Round everything to four decimal places. When an air conditioner is reversed it can operate as a heat pump. Assume Carnot cycle operation for both.a. If it performs as a refrigerator, with a power input of 23 kW and heat delivered to be3250 kJ/min, what is its COP? Also, if the temperature inside the refrigerator ismaintained at 0°C, what is the surrounding air temperature?b. If it performs as a heat pump, with the same power input and heat delivery as the ref,what would be its COP? If the outside air temperature is 5°C, what would betemperature inside the house?c. If the COP were doubled for the refrigerator and heat pump, what would be thetemperature change in the surroundings for both?A Carnot engine having a 340 x 620 mm bore and stroke operates between 500 degree Celsius and 50 degree Celsius. The engine rejects 45 kJ of heat in the atmosphere while running at 400 rpm. Assuming a four stroke engine. Find a. thermal efficiency ( %) b. Wnet (kJ) c. Power Produced (kW)
- 3. The system in Problem 2 assumes the AT for heat transfer between the refrigeration system condenser and the environment is zero, and the AT between the refrigeration system evaporator and the cold space is zero. This gives us the best possible performance, but it is unrealistic as you need some reasonable AT to drive the heat transfer. Assume you have a Carnot refrigerator that provides the same 10.55 kW of cooling, but the condenser operates at 35°C and the evaporator is at -15°C. These then, respectively, push heat to the environment at 20°C and pull heat out of the 0°C cold space, as shown in the figure. Assuming the cycle itself (i.e., inside the dashed line) still operates as a Carnot refrigerator, find the electric power needed to generate the 3-tons of cooling capacity, the daily cost for this electricity, and COPR. Environment=20°C QH QH Q₁ Q₁ Cold Space=0°C 35°C W -15°CProvide complete solution and detailed diagram. A refrigerator is to remove heat from the cooled space at a rate of 300 KJ/min to maintain itstemperature at - 8oC. If the air surrounding the refrigerator is 25oC, determine the minimum powerrequired for this refrigerator? A. 0.263 kw B. 0.473 kw C. 0.623 kw D. 0.984 kwOne 2 RT capacity air-cooler consumes 1.8 kW electricity. Estimate the COP of the system and the heat rejected to the environment.