A refrigerator operating on the reversed carnot cycle has a measured work input of 200kW and heat rejection of 2300kW to a heat reservoir at 27°C. Determine the cooling load supplied to the refrigerator, in Btu/minand the temperature of the source in °F.(

A refrigerator operating on the reversed carnot cycle has a measured work input of 200kW and heat rejection of 2300kW to a heat reservoir at 27°C. Determine the cooling load supplied to the refrigerator, in Btu/minand the temperature of the source in °F.(

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter4: The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 93CP: A Carnot refrigerator, working between 0 and 30 is used to cool a bucket of water containing 102...

See similar textbooks

Related questions

Q: The efficiency of a Carnot cycle is Te ec =1- Th (a) If an engine operating between heat reservoirs…

A: Given, An engine operating between heat reservoirs at,TC =293 KTH = 473 KHeat extracted, QH = 1000 J…

Q: The change in entropy ih an adiabatic processis equalto Zero if the processisreversible and greater…

A: Any thing in nature is not 100% efficient. Similarly if we give heat to a system all heat energy…

Q: A refrigerator has a coefficient of performance of 4. If th absorbs 30 cal of heat from cold…

A: Given Coefficient of performance of a refrigerator , COP=4Refrigerator absorb heat from cold…

Q: Air expands polytropically in a piston-cylinder arrangement from an initial pressure and volume of…

Q: Consider a Carnot cycle executed in a closed system with 0.6 kg of air. The temperature limits of…

Q: A Carnot refrigerator extracts 35.0 kJ as heat during each cycle, operating with a coefficient of…

Q: An elec power plant operating on the Carnot cycle puts heat into a river with a water temperature of…

Q: Consider a monatomic ideal gas operating through the Carnot cycle. The initial volume of the gas is…

Q: P Isotherm V. 2V,

Q: An ideal Otto cycle has a compression ratio of 10.5, takes in air at 90 kPa and 40C, and is repeated…

Q: How does the thermal efficiency of an ideal cycle, in general, compare to that of a Carnot cycle…

Q: Does the entropy per cycle increase, decrease, or remain the same for (a) a Carnot refrigerator, (b)…

Q: A gas-turbine power plant operates on the simpleBrayton cycle between the pressure limits of 100 and…

Q: For a reversible process, the entropy generation and thus the exergy destruction are zero? Explain.

A: Introduction: Thermodynamics plays a crucial role in the system where the energy exchange or energy…

Q: An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air…

Q: What is the efficiency of a gasoline engine that receives 194.5 J of energy from combustion and…

Q: As shown in the figure, a chamber with a moveable piston and containing a monatomic ideal gas in an…

Q: If the engine does 5.0 J of work per cycle, how much heat per cycledoes it absorb from the…

Q: A nuclear power plant operates at 70 % of its maximum theoretical (Carnot) efficiency between…

A: Given: The source temperature is 620 °C. The sink temperature is 330 °C. The efficiency of the power…

Q: Steam enters an adiabatic turbine steadily at 7 MPa,500C, and 45 m/s, and leaves at 100 kPa and 75…

A: For the given initial pressure (p1) and temperature (T1), the initial enthalpy (h1) and the entropy…

Q: Suppose you want to operate an ideal refrigerator that has a cold temperature of -7.5°C, and you…

A: Suppose you want to operate an ideal refrigerator that has a cold temperature of -7.5°C, and you…

Q: As shown in the figure, a chamber with a moveable piston and containing a monatomic ideal gas in an…

A: Find the volume of the gas at state C (in L). Determine values (in kJ) for Q, W, and ΔEint for the…

Q: Consider a steady-flow Carnot cycle with water as the working fluid. The maximum and minimum…

Q: Suppose you want to operate an ideal refrigerator with a cold temperature of −10.0ºC , and you would…

A: It is given that,

Q: Suppose you want to operate an ideal refrigerator that has a cold temperature of -12.5°C, and you…

A: Temperature inside the refrigerator, Coefficient of performance of the refrigerator,

Q: Find the change in the total entropy when 0.1 kg. of liquid water at 100 C is placed in thermal…

Q: If a refrigerator discards 80 J of heat per cycle and its coefficient of performance is 6.0, what…

A: Given, a refrigerator discards heat, QH = 80 J Coefficient of performance, KR = 6.0 the quantity of…

Q: An engine with an efficiency of 0.34 absorbs 55 J from a heat reservoir in each cycle. If it…

Q: To make ice, a freezer that is a reverse Carnot engine extracts 42 kJ as heat at -15 C during each…

Q: For an ideal heat engine operating at its maximum possible efficiency of 46%, what is the highest…

Q: Compute the entropy change of 5 g of water at 100 oC as it changes to steam at 100 degree celsius

A: Entropy can be expressed as, ΔS=QΔT

Q: An inventor claims a new cyclic engine that uses organic grapejuice as its working material.…

A: heat absorbed, QH = 1250 J temperature of hot reservoir, TH = 1010 K work, W = 1120J temperature of…

Q: What is the minimum work required of a refrigerator if it is to extract 50 J per cycle from the…

A: The expression for work done by the refrigerator is,

Q: In this cycle the system, which is an ideal monatomic gas, undergoes first isothermal (i) then…

A: Given: For monoatomic gas, Process i) = isothermal compression Process ii) = adiabatic compression…

Q: An engine that absorbs 480 J of heat per cycle has an efficiency of 00.34. How much work W does the…

Q: How much energy (in Joules) must be supplied to the machine to achieve this ta Sol. Since the…

A: GivenTemperature of cold site ,TC=0°C=273 KTemperature of hot site ,TH=24°C=24+273=297 KMass of…

Q: A certain gasoline engine has an efficiency of 27.5 %. What would the hot reservoir temperature be,…

Q: An engineer must design a refrigerator that does 300 J of work per cycle to extract 2100 J of heat…

A: Write the variables with suitable value.

Q: A 0.20 kg/s of air are compressed isothermally from P,= 100 kPa and V,= 0.15 m³/s to P,= 700 kPa.…

Q: Does the area enclosed by the cycle on a T-s diagram represent the net work input for the reversed…

A: In a reversed Carnot cycle, the system absorbs an ideal gas in which the functioning material…

Q: A hot-water stream at 70C enters an adiabatic mixing chamber with a mass flow rate of 3.6 kg/s,…

Question

A refrigerator operating on the reversed carnot
cycle has a measured work input of 200kW and heat
rejection of 2300kW to a heat reservoir at 27°C.
Determine the cooling load supplied to the refrigerator,
in Btu/minand the temperature of the source in °F.(

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

The energy output of a heat pump is greater than the energy used to operate the pump. Why doesn't this statement violate the first law of thermodynamics?
A car tile contains 0.0380 m3 of air at a pressure of 2.20105 Pa (about 32 psi). How much more internal energy does this gas have than the same volume has at zero gauge pressure (which is equivalent to normal atmospheric pressure)?
A Carnot heat pump operates between 0 and 20 . How much heat is exhausted into the interior of a house for every 1.0 J of work done by the pump?
In a diesel engine, the fuel is ignited without a spark plug. Instead, air in a cylinder is compressed adiabatically to a temperature above the ignition temperature of the fuel; at the point of maximum compression, the fuel is injected into the cylinder. Suppose that air at 20 C is taken into the cylinder at a volume V1 and then compressed adiabatically and quasi-statically to a temperature of 600 C and a volume V2 . If =1.4 , what is the ratio V1/V2 ? (Note: static. In an operating diesel engine, the compression is not quasi-
In a quasi-static isobaric expansion, 500 J of work are done by the gas. The gas pressure is 0.80 atm and it was originally at 20.0 L. If the internal energy of the gas increased by 80 J in the expansion, how much heat does the gas absorb?
Check your Understanding Show that QhQh=QcQc for the hypothetical engine of Figure 4.10 The second property to be demonstrated is that all reversible engines operating between the same two reservoirs have the same efficiency. To this, stat with the two engines D and E of Figure 4.10 (a), which are operating between two common heat reservoirs at temperatures Th and Tc . First, assume that D is a reversible engine and that E is a hypothetical irreversible engine that has a higher efficiency than D. If both engines perform the same amount of work W per cycle, it follows from Equation 4.2 that QhQh . It then follows from the first law that QcQc . Figure 4.10 (a) Two uncoupled engines D and E working between the same reservoirs. (b) The engines, With D working reverse. Suppose the cycle of D is so that it operates as a refrigerator, and the two engines are coupled such that the work output of E is used to drive D, as shown in Figure 4.10(b). Since QhQh and QcQc , the net result of each cycle is equivalent to a spontaneous transfer of heat from the cold reservoir to the hot reservoir, a process second law does not allow. The original assumption must therefore be wrong, and it is impossible to construct an irreversible engine such that E is more efficient than the reversible engine D. Now it is quite easy to demonstrate that the efficiencies of all reversible engines operating between the same reservoirs are equal. Suppose that D and E are reversible engines. If they are as shown in Figure 4.10(b), the efficiency of E cannot be greater than the efficiency of D, or second law would violated. If both engines are then reversed, the same reasoning implies that the efficiency of D cannot be greater than the efficiency of E. Combining these results leads to the conclusion that all reversible engines working between same two reservoirs have the same efficiency.
An engineer must design a refrigerator that does 300 J of work per cycle to extract 2100 J of heat per cycle from a freezer whose temperature is 10 . What is the maximum air temperature for which this condition can be met? Is this a reasonable condition to impose on the design?
In an adiabatic process, oxygen gas in a container is compressed along a path that can be described by the following pressure in atm as a function of volume V, with V0=1L:P=(3.0atm)(V/V)1.2 . The initial and final volumes during the process were 2 L and 1.5 L, respectively. Find the amount of work done on the gas.
It is claimed that a certain cyclical heat engine operates between the temperatures of TH = 460°C and TC = 153°C and performs W = 4.1MJ of work on a heat input of QH = 5.05 MJ. - How much heat, in megajoules, would be discharged into the low-temperature reservoir?
A typical electric refrigerator has a power ratingof 400 W, which is the rate (in J/s) at whichelectrical energy is supplied to do the work neededto remove heat from the refrigerator. If therefrigerator releases heat to the room at a rate of900 W, at what rate (in watts) does it remove heatfrom the inside of the refrigerator?
If a carnot engine operates between 35 C to 76C. WHat is its thermal eficiency
A Carnot refrigerator extracts heat from a freezer at -5 degree C and exhausts it at 25 degree C . How much work per kcal of heat extracted is required?