What is the maximum thermal efficiency possible for a power cycle operating between600°C and 110°C?(A) 47%(B) 56%(C) 63%(D) 74%

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Answered: What is the maximum thermal efficiency…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Section: Chapter Questions

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Could subsection iv and onwards be solved please?
A certain heat engine operating on a Carnot cycle absorbs 150 J of heat per cycle at its hot reservoir at 135°C and has a thermal efficiency of 22.0%. (a) How much work does this engine do per cycle? (b) How much heat does the engine waste each cycle? (c) What is the temperature of the cold reservoir? (d) What mass of water could this engine pump per cycle from a well 35.0 m deep?
A Carnot cycle works on steam between the pressure limits of 8 MPa and8 kPa. Determine thermal efficiency, turbine work and compression work per kg of steam. I want the correct and clear solution. And inside a white paper
Problem 1 (10 pts) (a) A heat engine operates between a reservoir at 350°C, from which it absorbs 200 kJ of heat per cycle, and a reservoir at 0°C, to which it rejects 115 kJ of heat per cycle. Determine if this engine represents a reversible, irreversible, or impossible cycle? (4 pts)
a) An engineer proposed a design of cyclical engine that operates at the energy source whose temperature is 550 K and a sink at 300 K that generates waste heat. In the design proposal, it has been claimed that the cyclical engine can produces 5 kW while rejecting heat at a rate of 15000 kJ/h. Evaluate if the design proposal is valid. Justify your answer with related calculation.
A medium size power station is used to produce 30 MW net power for a refinery. The station uses steam as the operating fluid and operates according to the Carnot cycle between the pressure limits of 0.4 bar and 35 bar. Steam enters the boiler as a saturated liquid and leaves it as a dry saturated vapour. (x) State the name of the cycle that is used in practice in power stations, along with three key benefits over the Carnot cycle.
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A heat engine uses a monatomic gas in a Brayton cycle. What is the engine's thermal efficiency if the gas volume is halved during the adiabatic compression? Express your answer using three significant figures.
I need help on this assignment: Exhaust gases from the turbine of a simple Brayton cycle are quite hot and may be used for other thermal purposes. One proposed use is generating saturated steam at 110℃ from water at 30℃ in a boiler. This steam will be distributed to several buildings on a university campus for space heating. A Brayton cycle with a pressure ration of 6 is to be used for this purpose. Plot the following:(a) The mechanical power produced,(b) the flow rate of the produced steam,(c) the maximum cycle temperature, all as functions of the rate at which heat is added to the cycle.
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T B A D Consider the cycle in the diagram (very similar to the Rankine Cycle) using water as the working fluid. Process A-B: A saturated mixture of water is pumped from low pressure to a high pressure saturated liquid in an iso-entropic (and adiabatic) process. Process B-C: The high pressure saturated liquid enters a boiler where it is heated at constant pressure process by an external heat source to a super-heated vapor. Process C-D: The super-heated vapor goes through a turbine, generating power exiting as a saturated vapor. Assume an iso-entropic (and adiabatic) process and neglect kinetic energy and potential energy changes. Process D-A: The saturated vapor then enters a condenser where it is condensed at a constant pressure process back to its original state. The boiler operates at 10 MPa (points B & C) and the condenser operates at 100 kPa (points A & D). Assume a mass flow rate of 1 kg/s. a) Make a table of the temperature, pressure, volume, internal energy, enthalpy, entropy…
Geothermal power plants use underground sources of hot water or steam to produce electricity. If a plant receives hot water at 350 F and rejects energy by heat transfer to the atmosphere at 60 F, what is the maximum possible efficiency for the power cycle? 64% 100% 83% 17% O 36%

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What is the maximum thermal efficiency possible for a power cycle operating between 600°C and 110°C? (A) 47% (B) 56% (C) 63% (D) 74%