Answered: A solar energy-based heat engine that…

A solar energy-based heat engine that receives 80 kJ of heat at 100°C and rejects 70 kJ of heat to the ambient at 30°C is to be designed. The thermal efficiency of the heat engine is

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 12RQ: Refrigerators currently being manufactured in the United States are using______as their refrigerant.

See similar textbooks

Related questions

Q: A cold storage is to be maintained at -10°C while the surroundings are at 25°C. The heat leakage…

A: Data given- T1 = -10°C = 263 K T2 = 25° C = 298 K Q1 = 35 kW COPactual = 0.25 × COPideal

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

Q: A large heat pump should upgrade 4 MW of heat at 65 C to be delivered as heat at 145 C. What is the…

A: Given:T1=65οC=(65+273)K=338KT2=145οC=(135+273)K=418KQ1=5 MW

Q: A gasoline truck engine takes in 10,000 J of heat and delivers 2,000J of mechanical work per cycle.…

A: A heat engine is a mechanical device which converts heat(low grade energy) into useful form/high…

Q: 80 kJ of heat at 100 deg C and rejects 70 kJ of heat to the ambient at 30 deg C is to be designed.…

A: given:heat added Q1=80kjheat rejected Q2=70kjT1=100CT2=30C

Q: You have three devices: a Carnot heat engine, a Carnot heat pump and a Carnot refrigerator. Use a…

A: Given, Cold reservoir temperature = TC = -18 oC = 255 K Minimum hot reservoir temperature = Thmin =…

Q: 3.Two Carnot heat engines run in series with the efficiency of first engine is 1/k times the second.…

Q: 2. Between 300K and 600K is the operating temperature of a pair of heat pumps connected in series.…

Q: A Carnot heat engine is operating between a source at TH and a sink at TL. If we wish to double the…

A: Given: The temperature of the source is TH. The temperature of the sink is TL.

Q: The heat removal rate from a refrigerated space and the power input to the compressor are 8.5 kW and…

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

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

Q: You are considering two heaters in your house which must provide 10kW of heating. You expect to run…

Q: A heat pump absorbs 10 kW of heat from outside environ- ment at 250 K while absorbing 15 kW of work.…

A: Useful data from the given question is as below, Heat absorbed from low-temperature reservoir = QL =…

Q: An inventor draws 25000 kJ/h of heat from a heat well at -30°C, which requires 1.2 kW of power. He…

Q: Since Lucas is an engineer familiar with thermodynamics. He decided to create his own heat engine at…

Q: A Carnot heat pump is being considered for home heating in a location where the outside temperature…

A: Given : Lowest temperature, TL = - 35 oC = - 35 + 273 = 238 K Cop of Carnot heat pump = 1.5 To find…

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

Q: In an area, heat is supplied at a heat engine with a temperature of 700°C, while waste heat is…

A: Given Data T1=700°C=973 K T2=60°C=333 K T3=25°C=298 K T4=10°C=283 K Q3=80000 kJ/hr

Q: Plot the Carnot efficiency of Heat engine at thermal power plant over temperature range of 400 to…

Q: An inventor just invented a kind of heat engine that could operate at a maximum temperature of 1000K…

Q: The thermal efficiency of a Carnot heat engine is 30%. If the engine is reversed in operation to…

Q: thermal efficiency of the heat engine.

A: Given; A solar energy based heat engine which recieves ;Q1=90 kJAnd it rejects;Q2=70 kJTemperature…

Q: thermal power plant over temperature range of 400 - 750 degree celcius

A: GIVEN: T1=750CT2=400C

Q: A bio-reactor is kept at 42°C by a heat pump driven by a motor of 2 kW. The reactor loses energy at…

A: We have to find What is the minimum ambient temperature for which the heat pump is sufficient?

Q: Consider a heat engine rate of heat production at 85 MW and at the same time reject heat to a sink…

Q: A heat engine has a thermal efficiency of 70%. During each cycle the engine does 400J of work. What…

A: The thermal efficiency of heat engine is The work done is

Q: Since Lucas is an engineer familiar with thermodynamics. He decided to create his own heat engine at…

A: Calculate the Carnot efficiency of heat engine. ηHE=T1-T2T1=750+273-50+273750+273=0.684

Q: A heat pump is used to heat a house during the winter. The house is to be maintained at 20 C at all…

A: Given data: The temperature of the house, TH = 20°C. Temperature of surrounding, TL = -10°C. Rate…

Question

A solar energy-based heat engine that receives 80 kJ of heat at 100°C
and rejects 70 kJ of heat to the ambient at 30°C is to be designed. The
thermal efficiency of the heat engine is

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 by step

Solved in 2 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, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

.The thermal efficiency of a heat engine is 30%, the heat rejected from the engine is 30kJ, evaluate the heat input to the engine.
Asap please
A solar energy based heat engine which receives 80 kJ of heat at 100 deg C and rejects 70 kJ of heat to the ambient at 30 deg C is to be designed. The thermal efficiency of the heat engine is
of Performance of the heat pump which should be higher than 100%) when the cabin temperature is 24°C and there is a 20°C temperature difference betveen the indoor cabin and outside at night?
I need the answer as soon as possible
The thermal efficiency of a Carnot heat engine is 30%. If the engine is reversed in operation to work as a heat pump with same operating conditions then what will be the COP for heat pump?
A heat engine has a thermal efficiency of 70%. During each cycle the engine does 400J of work. What is the magnitude of waste heat rejected to the low temp reservoir?
Find out the COP of a Carnot heat pump operating between 6°C and 37°C.
None
Don't copy from any source
A 4-kW heat pump is operated by a peasant. It should keep a duck hatchery at 32 degrees Celsius, where heat is removed at a rate of 10 kW to the cooler ambient Tambiont. What is the minimum COP for the pump that will be acceptable?
A Carnot Engine receives 250 KJ/s of heat form a heat-source reservoir at 525ºC and rejects heat to a heat-sink reservoir at 50ºC. What is the power developed and heat rejected?