A heat engine is supplied with 2512kJ/min of heat at 650°C. Heat rejection with900kJ/min takes place at 100°C. This type of heat engine is(a) ideal(b) irreversible(c) impossible(d) practical

Answered: A heat engine is supplied with…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A heat engine is operating on a Carnot cycle and has a thermal efficiency of 55 percent. The waste heat from this engine is rejected to a nearby lake at 60°C at a rate of 900 kJ/min. Determine the temperature of the source.
A Carnot heat engine receives 650 kJ of heat from a source of unknown temperature and rejects 250 kJ of it to a sink at 240C. Determine the thermal efficiency of the heat engine.
Q3/ A Carnot heat engine receives 655 kJ of heat from a source of unknown temperature and rejects 245 kJ of it to a sink at 22°C. Determine (a) the temperature of the source and (b) the thermal efficiency of the heat engine.
Calculate and plot the thermal efficiency of a completely reversible heat engine as a function of the source temperature up to 2000 R with the sink temperature fixed at 500 R.
A Carnot engine rejects 30% of absorbed heat to a sink at 30°C. The temperature of the heat source is 1. 100°C 2. 433°C 3. 737°C 4. 1010°C
The power required to drive the compressor in a Carnot refrigerator is 48 hp. It operates between -6°C and 39°C. Determine the coefficient of performance.
A solar energy based heat engine which recieves 90kJ of heat at 900C and rejects 70kJ of heat to the ambient at 200C is to be designed. Determine the thermal efficiency of the heat engine.
Quiz-ch5 A Carnot heat engine receives heat from a reservoir at 1200°C at a rate of 800 kJ/min and rejects the waste heat to the ambient air at 32°C. The entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at -7°C and transfers it to the same ambient air at 32°C. Determine (a) the maximum thermal efficiency of the heat engine, (b) the maximum power output of the heat engine (kJ/min), (c) the maximum COP of the refrigerator, (d) the maximum rate of heat removal from the refrigerated space (kJ/min). 1200 'C -7 °C 1000 KJ/min (HE) 32 °C
An engineer receives a schematic fora reversible heat engine with three reservoirs at the temperatures shown to the right. The heat engine produces 1800 kW work as it pulls 3200 kW of heat from the 600K reservoir. The engineer wonders if the schematic is drawn correctly (in other words, are the arrows going the correct directions?) To answer this question, (a) calculate the heat interactions of the HE with the other two reservoirs. (b)If necessary, draw an updated diagram with the correct directionalities indicating the rates of heat transfer.
Can you please help me understand this I know the clausius inequatilty but do i just get the difference in q divided by temperature i dont know what to do.
A heat engine operates between two reservoirs at 200°C and 20°C. One-half of the work output of the heat engine is used to drive a compressor of a refrigeration system, which is used to cool the chiller in a factory. (ii) The compressor is able to increase the temperature of the working fluid R134a from 0°C, x = 0.5 to 20°C, x = 1. Determine the COP of this refrigeration system, given mass flow rate of R-134a to be 0.01 kg/s.

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A heat engine is supplied with 2512kJ/min of heat at 650°C. Heat rejection with 900kJ/min takes place at 100°C. This type of heat engine is (a) ideal (b) irreversible (c) impossible (d) practical