Exhaust gases leave an internal combustion engine at 800deg C and 1 atmosphere, after having done 1050 kJ work per kg of gas in the engine (Cp of gas 1.1 kJ/kg K). The temperature of surrounding is 30 degrees C (i) How much available energy per kg of gas is lost by throwing away the exhaust Gases? (ii) What is the ratio of the lost available energy to the engine work ?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Exhaust gases leave an internal combustion engine
at 800deg C and 1 atmosphere, after having done
1050 kJ work per kg of gas in the engine (Cp of gas
1.1 kJ/kg K). The temperature of surrounding is 30
degrees C
(i)
How much available energy per kg of gas is
lost by throwing away the exhaust Gases?
(ii)
What is the ratio of the lost available
energy to the engine work ?
Transcribed Image Text:Exhaust gases leave an internal combustion engine at 800deg C and 1 atmosphere, after having done 1050 kJ work per kg of gas in the engine (Cp of gas 1.1 kJ/kg K). The temperature of surrounding is 30 degrees C (i) How much available energy per kg of gas is lost by throwing away the exhaust Gases? (ii) What is the ratio of the lost available energy to the engine work ?
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