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Old Nov 29th 2018, 07:05 AM   #1
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Working out Thrust of a Turbojet Engine

Air at 7 °C enters a turbojet engine at a rate of 20kg/s and at a velocity of 300m/s (relative to the engine). Air is heated in the combustion chamber at a rate 20,000 kJ/s and it leaves the engine at 427 °C. The enthalpy of air at inlet and outlet of the engine is 280.13 kJ/kg and 713.27 kJ/kg respectively. The thrust produced by the turbojet engine is?
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Old Nov 30th 2018, 01:27 AM   #2
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Please show us your attempt
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Work on:

General thermal systems


Micro-drop fluid mechanics
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Old Nov 30th 2018, 01:42 AM   #3
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Not only does some indication of an attempt to answer the question prove that you are not just too lazy to do your homework yourself,
and are trying to get someone else to do it for you,
It also give us a starting point so that we (lazy wotsits that we are) don't have to start from scratch.

I, for one, do not hold the techniques needed to solve your problem in instant recall memory
it would take me quite a while researching to find the particular calculations required.
However, if you show an attempt it is much easier to point out where you might be going wrong.

The easier you make our lives, the more likely you are to get a useful answer.
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