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I am trying to model the Brayton cycle in a gas turbine that is used for electricity generation.

My main aim is to be able to fully power the x amount of daily electricity load of a building using this machine.

In order to do this, is it correct to do a backwards model and find what specifications my generator must have that meet my power demand and match that with the work outout of the gas turbine.

If so must I then equate the work required by the generator (using a product specification) with the work done by the turbine (include the losses as well). Can I then equate this with the work done by the compressor (and include the efficiencies) - I need to show what my work done and efficiencies are at each point of the cycle.

I think I will then be able to find the optimum size of the gas turbine required to generate the torque required to rotate the electricity generator???

Please let me know if my thinking is correct and if anybody can post the equations for work done and efficiency at each point of the cycle please.

Thanks