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Determine the thermal efficiency of steam turbine

Assignment Help Mechanical Engineering
Reference no: EM13993023

Question 1:

In a closed system 0.3 kg of gas at 373 K is expanded isothermally and reversibly from 1MPa pressure to 200 kPa. Given that Cv = 718 j/kg K and R = 287 J/kg K

Determine

(i) The work done

(ii) State the energy transfer within this isothermal process explaining your answer.

(i)
p1 = 1MPa
p2 = 200kPa
V1 = 0.3 kg
V2 = ?

Question 2:

Determine the thermal efficiency of a 60 MW output steam turbine supplied with 100 bar and 400oC steam. The steam exits turbine at 0.07 bar and dryness fraction 0.73. The flow rate of the steam is 45 kg/s.

Verified Expert

This is an assignment about laws of thermodynamics for mechanical engineering. Here based on thermodynamic laws initial volume, final volume has calculated. Then from those parameter work done has calculated. Efficiency is also calculated. In one problem, system is isothermal process.

Reference no: EM13993023

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