An ideal gas turbine (Brayton cycle) has a net power output of 100 kW. Theworking medium is air with T1=30°C, T3 = 750°C, ...
A gas turbine power plant operates with maximum temperature of 1500⁰C,while the ambient air temperature is 28⁰C. If specif...
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Gasturbines problems

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Transcript of "Gasturbines problems"

  1. 1. An ideal gas turbine (Brayton cycle) has a net power output of 100 kW. Theworking medium is air with T1=30°C, T3 = 750°C, and T4 = 300 °C.Determine (A) The compressor pressure ratio, (b) The compressor work (kj/kg), (c) The mass flow rate of air (kg/s) (d) The thermal efficiency.Solution:a)b)c)d)
  2. 2. A gas turbine power plant operates with maximum temperature of 1500⁰C,while the ambient air temperature is 28⁰C. If specific heat ratio is 1.4 andpressure ratio is 15, find the following: Turbine work Compressor work Power plant net output work Heat input Thermal efficiencyA gas turbine power plant with a pressure ratio of 20:1 consumes 6.2 kg/s of48MJ/kg methane. If specific heat ratio is 1.5 calculate the output power ofthis plant.

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