Recent content by willgoat

  1. W

    Why Use Cooling Air in Gas Turbines Instead of Lowering Fuel/Air Ratios?

    Increasing turbine inlet temperature (ie temperature of gases leaving combuster) will increase specific power of a gas turbine, so you get more power out of the same size machine with fixed mass flow rate. This is about the operation of the whole gas turbine, not the efficiency of the combustor...
  2. W

    Why Use Cooling Air in Gas Turbines Instead of Lowering Fuel/Air Ratios?

    Cooling air is required to cool components within the gas turbines (combustor wall, nozzles and rotors), any % of cooling air taken compressor will reduce the amount available to do work, so obviously we will want the minimum amount possible. I am thinking that you approached the problem from...
  3. W

    Pressure at exit plane of pipe: static or total

    Hi all, hope i can get some opinions here on a topic discussed at work. Flow is exiting a pipe from a chamber at P_in to outside/atmospheric with pressure patm, at say low mach number 0.05. At the exact exit plane of the pipe, is the total pressure equal to the patm, or will it instead be...
Back
Top