An earlier study demonstrated the theoretical potential of the concept of injecting methanol into a gas turbine compressor inlet as a means of increasing cycle thermal efficiency. To attain the full potential of such a system, continuous shifting vapour/liquid equilibrium is required which would pose formidable difficulties in practice due to the presence of liquid in the compressor blading. This study evaluates a more practicable configuration in which the alcohol is injected between stages of a multi-stage machine so that, due to the higher air temperatures, evaporation is complete before the mixture enters subsequent stages. Through a computer analysis, it is shown that this arrangement would retain most of the potential of the concept while greatly reducing the design and operating problems.
Gas Turbine Compressor Interstage Cooling Using Methanol
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Fortin, JAC, & Bardon, MF. "Gas Turbine Compressor Interstage Cooling Using Methanol." Proceedings of the ASME 1983 International Gas Turbine Conference and Exhibit. Volume 4: Heat Transfer; Electric Power. Phoenix, Arizona, USA. March 27–31, 1983. V004T10A009. ASME. https://doi.org/10.1115/83-GT-230
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