Návrh na zvýšení účinnosti spalovací mikroturbíny pro kogenerační jednotku

Abstract

The aim of the thesis is to propose a solution for increasing the efficiency of the cogeneration unit with the gas micro-turbine. I changed the input parameters and design and watched how the unit's electrical and overall efficiency changes. The highest electrical efficiency had solution with split compression with the intercooling, split expansion with the intercooling of the flue gas and regeneration of the flue gas heat using the heat from the intercooler, with the pressure ratio of 4 and the flue gas temperature 1200°C. With these parameters I have reached an electrical efficiency of 55%. The highest overall efficiency is 82%. I have reached this value with solution with split air compression with intercooling and heat recovery from intercooler and flue gas waste heat. The results tell us that there is a great potential for cogeneration units with gas micro-turbines, and they can speak to the Czech Republic's energy sector in the future.