Performance Analysis of an Ammonia-Fueled Micro Gas Turbine

Micro gas turbines fit perfectly with the energy roadmap to 2050: on-site, small scale power generation, combined heat recovery from exhaust gas, offers an opportunity deploy primary saving and pollutant emission reduction. Moreover, their flexibility enables fuel switching natural (NG) carbon-free fuels such as hydrogen ammonia. This study aims explore potential of direct combustion ammonia in a micro turbine (MGT), thermodynamic point view. A modeling procedure was developed simulate behavior 100 kW MGT operating at full part-load. After validation NG fuel, increasing fraction fed combustor predict performance variations terms electric, thermal total efficiency, well composition, for load range between 40% 100%. Additional relevant details, related interaction compressor single-shaft arrangement, were discussed through maps. Full replacement found reduce electric efficiency by about 0.5 percentage points (pp), whatever output, consequent improvement recovery. Thus, is maintained high level, values ranging 74.5% 79.1% over investigated range. The benefit zero CO2 emissions can be achieved provided that compressor–turbine matching adjusted compensate reduction calorific value: rated power, when largest input required, flow rates air flue decrease 4.3% 2.8%, respectively, increase Brayton cycle pressure ratio 2%.