Exergoenvironmental Analysis of Medium-Size Turboprop Engine (m-TPE)-Based Life Cycle Analysis (LCA) and Exergy

The exergoenvironmental analysis of a medium-size turboprop engine (m-TPE) is researched based on Life Cycle Assessment (LCA) and exergy analysis for maximum take-off power. The m-TPE has the 29.235 mPts/h component-related environmental impact rate, while the gas turbine section between the components has the maximum component-related environmental impact rate with 9.144 mPts/h. The environmental impact rate of jet fuel is determined as 125,280 mPts/h, while the m-TPE consumes 522 kg/h jet fuel in maximum operation mode. Maximum specific environmental impact value is estimated as 12296.41 mPts/GJ in air compressor outlet, while the minimum specific environmental impact is found to be 5224.91 mPts/GJ for the fuel inlet stream of combustion chamber. Additionally, air compressor and combustion chamber units have highest waste exergy environmental impact rates with 9546.94 mPts/h and 56,302 mPts/h, respectively. The waste exergy rates dominate the environmental impacts for m-TPE and its all components excepting gas turbine and power turbine units.