Thermoeconomic, Sustainability and Environmental Damage Cost Analysis of Air Cooled CT7-7A Turboprop Engine

Paper #:
  • 2018-01-0774

Published:
  • 2018-04-03
Abstract:
The aim of this study is to investigate the overall performance (exergetic, exergoeconomic and exergoenvironmental) of CT7-7A turboprop engine manufactured by General Electric Aviation (GE Aviation) and currently used to power CN-235 a medium range transport aircraft. The investigation has been carried out using the thermoeconomic, sustainability and environmental damage cost analysis methods. The adopted turboprop engine has also been investigated under varying operating conditions (compressor pressure ratio and turbine inlet temperature) to observe the behaviour of various performance parameters as well as cost parameters of engine. Due to ever increasing demand in air transport systems focus has been on developing efficient and sustainable systems with lowest possible cost. In order to reduce cost & environmental effects of engine and same time to acquire higher performance it is necessary to understand the mechanism that can offer improvements in the engine operating and design parameters so that higher performance can be obtained. Exergetic sustainability parameters such as exergetic efficiency, exergy loss and destruction ratio, environmental damage cost, sustainability index and sustainability cost index play an important role on choice of suitable aircraft engine for operation. The methodology includes energy, exergy and cost balance equations and sustainability index for component-wise modelling of whole system. The presented work analyses CT7-7A engine from all three (thermoeconomic, sustainability and environmental analysis) perspectives
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