Analysis Of The Performance Of A Combustion Chamber Gas Turbine

Hazila , Nayan (2007) Analysis Of The Performance Of A Combustion Chamber Gas Turbine. Project Report. Melaka, Malaysia, UTeM. (Submitted)

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Abstract

In this study, Turbine Gas, ET794 is used as the model to analyze the performance in the combustion chamber. The combustion process is of critical importance in a gas turbine cycle. It is because in this process the chemical energy of the fuel is converted to heat energy, which is later converted into work by the turbine. Therefore losses incurred in the combustion process will have a direct effect to the thermal efficiency of the cycle. There are three zones of combustion process: a) primary zone to provide the necessary high temperature or rapid combustion, b) secondary zone to complete the combustion. For high combustion efficiency, this air must be injected carefully at the right points in the process, c) tertiary or dilution zone the remaining air is mixed with the products of combustion to cool then down to the temperature required at inlet to the turbine. The combustion of Liquid Petroleum Gas LPG with air is occurred in the combustor. Industrial combustion that produces steam or electric power represents a crucial facility for overall plant operations. To make the combustion more efficient, less emission (cleaner) and less prone to tube rupture problems, it is important to understand the combustion and thermal flow behaviors inside the combustion chamber. This study performs a detailed simulation of combustion and thermal flow behaviors. The simulations are conducted using the commercial eFD package FLUENT. The 3-D design using species transport equations are solved for the combustion model.

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