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    • "The regenerator effectiveness is a parameter that gauges the departure of an actual regenerator from such an ideal regenerator. The regenerator efficiency can be obtain by Eq. (17) [15] "

    Full-text · Dataset · Oct 2014
  • Source
    • "The regenerator effectiveness is a parameter that gauges the departure of an actual regenerator from such an ideal regenerator. The regenerator efficiency can be obtain by Eq. (17) [15] "

    Full-text · Dataset · Oct 2014
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    • "Kurt et al. [1] and Rahman et al. [2] have performed energy analysis of simple gas turbine cycles and reported that their performance is greatly dependent on operating parameters like compressor inlet temperature (CIT), turbine inlet temperature (TIT), pressure ratio (PR), air-to-fuel-ratio and isentropic efficiencies of air compressor and gas turbine. Ibrahim et al. [3] and Rahman [4] have performed energy analysis to study the effects of such operating parameters on the performance of gas turbine based combined cycle power plants with the use of different gas turbine configurations, like single-and two-shaft, intercool and regenerative cycles. Mahmood and Mahdi [5] have demonstrated that the compressor inlet air cooling can be achieved with the use of a turbo-expander more economically as compare to other conventional methods. "
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    ABSTRACT: In this paper, thermo-environmental, economic and regression analyses of simple and regenerative gas turbine cycles are exhibited. Firstly, thermodynamic models for both cycles are defined; exergy destruction rate of different components is determined and parametric study is carried out to investigate the effects of compressor inlet temperature, turbine inlet temperature and compressor pressure ratio on the parameters that measure cycles’ performance, environmental impact and costs. Subsequently, multiple polynomial regression (MPR) models are developed to correlate important response variables with predictor variables and finally optimization is performed for optimal operating conditions. The results of parametric study have shown a significant impact of operating parameters on the performance parameters, environmental impact and costs. According to exergy analysis, the combustion chamber and exhaust stack are two major sites where largest exergy destruction/losses occur. Also, the total exergy destruction in the regenerative cycle is relatively lower; thereby resulted in a higher exergy efficiency of the cycle. The MPR models are also appeared as good estimator of the response variables since appended with very high R2 values. Finally, these models are used to determine the optimal operating parameters, which maximize the cycles’ performance and minimize CO2 emissions and costs.
    Full-text · Article · Dec 2013 · Energy Conversion and Management
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