Modelling and Analysis of Gas Turbine Performance Deterioration

Lakshminarasimha, A. N.; Boyce, Meherwan P.; Meher-Homji, Cyrus B.

doi:10.1115/92-gt-395

Cited by 21 publications

(30 citation statements)

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“…4. Flue gases coming out of gas turbine at lower pressure and high temperature are passed through HRSG for waste heat recovery (Lakshminarasimha et al 1994). 5.…”

Section: Gas Turbine Systemmentioning

confidence: 99%

Evaluation of gas turbine power plant efficiency using graph theoretic approach

Dev

Attri

2016

Int J Syst Assur Eng Manag

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This paper presents a methodology based on graph theoretic approach (GTA) to design a new gas turbine power plant (GTPP), upgrading of existing plant and evaluation of two real life operating gas turbine power plants. Different combinations may be recommended by a manufacturer to an organization for selecting or improving the thermal efficiency of a power plant. This paper recognizes various design parameters affecting the gas turbine power plant efficiency. All these parameters are interacting with each other by different amounts. An attempt has been made to develop a mathematical model of GTPP from these interacting parameters using GTA. A GTPP efficiency index is proposed which assesses the influence power of these parameters.

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“…4. Flue gases coming out of gas turbine at lower pressure and high temperature are passed through HRSG for waste heat recovery (Lakshminarasimha et al 1994). 5.…”

Section: Gas Turbine Systemmentioning

confidence: 99%

Evaluation of gas turbine power plant efficiency using graph theoretic approach

Dev

Attri

2016

Int J Syst Assur Eng Manag

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“…The thermodynamic losses in compressor are incorporated in the model by considering polytropic efficiency in place of isentropic efficiency. The main gas path components of the gas turbine cycle, namely compressor and turbine, will degrade with engine use, which then results into engine performance deterioration [22][23][24][25]. Design Very high 8 9…”

Section: Compressor Systemmentioning

confidence: 99%

GTA modeling of combined cycle power plant efficiency analysis

Dev

Samsher

Kachhwaha

et al. 2015

Ain Shams Engineering Journal

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A methodology based upon graph theory and matrix method is developed for the efficiency analysis of a Combined Cycle Power Plant (CCPP) with a view that a person at managerial level may decide regarding efficiency improvement without in-depth knowledge of conventional methods of thermal efficiency evaluation. For the analysis, CCPP is divided into six sub-systems and interdependency is identified to develop system structure digraph. Sub-system efficiencies are further dependent on numerous parameters which are interdependent. Therefore, methodology developed at system level is extended to sub-system level. Performance parameter digraph is developed at sub-system level by intriguing inheritance and interdependencies of parameters. Digraph is converted into matrix form and permanent function is developed. The value of permanent function in real time situation is compared with design condition to obtain Relative Efficiency Index (REI) at sub-system level. REI at sub-system level is guidance for deviation of efficiency index from its design value.Ó 2014 Production and hosting by Elsevier B.V. on behalf of Ain Shams University.

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“…Up to now, extensive studies [38][39][40][41] have been conducted in the field of deterioration pattern extraction for gas turbines. In this article, the scenario presented in Refs.…”

Section: Simulation Of Performance Deteriorationmentioning

confidence: 99%