Advanced fuels for gas turbines: Fuel system corrosion, hot path deposit formation and emissions. (1st October 2016)

• Record Type: Journal Article
• Authors: Seljak, Tine; Širok, Brane; Katrašnik, Tomaž
• Is Part Of: Energy conversion and management. Volume 125(2016)
• Page Start: 40
• Page End: 50
• Publication Date: 2016-10-01
• Subjects: Micro gas turbine -- Advanced fuel -- Corrosion -- Deposits -- Emissions; Direct energy conversion -- Periodicals; Energy storage -- Periodicals; Energy transfer -- Periodicals; Énergie -- Conversion directe -- Périodiques; Direct energy conversion; Periodicals; 621.3105
• DOI: 10.1016/j.enconman.2016.03.056
• Languages: English
• ISSNs: 0196-8904

Abstract

Highlights: Technical feasibility analysis of alternative fuels requires a holistic approach. Fuel, combustion, corrosion and component functionality are strongly related. Used approach defines design constraints for microturbines using alternative fuels. Abstract: To further expand the knowledge base on the use of innovative fuels in the micro gas turbines, this paper provides insight into interrelation between specific fuel properties and their impact on combustion and emission formation phenomena in micro gas turbines for stationary power generation as well as their impact on material corrosion and deposit formation. The objective of this study is to identify potential issues that can be related to specific fuel properties and to propose counter measures for achieving stable, durable, efficient and low emission operation of the micro gas turbine while utilizing advanced/innovative fuels. This is done by coupling combustion and emission formation analyses to analyses of material degradation and degradation of component functionality while interpreting them through fuel-specific properties. To ensure sufficiently broad range of fuel properties to demonstrate the applicability of the method, two different fuels with significantly different properties are analysed, i.e. tire pyrolysis oil and liquefied wood. It is shown that extent of required micro gas turbine adaptations strongly correlates with deviations of the fuel properties from those of the baseline fuel. Through the study, these adaptations are supported by in-depth analyses of impacts of fuel properties on different components, parameters and subsystems and their quantification. This holistic approach is further used to propose methodologies and innovative approaches for constraining a design space of micro gas turbine to successfully utilize wide spectra of alternative/innovative fuels.