Salient Energy Bio-Conversion Processes Limiting Gas Turbine Engine Performance & Efficiency
Download as PPTX, PDF3 likes1,606 views
The document discusses bio-conversion processes and their impact on gas turbine engine efficiency, detailing microbial actions that convert organic matter into energy. It highlights industry challenges, research barriers, and the need for predictive condition monitoring to mitigate issues like component failure and reduced performance. Next steps include developing an engine bio-fouling model to analyze the relationship between hydrocarbon loss, engine performance, and emissions.
Salient Energy Bio-Conversion Processes Limiting Gas Turbine Engine Performance & Efficiency
- 1. Salient Energy Bio-Conversion Processes Limiting Gas Turbine Engine Performance Efficiency Tosin Onabanjo*; Giuseppina Di Lorenzo School of Energy, Environmental and Agrifood (SEEA), Cranfield University 1
- 2. Outline 2 — Background on Bio-conversion — Industry Overview — Research Barriers — Next Steps in Predictive Condition Monitoring
- 3. Bio-conversion (1) 3 The conversion of organic matter, into a source of energy through the action of microorganisms. Organic Matter Carbon Source Energy Definition
- 4. Bio-conversion (2) 4 microbial fuel cell anaerobic digestion fermentation bioremediation Concept of Bioenergy
- 5. Bio-conversion (3) 5 Hydrocarbon loss Sludge accumulation Induced corrosion Physiological changes Chemical changes Observed effects
- 6. Bio-conversion (4) 6 Component Failure Injectors, Filters, Fuel line, Wall Liner, Blade fouling Reduced Engine Performance Increased smoke tendency and particulate emissions
- 7. Industry Overview (1) 7 History
- 8. Industry Overview (2) 8 History to Future
- 9. Industry Overview (3) 9 Microbes: bacteria, mould, yeasts Mechanisms of contamination: rust, dust, soil, air, water, fuel Mechanisms of hydrocarbon degradation: aerobic, anaerobic, acid-producing, symbiotic Successes & Challenges
- 10. Industry Overview (4) 10 Ecology: fuel-water interphase Bio-surfactant, Biofilms TEA: O2, NO3, SO4, CO2 Growth factors: pH, Temp., Water, nutrients, enhancer/inhibitor By-products: sludge, sulphide, water, CO2 Biocides Successes & Challenges
- 11. Industry Overview (5) 11 Good Handling Practices Biocide Application Water Elimination Routine Inspection Successes & Challenges
- 12. Research Barriers (1) 12 How much degradation occurs during an opportunistic window of growth Opportunistic gap Water consistent in fuels Complex microbial systems Asymptomatic reactions
- 13. Research Barriers (2) 13 Hydrocarbon loss –degree? Sludge accumulation – microbial % and chemical %? Induced corrosion – microbial % Physiological changes – Sig.? Chemical changes – Sig.?
- 14. Research Barriers (3) 14 Component Failure Injectors, Filters, Fuel line, Wall Liner, Blade fouling Reduced Engine Performance Increased smoke tendency and particulate emissions Metal Corrosion Degree?
- 15. Research Barriers (4) 15 Root Cause Analysis Microbes identification Detection (simple to complex) Control including biocides x Reactive x Symptomatic x Cost intensive x Cause-effect relationship Traditional approach Microbiological Examinations Engineering x Misdiagnosis x Non-detection x Parallel research x Underestimation/Overestimation x Drug resistance
- 16. Next Steps for Predictive Condition Monitoring (1) 16 Systematic Analysis Root cause analysis –advance microbiology techniques Modelling: fuel chemical kinetics, microbial kinetics, abiotic factors, bio-energetics Gross observation –representative sampling Engineering x Proactive x Reduce downtime x Reduced associated cost x Increased understanding x Predictive maintenance and condition monitoring x Reduced pressure on microbial evolution Optimized approach
- 17. Next Steps for Predictive Condition Monitoring (2) 17 First time development of an engine bio-fouling model • Estimate hydrocarbon loss • Relate to engine performance and emission analysis PowerEnergy2015-49657 July 01, 2015 01:00 PM - 02:45 PM Application of BIO-fAEG, a biofouling assessment model in gas turbines … Thank You
Editor's Notes
- #6: When such process occur in a fuel tank; it could to lead to other reactions such as hydrocarbon loss; where part of the fuel component is converted to energy for the microbial, but this means that the energy available for combustion is reduced
- #7: Discoloration Pungent smell Haziness
- #8: When such process occur in a fuel tank; it could to lead to other reactions such as hydrocarbon loss; where part of the fuel component is converted to energy for the microbial, but this means that the energy available for combustion is reduced
- #9: When such process occur in a fuel tank; it could to lead to other reactions such as hydrocarbon loss; where part of the fuel component is converted to energy for the microbial, but this means that the energy available for combustion is reduced
- #10: When such process occur in a fuel tank; it could to lead to other reactions such as hydrocarbon loss; where part of the fuel component is converted to energy for the microbial, but this means that the energy available for combustion is reduced
- #11: When such process occur in a fuel tank; it could to lead to other reactions such as hydrocarbon loss; where part of the fuel component is converted to energy for the microbial, but this means that the energy available for combustion is reduced
- #12: Not often the case: opportunistic window, practise not often followed; microbes constant evolving
- #13: Not often the case: opportunistic window, practise not often followed; microbes constant evolving
- #14: When such process occur in a fuel tank; it could to lead to other reactions such as hydrocarbon loss; where part of the fuel component is converted to energy for the microbial, but this means that the energy available for combustion is reduced
- #15: Discoloration Pungent smell Haziness