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Browsing by Author "Li, Yi-Guang"

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An adaptive model-based framework for prognostics of gas path faults in aircraft gas turbine engines

Alozie, Ogechukwu; Li, Yi-Guang; Wu, Xin; Shong, Xingchao; Ren, Wencheng (Prognostics and Health Management Society, 2019-03-25)

This paper presents an adaptive framework for prognostics in civil aero gas turbine engines, which incorporates both performance and degradation models, to predict the remaining useful life of the engine components that ...
Aero gas turbine flight performance estimation using engine gas path measurements

Li, Yi-Guang (AIAA, 2015-01-05)

Mature gas turbine performance simulation technology has been developed in the past decades and, therefore, gas turbine performance at different ambient and operating conditions can be well predicted if good thermodynamic ...
Aeroengine transient performance simulation integrated with generic heat soakage and tip clearance model

Li, Zhuojun; Li, Yi-Guang; Sampath, Suresh (Cambridge University Press, 2022-03-11)

The simulations and assessment of transient performance of gas turbine engines during the conceptual and preliminary design stage may be conducted ignoring heat soakage and tip clearance variations due to lack of detailed ...
Assessment of degradation equivalent operating time for aircraft gas turbine engines

Alozie, Ogechukwu; Li, Yi-Guang; Diakostefanis, Michail; Wu, Xin; Shong, Xingchao; Ren, Wencheng (Cambridge University Press, 2020-01-09)

This paper presents a novel method for quantifying the effect of ambient, environmental and operating conditions on the progression of degradation in aircraft gas turbines based on the measured engine and environmental ...
Development and application of a preliminary design methodology for modern low emissions aero combustors

Liu, Yize; Sun, Xiaoxiao; Sethi, Vishal; Li, Yi-Guang; Nalianda, Devaiah; Abbott, David; Gauthier, Pierre Q.; Xiao, Bairong; Wang, Lu (SAGE, 2020-04-23)

In this article, a preliminary design framework containing a detailed design methodology is developed for modern low emissions aero combustors. The inter-related design elements involving flow distribution, combustor sizing, ...
A dynamic performance diagnostic method applied to hydrogen powered aero engines operating under transient conditions

Chen, Yu-Zhi; Tsoutsanis, Elias; Xiang, Hen-Chao; Li, Yi-Guang; Zhao, Jun-Jie (Elsevier, 2022-04-26)

At present, aero engine fault diagnosis is mainly based on the steady-state condition at the cruise phase, and the gas path parameters in the entire flight process are not effectively used. At the same time, high quality ...
A hierarchical structure built on physical and data-based information for intelligent aero-engine gas path diagnostics

Zhao, Junjie; Li, Yi-Guang; Sampath, Suresh (Elsevier, 2022-12-23)

Future trends in engine health management (EHM) systems are information fusion, advanced analytical methods, and the concept of the Intelligent Engines. Machine Learning (ML)-based aero-engine gas path diagnostic methods ...
Integrated gas turbine system diagnostics: components and sensor faults quantification using artificial neural networks

Osigwe, Emmanuel O.; Li, Yi-Guang; Suresh, Sampath; Jombo, Gbanaibolou (International Society for Air Breathing Engines (ISABE), 2017-09-11)

The role of diagnostic systems in gas turbine operations has changed over the past years from a single support troubleshooting maintenance to a more proactive integrated diagnostic system. This has become so, because detecting ...
Investigation of aircraft engine performance utilizing various alternative fuels

Li, Yi-Guang; Khan, S. A.; Ismail, Ahmad Faris (IOP, 2019-10-24)

The airlines are subjected to the energy crisis and have raised environmental issues at the same time. Future engine technology advances could decrease the effect on the environment and energy consumption. Alternative ...
Modelling of a three-shaft high-bypass-ratio engine performance and emission prediction using hydrogen fuel

Wan Yahya, M. Z.; Azami, M. H.; Savill, Mark; Li, Yi-Guang; Khan, S.A; Warimani, Mahammad Salman (BEIE&SP, 2019-05-25)

The price of oil has seen an unprecedented increase and the resulting demand for oil, especially from the transportation industries. The pollution emits from the vehicle has affected human health and environmental problems ...
Modelling the performance and emission prediction of RB211 aero-gas turbine engine fuelled by Jatropha-based biofuel

Azami, Muhammad Hanafi; Noorazman, Zahid; Savill, Mark; Li, Yi-Guang; Hilmi, Mohd Razi (IOP Publishing: Conference Series / IOP Publishing, 2019-04-30)

Fossil fuel is one of the world vital energy resources. The development of transportation technologies increases the demand for petroleum derivative globally. Fossil fuel consumption produces emissions, which potentially ...
Non-linear model calibration for off-design performance prediction of gas turbines with experimental data

Tsoutsanis, Elias; Li, Yi-Guang; Pilidis, Pericles; Newby, Mike A. (Cambridge University Press, 2017-09-18)

One of the key challenges of the gas turbine community is to empower the condition based maintenance with simulation, diagnostic and prognostic tools which improve the reliability and availability of the engines. Within ...
Performance degradation and component deterioration degree estimation for a turboshaft engine [Chinese language]

Huang, Kai-Ming; Li, Yi-Guang; Zhang, Wei; Feng, Xing; Cai, Jiang-bing (Zhongguo Hangkong Xuehui,Chinese Society of Aeronautics and Astronautics, 2015-11-30)

To monitor the performance and health conditions of a turboshaft engine during an endurance test, an engine mathematical model was set up and adapted to its real performance by adjusting component maps using a multiple-point ...
Performance simulation of a parallel dual-pressure once-through steam generator

Chen, Yu-Zhi; Li, Yi-Guang; Newby, Mike A. (Elsevier, 2019-02-08)

The increasing demand for electricity and concern about global warming mean that electric power generation is required to be more efficient, cleaner, and more cost-effective. Combined-cycle power plants have gradually ...
Performance-based fault diagnosis of a gas turbine engine using an integrated support vector machine and artificial neural network method

Fentaye, Amare; Ul-Haq Gilani, Syed Ihtsham; Baheta, Aklilu Tesfamichael; Li, Yi-Guang (SAGE, 2018-11-18)

An effective and reliable gas path diagnostic method that could be used to detect, isolate, and identify gas turbine degradations is crucial in a gas turbine condition-based maintenance. In this paper, we proposed a new ...
Review of modern low emissions combustion technologies for aero gas turbine engines

Liu, Yize; Sun, Xiaoxiao; Sethi, Vishal; Nalianda, Devaiah; Li, Yi-Guang; Wang, Lu (Elsevier, 2017-09-12)

Pollutant emissions from aircraft in the vicinity of airports and at altitude are of great public concern due to their impact on environment and human health. The legislations aimed at limiting aircraft emissions have ...
Sliding mode control with system constraints for aircraft engines

Yang, Shu-Bo; Wang, Xi; Wang, Hao-Nan; Li, Yi-Guang (Elsevier, 2019-09-19)

This paper proposes a constraint-tolerant design with sliding mode strategy to improve the stability of aircraft engine control. To handle the difficulties associated with the high-frequency switching laws, merely attenuating ...
Techno-economic evaluation and optimization of CCGT power plant: a multi-criteria decision support system

Chen, Yu-Zhi; Li, Yi-Guang; Tsoutsanis, Elias; Newby, Mike A.; Zhao, Xu-Dong (Elsevier, 2021-04-19)

A key objective of the power generation industry is to achieve maximum economic benefit without over-consuming the life of power plants and over-maintaining its assets. From a CCGT power plant operator’s perspective, the ...
Thrust rebalance to extend engine time on-wing with consideration of engine degradation and creep life consumption

da Mota Chiavegatto, Rafael; Li, Yi-Guang (American Society of Mechanical Engineers (ASME), 2023-09-28)

Over the years, airlines have consistently attempted to lower their operational costs and improve aircraft availability by applying various technologies. Engine maintenance expenses are one of the most substantial costs ...

Browsing by Author "Li, Yi-Guang"

Browsing by Author "Li, Yi-Guang"

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