scholarly journals APPLICATION OF PYROLYSIS GAS AS A FUEL FOR GAS TURBINE ENGINES FOR ELECTRICITY GENERATION

2021 ◽  
Vol 88 (3) ◽  
pp. 30-35
Author(s):  
Ivan Obodovskyi ◽  
Viacheslav Morozov
Keyword(s):  
Gas Turbine ◽  
Power Plants ◽  
Internal Combustion Engines ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Ground Vehicles ◽  
Pyrolysis Gas ◽  
Technology Application ◽  
Marine Engines ◽  
Xix Century

Purpose: The purpose of this article is to show the opportunities of application of the pyrolysis gas as a fuel for gas turbine power plants based on decommissioned gas turbine engines, including those from aircraft – either turboprop or turboshaft, or both, and also those used on ground vehicles such as tanks and marine engines as well. Methods: The article describes the technology of pyrolysis of different materials for obtaining pyrolysis gas and its further application as a fuel for internal combustion engines was developed in the end of XIX century and was successfully applied for automobile, marine and railway locomotive piston engines till the mid ХХ century when large oil reservoirs were discovered all around the World. Results: the current research not only proves that there exists an economic benefit of application of pyrolysis technology even at nowadays, but also an ecological one, allowing getting rid of garbage Discussion: The proposed examples of successful pyrolysis technology application can be a good basis for further research of transferring modern engines to the pyrolysis gas fuels.

scholarly journals Real Time Neutron Radiography Applications in Gas Turbine and Internal Combustion Engine Technology

1988 ◽  
Author(s):  
John T. Lindsay ◽  
C. W. Kauffman
Keyword(s):  
Real Time ◽  
Gas Turbine ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Neutron Radiography ◽  
Three Dimensional ◽  
Basic Research ◽  
Internal Combustion ◽  
Turbine Engines ◽  
Gas Turbine Engines

Real Time Neutron Radiography (RTNR) is rapidly becoming a valuable tool for nondestructive testing and basic research with a wide variety of applications in the field of engine technology. The Phoenix Memorial Laboratory (PML) at the University of Michigan has developed a RTNR facility and has been using this facility to study several phenomena that have direct application to internal combustion and gas turbine engines. These phenomena include; 1) the study of coking and debris deposition in several gas turbine nozzles (including the JT8D), 2) the study of lubrication problems in operating standard internal combustion engines and in operating automatic transmissions (1, 2, 3), 3) the location of lubrication blockage and subsequent imaging of the improvement obtained from design changes, 4) the imaging of sprays inside metallic structures in both a two-dimensional, standard radiographic manner (4, 5) and in a computer reconstructed, three-dimensional, tomographic manner (2, 3), and 5) the imaging of the fuel spray from an injector in a single cylinder diesel engine while the engine is operating. This paper will show via slides and real time video, the above applications of RTNR as well as other applications not directly related to gas turbine engines.

scholarly journals Automated Virtual Testing Rig Incorporating Multi-level Models of Gas Turbine Engines

2018 ◽  
Vol 220 ◽  
pp. 03001
Author(s):  
Andrey Tkachenko ◽  
Ilia Krupenich ◽  
Evgeny Filinov ◽  
Yaroslav Ostapyuk
Keyword(s):  
Gas Turbine ◽  
Power Plants ◽  
Educational Process ◽  
Turbine Engines ◽  
Experimental Investigations ◽  
Gas Turbine Engines ◽  
Engine Operation ◽  
Virtual Testing ◽  
Research Activities ◽  
Multi Level

This article describes the multi-level approach to developing the virtual testing rig of gas turbine engines and power plants. The described virtual rig is developed on the basis of computer-aided system of thermogasdynamic calculations and analysis ASTRA, developed at Samara National Research University. Existing testing rig is widely used in educational process to supply the students’ research activities with the information on engine operation in a variety of ambient and flight conditions during transients. An approach to upgrading the virtual testing rig is proposed. The described modifications would provide the capabilities to solve more complex research tasks, including investigation of influence of geometry of engine elements on the engine characteristics, multidisciplinary investigations, identification of engine models using the results of experimental investigations and identification of sources of engine deficiencies during the development phase of engine designing.

Predictive Compressor Wash Optimization for Economic Operation of Gas Turbine

2018 ◽  
Vol 140 (12) ◽  
Author(s):  
Houman Hanachi ◽  
Jie Liu ◽  
Ping Ding ◽  
Il Yong Kim ◽  
Chris K. Mechefske
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Power Plants ◽  
Economic Losses ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Considerable Saving ◽  
Service Period ◽  
Power Deficit

Gas turbine engines (GTEs) are widely used for power generation, ranging from stationary power plants to airplane propulsion systems. Compressor fouling is the dominant degradation mode in gas turbines that leads to economic losses due to power deficit and extra fuel consumption. Washing of the compressor removes the fouling matter and retrieves the performance, while causing a variety of costs including loss of production during service time. In this paper, the effect of fouling and washing on the revenue of the power plant is studied, and a general solution for the optimum time between washes of the compressor under variable fouling rates and demand power is presented and analyzed. The framework calculates the savings achievable with optimization of time between washes during a service period. The methodology is utilized to optimize total costs of fouling and washing and analyze the effects and sensitivities to different technical and economic factors. As a case study, it is applied to a sample set of cumulative gas turbine operating data for a time-between-overhauls and the potential saving has been estimated. The results show considerable saving potential through optimization of time between washes.

scholarly journals Generalized High Speed Simulation of Gas Turbine Engines

1990 ◽  
Author(s):  
Nanahisa Sugiyama
Keyword(s):  
Real Time ◽  
Gas Turbine ◽  
Gas Turbines ◽  
High Speed ◽  
Power Plants ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Jet Engines ◽  
Industrial Gas Turbine ◽  
High Degree

This paper describes a real-time or faster-than-real-time simulation of gas turbine engines, using an ultra high speed, multi-processor digital computer, designated the AD100. It is shown that the frame time is reduced significantly without any loss of fidelity of a simulation. The simulation program is aimed at a high degree of flexibility to allow changes in engine configuration. This makes it possible to simulate various types of gas turbine engines, including jet engines, gas turbines for vehicles and power plants, in real-time. Some simulation results for an intercooled-reheat type industrial gas turbine are shown.

Digital twin technology application while gas turbine engines development

2021 ◽  
Vol 28 (3) ◽  
pp. 139-145
Author(s):  
Svetlana Koval' ◽  
Artem Badernikov ◽  
Yury Shmotin ◽  
Kirill Pyatunin
Keyword(s):  
Gas Turbine ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Technology Application ◽  
Digital Twin

Gas turbine engines used as power units for traction rolling stock fueled by liquefied natural gas

2021 ◽  
pp. 55-65
Author(s):  
Yuri V. BABKOV ◽  
◽  
Denis I. PROKHOR ◽  
Dmitry V. KOTYAEV ◽  
Nikolay V. GRACHEV ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Power Plants ◽  
Normal Operation ◽  
Rolling Stock ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Equipment Operation ◽  
Advantages And Disadvantages ◽  
Technical Requirements ◽  
Loading Modes

Objective: To determine the possibility and directions for increasing the efficiency of gas turbine traction based on the experience of using gas turbine engines as power plants in railway transport. Methods: The practice of operating gas engine locomotives in trial runs and normal operation with trains of 9 thousand tons is used. Records of onboard systems for fixing the parameters of locomo-tive equipment operation are taken into account. Results: Comparison of the application experi-ence of gas turbine engines in various branches of the national economy are carried out. The fea-tures of using gas turbine engines in unstable loading modes are analyzed. Their effectiveness is characte¬rized and directions for its further increase are established. The values of the maintenance labor intensity of gas turbine locomotives and diesel locomotives are revealed. The actual load of gas turbine locomotive equipment at all traction modes has been determined. Practical im-portance: Significant differences in maintenance of power units of gas turbine locomotives and die-sel locomotives have been determined. The performed analysis of the operation results allowed to determine and prove in practice the advantages and disadvantages of convertible aircraft gas tur-bine engines, to establish requirements for them in order to increase the efficiency of using gas turbine locomotives and to develop a draft of technical requirements for a power unit for the main gas turbine locomotive GT1h.

Foil Air Bearings Cleared to Land

1998 ◽  
Vol 120 (07) ◽  
pp. 78-80 ◽  
Author(s):  
Giri L. Agrawal
Keyword(s):  
Gas Turbine ◽  
General Aviation ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Air Bearings ◽  
Ground Vehicles ◽  
Foil Bearings ◽  
Cooling Flow ◽  
Auxiliary Power ◽  
Auxiliary Power Units

This article explores use of foil air bearings in land-based turbomachinery. A machine with foil air bearings is more reliable than one with rolling element bearings because it requires fewer parts to support the rotative assembly and needs no lubrication. Foil air bearings can handle severe environmental conditions such as the ingestion of sand and dust. A reversed pilot design at the cooling flow inlet prevents large particles from entering the bearing's flow path, and smaller particles are continually flushed out of the bearing by the cooling flow. Many applications of foil air/gas bearings other than air cycle machines have been built and successfully tested, but nothing appears to be currently in production. Foil bearings have strong potential in several applications. Among these are small general aviation gas turbine engines; oil-free cryogenic turboexpanders for gas separation plants; auxiliary power units for various aerospace and ground vehicles; and, taking advantage of automated manufacturing methods, automotive gas turbine engines, vapor-cycle centrifugal compressors, and commercial air/gas compressors.

scholarly journals Analysis and directions of technological and organization problem updating in gas turbine aircraft engine repair

2020 ◽  
Vol 2020 (8) ◽  
pp. 42-48
Author(s):  
Vyacheslav Bezyazychnyy ◽  
Andrey Smirnov
Keyword(s):  
Gas Turbine ◽  
New Technologies ◽  
Aircraft Engine ◽  
Technical State ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Turbine Engine ◽  
Technology Application ◽  
Organization Problem ◽  
Repair Techniques

There are presented technological (requirements in new technologies for repair of gas turbine engines (GTE) repaired according to a technical state, growing requirements on reliability, high cost of repair, a limited access to new technologies) and organization (absence of repair localization, high competition etc.) problems of aircraft gas turbine engine repair. The direction for updating: development of new repair technologies at the transition to the concept of repair on a technical state; module technology application; repair production localization; creation of flexible repair techniques etc. is considered.

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