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Florian Zurbriggen, Richard Hutter and Christopher Onder
This paper investigates the combustion phasing control of natural gas-diesel engines. In this study, the combustion phasing is influenced by manipulating the start and the duration of the diesel injection. Instead of using both degrees of freedom to cont...
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Chang-Min Lee, Byung-Gun Jung and Jae-Hyuk Choi
The International Maritime Organization strives to improve the atmospheric environment in oceans and ports by regulating ship emissions of air pollutants and promoting energy efficiency. This study deals with the prediction of eco-friendly combustion in ...
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Dawid Tatarynow, Rafal Longwic, Przemyslaw Sander, Lukasz Zielinski, Michal Trojgo, Wincenty Lotko and Pawel Lonkwic
This article discusses current testing methods for motor vehicle engines. Traction engines have so far been tested, for example, according to WLTP (Worldwide Harmonized Light Vehicle Test Procedure) driving tests, but due to the ?VW?gate? incident, these...
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Yuze Sun, Dan Zhao and Xiaowei Zhu
In the present work, 3D Unsteady Reynolds-Averaged Navier-Stokes (URANS) simulations are performed to investigate the generation and mitigation mechanism of combustion-sustained thermoacoustic instabilities in a modelled swirl combustor. The effects of (...
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Fabrice Giuliani, Markus Stütz, Nina Paulitsch and Lukas Andracher
A siren is a robust fast-valve that generates effective flow pulsations and powerful noise levels under well-controlled conditions. It operates under the inlet flow conditions of a gas turbine combustor. Its principle is based on a sonic air jet periodic...
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Fabrice Giuliani, Lukas Andracher, Vanessa Moosbrugger, Nina Paulitsch and Andrea Hofer
The need for better combustion monitoring in gas turbines has become more acute with the latest technical requirements, standards, and policies in terms of safety, environment, efficiency, operation flexibility, and operation costs. Combustion Bay One e....
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Wonjeong Hyun, Jina Kim, Heesang Chae and Changjin Lee
The occurrence of low-frequency instability (LFI) appears to be related to multiple interactions among many complex physical processes, such as vortex shedding, boundary-layer oscillation, and additional combustion in the post-combustion chamber. In this...
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Artur Zaporozhets
Pág. 241 - 248
The method of fuel quality control is considered, which is based on the using of the oxygen sensor (without sensors of incomplete fuel combustion products). An algorithm for the electric drive of a fan is proposed, which is based on a step changing in th...
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Jianguo Wang, Philip Rubini, Qin Qin and Brian Houston
Passive control devices for combustion instability and combustion noise in gas turbine engines.
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Jianguo Wang, Philip Rubini and Qin Qin
Passive control devices for combustion noise reduction in gas turbine engines and/or other general flow noises.
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Aleksandr Vovchenko,Larysa Demydenko,Sergey Kozyrev
Pág. 29 - 38
Studying the high-voltage electrochemical explosion as a control object has established a significant impact exerted by the modes of controlled energy input into a discharge channel on the efficiency of exothermal energy conversion. Dependence has been d...
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Ibis Cruz Virosa,Miriam L. Filgueiras Sainz de Rozas,Luis Sorinas Gonzáles,Juan José Cabello Eras,Lissy Fernández Pérez
Pág. 195 - 206
En este artículo, se propone un procedimiento para la gestión comparada de los riesgos internos y externos en el control de las emisiones atmosféricas provocadas por los generadores de vapor pertenecientes a los sectores de servicios, ubicados en diferen...
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Sokratis Stoumpos, Gerasimos Theotokatos, Christoforos Mavrelos and Evangelos Boulougouris
This study aims at developing an integrated model that combines detailed engine thermodynamic modelling and the control system functional modelling paving the way towards the development of high-fidelity digital twins. To sufficiently represent the combu...
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Long Chen, Diju Gao and Qimeng Xue
Reducing energy consumption and carbon emissions from ships is a major concern. The development of hybrid technologies offers a new direction for the rational distribution of energy. Therefore, this paper establishes a torque model for internal combustio...
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Ambareen Khan, Parvathy Rajendran and Junior Sarjit Singh Sidhu
In the present world, passive control finds application in various areas like flow over blunt projectiles, missiles, supersonic parallel diffusers (for cruise correction), the engine of jets, static testbeds of rockets, the ports of internal combustion e...
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Nikolaos P. Kyrtatos
Pág. 1581 - 1590
This paper provides an overview of the HERCULES R&D programme on large engine technologies. The main issues in marine engine design and operation have always been Reliability, Fuel economy and (since 2000) Emissions. With the ongoing R&D efforts, the iss...
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Saeed Bahrami, Ali Ghaffari and Marcus Thern
Single-shaft gas turbines are sensitive to frequency changes which might affect the grid stability during large frequency drops. This paper presents a new control system that uses steam injection as an auxiliary input to improve the transient performance...
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Ping Zheng, Chengde Tong, Jingang Bai, Yi Sui, Zhiyi Song and Fan Wu
The radial-radial flux compound-structure permanent-magnet synchronous machine (CS-PMSM), integrated by two concentrically arranged permanent-magnet electric machines, is an electromagnetic power-splitting device for hybrid electric vehicles (HEVs). As t...
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Dongfeng Yan, Zehang Zhao, Anchen Song, Fengming Li, Lu Ye, Ganchao Zhao and Shan Ma
The fluidic pintle nozzle, a new method to control the thrust of a solid rocket motor, has been proposed in recent years by combining the pintle with the aerodynamic throat (fluidic throat). The study of static characteristics has proved that it has a re...
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Federico Ricci, Luca Petrucci, Francesco Mariani and Carlo Nazareno Grimaldi
The control of internal combustion engines is becoming increasingly challenging to the customer?s requirements for growing performance and ever-stringent emission regulations. Therefore, significant computational efforts are required to manage the large ...
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