An Optical Sensor for Determination of Combustion Parameters in a Natural Gas Fuelled Spark Ignition Engine

Pendlebury, M A; Nwagboso, Christopher

doi:10.4271/960856

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…Nwagboso and Pendlebury [17][18][19][20] carried out extensive research on the use of optical sensors for determining different combustion parameters.…”

Section: Introductionmentioning

confidence: 99%

Design of combustion sensory based controller for natural gas engines

Nwagboso¹,

Pendlebury²,

Mukarram³

2003

Meas. Sci. Technol.

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Concern over the ever-increasing stringent emission requirements and rising fuel costs has resulted in closer examination of the control of combustion in internal combustion engines. Natural gas is becoming a viable alternative fuel source, diversifying the transport fuel base, and a fuel potentially offering efficiency and environmental pollution benefits, compared with conventional fuels. Although the potential benefits of the fuel are acknowledged, there are clearly identifiable shortcomings in the control technology applied to the fuel and ignition management system. This paper presents the design of a novel sensing scheme with a fibre optic sensory system capable of monitoring the combustion event in a natural gas engine with minimal invasiveness. The optical sensory system is compared with a pressure sensory signal and used to analyse mass fraction burn and heat release. An integrated ignition controller is presented that enables the ignition angle to be modified, based on the measured optical combustion signal, with a control technique to provide an optimal management of the engine performance.

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“…Nwagboso and Pendlebury [17][18][19][20] carried out extensive research on the use of optical sensors for determining different combustion parameters.…”

Section: Introductionmentioning

confidence: 99%

Design of combustion sensory based controller for natural gas engines

Nwagboso¹,

Pendlebury²,

Mukarram³

2003

Meas. Sci. Technol.

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Kinematics of fibre optics sensory systems for control of a natural gas engine

Nwagboso

Pendlebury

2001

Proceedings of the Institution of Mechanical Engineers, Part D:

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A bre optics combustion intensity detection sensor is developed for the purpose of monitoring and controlling natural gas engines. The sensory system, which is based on the detection of the intensity of the combustion event, is mounted on the top of the engine block. Prior to implementation of the detection system, the accurate kinematics of the sensor probe within the combustion chamber needs to be identi ed while taking account of the geometric complexity of the engine design. This requires the understanding of the kinematics of probe position within the spatial relations of the engine block geometry that is likely to give a good coverage of the combustion processes. This paper therefore presents a new model that was implemented on natural gas engines but could also be used for identifying the appropriate location within the combustion chamber of any modern engine. An application example using the model is presented. The model provides the ability to monitor completely the stages of combustion within the cycle-to-cycle operation of the engine and use the signal thereof for management and control of the engine. Experience gained from the application of the model resulted in the development of the probe deployment rule discussed in this paper.

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Fuzzy neural ignition timing control for a natural gas fuelled spark ignition engine

Wang

Chirwa

Zhou

et al. 2001

Proceedings of the Institution of Mechanical Engineers, Part D:

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One of the important inputs to a spark ignition engine which aVects nearly all engine outputs is ignition timing. It is well known that the optimum ignition timing which gives the maximum brake torque for a given engine design varies with the rate of ame development and propagation in the cylinder. Modern engines show ignition timing being generally controlled by xed open-loop schedules as functions of engine speed and load. It is desirable that this ignition timing can be adjusted to the optimum level which produces the best torque to obtain minimum fuel consumption and maximum available power. This paper presents an ignition timing control system based on fuzzy logic and neural network theories. A bre optical sensor system was developed for measurement of the intensity of the luminous emission which correlates the combustion pressure and ignition timing control on a Ford 1600 cm3 four-cylinder spark ignition engine fuelled with natural gas. Several engine tests were carried out in optimizing the combustion intensity detection system. The results obtained provide important information compatible with intelligent control of the engine using fuzzy neural control technology. Moreover, tests carried out with data using this technology show good results that t quite well with the original engine output torque characteristics.on the properties of the air-fuel mixture, etc. In most D10800

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An Optical Sensor for Determination of Combustion Parameters in a Natural Gas Fuelled Spark Ignition Engine

Cited by 5 publications

References 12 publications

Design of combustion sensory based controller for natural gas engines

Design of combustion sensory based controller for natural gas engines

Kinematics of fibre optics sensory systems for control of a natural gas engine

Fuzzy neural ignition timing control for a natural gas fuelled spark ignition engine

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