A fibre 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 identified 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.
Kinematics of fibre optics sensory systems for control of a natural gas engine
2001-06-01
12 pages
Article (Journal)
Electronic Resource
English
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