Development of Spark Electrode for an Explosion Vessel

• 主要作者: Minhat, Mizuan
• 格式: Final Year Project
• 語言: English
• 出版: Universiti Teknologi PETRONAS 2011
• 主題: TJ Mechanical engineering and machinery
• 在線閱讀: http://utpedia.utp.edu.my/10259/1/2011%20Bachelor%20-%20Development%20Of%20Spark%20Electrode%20For%20An%20Explosion%20Vessel.pdf; http://utpedia.utp.edu.my/10259/

This project is about developing of spark electrode for ignition system by basically using an electrical discharge. A proper set up or assemble for the ignition system need to be done to produce desired spark energy. However, current spark ignition system is not customizing to the research explosion vessel. Further, different spark and explosion propagation are also needed to suite the ignition for the gaseous flammability. Therefore, a suitable ignition system is being created to ensure that energy produced in the spark can be used to study the ignition system for that gaseous flammability. A long electrode holder needs to be design and fabricate to suite the explosion vessel. The orientation for the explosion vessel needs to be understood with the suitable spark gap. According to the working principle of ignition coils, the function is determined and the usage is put as a step up transformer to increase the output voltage. The calculation of the ignition energy is based on discharge capacitor principal. The experiment provides an effective method to produce an ignition spark for a research explosion vessel. Further, the factor that affects the spark size will be determined and the fuctor will be for the experiment to see the variation of the spark development. The ignition energy can be varied by adjusting the current comes from a power supply. The spark energy should be measureable and highly important in this project is how the safety is conduct to protect against physical or other types or consequences of failure, damage, error, accidents, harm or any other event which could be considered nondesirable. From the finding, the voltage inputs were taken as manipulation factor and the size of the spark were different based on different voltage input. Furthermore, the factor that gives much affect towards the spark size and ignition energy was the capacitance value. Higher capacitance value gives higher ignition energy and further increase the sparks sizes that were produced. Ignition energy and peak pressures vary strongly as a function of initial temperature, but are a weak function of mass loading.