Advances in Internal Combustion Engine Research by Dhananjay Kumar Srivastava Avinash Kumar Agarwal Amitava Datta & Rakesh Kumar Maurya

Author:Dhananjay Kumar Srivastava, Avinash Kumar Agarwal, Amitava Datta & Rakesh Kumar Maurya
Language: eng
Format: epub
Publisher: Springer Singapore, Singapore

Figure 3 shows the NTP treatment by electric discharge method. In electric discharge method, one electrode is connected with positive terminal of power source and another electrode is connected with negative terminal of power source. When both electrodes connect with power source, then electron starts flowing from positive terminal to negative terminal and ionizes the exhaust gas in between. These electrons produce more and more ions, and in this way, plasma is created, which is used for NO x reduction present in exhaust gas. There are different electric discharge methods for plasma generation such as corona electric discharge, dielectric barrier discharge, microwave electric discharge, and plasma jet electric discharge. In corona electric discharge method, one electrode shape is sharp or pinpointed and other in form of plate. But in dielectric barrier discharge method, both electrodes are in plate form. In plasma jet electric discharge method, plasma is generated in the form of jet so it is known as plasma jet electric discharge method. In microwave electric discharge method, plasma is generated with the help of microwaves [11]. The chemical reaction which takes place is given as (9).

Fig. 3Plasma generated by electric discharge

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