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논문 기본 정보

자료유형
학술저널
저자정보
Devakaran Karaiellapalayam Palanisamy (PSG College of Technology) Arunshankar Jayabalan (PSG College of Technology)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제22권 제1호
발행연도
2021.1
수록면
79 - 85 (7page)

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The selective catalytic reduction (SCR) and fast-SCR retrofit systems effectively control the nitrogen oxides (NOx) emission forthe diesel engine exhaust, using adblue solution and catalyst. The performance characteristic of retrofit system with efficientcatalyst and optimum flow channel design, without affecting the engine performance is still a challenging factor. Theexperimental work is done on a stationary diesel engine test bench coupled to the retrofit system in its exhaust, at steady-statecondition. A pair of ceramic monolith coated with cerium oxide (CeO2) and zeolite (ZSM-5) catalysts are used for preoxidationand SCR chambers respectively. The catalysts are characterized by XRD method and dip coated over the ceramicmonolith. The static mixer blade inside the middle retrofit pipe is used for homogenization and complete evaporation of adbluesolution. The influences of NOx conversion efficiency of retrofit systems are investigated with the ZSM-5 catalyst and latercombined with CeO2 catalyst. From the experimental results, it is observed that the fast-SCR retrofit system with static mixerblade has a better NOx conversion efficiency, with marginal decrease in engine brake thermal efficiency than the other retrofitsystems at maximum brake power. The increase in brake specific fuel consumption (BSFC) of the retrofit system causes theengine brake thermal efficiency to decrease marginally with increase in brake power.

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