Impact of varying injection pressure on CI engine characteristics fuelled with Ceiba pentandra biodiesel and NOx reduction strategy

IF 2.3 4区工程技术 Q2 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering Pub Date : 2024-08-02 DOI:10.1177/09544089241263754

B Saravanan, MA Asokan

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引用次数: 0

Abstract

The novelty of the present work deals with the experimental investigation on the effects of varying injection pressure (IP) on CI engine characteristics using a novel Ceiba pentandra biodiesel at 20% by volume (B20). The key objective of this study is to enhance the engine characteristics by increasing the IP of the fuel blends without any major engine modifications This strategy could improve the performance of the engine as higher IP resulted in improved atomization and better air-fuel mixing. From the experimentation it was found that combined strategy of biodiesel blend (B20) and higher IP (260 bar) resulted in increased BTE (9%), CP (8.5%), HRR (2%) and reduced BSFC (9%), CO (14%), HC (16%), and Smoke (16%) than diesel (B0) at a standard IP of 200 bar. To overcome the challenges of higher NOx emission at higher IP, exhaust gas recirculation (EGR) technique is also implemented at lower rates. With the effect of 15% EGR, there was a subsequent 29% reduction in NOx emission achieved without affecting other emissions trade-offs.

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不同喷射压力对以五味子生物柴油为燃料的 CI 发动机特性的影响以及氮氧化物减排策略

本研究的新颖之处在于使用体积分数为 20% （B20）的新型 Ceiba pentandra 生物柴油，对不同喷射压力（IP）对 CI 发动机特性的影响进行了实验研究。这项研究的主要目的是在不对发动机进行任何重大改动的情况下，通过提高混合燃料的 IP 值来增强发动机的性能。实验发现，生物柴油混合燃料（B20）和更高的 IP 值（260 巴）的组合策略比标准 IP 值为 200 巴的柴油（B0）提高了 BTE（9%）、CP（8.5%）、HRR（2%），降低了 BSFC（9%）、CO（14%）、HC（16%）和烟尘（16%）。为了克服较高 IP 值下氮氧化物排放量较高的难题，还采用了废气再循环（EGR）技术，但废气再循环率较低。在 15%的 EGR 作用下，氮氧化物排放量随后减少了 29%，而不会影响其他排放权衡。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 工程技术-工程：机械

CiteScore

3.80

自引率

16.70%

发文量

370

审稿时长

6 months

期刊介绍： The Journal of Process Mechanical Engineering publishes high-quality, peer-reviewed papers covering a broad area of mechanical engineering activities associated with the design and operation of process equipment.