Novel Ziziphus mauritiana biodiesel-fuelled DICI engine characteristics enhancement by camphor oil blend and EGR

IF 3 3区工程技术 Q2 CHEMISTRY, ANALYTICAL Journal of Thermal Analysis and Calorimetry Pub Date : 2024-09-02 DOI:10.1007/s10973-024-13574-x

R. V. Sabariraj, G. Kasiraman

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Abstract

Energy demand has increased gradually. Meeting the energy demand through available sources in the country leads to self-sufficiency. Alternate fuel production and implementation-based research have been more concentrated on encountering that demand for CI engine fuels. Here, transesterification produced biodiesel from the Ziziphus mauritiana seed oil is used. While running, the 5.2 kW CI engine with this new neat Ziziphus mauritiana biodiesel (ZMBD) has 8.7% lesser brake thermal efficiency and 4% and 33% higher NOx and smoke emissions than diesel at full load. Therefore, this biodiesel is blended with 10% and 20% by volume of camphor oil biofuel (COBF) to improve the performance. Also, exhaust gas recirculation (EGR) of 10% and 20% is employed for the better result-produced blend. At full load, 80% ZMBD with 20% COBF blend produced 6.9%, 19.8%, and 15.3% increased brake thermal efficiency, maximum heat release rate, and NOx emission and also 19.05%, 23.73%, 5.78%, and 19.75% drop in CO, unburnt HC, CO₂, and smoke emission than ZMBD. With this blended fuel operation and 20% EGR employment is produced 52.99% reduction in NOx and a 13.96% reduction in smoke emission with 3.33% increased brake thermal efficiency compared to straight ZMBD. Therefore, this 80% ZMBD and 20% COBF blend with 20% EGR is recommended for the CI engine with improved performance and reduced NOx emission.

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利用樟脑油混合物和 EGR 提高以毛栗子生物柴油为燃料的新型 DICI 发动机性能

能源需求逐渐增加。通过国内现有资源满足能源需求可实现自给自足。替代燃料的生产和基于实施的研究更集中于满足对 CI 发动机燃料的需求。在这里，我们使用的是从毛地黄种子油中经过酯交换反应生产出的生物柴油。5.2 千瓦的 CI 发动机在满负荷运行时，使用这种新型生物柴油（ZMBD）的制动热效率比柴油低 8.7%，氮氧化物和烟雾排放量分别比柴油高 4% 和 33%。因此，在这种生物柴油中掺入体积分数分别为 10%和 20%的樟脑油生物燃料 (COBF)，以提高其性能。此外，还采用了 10%和 20%的废气再循环（EGR）技术，以获得更好的混合效果。在满负荷情况下，80% ZMBD 与 20% COBF 混合燃料的制动热效率、最大热释放率和氮氧化物排放量分别比 ZMBD 提高了 6.9%、19.8% 和 15.3%，CO、未燃 HC、CO2 和烟雾排放量也分别比 ZMBD 降低了 19.05%、23.73%、5.78% 和 19.75%。与纯 ZMBD 相比，使用这种混合燃料和 20% 的 EGR 后，氮氧化物排放量减少了 52.99%，烟雾排放量减少了 13.96%，制动热效率提高了 3.33%。因此，这种 80% 的 ZMBD 和 20% 的 COBF 混合燃料以及 20% 的 EGR 被推荐用于 CI 发动机，以提高性能和减少氮氧化物排放。

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来源期刊

Journal of Thermal Analysis and Calorimetry 化学-分析化学

CiteScore

8.50

自引率

9.10%

发文量

577

审稿时长

3.8 months

期刊介绍： Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews. The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.