Sustainable combustion and pollution cost analysis of diesel engine fueled with waste plastics pyrolysis oil and advanced additives: An experimental investigation on emission reduction potential

IF 5.4 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-09-22 DOI:10.1016/j.tsep.2025.104136

Amar Kumar Das , Aswani Kumar Acharya , Biswaranjan Parida , Achyut K Panda , Zhitong Yao , Sachin Kumar

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引用次数: 0

Abstract

Plastics are essential to modern life, consisting primarily of non-biodegradable polymers made from carbon, hydrogen, and occasionally elements like chlorine and nitrogen. The rapid growth of the global population has increased the demand for commodity plastics, due to its diverse applications. The world is now grappling with the challenge of effectively managing and recovering resources from the vast amount of plastic wastes. To prevent environmental pollution from plastic wastes, recycling and recovery are essential. The depletion of fossil fuels and rising energy demand has driven research into alternative energy sources. Plastics, due to their petrochemical origin and high calorific value, are well-suited for energy recovery. The fuels extracted from waste plastics by pyrolysis with regard to various inclusions of fuel additives have a significant effect on mitigating the pollutants from engine emissions. This study combines waste plastic fuel production with ethanol, nanographene, and biogas additives, optimizing engine performance and emissions. An environmental pollution cost analysis was conducted for WPO blended with ethanol, nanographene, and biogas under optimized engine conditions. The study showed notable reductions of CO by 0.06 % for 20WPO, 11.53 % for 20W20E as compared to diesel and other fuel mixtures. Similarly, HC and NOx were found reduced by 2.5 % for 20W20E as compared to diesel. The concentration of CO₂ for 20W20E was also reduced by 1.9 % as compared to diesel. 20W20E has lowest environmental cost (2.7305 × 10⁻⁴ kg/kJ), shortest payback (0.6665 yr), and highest energy payback (9.1713 yr), showing the best environmental and economic balance. The 20W20E blend showed the best overall performance across all load conditions.

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以废塑料热解油和先进添加剂为燃料的柴油机可持续燃烧及污染成本分析：减排潜力的实验研究

塑料对现代生活至关重要，它主要由不可生物降解的聚合物组成，这些聚合物由碳、氢、偶尔还有氯和氮等元素制成。全球人口的快速增长增加了商品塑料的需求，由于其多样化的应用。世界正在努力应对有效管理和从大量塑料废物中回收资源的挑战。为了防止塑料废物污染环境，回收利用是必不可少的。化石燃料的枯竭和不断增长的能源需求推动了对替代能源的研究。塑料，由于其石化来源和高热值，非常适合于能量回收。从废塑料中热解提取的燃料中含有不同的燃料添加剂，对减少发动机排放的污染物有显著的效果。这项研究将废塑料燃料与乙醇、纳米石墨烯和沼气添加剂结合起来，优化了发动机的性能和排放。在优化发动机条件下，对WPO与乙醇、纳米石墨烯和沼气混合的环境污染成本进行了分析。研究显示，与柴油和其他混合燃料相比，20WPO可显著减少0.06%的CO， 20W20E可显著减少11.53%的CO。同样，与柴油相比，20W20E的HC和NOx减少了2.5%。与柴油相比，20W20E的二氧化碳浓度也降低了1.9%。20W20E的环境成本最低（2.7305 × 10−4 kg/kJ），投资回报最短（0.6665 yr），能源回报最高（9.1713 yr），表现出最佳的环境与经济平衡。20W20E混合料在所有负载条件下表现出最佳的整体性能。

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

期刊介绍： Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.