预热棕榈油在大型压燃式柴油机中长期相容性的实验研究

IF 14.4 Q1 ENERGY & FUELS Biofuel Research Journal-BRJ Pub Date : 2018-12-01 DOI:10.18331/BRJ2018.5.4.5
E. Pipitone, Antonio Costanza
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引用次数: 21

摘要

在大型固定式压缩点火发动机上进行了一项实验研究,以评估使用粗棕榈油作为燃料的长期兼容性和耐久性问题。采用两种不同的预热温度(60°C和80°C)来评估与降低燃料粘度相关的潜在改进。在缸内积碳和发动机磨损方面,与使用普通柴油得到的结果进行了比较。对于每种燃料和预热温度,发动机连续运行300小时,在此期间收集和分析几种发动机润滑油样品,以确定烟灰和燃料污染,粘度变化以及不同磨损相关金属的存在(通过原子吸收光谱测量)。在每次300小时耐力测试结束时,从发动机气缸中刮取碳沉积,并通过热重分析(TGA)进行检测。研究发现,与普通柴油相比,使用粗棕榈油导致缸内沉积物形成显著增加。对润滑油的分析还显示,粘度下降更快,因此发动机磨损更严重,尤其是预热温度较低。所获得的结果证实,在使用粗棕榈油加油时,应小心减少发动机的连续运行(即没有完全更换润滑油)。此外,本文的研究结果证实,与60°C相比,80°C燃料预热的有利影响,即减少了27%的碳沉积,延长了30%的发动机运行时间。
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An experimental investigation on the long-term compatibility of preheated crude palm oil in a large compression ignition diesel engine
An experimental study was carried out on a large stationary compression ignition engine to evaluate the long-term compatibility and durability issues associated with the use of crude palm oil as fuel. Two different preheating temperatures (60 and 80 °C) were adopted to assess the potential improvements related to lower fuel viscosity. The results obtained, in terms of in-cylinder carbon deposits and engine wear, were compared with the results obtained using ordinary diesel fuel. For each fuel and preheating temperature, the engine was operated for 300 consecutive h, during which several engine lubricant samples were collected and analysed to determine soot and fuel contaminations, viscosity alterations, and the presence of different wear-related metals (measured by atomic absorption spectroscopy). At the end of each 300 h endurance test, the carbon deposits were scraped from engine cylinders and examined through thermogravimetric analysis (TGA). It was found that the use of crude palm oil caused a remarkable increment of in-cylinder deposits formation compared with ordinary diesel. The lubricant analysis also revealed a faster viscosity degradation and consequent stronger engine wear, above all with the lower preheating temperature. The results obtained confirmed that continuous engine operation (i.e., without a complete lubricant change) should be carefully reduced when fuelling with crude palm oil. Moreover, the findings obtained herein confirmed the favourable impacts of fuel preheating at 80 °C compared to 60 °C, i.e., reduced carbon deposits by 27% and extended engine operation time by 30%.
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来源期刊
CiteScore
22.10
自引率
1.50%
发文量
15
审稿时长
8 weeks
期刊介绍: Biofuel Research Journal (BRJ) is a leading, peer-reviewed academic journal that focuses on high-quality research in the field of biofuels, bioproducts, and biomass-derived materials and technologies. The journal's primary goal is to contribute to the advancement of knowledge and understanding in the areas of sustainable energy solutions, environmental protection, and the circular economy. BRJ accepts various types of articles, including original research papers, review papers, case studies, short communications, and hypotheses. The specific areas covered by the journal include Biofuels and Bioproducts, Biomass Valorization, Biomass-Derived Materials for Energy and Storage Systems, Techno-Economic and Environmental Assessments, Climate Change and Sustainability, and Biofuels and Bioproducts in Circular Economy, among others. BRJ actively encourages interdisciplinary collaborations among researchers, engineers, scientists, policymakers, and industry experts to facilitate the adoption of sustainable energy solutions and promote a greener future. The journal maintains rigorous standards of peer review and editorial integrity to ensure that only impactful and high-quality research is published. Currently, BRJ is indexed by several prominent databases such as Web of Science, CAS Databases, Directory of Open Access Journals, Scimago Journal Rank, Scopus, Google Scholar, Elektronische Zeitschriftenbibliothek EZB, et al.
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