本文基于TBD234V6型柴油机，将原单涡轮增压改为双涡轮增压进行掺烧生物柴油试验。配置生物柴油体积掺混比为0%，5%，10%，15%，20%，25%共6组生物柴油掺混比，选取10%，20%，30%，40%，50%，60%，70%，80%，90%，100%共10个工况点进行试验。结果表明：相继增压柴油机生物柴油掺混比为0时，在10%～40%负荷，较原机相比，最高燃烧压力增大，油耗降低，NOx和Soot排放下降；在50%～100%负荷，最高燃烧压力与原机相比略微下降，燃油消耗率、NOX和Soot排放略优于原机。但增大生物柴油掺混比，相继增压柴油机最高燃烧压力下降，油耗增加，NOx排放升高，显著改善Soot排放。基于试验数据，建立多目标灰色决策模型，计算得到相继增压柴油机生物柴油最佳掺混比为25%。
In this paper, based on TBD234V6 diesel engine, single turbocharging is changed to double turbocharging and the experiment of mixing biodiesel is carried out. The volume blending ratio of biodiesel was 0%, 5%, 10%, 15%, 20%and 25%. Ten working points of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and 100% were selected for the test. The experimental results show that when the biodiesel blending ratio is 0, the maximum combustion pressure increases, the fuel consumption decreases, and the NOx and Soot emission decreases compared with the original diesel engine at 10%~40% load. At 50%~100% load, the maximum combustion pressure decreased slightly compared with the original engine, and the fuel consumption rate, NOX and Soot emission were slightly better than the original engine. However, when the biodiesel blending ratio increases, the maximum combustion pressure decreases, fuel consumption increases, NOx emission increases, and Soot emission is significantly improved. Based on the experimental data, the multi-objective grey decision model was established, the optimal blending ratio of biodiesel from sequential turbocharged diesel engine was calculated to be 25%.
2023,45(2): 129-134 收稿日期：2021-08-18
DOI：10.3404/j.issn.1672-7649.2023.02.023
分类号：U664.1
基金项目：省部重点实验室开放课题（嘉庚科函[2022]9号-1）；国家自然基金资助项目（52171308）；福建省自然科学基金资助项目（2019J01705，2018J01491，2018J01499）
作者简介：唐铭沂(1998-),女,硕士研究生,研究方向为轮机工程
