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本文概述中速柴油机制造商所面对的满足排放法规要求的可能性(主要考虑采用缸内技术),重点论述在保持低的NOx排放水平的前提下颗粒物减排的潜力。具体介绍里卡多(Ricardo)公司借助于3DCFD分析对一种缸径为170～230mm的发动机燃烧进行的开发,开发过程中采用了基于Ricardo发动机的CFD软件——VECTIS。所开发的这种低碳烟燃烧系统除了能够减少发动机的颗粒物(PM)排放外,还有助于降低发动机初始成本、整个寿命期成本以及提高发动机和后处理装置的耐久性和可靠性。
This article outlines the potential for medium-speed diesel manufacturers to meet emission regulations (with a focus on in-cylinder technology), highlighting the potential for particulate emissions while maintaining low levels of NOx emissions. Specifically, Ricardo developed a combustion engine with a cylinder diameter of 170-230 mm by means of 3DCFD analysis, using a Ricardo engine-based CFD software called VECTIS. In addition to reducing engine PM emissions, the low-carbon smoke combustion system developed helps reduce initial engine costs, overall lifetime costs, and durability and reliability of engine and aftertreatment devices.