To help achieve zero carbon emissions from inland waterway vessels, this implementation of oxy-fuel combustion on a practical diesel engine at the economical oxygen-fuel ratios were systematically studied and analysed in this paper. A 1-D simulation was used to explore the effect of various operating parameters for recovering the engine power when the engine is modified to the oxy-fuel combustion from conventional air combustion. The brake power of oxy-fuel combustion is only 26.7 kW that has a noticeable decline compared with 40 kW of conventional air combustion with fixed consumption of fuel and oxygen. By optimising some valuable parameters, like fuel injection timing, intake charge temperature, intake components, engine compression ratio and water injection strategy, a benefit of 6.8 kW has been acquired in the engine power. Afterwards, a remarkable benefit was obtained with the increase of lambda_O2 from 1.0 to 1.5, finally obtaining the same engine power with the conventional air combustion. Above all, taking advantage of various operating parameters, it is expected to further improve the value of the implement of oxy-fuel combustion on diesel engines at the economical oxygen-fuel ratios.

为了帮助实现内陆水道船舶的零碳排放，本文系统地研究和分析了在实际的柴油发动机上以经济的氧-燃料比进行氧-燃料燃烧的实施方案。一维模拟用于探索各种操作参数对恢复发动机功率的影响，当发动机从传统的空气燃烧改装为含氧燃料燃烧时，该操作参数可恢复发动机功率。含氧燃料燃烧的制动力仅为26.7 kW，与固定燃料和氧气消耗的传统空气燃烧的40 kW相比，下降明显。通过优化一些有价值的参数，例如燃料喷射正时，进气温度，进气组件，发动机压缩比和注水策略，发动机功率获得了6.8 kW的好处。之后，_O2从1.0到1.5，最终获得与常规空气燃烧相同的发动机功率。首先，利用各种运行参数，期望以经济的氧-燃料比进一步提高柴油机上的氧-燃料燃烧的实施价值。