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首页> 外文期刊>Energy >Analysis of the effect of different hydrogen/diesel ratios on the performance and emissions of a modified compression ignition engine under dual-fuel mode with water injection. Hydrogen-diesel dual-fuel mode
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Analysis of the effect of different hydrogen/diesel ratios on the performance and emissions of a modified compression ignition engine under dual-fuel mode with water injection. Hydrogen-diesel dual-fuel mode

机译：在注入水的双燃料模式下，分析不同氢/柴油比对改进型压燃式发动机性能和排放的影响。氢柴油双燃料模式

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The utilisation of gaseous hydrogen (H-2) in compression ignition (CI) engines is a viable option for simultaneously solving the problems of energy efficiency improvements and emissions reduction, including greenhouse gases because combustion does not produce CO2. This paper is the second of three of a study devoted to the analysis of dual combustion (diesel-H-2) in internal combustion engines. In this Part II, a diesel engine is modified to run using a hydrogen-diesel mixture as a dual fuel. This mode of operation has been studied for two speeds and different diesel injection strategies, up to a H-2/diesel mass ratio of 1. In order to control NOx emissions, intake self-ignition and combustion knocking, water was injected into the intake manifold. The test results show that smoke emissions decrease and NOx emissions increase with an increase in the H-2/diesel ratio, but water injection produces a reduction in the NOx emissions of around 50%, with an almost flat efficiency of 37%. This article contains a study of the parametrization of the heat release rate (HRR) to obtain a functional law that allows us to reproduce the HRR through several initial parameters for the cases studied in Parts I (H-2 as main fuel) and II. (C) 2019 Elsevier Ltd. All rights reserved.
机译：在压缩点火（CI）发动机中使用气态氢（H-2）是同时解决提高能源效率和减少排放问题（包括温室气体）的可行选择，因为燃烧不会产生二氧化碳。本文是致力于内燃机双重燃烧（柴油H-2）分析的三个研究中的第二个。在此第二部分中，柴油机被修改为使用氢柴油混合物作为双燃料运行。已经针对两种速度和不同的柴油喷射策略研究了这种运行模式，H-2 /柴油质量比最高为1。为了控制NOx排放，进气口自燃和燃烧爆震，将水注入进气口。流形。测试结果表明，随着H-2 /柴油比的增加，烟雾排放量减少，NOx排放量增加，但是注水后NOx排放量减少约50％，效率几乎持平，为37％。本文包含对放热率（HRR）的参数化研究，以获取功能定律，该定律使我们能够通过第一部分（以H-2作为主要燃料）和第二部分研究的情况的几个初始参数来再现HRR。 （C）2019 Elsevier Ltd.保留所有权利。

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