An influence of methane/hydrogen proportion in fuel blend on efficiency of conversion energy in SI engine
An influence of methane/hydrogen proportion in fuel blend on efficiency of conversion energy in SI engine
复制标题
混合燃料中甲烷/氢气比例对SI发动机转换能量效率的影响
DOI：
10.5604/12314005.1137955
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
G. Kubica
中科院分区：
文献类型：
--
作者：
M. Flekiewicz;G. Kubica
本文介绍了混合燃料中甲烷/氢气比例之间的关系。所进行的研究周期包含测功机底盘测试结果，并辅以数学模型计算。以欧宝雅特I型X16 SZR发动机为研究对象。该发动机已配备了额外的CNG供给系统，燃料在低压下被喷射到进气歧管中。以可变的甲烷/氢气体积比例（%）测试8种燃料共混物：100/0、95/5、90/10、85/15、80/20、70/30、60/40和50/50。进料和点火系统由标称驱动器控制。在每个测量系列中，发动机在以下稳定状态下进行测试：怠速、无负载高速和在1500 - 3500 rpm范围内的离散可变速度下的全功率。分析的主要方面是确定氢份额对发动机参数的影响，如功率，燃油消耗，缸内压力，温度和排气成分。CO2减排的生态学事实可能性非常显著.燃料混合物中氢含量增加的结果是发动机爆震。在结果的基础上进行的分析允许它的点上的甲烷/氢气的比例在燃料混合物考虑总效率，排放和热通量在发动机燃烧室的部分。
The relations between methane/hydrogen proportions in fuel blend are presented in this paper. The research cycle carried out contains results of dynamometer chassis tests complemented with mathematical model calculations. An object of X16SZR engine installed in Opel Astra I was investigation. The engine has been equipped with additional CNG feeding system where fuel is being injected into intake manifold under low pressure. 8 fuel blends were tested with variable methane/hydrogen volume proportion (%): 100/0, 95/5, 90/10, 85/15, 80/20, 70/30, 60/40 and 50/50. The feeding and ignition systems were controlled by nominal drivers. In every measuring series engine was tested in the following steady states: on idle, high speed without load and full power at discrete variable speed in range 1500…3500 rpm. The main aspect of the analysis was to identify the influence of hydrogen share on engine parameters such power, fuel consumption, in-cylinder pressure, temperature and exhaust gas composition. Very significant ecological fact possibility of CO 2 emission reduction has been identified. Result of increasing content of hydrogen in fuel mixture is engine knocking. Analysis carried out on the basis of results allowed it to the point on methane/hydrogen proportion in fuel blend considering a total efficiency, emission and heat flux in parts of combustion chamber in engine.