Exhaust gas measuring system

废气测量系统

• 批准号: 446332744
• 金额: --
• 依托单位: Otto-von-Guericke-Universität Magdeburg
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/446332744?language=en
• 关键词: Exhaust; gas; measuring; system

Modern exhaust gas measurement technology is an essential prerequisite for the cooperation of the chair with the automotive industry. Strict legal requirements regarding pollutant emissions force every engine manufacturer today to measure all legally relevant pollutants in the exhaust gas already in the pre-development of an engine in order to adapt the combustion process to the legal requirements. For this purpose, successful pollutant conversion with catalytic converters requires the analysis of the composition of certain exhaust components such as nitrogen oxides, particles and in certain cases hydrocarbon emissions.In gasoline engines fired by natural gas, methane is an important component of hydrocarbon emissions. Methane differs from other hydrocarbons. It is much more difficult to convert methane with conventional 3-way catalytic and oxidation catalytic converters. So it is more difficult to comply with the emission limits for natural gas engines. For this reason, it is necessary to record and measure the proportion of methane emissions separately as early as the concept phase of a natural gas engine. This is possible with the exhaust gas measuring system applied for here, among other things.With the new device, we could measure simultaneously before and after the catalytic converter. This is now state of the art. For this purpose, we would operate the device simultaneously with an existing device from 2009. This is the only way to calculate the conversion rate of the catalytic converter. This is the most important variable for assessing the functionality of a catalyst. It should also be noted that the device developed in 2009 is well utilized. Thus, the new exhaust gas measuring device would help to maintain research operations at a high level.With the help of the new large-scale device, we would also be able for the first time to measure non-limited exhaust gas components with the FTIR spectrometer (Fourier Transform Infrared Spectrometer) to investigate their effects on humans. The spectrometer analyzes or measures components such as ammonia, methane, sulfur dioxide and formaldehyde.For these reasons, which also result from current and future research projects, it is clear that an optical measuring system with spectral analysis is necessary to determine limited and unlimited exhaust gas components.

现代废气测量技术是椅子与汽车工业合作的必要前提。关于污染物排放的严格法律要求迫使今天的每个发动机制造商在发动机开发前就测量废气中所有法律上相关的污染物，以使燃烧过程符合法律要求。为此目的，用催化转换器成功地转化污染物需要分析某些废气成分的组成，如氮氧化物、颗粒和在某些情况下的碳氢化合物排放。在以天然气为燃料的汽油机中，甲烷是碳氢化合物排放的重要组成部分。甲烷不同于其他碳氢化合物。用传统的三元催化和氧化催化转化器转化甲烷要困难得多。因此，符合天然气发动机排放限值的难度更大。因此，早在天然气发动机的概念阶段，就有必要单独记录和测量甲烷排放的比例。这是可能的废气测量系统应用在这里，除其他外。利用该装置，我们可以在催化转化器前后同时进行测量。这是目前最先进的技术。为此，我们将与2009年的现有设备同时操作该设备。这是计算催化转化器转化率的唯一方法。这是评价催化剂功能最重要的变量。还应该指出的是，2009年开发的设备得到了很好的利用。因此，新的废气测量装置将有助于维持高水平的研究工作。在新的大型设备的帮助下，我们也将能够首次使用FTIR光谱仪（傅里叶变换红外光谱仪）测量非限制废气成分，以研究它们对人体的影响。光谱仪分析或测量氨、甲烷、二氧化硫和甲醛等成分。由于这些原因，也是当前和未来研究项目的结果，很明显，需要一个具有光谱分析的光学测量系统来确定有限和无限的废气成分。