• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议> >Simplified Method for Fuel Quality Prediction
【24h】

Simplified Method for Fuel Quality Prediction

机译：燃油质量预测的简化方法

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The objective of this work is to compare the quality of various diesel fuels using a normal engine and carrying out the test under the actual operating conditions of the engine, unlike the conventional test methods that uses standard test conditions. The standard test conditions involve the running of the diesel engine test rig at a speed of around 800 rpm, which is not the condition when the fuel is actually being used, as the operational speed of commercial engines is around 1500-2000 rpm. Also the non-engine based quality rating methods are not economically liable and are inaccurate as they depend too much on the chemical nature of the fuel. So, the objective of this work is to develop a generalized quality rating procedure with less number of parameters, with a simpler and cheaper method compared to other available methods. A single cylinder diesel engine was used to study the ignition quality of various reference fuels of known Cetane numbers. A relatively simple and compact setup was used, by modifying the existing test rig. The inlet manifold was incorporated with an airflow control valve so that the quantity of air let into the cylinder can be varied. The exhaust gas manifold was modified to enable easier observation of the exhaust gas. The single cylinder diesel engine was made to run at two distinct conditions, namely, the normal and white-puff / critical condition, with the reference fuels of known cetane numbers. The quantity of air available for the fuel to combust is the only difference between the two conditions. The air-fuel ratio of each fuel under both the conditions was continuously monitored. A correlation was developed between the critical air-fuel ratios and the corresponding Cetane numbers. From this correlation, a test fuel can be rated easily by finding the air-fuel ratio, by running it in the same engine at an identical load, at an instant when the "white puff is observed.
机译：这项工作的目的是比较使用普通发动机的各种柴油的质量，并在发动机的实际运行条件下进行测试，这与使用标准测试条件的常规测试方法不同。标准测试条件包括柴油发动机试验台以大约800 rpm的速度运行，这不是实际使用燃料时的条件，因为商用发动机的运行速度约为1500-2000 rpm。同样，基于非发动机的质量评级方法也不经济，也不准确，因为它们过多地依赖于燃料的化学性质。因此，这项工作的目的是开发一种具有较少参数数量的通用质量评级程序，与其他可用方法相比，该方法更简单，更便宜。单缸柴油机用于研究已知十六烷值的各种参考燃料的点火质量。通过修改现有的测试设备，使用了相对简单且紧凑的设置。进气歧管装有气流控制阀，因此可以改变进入气缸的空气量。排气歧管经过改装，可以更轻松地观察排气。使单缸柴油发动机在两种不同的条件下运行，即正常和白吹/临界条件，并使用已知十六烷值的参考燃料。可用于燃料燃烧的空气量是两个条件之间的唯一区别。连续监测两种条件下每种燃料的空燃比。在临界空燃比和相应的十六烷值之间建立了相关性。根据这种相关性，在观察到“白色粉扑”的瞬间，通过在相同的发动机中以相同的负载运行空燃比，可以轻松找到待测燃料的等级。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号