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Experimental assessment for instantaneous temperature and heat flux measurements under Diesel motored engine conditions

机译:柴油发动机条件下瞬时温度和热通量测量的实验评估

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摘要

The main goal of this work is to validate an innovative experimental facility and to establish a methodology to evaluate the influence of some of the engine parameters on local engine heat transfer behaviour under motored steady-state conditions. Instantaneous temperature measurements have been performed in order to estimate heat fluxes on a modified Diesel single cylinder combustion chamber. This study was divided into two main parts. The first one was the design and setting on of an experimental bench to reproduce Diesel conditions and perform local-instantaneous temperature measurements along the walls of the combustion chamber by means of fast response thermocouples. The second one was the development of a procedure for temperature signal treatment and local heat flux calculation based on one-dimensional Fourier analysis. A thermodynamic diagnosis model has been employed to characterise the modified engine with the new designed chamber. As a result of the measured data coherent findings have been obtained in order to understand local behaviour of heat transfer in an internal combustion engine, and the influence of engine parameters on local instantaneous temperature and heat flux, have been analysed.
机译:这项工作的主要目的是验证一种创新的实验设备,并建立一种方法来评估某些发动机参数对机动稳态条件下局部发动机传热性能的影响。为了估计改进的柴油单缸燃烧室的热通量,已经进行了瞬时温度测量。这项研究分为两个主要部分。第一个是设计和设置实验台,以再现柴油机条件,并通过快速响应热电偶沿燃烧室壁进行局部瞬时温度测量。第二个是开发基于一维傅里叶分析的温度信号处理和局部热通量计算程序。已使用热力学诊断模型来表征具有新设计腔室的改进型发动机。作为测量数据的结果,获得了连贯的发现,以便理解内燃机中传热的局部行为,并且分析了发动机参数对局部瞬时温度和热通量的影响。

著录项

  • 来源
    《Energy Conversion & Management》 |2012年第1期|p.57-66|共10页
  • 作者单位

    CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s, 46022 Valencia, Spain;

    CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s, 46022 Valencia, Spain;

    CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s, 46022 Valencia, Spain;

    CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s, 46022 Valencia, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    diesel engine; transient heat flux; local wall temperature; fast response thermocouples;

    机译:柴油发动机;瞬态热通量局部壁温快速响应热电偶;

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