publication . Article . 2012

Thermographic study of the preheating plugs in diesel engines

M.A. Albertos-Arranz; J. Payá; J.A. Cárcel-Cubas; R. Royo;
Open Access
  • Published: 01 Jan 2012 Journal: Applied Thermal Engineering, volume 37, pages 412-419 (issn: 1359-4311, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Spain
Abstract
The use of direct injection diesel engines has been widely applied during the past ten years. In such engines, the preheating plugs are a key element which has a significant contribution in the pollutant emissions. In this paper, two different plug designs from Renault are analyzed. The new plug reduces substantially the required electrical consumption. Nevertheless, the pollutant emissions are higher (fundamentally CO and HCs) and hereby a thorough analysis is required to understand the possible reasons. Firstly, an infrared thermography analysis of the plugs has been carried out. The new plug tip presents 100e200 C higher temperatures than with the former desi...
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doi: 10.1016/j.applthermaleng.2011.11.059
handle: 10251/47644
Subjects
free text keywords: Industrial and Manufacturing Engineering, Energy Engineering and Power Technology, Diesel engines, Preheating plugs, Infrared thermography, MAQUINAS Y MOTORES TERMICOS, TERMODINAMICA APLICADA (UPV), Temperature measurement, Spark plug, law.invention, law, Energy flow, Thermal model, Air gap (plumbing), Cylinder (engine), Thermography, Mechanical engineering, Diesel fuel, Engineering, business.industry, business
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