Dhananjay Kumar Srivastava1, Avinash Kumar Agarwal 1, Tarun Gupta2

  • 1 Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur – 208016, India
  • 2 Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur 208017, India

Received: May 26, 2011
Revised: September 17, 2011
Accepted: September 17, 2011
Download Citation: ||https://doi.org/10.4209/aaqr.2011.05.0070  

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Cite this article:
Srivastava, D.K., Agarwal, A.K. and Gupta, T. (2011). Effect of Engine Load on Size and Number Distribution of Particulate Matter Emitted from a Direct Injection Compression Ignition Engine. Aerosol Air Qual. Res. 11: 915-920. https://doi.org/10.4209/aaqr.2011.05.0070


 

ABSTRACT


Particle size and number distribution from an engine tailpipe has a direct bearing on the residence time of the particles in the atmosphere and their toxicity. This study presents the number concentration and size distributions of nano-particles emitted from naturally aspirated, water cooled, single cylinder, diesel fuelled direct injection compression ignition (DICI) engine. The engine exhaust particle sizer (EEPS) was used for measurement of number, surface area and mass distributions of soot particles. It measures particle sizes ranging from 5.6 to 560 nm. Reading the size distribution 10 times per second allows for the measurement of transient emissions of soot particles. The experiments were conducted at a constant engine speed (1500 rpm) with varying engine load. It was found that (a) number and size distribution, (b) surface area and size distribution, and (c) mass and size distribution of soot particles varies significantly with the engine load. The width of the emitted particle size distribution increases with increasing engine load.


Keywords: Aerosols; Hazardous air pollutants; Air Toxins; Diesel aerosols; Characterization; Nano-particle measurement


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