Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 12 | Page No.: 1633-1637
DOI: 10.3923/jas.2007.1633.1637
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Effect of Copper Coating on Extended Expansion SI Engine

V. Krishnamoorthy and S. Chandrasekaran

Abstract:
In this research, a single cylinder engine with variable ER/CR ratio was analyzed for its performance when copper coating is done on the surface of cylinder head - piston combination. Copper element which can promote pre-flame reaction was coated on the surface of cylinder head and piston. ER/CR ratio (Expansion ratio/compression ratio) was varied with LIVCT (Late Inlet Valve Closing Time) and the load was regulated with LIVCT-VCR combination. Due to the catalytic effect of copper coating it was found that for the copper coated EE engine, the brake thermal efficiency was improved by 4% compared to standard engine operating at same conditions. The SFC of the copper coated engine was reduced by 0.8 kg per kw-h compared to that of standard engine. It was found that for ER/CR ratio equal to 1.5, the copper coated EE engine was giving best performance in terms of load and thermal efficiency. It was also seen that the lean misfire limit of the engine was extended up to 0.75.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

V. Krishnamoorthy and S. Chandrasekaran , 2007. Effect of Copper Coating on Extended Expansion SI Engine. Journal of Applied Sciences, 7: 1633-1637.

DOI: 10.3923/jas.2007.1633.1637

URL: https://scialert.net/abstract/?doi=jas.2007.1633.1637

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom