TERI Information Digest on Energy and Environment
  • Year: 2010
  • Volume: 4
  • Issue: 4

Investigations on lean burn spark ignition engine using high-intensity spark plugs

  • Author:
  • V Ravi, V Pandurangadu2, C Prabhakar Reddy3, V V Prathibha Bharathi4

2Department of Mechanical Engineering, JNTUCE, Ananthapur.

3Sri Venkateshwara College of Engineering, Bengaluru.

4SKD Engineering College, Gooty.

Abstract

Experiments were conducted to determine the performance characteristics of a single cylinder, four-stroke spark ignition (SI) engine using various spark plugs such as conventional short-reach plug, platinum-tipped plug, extended multi-electrode plug, and extended multi-electrode plug with Platinum-Iridium (Pt-Ir) coating. A high-energy 12-volt battery spark ignition system with provision for spark retard was incorporated.The characteristics of various spark plugs with respect to engine performance, emissions, and lean misfire limit have been investigated. Maximum Brake Torque (MBT) conditions were maintained, while noting the performance characteristics, which were around 250 before top dead center (BTDC).

Keywords

High compression ratio, spark plugs, peak pressure, emissions