Spark-ignition engine

About: Spark-ignition engine is a research topic. Over the lifetime, 4352 publications have been published within this topic receiving 66550 citations.

Response evaluation of TiO2 sensor to flue gas on spark ignition engine and in controlled environment

Abstract: Increasingly strict emissions regulations and heightened environmental awareness on the part of users around the world have led to energetic research into emissions reduction by various automobile manufacturers and research institutes. In this paper we tested sol–gel TiO2 sensor in order to evaluate the reliability and combustion sensor properties in controlled environment and on spark ignition engine. Experiments were carried out for understanding influence of single gas component of flue gas on the response of TiO2 sensor and evaluate transducer behaviour on real spark ignition engine. Higher responses were obtained for oxygen and nitrogen oxide, rather than CO2 and CH4. So TiO2 sensor was more sensitive towards the first components of mixture, and good response times were observed on engine bench.

Liquefied petroleum gas (LPG) as an alternative fuel in spark ignition engine: Performance and emission characteristics

Abstract: In the present study, the performance and emission characteristics of a four-stroke spark ignition engine operated on liquefied petroleum gas (LPG) were investigated experimentally. The LPG was supplied from a LPG tank which was purchased from a local gas distributor. The primary content of LPG is 60% propane and 40% butane. The four-stroke spark ignition engine has an engine capacity of 183cc and a compression ratio of 6.3∶1, and it was coupled to a 5kW eddy current dynamometer for performance measurement. A 5-gas Non-Dispersive Infra-Red (NDIR) analyzer was used for CO, CO 2 , unburnt HC, and NO x measurement. Two sets of experimental data obtained were analyzed; (i) 100% gasoline, and (ii) 5%, 10%, and 20% of LPG in gasoline. It was found that in general, the engine's power output and torque suffer a drop in performance compared to 100% gasoline fueled engine, when tests were evaluated with 5%, 10%, and 20% LPG in gasoline. However, the brake specific fuel consumption, BSFC shows an improvement with LPG as a fuel replacement. The concentration levels of CO, CO 2 , unburnt HC, and NO x recorded are found to be lower than the gasoline fueled engine.