Investigation on Firing Behavior of the Spark-Ignition Engine Fueled with Methanol, Liquefied Petroleum Gas (LPG), and Methanol/LPG During Cold Start

2008 ◽  
Vol 22 (6) ◽  
pp. 3779-3784 ◽  
Author(s):  
Changming Gong ◽  
Baoqing Deng ◽  
Shu Wang ◽  
Yan Su ◽  
Qing Gao ◽  
...  
Author(s):  
Makoto Koike ◽  
Tetsunori Suzuoki ◽  
Tadashi Takeuchi ◽  
Takayuki Homma ◽  
Satoshi Hariu ◽  
...  

2021 ◽  
Vol 877 ◽  
pp. 141-146
Author(s):  
David Lie ◽  
Tjokorda Gde Tirta Nindhia ◽  
I Wayan Surata ◽  
Nengah Wirawan

The available of conventional fuels are fluctuating depend on distribution from the source production to consumer. The availability of biogas as renewable energy is increasing due to establishments of many organic wastes processing worldwide. The need of electricity to support daily life activity is a must, but the availability of electric source in remote area is limited especially for a farm that far away from commercial line distribution of electricity. This work is dedicated to solve this problem. The single cylinder 4 stroke spark ignition engine (83 cc) was designed to be able to be fuelled flexibly by using biogas or liquefied petroleum gas (LPG), or gasoline if sometime the biogas not available during initiation of the process or during maintenance of anaerobic digester. The engine is still can be run to provide electricity by using conventional fuel such as LPG or gasoline. The full consumption as well as emission of this flexible fuel engine was investigated. It is found that the fuel consumption is 9.97 L/mint for Biogas, 0.004 L/mint for gasoline and 2.24 L/mint for LPG. Surprisingly by using biogas the emission of carbon monoxide (CO) was down to almost zero (0.02 ppm), comparing gasoline 0.32 ppm, and LPG 0.4 ppm.


2009 ◽  
Vol 23 (11) ◽  
pp. 5394-5400 ◽  
Author(s):  
Jun Li ◽  
Changming Gong ◽  
Yan Su ◽  
Huili Dou ◽  
Xunjun Liu

2019 ◽  
Vol 22 (1) ◽  
pp. 184-198
Author(s):  
Mikiya Araki ◽  
Katsuya Sakairi ◽  
Takashi Kuribara ◽  
Juan C González Palencia ◽  
Seiichi Shiga ◽  
...  

In a four-stroke cycle port-fuel-injected spark-ignition engine, a significant portion of unburned hydrocarbons is exhausted during the short period of cold start. The aim of this study is to investigate the physics behind the wall-wet phenomena and its determining parameter as simply as possible even though qualitative to some extent. The test engine is driven at a constant speed of 350 r/min. The fuel injection starts at a certain cycle, and the cycles required for the first ignition is counted. Three gasoline injectors having different atomization characteristics are used for port fuel injection, and the droplet size, the spray angle and the spray velocity are varied independently. The fuel transport phenomena from the injector to the cylinder are characterized by only two parameters, α and β, the mass fraction of the fuel without wall-wet and the mass fraction of the evaporated fuel from liquid films on walls. They are determined so that all the first ignition cycles observed experimentally are consistently reproduced by the model. The value of α is successfully determined for every single injector, and it increases monotonously with the decrease in the Stokes number.


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