DIGITAL LIBRARY
INVESTIGATION OF THE IMPACT OF AN IMPLEMENTED ADDITIONAL LIQUEFIED PETROLEUM GAS (LPG) FUEL SYSTEM ON GASOLINE INTERNAL COMBUSTION ENGINES IN ENGINEERING TRAINING
University of Plovdiv Paisii Hilendarski (BULGARIA)
About this paper:
Appears in: ICERI2020 Proceedings
Publication year: 2020
Pages: 8892-8901
ISBN: 978-84-09-24232-0
ISSN: 2340-1095
doi: 10.21125/iceri.2020.1969
Conference name: 13th annual International Conference of Education, Research and Innovation
Dates: 9-10 November, 2020
Location: Online Conference
Abstract:
This article discusses the development of innovative technologies in LPG systems and the impact of propane-butane gas mixture on engine performance. The emphasis is placed on the impact of the training process in this field and the application of the acquired knowledge to improve the environmental situation. The main ecological characteristics of the operation of a gasoline engine in a mixture of gas and air are considered.
It is extremely important to get results, which will provide quality training to stakeholders, professionals and students in the field of automotive electronic systems. The interrelations of the considered topic with other disciplines in the field of transport equipment and technologies are also analyzed.
Guidelines have been developed for students so that they can perform test settings for combustion process control, both in naturally aspirated engines and positive-ignition engines. The emphasis is placed on the methodology for selecting optimal parameters of the system controller, based on complete up-to-date sensory information about the engine condition.
Because there is a difference in the octane number of gasoline and gas-air mixtures, their combustion characteristics are also different. Therefore, LPG engines must perform a specific adjustment of the software parameters to ensure the required quality of the combustion process and to meet environmental standards. This can be done with the use of modern innovative designs of LPG systems that have been developed recently.
The optimal setting of the controllers of these systems has a beneficial effect on the condition of the internal combustion engine and minimizes harmful emissions. The students must be trained to perform these procedures correctly based on the analysis of objective control data. This leads to a better understanding of the specifics of the material taught in the field as well as the better understanding of modern fuel controllers and their application for improving the environmental situation in cities. It is also an additional guarantee for their successful future professional realization.
The article presents the results of the study of two control groups of students. The first group is trained according to a traditional methodology based on existing LPG systems - the older generation. The training of the second group is based on the new innovative LPG fuel controllers and the methodology for their setup.
The methodology is justified in the following sequence:
1. Selection of engine type according to the fuel system.
2. Selection of suitable LPG systems for the engine with the necessary software.
3. Sequence of action during execution.
4. Testing the implemented LPG system.
5. Obtained results for the exhaust gases with a gas analyzer when working with LPG systems.
During the learning process, students make a series of measurements.
The educational emphasis in the training of students is the experience they gain during the training in working with specialized equipment and software related to the new innovative liquefied petroleum gas controllers.
Based on the presented results, students gain experience, knowledge and skills to analyse and make conclusions. Factors such as the reduction and decrease of harmful components in the treated gases have been proven.
The results of the comparative measurements of the content of harmful emissions in the exhaust gases during testing of a gasoline engine and the same engine running on LPG are presented.
Keywords:
Training, innovative LPG fuel controllers.