Combustion Performance and Emissions in Multipoint Port Fuel Injection Engines with Liquefied Petroleum Gas Fuel Injection

Ammar K. Saleh

doi:10.52716/jprs.v16i1.1038

Authors

Ammar K. Saleh State Company for Gas Filling and Services, AL Qadisiyah gas branch, Ministry of Oil, Iraq.

DOI:

https://doi.org/10.52716/jprs.v16i1.1038

Keywords:

الكلمات المفتاحية: نظام توصيل الوقود، عملية الاحتراق، نواتج الانبعاثات الثانوية، ضبط التحكم في الخمول، كفاءة خرج الطاقة

Abstract

Fossil fuels used in internal combustion engines are some of the worst polluters and harm our environment and this fuel is the highest economic cost; hence the need to use other fuels with lower shared concern is reserved for the ecological impact and the least efficient cost. As such, the researchers have been able to use several other types of low-level fuels such as the Liquefied Petroleum Gas mixing 50, 75, and 100. This study is focused to performance of the liquefied petroleum gas as compared to gasoline and emissions from the four-stroke spark ignition at constant pressure ratio of 10:1, variable speed of 1000–2000 rpm. The indicated volumetric efficiency in this case has negative changes with increasing speed of the engine, and when using liquefied petroleum gas fuel. An improvement in volume efficiency, brake thermal efficiency, emission of gases such as HC, NOx, CO₂, CO and fuel consumption rates show that values have been raised and consumption rates by fuel optimized. The results show an improvement in the fuel consumption, combustion thermal efficiency and other aspects related to the combustion of the liquefied petroleum gas fuel compared to the pure gasoline. The HC, NOx, CO₂, and CO emissions are reduced while operating with liquefied petroleum gas as a fuel.

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