Injection Characteristics of Gasohol using a Common Rail Injection System

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Published: Jun 30, 2019
Keywords:
Gasohol Fuel Injection Characteristics and Common Rail Injection System

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Ronnachart Munsin
College of Integrated Science and Technology, Rajamangala University of Technology Lanna, 98 Papong, Doisaket, Chiangmai, 50220, Thailand
Ichkan Nattsirapong
Department of Mechanical Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna, 128 Huaykaew Rd., Chiangmai, 50300, Thailand
Nawee Nuntapap
Department of Mechanical Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna, 128 Huaykaew Rd., Chiangmai, 50300, Thailand
Jerawich Narkpakdee
Department of Mechanical Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna, 128 Huaykaew Rd., Chiangmai, 50300, Thailand
Ob Nilapai
Automotive Technology and Alternative Energy Research Group (ATAE), Faculty of Engineering at Sriracha, Kasetsart University, 199 Sukhumvit Rd., Chonburi, 20230, Thailand
Prathan Srichai
Department of Mechanical Engineering, Faculty of Engineering, Princess of Naradhiwas University, Naradhiwas, 96000, Thailand
Nattaporn Chaiyat
Thermal Design and Technology Laboratory (TDeT Lab), School of Renewable Energy, Maejo University, Nonghan, Sansai, Chiangmai, 50290, Thailand

Abstract

The worldwide emission regulations for compression ignition (CI) engines have become more stringent driven by global warming issues and public health concerns. A promising solution to decrease greenhouse gas and emissions from CI engines is gasohol considered as a fuel-replacing diesel. The objective of this study is to study effect of gasohol on fuel injection characteristics of a common rail injection system used in CI engines. Gasohol E85, containing 85% ethanol and 15% gasoline, is tested and conventional diesel is a reference fuel. An injection measurement device based on Zeuch method was used for investigating the injection characteristics including injected amount and discharge coeffi cient. Gasohol were injected with both single and double injection strategies at a constant injection pressure of 450 bar into a back-pressure of 40 bar. The fi ndings of this study clearly show that injection characteristics of gasohol were signifi cantly differed from those of diesel, due to physical properties changed. At the same injection conditions, injected fuel rate are different.

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Vol. 5 No. 1 (2019): JANUARY - JUNE
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Articles
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This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.

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