Experimental study of feasibility of orange peel oil as a partial replacement for gasoline fuel in SI engine with and without MAO coated piston. (1st May 2022)

• Record Type: Journal Article
• Authors: Saravanan, C.G.; Vikneswaran, M.; Prasanna Raj Yadav, S.; Edwin Geo, V.; Sasikala, J.; Ashok, K.; Muthukumaran, N.
• Is Part Of: Fuel. Volume 315(2022)
• Publication Date: 2022-05-01
• Subjects: 2MF 2-methyl furan -- AST After Start Timing -- aTDC after Top Dead Centre -- BTE Brake Thermal Efficiency -- CAD Crank Angle Degree -- CO Carbon monoxide -- CO2 Carbon dioxide -- CR Compression Ratio -- GHG Greenhouse Gas -- GC–MS Gas Chromatography-Mass Spectroscopy -- HC Hydrocarbon -- LDV Light Duty Vehicle -- LII Luminous Intensity Index -- LPO Lemon Peel Oil -- MAO Micro Arc Oxidation -- NOx Oxides of Nitrogen -- OPO Orange Peel Oil -- OPO10 OPO 10% + gasoline 90% -- OPO20 OPO 20% + gasoline 80% -- OPO30 OPO 30% + gasoline 70% -- RON Research Octane Number -- SI Spark Ignition -- VVT Variable Valve Timing; Spark ignited engine -- Orange peel oil -- Gasoline -- MAO coating -- Endoscope; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2022.123173
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: Orange peel oil (OPO) was blended with gasoline in the ratio of 10:90, 20:80, 30:70. The piston crown was coated using a micro-arc oxidation process. In-cylinder combustion flame was visualized using combustion chamber endoscopy. BTE of OPO10 blend with coated piston was comparable to gasoline without coated piston. Coated piston reduced the HC and CO emissions of OPO10 blend by 3.1% and 3.6% Abstract: The scope of this work investigates the feasibility of using orange peel oil (OPO)–gasoline blends in a spark-ignition engine for the first time. Initially, fuel characterization of OPO is performed, and the fuel properties are reported. Subsequently, engine experiments were performed in a spark-ignition engine at a constant speed with different engine loads. Coating studies were performed by coating the engine piston based on the micro-arc oxidation technique with a view of improving the engine performances and emissions. Then, the in-cylinder combustion images were visualized using AVL visioscope software to justify and explain the experimental engine findings. The experimental engine results reveal that OPO10 (10% OPO + 90% gasoline) showed slightly lesser brake thermal efficiency and nitrogen oxide and higher hydrocarbon and carbon monoxide emissions when compared to gasoline. With the increase in the fraction of OPO in the blend, the combustion is delayed, and the maximum net heat release is reduced due to unfavourable physical properties of OPO, such as increased boiling range and viscosity. With coating, the limitations with the physical properties of OPO are overcome as the prevention in heat losses favoured the combustion. The BTE of OPO10 with coated piston is comparable to that of gasoline without coated piston, whereas HC and CO emissions were lowered by 3.1% and 3.6%, respectively. In-cylinder combustion images showed that the diffusion flames are predominant for higher blends of OPO. With coating, the premixed combustion is improved in that OPO10 showed less diffusion fraction compared to gasoline. Overall, the fundamental flame investigation study justifies the experimental engine findings of the OPO fuelled SI engine.