title: Combustion performance evaluation of air staging of palm oil blends.
abstract: The problems of global warming and the unstable price of petroleum oils have led to a race to develop environmentally friendly biofuels, such as palm oil or ethanol derived from corn and sugar cane. Biofuels are a potential replacement for fossil fuel, since they are renewable and environmentally friendly. This paper evaluates the combustion performance and emission characteristics of Refined, Bleached, and Deodorized Palm Oil (RBDPO)/diesel blends B5, B10, B15, B20, and B25 by volume, using an industrial oil burner with and without secondary air. Wall temperature profiles along the combustion chamber axis were measured using a series of thermocouples fitted axially on the combustion chamber wall, and emissions released were measured using a gas analyzer. The results show that RBDPO blend B25 produced the maximum emission reduction of 56.9% of CO, 74.7% of NOx, 68.5% of SO(2), and 77.5% of UHC compared to petroleum diesel, while air staging (secondary air) in most cases reduces the emissions further. However, increasing concentrations of RBDPO in the blends also reduced the energy released from the combustion. The maximum wall temperature reduction was 62.7% for B25 at the exit of the combustion chamber.
authors.affiliation: Department of Aeronautical Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM, Johor, Malaysia. nazri@fkm.utm.my
authors.forename: Mohammad Nazri
authors.initials: MN
authors.lastname: Mohd Jaafar
authors.forename: Yehia A
authors.initials: YA
authors.lastname: Eldrainy
authors.forename: Muhammad Faiser
authors.initials: MF
authors.lastname: Mat Ali
authors.forename: W Z
authors.initials: WZ
authors.lastname: Wan Omar
authors.forename: Mohd Faizi Arif
authors.initials: MF
authors.lastname: Mohd Hizam
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000517:prevention & control; D056804:Biofuels; D002248:Carbon Monoxide / Q000032:analysis; D003246:Conservation of Energy Resources; D005742:Gasoline; D006358:Hot Temperature; D006838:Hydrocarbons / Q000032:analysis; D009589:Nitrogen Oxides / Q000032:analysis; D000073878:Palm Oil; D010938:Plant Oils; D013458:Sulfur Dioxide / Q000032:analysis
chemical_list: D000393:Air Pollutants; D056804:Biofuels; D005742:Gasoline; D006838:Hydrocarbons; D009589:Nitrogen Oxides; D010938:Plant Oils; D013458:Sulfur Dioxide; D000073878:Palm Oil; D002248:Carbon Monoxide