Publication: Air assist atomization characterization of palm biodiesel through experimental investigation and CFD simulation
Date
2017
Authors
Tan E.S.
Anwar M.
Kumaran P.
Indra T.M.
Yoshikawa K.
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor and Francis Ltd.
Abstract
The depletion of fossil fuel and environmental concerns have elevated biodiesel to emerge as a suitable alternative fuel to substitute diesel fuel. The study of spray formation is essential to improve the combustion systems of internal combustion engines and gas turbines. This paper aims to study the atomization characteristics of biodiesel derived from palm biodiesel through experimental test and simulation. The chemical fuel properties of biodiesel such as viscosity and density, will adversely affect the spray characteristics such as spray pattern, spray length, spray angle and Sauter Mean Diameter. The biodiesel fuels are blended with diesel in various ratios before being tested in an atomization test rig. Modelling of the atomizer are presented using computational fluid dynamics whereby comparisons are made with respect to the experimental results carried out in the atomizer test rig. There is no large discrepancy with the simulation results. The results showed that the higher content of biodiesel gives a larger droplet size and longer spray length. However, it produces smaller spray angle and spray width but with clearer vortex shape of spray pattern. � 2016 Informa UK Limited, trading as Taylor & Francis Group.
Description
Alternative fuels; Atomization; Biodiesel; Combustion; Diesel fuels; Drop breakup; Fluid dynamics; Fossil fuels; Fuels; Gas turbines; Internal combustion engines; Spraying; Two phase flow; Atomization characteristics; Computational fluid dynamics simulations; Environmental concerns; Experimental investigations; Sauter mean diameter (SMD); Spray angle; Spray characteristics; Spray pattern; Computational fluid dynamics