COSTECH Integrated Repository

Spray Atomization of Bio-Oil/Ethanol Blends with Externally Mixed Nozzles

Show simple item record

dc.creator Lujaji, Frank
dc.creator Boateng, Akwasi A.
dc.creator Schaffer, Mark A .
dc.creator Mtui, Peter L.
dc.creator Mkilaha, Iddi
dc.date 2016-07-12T08:57:07Z
dc.date 2016-07-12T08:57:07Z
dc.date 2015-09
dc.date.accessioned 2018-03-27T08:37:56Z
dc.date.available 2018-03-27T08:37:56Z
dc.identifier Lujaji, F.C., Boateng, A.A., Schaffer, M., Mtui, P.L. and Mkilaha, I.S., 2016. Spray atomization of bio-oil/ethanol blends with externally mixed nozzles. Experimental Thermal and Fluid Science, 71, pp.146-153.
dc.identifier http://hdl.handle.net/20.500.11810/3098
dc.identifier 10.1016/j.expthermflusci.2015.10.020
dc.identifier.uri http://hdl.handle.net/20.500.11810/3098
dc.description Full text can be accessed at https://www.deepdyve.com/lp/elsevier/spray-atomization-of-bio-oil-ethanol-blends-with-externally-mixed-yqd3PUWqDI
dc.description Experiments were conducted to investigate the properties of sprays of pyrolysis oil (bio-oil) blends with ethanol using an air assisted atomization nozzle operated without combustion. This was done in order to explore the potential for pyrolysis oil combustion in industrial and residential furnaces. The liquid samples investigated were bio-oil blends with ethanol (EtOH), neat ethanol and diesel. The bio-oil:EtOH blends were prepared in concentrations of 20:80 and 40:60vol%. Twin-fluid externally mixed nozzles SU2, SU4, and SU5 with liquid orifice areas of 0.40, 1.82 and 5.07mm2, respectively, were used in the spray experiments. The liquid and atomizing air flow rates as well as temperature were controlled to maintain constant liquid flow rates (cc/s) equivalent to 30 and 50kW energy input. Images of atomized spray droplets were measured to determine their size and velocity. Results show that it is possible to spray bio-oil/ethanol mixtures containing up to 40% bio-oil that has a low water content (12.60%). High viscosity and a tendency to coagulate were the main drawbacks; however, the 20:80 bio-oil:EtOH blend and neat ethanol in all three nozzles exhibited spray characteristics similar to that of diesel over atomization air flow rates of 15-30SLPM.
dc.language en
dc.subject Spray Atomization
dc.subject Pyrolysis oil
dc.subject Biomass
dc.title Spray Atomization of Bio-Oil/Ethanol Blends with Externally Mixed Nozzles
dc.type Journal Article


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search COSTECH


Advanced Search

Browse

My Account