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Learning about spray technologies

By Chemical Engineering |

Spray nozzles are very useful tools with a simple concept and sometimes complex design. Earlier this year, I attended the 26th Annual ILASS (Institute for Liquid Atomization and Spray Systems; www.ilass.org) Conference in Portland, Ore., which was held on May 19–21. There were roughly 100 attendees, including representatives from Canada, Germany and Mexico, as well as the U.S. Over 50 presentations were given by speakers from universities, think tanks, government agencies and industry. The variety of topics covered is illustrated in the following brief descriptions of some of those presentations: Spray Systems Co. (Wheaton, Ill; www.spray.com) used computational fluid dynamics (CFD) to model spray columns for wet fluegas desulfurization (WFGD) units; they also used a variety of spray evaluation devices to study the application of a thin layer of peanut oil onto a flat surface (regarding the latter study, a CFD analysis of the spray did not predict the spray angle very well). Kathleen Feigl, of the Michigan Technological University (Houghton, Mich.; www.mtu.edu), addressed small water droplets entering a crossflowing hydrocarbon stream using numerical simulations; the study has relevance to membrane devices. Anne Geppert (University…
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