Analysis of initial condensation and the effects of distillers' spent grain pellet orientation and superheated steam operating parameters on effective moisture diffusivity

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dc.contributor.authorBourassa, Justin
dc.contributor.examiningcommitteeChen, Ying (Biosystems Engineering) Soliman, Hassan (Mechanical Engineering)en_US
dc.contributor.supervisorCenkowski, Stefan (Biosystems Engineering)en_US
dc.date.accessioned2015-08-18T15:28:21Z
dc.date.available2015-08-18T15:28:21Z
dc.date.issued2015
dc.degree.disciplineBiosystems Engineeringen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractDistillers’ spent grain (DSG) is a by-product of ethanol production and used for swine feed supplement due to its nutrient composition. Lowering the moisture content of DSG using superheated steam (SS) drying can be more energy efficient compared to hot air drying. One objective was to investigate parameters associated with SS drying on DSG including maximum condensation, condensation time, and restoration time. Increasing SS temperature from 120 to 180 °C and SS velocity from 1.0 to 1.4 m/s resulted in a 97% and 67% decrease in maximum condensation, respectively. Another objective was to determine the effect of SS temperature, velocity, and pellet orientation on effective moisture diffusivity of DSG pellets. The diffusion model was based on finite cylinder geometry accounting for volumetric shrinkage. The diffusivity coefficient was determined to be 1.56 × 10-8 m2/s. A significant effect of pellet orientation on moisture diffusivity was found during the constant drying-rate period.en_US
dc.description.noteOctober 2015en_US
dc.identifier.urihttp://hdl.handle.net/1993/30667
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectDistillers' spent grainen_US
dc.subjectDiffusivityen_US
dc.subjectInitial condensationen_US
dc.subjectFinite cylinderen_US
dc.subjectSuperheated steamen_US
dc.titleAnalysis of initial condensation and the effects of distillers' spent grain pellet orientation and superheated steam operating parameters on effective moisture diffusivityen_US
dc.typemaster thesisen_US
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