Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1121
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dc.contributor.authorKorese, J. K.-
dc.contributor.authorHensel, O.-
dc.date.accessioned2017-09-12T08:37:10Z-
dc.date.available2017-09-12T08:37:10Z-
dc.date.issued2016-
dc.identifier.issnISSN 0883-8542-
dc.identifier.urihttp://hdl.handle.net/123456789/1121-
dc.description.abstractDesigners of forced air handling systems require data on resistance to airflow for accurate selection of fans and mathematical prediction of pressure drop and airflow patterns. In this research, resistance to airflow of sweet potato leaves and chopped sweet potato aerial vines dried in an experimental cabinet dryer was measured to determine the effect of airflow rate, moisture content and bulk depth. Five levels of moisture contents (88.7%, 74.7%, 52.9%, 26.8%, and 11.0% w.b.) for sweet potato leaves and (88.1%, 69.1%, 52.2%, 35.0%, and 12.2% w.b.) for chopped sweet potato aerial vines, respectively, and four levels of bulk depths (0.30, 0.45, 0.60, and 0.75 m) were investigated at airflow rates ranging from 0.0206 to 0.2342 m3 s-1 m-2. Results indicated that airflow, moisture content, and bulk depth have significant (P < 0.01) effect on airflow resistance of sweet potato leaves and chopped sweet potato aerial vines. Equations that relate pressure drop to airflow rate, moisture content, and bulk depth were developed based on the Hukill and Ives (1955) equation through the implementation of empirical “de-rating” factors and the coefficients obtained by regression analysis. The developed models provided a good fit to the experimental pressure drop data obtained in the range of conditions investigated. Also, comparison of the pressure drop data in this study with marigold flowers cited in the literature shows that the resistance to airflow for both sweet potato leaves and chopped sweet potato aerial vines was lower than that of marigold flowers. The pressure drop curves for sweet potato leaves however had a steeper slope than the marigold flowers. Bulk density which varied from 29.57 to 112.63 kg m-3 for sweet potato leaves and 83.99 to 317.23 kg m-3 for chopped sweet potato aerial vines was significantly affected by moisture contenten_US
dc.language.isoenen_US
dc.publisherAmerican Society of Agricultural and Biological Engineersen_US
dc.relation.ispartofseriesVol. 32;Issue 4-
dc.subjectBulk depthen_US
dc.subjectBulk densityen_US
dc.subjectChopped aerial vinesen_US
dc.subjectCurves leavesen_US
dc.subjectMoisture contenten_US
dc.subjectSweet potatoen_US
dc.titleRESISTANCE TO AIRFLOW THROUGH SWEET POTATO AERIAL VINE COMPONENTSen_US
dc.typeArticleen_US
Appears in Collections:Faculty of Agriculture, Food and Consumer Sciences

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