Wattananusorn, Santi
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Preferred name
Wattananusorn, Santi
Alternative Name
Wattananusorn, S.
Main Affiliation
Email
santi.wa@kmitl.ac.th
3 results
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Item type:Publication, Explicit analytical solution for drying kinetics of flat materials(2009-02-01)This research features a theoretical framework to describe the transport of moisture content in convective drying of flat materials. A new set of formulations is developed on the basis of the spreading-pressure concept as the driving force rather than using the traditional Fick's law. The suggested method also provides a possibility to abandon both conventional isotherms: the two-parameter Brunauer-Emmett-Teller (BET), and the three-parameter Guggenheim-Anderson-de Boer (GAB) models. As a result, the proposed procedure creates a moisture dependent diffusivity embedded in a certain non-linear diffusion equation which can be solved explicitly. © 2009 Pleiades Publishing, Ltd. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, New space-averaging procedure for inhomogeneous flow fields using balance equation formulations(2006-09-01)This paper features the possibility of averaging space-dependent flow fields using a coupling factor that links the equations of momentum and energy. The scheme is applied to the mean velocity, which is derived straightforwardly through the continuity equation. It creates a small imbalance, which can be eliminated later completely. Smaller discrepancies in the integration of systems of balance equations for inhomogeneous flow are the consequence. The procedure is verified on various flow patterns, and comparisons are made with other conventional methods and with some available experimental data. Despite investigating only numerical examples of incompressible flows here, the technique, in principle, is capable of dealing with compressible flows as well. Furthermore, the proposed method discards some variables required in other techniques while still providing useful and acceptable results for practical problems. © IMechE 2006. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Determination of membrane resistance for cross-flow microfiltration in a rectangular module including back-flow(2008-01-01)In the current note, the previously developed semiempirical models are incorporated, based on blocking filtration laws, with an approach by using a higher-order pressure function over the membrane surface providing the local non-linear characteristic of the transmembrane pressure during discontinuous semibatch processes. Consequently, the flux predictions of a continuous cross-flow microfiltration system with back-flow across a membrane module are appropriately modified for more accurate formulations of membrane resistance. © IMechE 2008.