A Two-dimensional Superheated Steam Impinging Stream Dryer: A Computational Model

• Autorzy: Mujumdar A. , Hosseinalipour S. , Devahastin S.
• Języki publikacji: EN

Abstrakty

EN

A computational study was performed to predict the drying performance of a novel two-dimensional impinging stream dryer using superheated steam as the drying medium. The dryer is basically a flash dryer consisting of an opposing jet configuration. Assuming constant rate period drying kinetics, the drying behaviour of superheated steam-particle mixtures flowing in a turbulent two-phase flow is modelled by solving the coupled mass, momentum and energy conservation equations along with a turbulence model for the gas-particle flow. The effects of various operating parameters on the performance of the impinging stream dryer are investigated and discussed. It is evident from the simulation that a considerable amount of moisture can be removed even over a short overall residence time of the particles in the impinging stream system.

Słowa kluczowe

EN

computational fluid dynamics CFD; drying performance; gas-particle flow; heat and mass transfer; turbulence modelling

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2000
• Tom: Vol. 48, nr 3
• Strony: 287--299
• Opis fizyczny: 8 rys., bibliogr. 8 poz.

Twórcy

autor

Mujumdar A.

autor

Hosseinalipour S.

autor

Devahastin S.

• Department of Chemical Engineering, McGill University, 3610 University St., Montreal, Quebec, Canada H3A 2B2