Drying - Pharmaceutical Engineering PDF
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Krishna Institute of Pharmacy, Karad
Mrs. S.B. Udugade
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Summary
This presentation covers the fundamentals of drying, focusing on definitions, application, theory, and different types/methods. It includes formulas, various drying curves and the concept of equilibrium moisture content (EMC).
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Subject – Pharmaceutical Engineering DRYING Presented By, Mrs. S.B. Udugade, Associate Professor, Dept. of Pharmaceutics, KVV’s, Krishna Institute of Pharmacy, Karad Content 1. Definition of Drying 2. Difference between Drying and Evaporat...
Subject – Pharmaceutical Engineering DRYING Presented By, Mrs. S.B. Udugade, Associate Professor, Dept. of Pharmaceutics, KVV’s, Krishna Institute of Pharmacy, Karad Content 1. Definition of Drying 2. Difference between Drying and Evaporation 3. Application of Drying 4.Theory of Drying 5.Drying curve Difference Between Drying & Evaporation Some Important Formulae Drying Curve 1. Region AB on graph(Initial Adjustment period ) cooling 2. Region BC on graph (Constant Rate Period ) 3.Region CD on graph(First falling Rate period) 4. Region DE on graph(Second falling Rate period ) 5. E Point on the graph Types of Dryers- 1) Static Bed dryer No relative movement of solid e.g. Tray Dryer 2) Moving Bed Dryer Movement of Solid e.g. Drum dryer, Fluidised Bed Dryer Static Bed dryer No relative movement of solid TRAY DRYER Construction- Rectangular heating chamber with insulated walls Trays are placed in heating chamber. Fan- for circulation of hot air Heater or heating elements- to heat the air Working -
