Drying is an important mass transfer operation performed in various pharmaceutical and chemical industries. There are several types of drying equipments which can be operated at batch and continuous mode. Drying phenomenon and design of drying equipment holds lot of parameters which influence them but drying efficiency was found to be an important factor interrelating most of the other parameters of drying. Batch dryers like air tray dryer and hot air oven are taken for investigation of drying efficiency. Here the amount of moisture removed is increased with increase in time. Our study aims on examination of drying efficiency for batch dryers used in laboratory and to suggest a best dryer for laboratory use.
