Polytechnic University of Valencia Congress, 21st International Drying Symposium

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Energy analysis and conservation opportunities in spray dryers
Sanjay Kumar Patel, Mukund Haribahu Bade

Last modified: 02-01-2019


Dryers are used for removal of moisture from an raw materials (such as effluent) to form a dried solids as per the requirements. For removal of the moisture, energy requirement is huge. Therefore, in this paper, methodology for heat recovery in one of the type of dryers as spray dryers is developed, which is simple and easy to apply. The proposed methodology is illustrated with the help of an example taken from literature. It is observed that the indirect heat recovery method could save energy maximum up to 82 % as compared to literature and 41 % higher than without heat recovery.

Keywords: Spray dryer, pinch analysis, heat recovery, effluent drying, energy saving

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