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The innovative solutions and the development of a low-energy air dryer

Drying is one of the most energy-intensive industrial processes, regardless of the processing material. In the industrial food production, drying can be used as the only step for food preservation and/or as a preparation stage in food processing. However, the quality of final dried product is a priority that need to be accomplished. This study will present the innovative solutions and development of a low- energy air dryer based on heat pump for application in food drying. The given solution, with a closed circulation of relatively low temperature air (up to 70 °C), proved to be very successful for production of high quality dried food.

low-energy air dryer ; energy efficiency ; food

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