ISSN 2308-4057 (Печать),
ISSN 2310-9599 (Онлайн)


Low temperature preservation of perishable produce is a widespread technology of it's long-term conservation, at the same time freezing of foods being an extremely power-consuming process. When developing low temperature preservation technology it is important to aim both at retaining high quality of frozen food and improving the energy efficiency of the processes. This article presents the results of research that explores the energy efficiency when freezing the sea buckthorn ( Hippophae rhamnoides ) fruits in a fluidized bed quick freezer. The study offers a method to calculate an amount of energy consumed in the freezing process of the sea buckthorn cultivars in an air-blast quick freezer. It also outlines geometrical and mass parameters of the cultivars. The study simultaneously demonstrates an air flow rates calculation for the sea buckthorn fruits fluidization to occur; defines the air circulation energy cost at a velocity necessary for fluidization to be accomplished at different air temperatures, and calculates the energy consumption to produce an artificial cold to ensure the required temperatures of heat transferring air. Further, the article conducts an analysis of the overall interconnected factors that impact the berries freezing energy consumption. Based on data obtained through research the authors reveal the energy efficient regimes of the sea buckthorn fruits low temperature treatment in an air-blast quick freezer; types of refrigerating machines and refrigerant that would ensure the less power consuming quick freezing of the sea buckthorn. The research used the species grown in Kemerovo region.
Ключевые слова
Sea buckthorn, quick freezing, freezing technologies energy efficiency
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