Prospects for improving high-efficiency microwave-vacuum dryers based on renewable energy sources
Keywords:
microwave-vacuum drying, renewable energy, solar photovoltaic system, energy efficiency, specific energy consumption, solid-state microwave generator, hybrid drying, energy storageAbstract
This article examines prospects for improving high-efficiency microwave-vacuum drying technology using renewable energy sources, primarily solar photovoltaic systems. The energy characteristics of microwave-vacuum drying, its compatibility with renewable electricity, and the benefits of low-temperature drying under vacuum for product quality are discussed. Technical improvement pathways are compared, including the transition from conventional magnetrons to solid-state microwave generators, variable-frequency control of vacuum pumps, heat recovery, energy storage, and digital monitoring. Equations for moisture ratio, specific energy consumption, and drying efficiency are introduced to strengthen quantitative assessment of the process. The practical potential of solar energy in Uzbekistan, particularly in the Bukhara region, is considered using photovoltaic plants at Bukhara State University as a local case.
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