Abstract:
This paper is based on the project “Design and Fabrication of Vacuum Groundnut Dryer”. This is a design innovative project. The project provides solution for drying groundnuts in efficiently and economically.
Groundnut is one of the major oil seeds of India. In our Country the drying of unshelled groundnut is carried out mostly in natural lights which take longer times. Moreover the harvesting of groundnut takes place during rainy season, which affects the drying time and quality. Groundnut accounts for around 28% of the total oilseed production of the country. Annual production of seed and oil are around 5-8 and 1.5 million tons respectively. Due to industrialization of Indian economy, labour cost is becoming high for agricultural and related activities. Labour availability is also less. So there is need for alternative method in agricultural processes. Like most other agriculture crops, groundnuts are semi perishable and their quality during storage can be deteriorated through microbial proliferation, insect and rodent infestation, loss of flavor, viability and rancidity due to biochemical changes as well as absorption of certain odours and chemicals. After going through the advantages and principles of the vacuum drying technique, and keeping the problems faced by the Indian farmers in mind, an attempt has been made for drying groundnut with the help of vacuum energy. That’s this project called VACUUM GROUNDNUT DRYER. The operating characteristics of the vacuum drying process result in significant advantages in terms of productivity, quality and energy consumption.
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