Tunnel Construction

The process which involves deliberate removal of moisture from a product is termed as drying. Various agricultural products such as vegetables, fruits, fish, coffee, cocoa, coconut and tobacco are being dried using open-air drying technique. But in open-air drying, since there is little control over drying rates, crops can either be over-dried or under-dried. Over-drying the crops in the sun can cause discoloration, bleaching and scorching, loss of germination power, and reduction in nutritional value. On the contrary, under-drying leads to the development of bacteria and fungi. Thus, drying under controlled conditions of temperature and humidity helps the crop to dry reasonably rapidly to a safe moisture content level and ensure a superior quality of the product.To have a valuable quality product and to minimize the wastage, artificial drying of the product should be employed. The earlier dryers used conventional fuels like electricity, coal and fossil fuel to heat ambient air for drying purpose. Drying of agricultural product is an energy intensive operation. High cost of fossil fuel and gradual depletion of its reserve has incited the use of solar energy as an alternative energy source for dryers. Solar dryers can find wide-spread applications in tropical and sub-tropical countries because of the following reasons : The amount of solar energy available in most cases is high enough to cover the heat requirement of small dryer units as well as the temperature level required for optimal drying of the crops. The technology is much easier to adapt than fully mechanised technologies. Solar dryers can be easily constructed using local and cheap raw materials. Factors Governing Solar Drying : Solar drying is a continuos process where moisture content, air and product temperature, and the humidity of air all change simultaneously along with the two basic inputs to the system: the solar insolation and the ambient temperature. The drying rate is affected by ambient climatic conditions. These include: Temperature Relative humidity Available solar insolation Wind velocity Frequency and duration of rain-showers during the drying period Consultation for the Coconut Value added products. Our organization is into innovative ideas iin value added products in coconut. We have identified more than 175 products in coconut by using complete coconut tree as the raw material.We have identified the products of coconut tree in Food Energy Renewable energy Clean technology Textile industrial products Decorative items House holds item Plant growing materials Construction materials, like flooring tiles, wall cladding and roofing etc. Our latest innovative product of coconut is partial board out of coconut bio mass. Which is first kind of the innovation done in the coconut industry. Which can replace wood.

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