How much does solar drying cost – Top 5 most popular applications today

How much is the price of a solar dryer is the question that customers are most interested in when contacting SUNSAY dryers. Through this article, SUNSAY dryer will provide complete information about solar dryer application and investment cost.

Dried bananas with a solar dryer
Dried bananas with a solar dryer

What is a solar dryer?

Solar dryer is a device that uses solar energy to dry substances, especially food, agricultural products,… Solar dryers use heat from the sun to remove moisture. of food.

Solar drying is a drying equipment that has been researched and developed in many parts of the world. Solar dryers operate by natural convection or by forced convection and are basically classified as:

  • Direct drying
  • Indirect drying
  • Dry the mixture. If there is an additional furnace with biomass or other heat sources, it is called a hybrid dryer.
  • Some solar drying equipment for agricultural products in Vietnam with specific products such as cocoa beans, rice, garlic bulbs and bamboo shoots

Direct solar dryer

Direct solar dryer to dehydrate the substance in direct sunlight. Historically, food and clothing were dried in the sun using wire, or by placing items on rocks or on top of tents.

In Mongolia, cheese and meat are still traditionally dried using the top of the tent (tent) as a solar dryer. In these systems, solar drying is aided by the movement of air (wind) which removes saturated air from the item being dried. More recently, complex drying racks and solar tents have been built as solar dryers.

A modern type of solar dryer with a black absorbing surface that captures light and converts it into heat; The substance to be dried is placed directly on this surface. These dryers may have housings, glass lids, and/or vents for increased efficiency.

Indirect solar dryer

In an indirect solar dryer, the black surface heats the incoming air rather than directly heating the substance to be dried. This heated air is then passed through the substance to be desiccated and regularly exits upward through a chimney, taking in the moisture that is released from the substance. They can be very simple, just a cold frame tilted in black fabric into an insulated brick building with active ventilation and backup heating.

One of the advantages of indirect systems is that it is easier to protect food or other substances from contamination whether blown by the wind or caused by birds, insects or animals. In addition, direct sunlight can chemically alter some foods making them less palatable.

What is the solar drying temperature?

Solar drying is mainly done in the range of 50-70 degrees Celsius. Solar dryers like SUNSAY and many other models now use polycarbonate sheets or UV-blocking glass to block the sun’s UV rays. does not penetrate food leading to dry food deterioration. The solar dryer not only helps to dry faster, but also prevents dirt, pathogens, bird droppings and the interference of external agents from affecting the quality of food. Food items such as fruits, vegetables, spices and other items after being dried by solar energy can be stored for a longer time.

Top 5 most popular solar dryer applications today.

Solar dryer for agricultural products

Solar seafood dryer

Solar herbal medicine dryer

What types of solar dryers are there?

Solar drying house – The simplest dryer line

Forced solar dryer

Drying equipment combined with solar collector

refrigeration dryer combined with solar drying

How much does it cost to invest in a solar dryer?

For any need for advice and support on drying solutions, please contact SUNSAY hotline by phone: 094 110 8888  we will support and advise in the most detailed way.

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