What is Solar Dryer? Explain Types Of Solar Dryer?

The answer of what is solar dryer...

The devices known as solar dryers use sun energy to dry materials, most notably food. Sun dryers use the sun's heat to reduce the amount of moisture in food.

Another invention that uses solar energy to preserve fruits, vegetables, and harvests for later use is the solar drier. There are two types of solar dryers: direct and indirect. With solar energy dryers, the material to be dried is spread out on a large field and exposed to the sun.

The basic idea behind sun drying is to harness solar energy by warming the air within solar collectors, then direct that heated air into the drying chamber. The drying chamber is filled with the items that need to be dried.

Produce is more or less efficiently exposed to the wind while being directly exposed to solar radiation during sun drying. The food is dried using solar energy while the air it comes into touch with is heated by the sun. We provide the most efficient solar rooftop systems that save you money and energy.

What is solar dryer?

Sun dryers are machines that use the sun's energy to dry materials, particularly food. The heat from the sun is used by solar dryers to decrease the amount of water in food products. The two main categories of solar dryers are direct and indirect.

Food is traditionally dried by being left out in the open, in the sun. For little amounts of food, this technique, also known as air drying or natural drying, works well.

The quantity of food that must be dried in the sun requires a larger surface area, so when food is stored outside, it is vulnerable to contamination.

Since management and monitoring become more challenging as food quantity increases, this is one of the chief factors why sun-drying is difficult to accomplish with bigger amounts of food.

How is the solar dryer operated?

The solar drying method employs indirect solar radiation, unlike sun drying, which exposes food to direct sunlight. 

The basic idea behind sun drying is to harness solar energy by warming the air within solar collectors, then direct that heated air into the drying chamber. The drying chamber is filled with the items that need to be dried.

The drying of something like the meat is more sanitary in this enclosed system, which consists of a solar concentrator and a chamber, because there is no regular exposure of the meat to the atmosphere and no secondary contamination of the goods by rain, dust, bugs, rodents, or birds.

What is Solar Dryer? Explain Types of Solar Dryer?

The 3 different types of solar dryers

1. Natural convection solar dryer

The building is made up of three primary parts: a solar chimney, a drying tank, and a solar collector. Smaller-sized natural convection solar dryers are simply wood boxes with vents on the top and bottom.

On storyboards that fit into the boxes, food is inserted. The bottom of the boxes is attached to a suitably sized solar-powered air conditioner with south-facing plastics glass and a black metal absorber.

The black metal absorbed in the solar air heater heats the air as it enters from the bottom. Along the food, the heated air rises and leaves via the vent at the top.

2. Utilizing forced convection, a solar dryer

A fan is used to apply forced convection to the meal. The construction of convective dryers may be somewhat similar.

But, the forced convection dryer needs power so that the fans can circulate the air. As long as the collector is horizontal, with the fans at one end and the dry pan at the other, the forced convection drier may be used without needing an inclination for the airflow.

Food loss can be avoided by adding a forced convection flow, such as that produced by a PV solar cell attached to a fan.

3. Tunnel solar dryer

A tunnel dryer's structure is rather straightforward, and its wall is made of the heat-resistant polyethylene material. The construction is large enough even for one individual to get inside, unlike other styles of dryers.

How can a solar dryer be made?

A reflecting mirror and basic materials that are readily available on all big surfaces are all that are needed to make a sun dryer.

What benefits can a solar dryer offer?

There are various socioeconomic benefits to this technology. Food security is one of the biggest issues confronting developing nations today.

By utilizing this renewable energy, the solar dryer can increase food security by enabling food that has been dried to be preserved better than undried food by Solar Rooftop Company in Rajkot.

Comparing to the sunlight drying method, the solar dryer speeds up and simplifies the drying of food.


Many best Solar Rooftop Company in Rajkot. The alternative that uses the least energy is a heat-pump dryer. A heat-pump dryer uses heat extracted from a house's air to warm the air within the dryer.

A heating element is necessary for a typical electric dryer. Hybrid dryers are those that combine the two technologies. Some Solar Rooftop Company in Rajkot provide best services for all solar related problems.

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