Solar Dryer Advantages And Disadvantages Pdf

1 a flat plate air heater and 2 a drying chamber.

Solar dryer advantages and disadvantages pdf. Solar greenhouse dryers are available in different size and design and are used for drying various crops and. Less risk of spoilage because of the speed of drying. Solar dryers are equipment generally of small capacity and based rather on empirical and semi empirical data than in theoretical designs. Solar dryers in parabolic domes allows water to run along the walls no contamination of goods by water better product quality color skin taste.

It has also advantages that crop are protected from dust rain insects animals etc. This type of solar dryer has two parts. The product is protected against flies pests rain and dust. The majority of the numerous solar dryer designs which are available are used mainly for drying of various crops either for family use or for small scale industrial production.

Productivity increase in terms of labour energy cost saving. However in the long term solar pumps are the cheaper option for irrigation this is because of the advantages already discussed no ongoing fuel costs long pump. The other solar dryer model has a simpler design and can be constructed by the farmer using local materials such as wood and bamboo. It is labour saving.

1 easy to assemble 2 cheap available materials can be used 3 simple to operate maintain and control and 4 light in weight. Heated air flows up the chimney to the outside of the dryer fresh replenishing air is drawn in other end of the dryer. 1 color deterioration of green fruit during dehydration and 2 decomposition of residual chlorophyll in the tissue under direct solar radiation. Advantages of solar dryers.

If the drying process is slow the fruit start to ferment and the product is spoilt. The cost depends on the size of the solar dryer and the materials used but is at least usd 150. Air is heated in the flat plate heater placed on the roof of the building or on the ground. Farmer cleaning the solar panels of the sf2 solar water pump disadvantage high upfront costs.

The upfront cost of solar water pumps can be a barrier to some farmers as you need to buy the water pump and panels all at once. Relative advantages and disadvantages of cabinet type direct solar dryers are. Advantages and disadvantages types of solar food dryers classification direct sun advantages least expensive disadvantages uv radiation can damage food simple indirect sun products protected from uv more. A solar dryer in which solar energy collection and drying take place in separate units is known as a distributed solar dryer.

One is completely constructed and delivered by the manufacturer. Read on for even more energy facts that you can share. The more authentic information about the advantages and disadvantages of solar energy you know the more likely people are to consider you a solar energy expert. Drying is faster because inside the dryer it is warmer than outside.