Please also give references.
What are the advantages and disadvantages of solar crop driers.
Drying is faster because inside the dryer it is warmer than outside.
This technique changed very little from its early prehistoric uses.
The sun s free energy for drying in open air is counterbalanced by a multitude of disadvantages which reduce not only the quantity but also the quality of the final product belessiotis and delyannis 2009 1.
Suggest remedies for the disadvantages.
Different value creation possible since dried products have higher margins.
Productivity increase in terms of labour energy cost saving.
High hygienic standards no dust no pollution no fungus no animals no foreign materials etc.
The drying process is completed in the most hygienic and eco friendly way.
More skilled personnel are also required to operate the system.
What factors determine the type and size of solar collectors for crop drying.
Solar drying systems have low operation and maintenance costs.
Less risk of spoilage because of the speed of drying.
Less spoilage or less wastage of dried products.
The disadvantage of these methods is that the crops and grain are subject to damage by birds rodents wind and rain and contamination by windblown dust and dirt.
It is labour saving.
Advantages of solar dryers.
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 complex and expensive than direct sun less damage from temperature mixed mode less damage from temperature extremes uv radiation can damage food hybrid ability to operate without sun reduces chances of food loss allows better control of drying fuel mode may be up to 40x.
What are the advantages and disadvantages of solar crop driers.
Solar dryers last longer.
Solar dryers are more economical compared to dryers that run on conventional fuel electricity.
The product is protected against flies pests rain and dust.
If the drying process is slow the fruit start to ferment and the product is spoilt.
The basic disadvantage of this indirect solar drying technique is the high initial capital cost for the dryer solar collectors auxiliary energy supply system and the necessary supplementary equipment such as ducts pipes pumps blowers control and measurement instruments.
Advantages of solar dryer domes.
It has also advantages that crop are protected from dust rain insects animals etc.
Better prices due to postponed market serve.
Advantages and disadvantages of direct solar drying.
