Technical brief
The twomodels of driers developed are,
• Stationary Drier
• Mobile (Collapsible) Drier
Stationary Drier
Picture: stationary type solar drier
Above: stationary solar drier
The structure of this drier is very similar to a gable roofed
green house. It is a structure 25. 4ft in length and 15. 4ft in
width. The height of the eaves is 8.6ft and the ridge is 12’
¾” in height. The floor is elevated from the ground level and
constructed of paved brick and covered with a cement
rendering. Brick walls with a height of 2’6” are erected on the
four sides to support the structure. The inner side of the
walls is plastered to prevent breeding and harbouring of
insects while the outer side is painted black, for greater heat
absorption and retention.
Two ducts and two chimneys are fixed on the upper ends of
the roof ventilators. These are also painted black so as to
augment the expulsion of the spent air. The heat collection
device is made of 08 metal trenches, painted black on the
inner side, facing the sun. The roof is covered with a
polythene cover and is supported on a weather proof,
seasoned timber framework. These trenches are located
1’3” below the eaves. The idea behind designing the heat
collector in the form of trenches (each trench loaded with
black coloured metal chips), is to facilitatestorage and
releasing of heat during cloudy spells, thus offsetting the
vagaries of temperature fluctuations.
The capacity of this drier is 100 Kg per batch.
Isometric view of the drier
Practical ActionConstruction and maintenances of solar fish drier Technical brief
2