METHODS:
First, prepare all the materials, cut the galvanized thin sheets steel into desired shape (Parabolic shape), weld the chassis of the dryer which is composed of the angle bars, weld it together with the thin sheets to form the parabolic shape dryer, then after you finish weld it, paint the whole dryer as black (note* it is painted black to be the absorber of sun's rays to be converted into heat energy). Then, after it cut the glass then put in on the top of the dryer, which is in line with the shape of the dryer, also the glass is following the parabola curved, then paste it with silicon gel to let the glass stick with the steel.. then it is finish...
MATERIALS COST: 5,000 pesos (including labor)
SITE OF STUDY: (AGRICULTURAL ENGINEERING COMPLEX) MINDANAO STATE UNIVERSITY -GENERAL SANTOS CITY, PHILIPPINES
PICTURE(s) OF PARABOLIC DIRECT SOLAR DRYER:
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