physical characteristics and combustion performance of briquettes produced from
four lignocellulosic materials and its
a 5-ton HBP with a rectangular mould had been carried out. The sole materials evaluated include sawdust, waste paper, cow
dung and rice bran and its admixtures in the following proportions: Sawdust:
paper (2:1), rice barn: paper (2:1), cow dung: paper (2:1), Rice bran: sawdust:
paper (1:1:1) investigating the bonding properties of paper. The ...
studies were carried out on selected shoulder-strap brush cutters to evaluate some
deficient ergonomic factors associated with their operations. These
deficiencies were used as basis for modification. Contextual interview and field interactions were used to obtain ergonomic
data that are descriptively analyzed. Results
of ergonomic assessment shows that operators are subjected to pains around the neck, shoulders, upper arm and fingers which are largely
traceable to shoulde...
evaluation of a dual-function device for slicing and drying Okra developed at
the Federal College of Agriculture, Ishiagu Nigeria was carried out and
reported. The device was designed to
slice and dry okra in one single-sequence operation. To evaluate the devices, some physical characteristics
(the axial length, mean
equivalent diameters and sphericity) of okra samples were measured to determine blade
distance and other machine considerations.
The results showed ...
Performance of three coconut cracking devices; punch-split,
impact-split, hydraulic-split were carried out and their comparison with conventional
(hand cracking technique) evaluated. Each
cracking technique was
evaluated for capacity, efficiency, ergonomics, and time required to crack a
unit of different coconut grades. The results
showed that the average cracking efficiency for punch-split was 87.09
percent with a range of 86.76 to 95.00 percent, impact-split efficiency vari...
Improved charcoal stoves are known to generally develop high thermal efficiencies, but most generate appreciable level of gas emissions which has made them unsuitable for use withinresidential buildings. In order to eliminate this constraint, a supplemental air supply power pack wasintroduced to improve charcoal stove thermal and aesthetic performance. This paper described theexperimental setup, test procedures and results showing optimized performance. Comparisonbetween performance character...
characteristics of briquettes produced and effects of extrusion factors using
an existing screw extruder have been investigated. The feedstock
material used in the test is sawdust collected from sawmills around Ibadan
metropolis. Particle distribution analysis of materials collected showed that the
size varies between 6-8 mm with 10-20% powdery component (< 4 mesh) which is
known to give better products. Samples of
briquettes produced were used for physical characterizatio...