Combustion characteristics of fuel briquettes made from charcoal particles and sawdust agglomerates
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Date
2019-07
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier B. V.
Abstract
The
combustion
characteristics
of
fuel
briquettes
made
from
Idigbo
(
Terminalia
ivorensis
)
charcoal
particles,
pinewood
(
Pinus
caribaea
)
sawdust
and
their
agglomerates
using
gela
tinized
cassava
peels
were
investigated.
The
charcoal
particles
and
pine
sawdust
were
blended
in
the
mixing
ratios
of
90:10,
80:20,
70:30,
60:40,
and
50:50,
respectively
and
vice-versa.
More
so,
briquettes
were
produced
from
pure
charcoal
particles
and
pine
saw
dust
separately
for
the
purpose
of
comparison
with
the
blended
briquettes.
The
gelatinized
binder
was
5%
of
the
total
briquettes
weight.
The
briquettes
were
produced
using
a
pres
sure
of
5
MPa
with
a
dwelling
time
of
5
min
in
a
hydraulic
briquetting
machine.
Proximate,
elemental
compositions
and
heating
value
analyses
were
carried
out
on
the
raw
charcoal,
sawdust,
cassava
peel,
and
their
briquettes.
The
results
showed
that
variations
in
the
mix
ing
ratios
of
the
bio-residues
had
significant
effects
on
all
the
properties
investigated.
An
increase
in
the
charcoal
particles
led
to
an
increase
in
the
fixed
carbon
content
and
heat
ing
value
of
the
briquettes.
Conversely,
higher
pine
sawdust
content
in
the
briquette
re
sulted
in
higher
volatile
matter
content
and
lower
heating
value.
The
briquette
made
from
pure
charcoal
particles
had
the
highest
heating
value
(24.9
MJ/kg)
and
ash
content
(6.0%).
Its
carbon,
hydrogen,
and
oxygen
contents
were
in
the
range
of
44.6–50.1%,
5.1–5.6%
and
34.4–41.5%,
respectively.
The
proximate
analysis,
elemental
composition
analysis,
and
heat
ing
values
of
the
produced
fuel
briquettes
depicted
that
they
have
better
combustion
prop
erties
when
compared
to
the
raw
charcoal,
pine
dust,
and
cassava
peel.
Thus,
the
produced
briquettes
would
serve
as
good
fuel
for
domestic
and
industrial
applications.
Description
Keywords
Bio-residues, Mixing ratio, Briquette, Combustion characteristics, Energy fuel
Citation
26. Ajimotokan, H. A., Ehindero, A.O., Ajao, K.S., Adeleke, A. A., Ikubanni, P. P. and Shuaib-Babata, Y. L. (2019): Combustion characteristics of fuel briquettes made from charcoal particles and sawdust agglomerates. Scientific African. 6 (2019) e00202:1-9. Published by Elsevier B. V. DOI: https://doi.org/10.1016/j.sciaf.2019.e00202 www.elsevier.com/locate/sciaf