Dr.deepak Kb
Comparative analysis of boiler efficiency between commercial sawdust briquettes and biomass briquettes
- Authors Details :
- Deepak Kathladka Balakrishna,
- Harish Sheni Ramanaik,
- Satheesha Kumar Kuvenja,
- Manujesh Boovanahalli Javaregowda
Journal title : eTIME-2019 – INTERNATIONAL CONFERENCE ON EMERGING TRENDS IN MECHANICAL ENGINEERING
Publisher : AIP Publishing
Print ISSN : 0094-243X
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During this research work, a theoretical study was done to compare the boiler efficiency by using two different
fuels, i.e. commercial sawdust briquette and biomass briquette prepared using 850 μ coconut leaves, with sawdust as
the binder. For preparing the biomass briquettes to leave of coconut were gathered, dried, milled, and sieved and sizes of 850μ
were selected. The sized coconut leaves were then mixed in the company of sawdust that worked as a binder in 1:2 ratios,
and compressed by means of a piston-type briquette machine, which was fabricated for the same. Ultimate and proximate
analyses were carried out on the biomass briquette to determine their various compositions. Results from analysis were
used to calculate the boiler efficiency by the indirect method using Indian Standard Boiler Efficiency IS 8753. Results from
the analysis showed that boiler efficiency by indirect method for commercial sawdust briquette is 68.80% and boiler
efficiency by indirect method for coconut leaves of 850μ, with sawdust as a binder is 61.17%. The reason for higher boiler
efficiency for commercial sawdust briquette is due to its higher calorific value (4451.37KCal/gm) when compared to that coconut leaves briquette made from 850μ size with sawdust as a binder (3672.45KCal/gm). From proximate and
ultimate analysis, the results showed a reduction in ash content percentage, moisture content, and rise in volatile matter
percentage, when the comparison was along with the marketable sawdust briquette, which is of considerable significance.
Additional properties akin to the percentage of hydrogen, fixed carbon, sulfur, nitrogen, and oxygen were roughly the same as
that of the commercially available sawdust briquettes. After calculating the boiler efficiency of the two biomass
briquettes, coconut leaves with sawdust as binder exhibited the most optimistic trait and as it is more easily and readily
available, thus making it more economically viable.
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DOI : https://doi.org/10.1063/5.0006824
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