Organic waste generally has low calorific value. Thus, an energy densification procedure is necessary before their use as fuel. Studies have shown that the calorific value of the mixture of charcoals can be higher than the calorific value of the isolated constituents. The aim of this study was to investigate the energy potential of the charcoals produced from coconut shells (CS), palmyra palm nuts shells (PPS), doum palm nuts shells (DPS) and their mixtures in order to identify the rate of mixture allowing the improvement of their calorific value. The raw biomasses were carbonized in a homemade carbonizer. The charcoals obtained were ground into powder. Then samples of, pure biomass charcoals (CS100, PPS100, DPS100), double mixtures of 50% of each biomass charcoals (CS50-PPS50, CS50-DPS50, PPS50-DPS50) and triple mixtures of (CS33-PPS33-DPS33, CS40-PPS30-DPS30, CS50-PPS25-DPS25, CS25-PPS50-DPS25, CS25-PPS25-DPS50) were made (the number corresponds to the content of each biomass charcoal in mass. Then, some of their energy parameters such as lower calorific value and energy per unit volume associated to bulk density were explored. The results showed that for pure samples, coconut shells charcoal presented the highest lower calorific value (28.059 MJ. kg-1), followed by charcoal (27.054 MJ/kg), then doum palm nuts shells biochar (26.929 MJ. kg-1) and finally 26.111 MJ. kg-1 for palmyra palm nuts shells charcoal. Similarly, with the highest bulk density of 0.625 g/cm3 coconut shells charcoal presented the highest energy per unit volume (17 536.880 J/cm3), whereas with the lowest bulk density of 0.415 g/cm3, doum palm nuts shells charcoal presented the lowest energy per unit volume. Coconut shells biomass charcoal energy per volume unit was significantly higher than that of charcoal used as control (13 905.760 J/cm3). For samples made up of mixtures, the lower calorific values obtained were lower than that of the most energetic pure biomass charcoal. Moreover, by comparing these measurements with the weighted average values of the calorific value of the mixtures, only the samples CS50-PPS25-DPS25 (27.623 MJ/kg) and CS40-PPS30-DPS30 (27.583 MJ/kg) showed an increase of the calorific value, higher than that of wood charcoal bought in the local market and used as reference (27.054 MJ/kg). However, for the others compositions, a decrease in calorific value was recorded.
| Published in | Science Journal of Energy Engineering (Volume 9, Issue 2) |
| DOI | 10.11648/j.sjee.20210902.11 |
| Page(s) | 17-21 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Biomass, Charcoal, Carbonization, Biomass Charcoal, Calorific Value, Heat per Volume Unit, Alternative Fuels
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APA Style
Damgou Mani Kongnine, Pali Kpelou, N’Gissa Attah, Essowè Mouzou. (2021). Evaluation of Energy Properties of Mixed Biomass Charcoal Derived from Coconut, Palmyra Palm Nuts and Doum Palm Nuts Shells. Science Journal of Energy Engineering, 9(2), 17-21. https://doi.org/10.11648/j.sjee.20210902.11
ACS Style
Damgou Mani Kongnine; Pali Kpelou; N’Gissa Attah; Essowè Mouzou. Evaluation of Energy Properties of Mixed Biomass Charcoal Derived from Coconut, Palmyra Palm Nuts and Doum Palm Nuts Shells. Sci. J. Energy Eng. 2021, 9(2), 17-21. doi: 10.11648/j.sjee.20210902.11
AMA Style
Damgou Mani Kongnine, Pali Kpelou, N’Gissa Attah, Essowè Mouzou. Evaluation of Energy Properties of Mixed Biomass Charcoal Derived from Coconut, Palmyra Palm Nuts and Doum Palm Nuts Shells. Sci J Energy Eng. 2021;9(2):17-21. doi: 10.11648/j.sjee.20210902.11
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Download@article{10.11648/j.sjee.20210902.11,
author = {Damgou Mani Kongnine and Pali Kpelou and N’Gissa Attah and Essowè Mouzou},
title = {Evaluation of Energy Properties of Mixed Biomass Charcoal Derived from Coconut, Palmyra Palm Nuts and Doum Palm Nuts Shells},
journal = {Science Journal of Energy Engineering},
volume = {9},
number = {2},
pages = {17-21},
doi = {10.11648/j.sjee.20210902.11},
url = {https://doi.org/10.11648/j.sjee.20210902.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjee.20210902.11},
abstract = {Organic waste generally has low calorific value. Thus, an energy densification procedure is necessary before their use as fuel. Studies have shown that the calorific value of the mixture of charcoals can be higher than the calorific value of the isolated constituents. The aim of this study was to investigate the energy potential of the charcoals produced from coconut shells (CS), palmyra palm nuts shells (PPS), doum palm nuts shells (DPS) and their mixtures in order to identify the rate of mixture allowing the improvement of their calorific value. The raw biomasses were carbonized in a homemade carbonizer. The charcoals obtained were ground into powder. Then samples of, pure biomass charcoals (CS100, PPS100, DPS100), double mixtures of 50% of each biomass charcoals (CS50-PPS50, CS50-DPS50, PPS50-DPS50) and triple mixtures of (CS33-PPS33-DPS33, CS40-PPS30-DPS30, CS50-PPS25-DPS25, CS25-PPS50-DPS25, CS25-PPS25-DPS50) were made (the number corresponds to the content of each biomass charcoal in mass. Then, some of their energy parameters such as lower calorific value and energy per unit volume associated to bulk density were explored. The results showed that for pure samples, coconut shells charcoal presented the highest lower calorific value (28.059 MJ. kg-1), followed by charcoal (27.054 MJ/kg), then doum palm nuts shells biochar (26.929 MJ. kg-1) and finally 26.111 MJ. kg-1 for palmyra palm nuts shells charcoal. Similarly, with the highest bulk density of 0.625 g/cm3 coconut shells charcoal presented the highest energy per unit volume (17 536.880 J/cm3), whereas with the lowest bulk density of 0.415 g/cm3, doum palm nuts shells charcoal presented the lowest energy per unit volume. Coconut shells biomass charcoal energy per volume unit was significantly higher than that of charcoal used as control (13 905.760 J/cm3). For samples made up of mixtures, the lower calorific values obtained were lower than that of the most energetic pure biomass charcoal. Moreover, by comparing these measurements with the weighted average values of the calorific value of the mixtures, only the samples CS50-PPS25-DPS25 (27.623 MJ/kg) and CS40-PPS30-DPS30 (27.583 MJ/kg) showed an increase of the calorific value, higher than that of wood charcoal bought in the local market and used as reference (27.054 MJ/kg). However, for the others compositions, a decrease in calorific value was recorded.},
year = {2021}
}
TY - JOUR T1 - Evaluation of Energy Properties of Mixed Biomass Charcoal Derived from Coconut, Palmyra Palm Nuts and Doum Palm Nuts Shells AU - Damgou Mani Kongnine AU - Pali Kpelou AU - N’Gissa Attah AU - Essowè Mouzou Y1 - 2021/06/04 PY - 2021 N1 - https://doi.org/10.11648/j.sjee.20210902.11 DO - 10.11648/j.sjee.20210902.11 T2 - Science Journal of Energy Engineering JF - Science Journal of Energy Engineering JO - Science Journal of Energy Engineering SP - 17 EP - 21 PB - Science Publishing Group SN - 2376-8126 UR - https://doi.org/10.11648/j.sjee.20210902.11 AB - Organic waste generally has low calorific value. Thus, an energy densification procedure is necessary before their use as fuel. Studies have shown that the calorific value of the mixture of charcoals can be higher than the calorific value of the isolated constituents. The aim of this study was to investigate the energy potential of the charcoals produced from coconut shells (CS), palmyra palm nuts shells (PPS), doum palm nuts shells (DPS) and their mixtures in order to identify the rate of mixture allowing the improvement of their calorific value. The raw biomasses were carbonized in a homemade carbonizer. The charcoals obtained were ground into powder. Then samples of, pure biomass charcoals (CS100, PPS100, DPS100), double mixtures of 50% of each biomass charcoals (CS50-PPS50, CS50-DPS50, PPS50-DPS50) and triple mixtures of (CS33-PPS33-DPS33, CS40-PPS30-DPS30, CS50-PPS25-DPS25, CS25-PPS50-DPS25, CS25-PPS25-DPS50) were made (the number corresponds to the content of each biomass charcoal in mass. Then, some of their energy parameters such as lower calorific value and energy per unit volume associated to bulk density were explored. The results showed that for pure samples, coconut shells charcoal presented the highest lower calorific value (28.059 MJ. kg-1), followed by charcoal (27.054 MJ/kg), then doum palm nuts shells biochar (26.929 MJ. kg-1) and finally 26.111 MJ. kg-1 for palmyra palm nuts shells charcoal. Similarly, with the highest bulk density of 0.625 g/cm3 coconut shells charcoal presented the highest energy per unit volume (17 536.880 J/cm3), whereas with the lowest bulk density of 0.415 g/cm3, doum palm nuts shells charcoal presented the lowest energy per unit volume. Coconut shells biomass charcoal energy per volume unit was significantly higher than that of charcoal used as control (13 905.760 J/cm3). For samples made up of mixtures, the lower calorific values obtained were lower than that of the most energetic pure biomass charcoal. Moreover, by comparing these measurements with the weighted average values of the calorific value of the mixtures, only the samples CS50-PPS25-DPS25 (27.623 MJ/kg) and CS40-PPS30-DPS30 (27.583 MJ/kg) showed an increase of the calorific value, higher than that of wood charcoal bought in the local market and used as reference (27.054 MJ/kg). However, for the others compositions, a decrease in calorific value was recorded. VL - 9 IS - 2 ER -
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