The Experts below are selected from a list of 15660 Experts worldwide ranked by ideXlab platform
Sandip Gangil - One of the best experts on this subject based on the ideXlab platform.
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Benefits of weakening in thermogravimetric signals of hemicellulose and lignin for producing Briquettes from soybean crop residue
Energy, 2015Co-Authors: Sandip GangilAbstract:Thermogravimetric signals of hemicellulose and lignin were found to subside due to the binderless briquetting of soybean crop residue. Minor but distinct thermogravimetric signals of secondary charring reactions were observed in raw crop residue and its Briquetted biofuel. The bio-component related kinetics was evaluated using the Kissinger method. Activation energy level of intrinsic cellulosic biopolymer was found higher in Briquette than that level in crop residue. The activation energy profile with respect to conversion fraction for raw residue and its Briquette was analyzed by the Kissinger–Akahira–Sunose method. The activation energy profile of Briquette was superior to raw residue of soybean crop showing the better thermal stability in Briquetted biofuel, highlighting the benefits of briquetting process. In addition to the physico-chemical transformations occurred in lignin, the hemicellulose and cellulose related transitions were also expected to play positive role for briquetting.
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Beneficial transitions in thermogravimetric signals and activation energy levels due to briquetting of raw pigeon pea stalk
Fuel, 2014Co-Authors: Sandip GangilAbstract:Abstract Transitions of thermogravimetric signals beneficial for formation of the binder-less Briquetted biofuel of pigeon pea crop residues were investigated. Thermal hardening or softening of the different components of bio-material in Briquetted biofuel was explained in terms of transitions of thermogravimetric signals and activation energy levels. The activation energy profiles with respect to conversion fraction for raw residue and its Briquette was studied by Kissinger–Akahira–Sunose method. The activation energy profile of Briquette showed dominancy over raw residues of pigeon pea crop highlighting the overall hardening in Briquetted biofuel.
B B Acheampong - One of the best experts on this subject based on the ideXlab platform.
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strength properties and calorific values of sawdust Briquettes as wood residue energy generation source from tropical hardwoods of different densities
Biomass & Bioenergy, 2016Co-Authors: Charles Antwiboasiako, B B AcheampongAbstract:Agricultural and wood residues are principal energy sources for domestic and industrial activities. However, they are often hardly utilized. Conventional wood material for briquetting optimizes combustion and efficient power production. The relationship between strength properties, resistance to humidity and calorific values of sawdust-Briquettes from three tropical hardwoods of different densities [Cylicodiscus gabunensis (heavy), Antiaris toxicaria (medium) and Ceiba pentandra (light)] and a Mixed/Composite type was determined. Wood density influenced all the Briquette properties and positively correlated with their Calorific Values (CVs) as: C. gabunensis > A. toxicaria > Mixed type > C. pentandra. However, light timber Briquettes had greater Compressive Strength, Swelling Value (i.e., less resistance to humidity) and Shatter Index than dense wood Briquettes: C. pentandra > Mixed type > A. toxicaria > C. gabunensis. C. gabunensis Briquette recorded less elongation value (8.85%) than the standard stipulated (i.e., 20–50%/min.) specifying its quality to resist deterioration on exposure to humidity/water in open sheds. Enormous Briquette Swelling Values for A. toxicaria (60.04%), Mixed type (66.16%) and C. pentandra (70.88%) indicate they would deteriorate fast and require great care to store, handle and transport. However, the large Shatter Indices for the Mixed type (98.8%) and C. pentandra (99.16%) denote their high durability to gravitational deterioration. Briquette technology, a “waste-to-energy method”, contributes to offset bio-residue management problems and reduce toxic emissions from its incomplete carbonization. Thus, comprehensive understanding of wood-residue Briquette characteristics is significant for fuel-energy generation.
Alexsandro Bayestorff Da Cunha - One of the best experts on this subject based on the ideXlab platform.
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production of Briquettes as a tool to optimize the use of waste from rice cultivation and industrial processing
Renewable Energy, 2017Co-Authors: Martha Andreia Brand, Rodolfo Cardoso Jacinto, Rodrigo Antunes, Alexsandro Bayestorff Da CunhaAbstract:The aim of this study was to analyse the quality of Briquettes produced with different proportions of rice husk, rice straw and rice husk ash. The waste of rice production chain was collected in the harvest of 2015, in the state of Santa Catarina, Brazil. The properties evaluated were moisture content, basic density, bulk density, particle size, gross calorific value and proximate analysis on the rice husk, rice straw and rice husk ash. Moreover, the extractives and acid insoluble lignin content in the rice husk and rice straw in natura were analysed. The Briquettes were produced in a laboratory with an hydraulic Briquette machine, at a temperature of 120 °C and a Bar pressure of 95. The Briquettes had the following compositions: rice husk (100%), rice straw (100%), rice husk (75%) with rice straw (25%), rice husk (25%) with rice straw (75%), rice husk (30%) with rice straw (60%) and rice husk ash (10%), rice husk (90%) with rice husk ash (10%), and finally, rice straw (90%) with rice husk ash (10%). The properties determined in the Briquettes were moisture content, bulk density, gross calorific value and proximate analysis. Rice wastes have the potential for energy use in the form of Briquettes. Without prior treatment for the rice husk, the rice straw should be grounded, dried and the rice husk ash collected before passing through the burners. The Briquette that showed the best physical properties was composed of 30% of rice husk, 60% of rice straw and 10% of rice husk ash. The inclusion of rice straw in the mixes increased the bulk density, and the addition of ash increased the compression strength of the Briquettes. The particle size had a greater influence than the basic density of the waste in the physical properties of the Briquettes. Due to energetic properties, the inclusion of rice straw improved the quality of Briquettes. The Briquette with the best energy quality was the homogeneous rice straw Briquette, followed by mixtures with higher proportions of rice straw.
Yusufu Abeid Chande Jande - One of the best experts on this subject based on the ideXlab platform.
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Manihot glaziovii-Bonded and Bioethanol-Infused Charcoal Dust Briquettes: A New Route of Addressing Sustainability, Ignition, and Food Security Issues in Briquette Production
BioEnergy Research, 2019Co-Authors: Lynder E. Gesase, Cecil K. King’ondu, Yusufu Abeid Chande JandeAbstract:Most of the citizens in developing countries use charcoal for domestic cooking and small-scale enterprises because of its high calorific value, less smoke, and easy to transport. However, a lot of charcoal dust is generated from charcoal trading activities. The dust is left as heaps of solid wastes in urban areas and sometimes thrown in water streams, thus being a nuisance to both humans and the environment. This study aimed to develop and characterize charcoal dust Briquettes bonded with wild cassava Manihot glaziovii and also use of bioethanol to enhance Briquette ignition. The percentages of binder to charcoal dust were varied from 5 to 30%. Proximate analysis, density, ignition time, burning rate, burning time, and calorific value were determined. The density of the produced Briquettes ranged from 0.67 ± 0 to 0.83 ± 0.1 g/cm^3; percentage of moisture content varied from 3.4 ± 0.2 to 4.2 ± 0.2; ash content varied from 19.6 ± 0.6 to 21.5 ± 0; percentage volatile matter ranged from 19.8 ± 0.3 to 24.3 ± 0.4; and percentage fixed carbon ranged from 51.9 ± 1.1 to 55.3 ± 0.2. The calorific value ranged from 17.7 ± 0.7 to 19.7 ± 0.3 MJ/kg, ignition time 139 to 163 s, and burning rate 0.3 to 0.7 g/min while water boiling time varied from 14 to 19 min and burning time from 85 to 116 min. Ignition test revealed that bioethanol ratio of 15 mL to 56 g of the Briquette showed the best Briquette ignition characteristics. It was further found that the amount of binder used influenced the combustion properties of the Briquettes. This study also showed that charcoal dust could be compacted to Briquettes using Manihot glaziovii as a binder. The overall performance of the Briquettes showed that 5% binder gave the best results in terms of combustion characteristics.
Charles Antwiboasiako - One of the best experts on this subject based on the ideXlab platform.
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strength properties and calorific values of sawdust Briquettes as wood residue energy generation source from tropical hardwoods of different densities
Biomass & Bioenergy, 2016Co-Authors: Charles Antwiboasiako, B B AcheampongAbstract:Agricultural and wood residues are principal energy sources for domestic and industrial activities. However, they are often hardly utilized. Conventional wood material for briquetting optimizes combustion and efficient power production. The relationship between strength properties, resistance to humidity and calorific values of sawdust-Briquettes from three tropical hardwoods of different densities [Cylicodiscus gabunensis (heavy), Antiaris toxicaria (medium) and Ceiba pentandra (light)] and a Mixed/Composite type was determined. Wood density influenced all the Briquette properties and positively correlated with their Calorific Values (CVs) as: C. gabunensis > A. toxicaria > Mixed type > C. pentandra. However, light timber Briquettes had greater Compressive Strength, Swelling Value (i.e., less resistance to humidity) and Shatter Index than dense wood Briquettes: C. pentandra > Mixed type > A. toxicaria > C. gabunensis. C. gabunensis Briquette recorded less elongation value (8.85%) than the standard stipulated (i.e., 20–50%/min.) specifying its quality to resist deterioration on exposure to humidity/water in open sheds. Enormous Briquette Swelling Values for A. toxicaria (60.04%), Mixed type (66.16%) and C. pentandra (70.88%) indicate they would deteriorate fast and require great care to store, handle and transport. However, the large Shatter Indices for the Mixed type (98.8%) and C. pentandra (99.16%) denote their high durability to gravitational deterioration. Briquette technology, a “waste-to-energy method”, contributes to offset bio-residue management problems and reduce toxic emissions from its incomplete carbonization. Thus, comprehensive understanding of wood-residue Briquette characteristics is significant for fuel-energy generation.