A comparative performance analysis of carbonized briquettes and charcoal fuels in Kampala-urban, Uganda

Tumutegyereize, Peter; Mugenyi, Ronal; Ketlogetswe, Clever; Gandure, Jerekias

doi:10.1016/j.esd.2016.01.001

Cited by 22 publications

(14 citation statements)

References 6 publications

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“…This was due to some factors: (1) the size of the sawdust was still quite big, (2) the water content was still high, and (3) the sawdust was a mixture of several types of wood. Furthermore, data shown the calorific value of briquettes was higher if it compared to coal/biomass briquettes production that normally can reach up to 19 523.05 kJ/kg (Adaptation from Tumutegyereize, P., et al, 2016). In this case, high calorific value of briquette that was not even higher than that was due to cement composition ratio given much in briquetting.…”

Section: Discussionmentioning

confidence: 82%

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Are Peat and Sawdust Truly Improve Quality of Briquettes as Fuel Alternative?

Bustan¹,

Arsyad

2017

JSD

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The availability of energy and fuel is always a critical issue, and currently the increasing scarcity and price of kerosene is causing problems for both households and businesses. For example, chicken farmers in Central Kalimantan need to maintain the room temperature when nursing chicks up to 12 days old, and currently have few alternatives to kerosene stoves. Non-carbonized briquettes made from a mix of peat and sawdust can provide an alternative fuel source. The sawdust is available from local sawmills, which is otherwise an unutilized waste product that is burnt off, so adding to local smoke pollution. This study was conducted to determine the optimal composition and manufacturing process to produce bricks that have a maximal calorific content whilst maintaining a long burning time and a reduced tendency to break. Analyses in the laboratory showed that the highest calorific content obtainable was 19 020.63 kJ/kg with a peat/sawdust ratio of 2:1 (20 kg of peat and 10 kg of sawdust). These briquettes had a production efficiency of 83.26%, and calculations showed the overall production cost of the finished product to be around 40% lower than that of kerosene. The results indicate that a peat soil and sawdust mix produce a briquette that is viable as a fuel alternative, and based on this the researcher recommends that it be further developed commercially to meet the additional energy demands at lower cost of people in rural areas and industrial sectors.

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Section: Discussionmentioning

confidence: 82%

“…According to Tumutegyereize, P., et al (2016), gross calorific values were comparable for the two fuel types (carbonized briquettes & charcoal) in the range of 19 523.05 -27 285.38 kJ/kg. Low calories in peat briquettes were, due to coal briquettes made from coal flakes that are no longer be marketed.…”

Section: Introductionmentioning

confidence: 98%

Are Peat and Sawdust Truly Improve Quality of Briquettes as Fuel Alternative?

Bustan¹,

Arsyad

2017

JSD

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“…Two liters of water was boiled using cook stoves with carbonized briquettes (150 g). The stopwatch was started when the briquettes were fully ignited and ended when the water temperatures remained constant for 10 s [29].…”

Section: Time Of Boilmentioning

confidence: 99%

“…Approximately 0.5 kg of each carbonized briquette ratio (completely burnt to ash, as shown in Fig. 15) were examined for burning to ash [29]. A statistical analysis showed a significant difference in all carbonized briquette ratios with a P-value less than 0.001 at the 95% confidence interval.…”

Section: The Characteristics Of Carbonized Briquettes For Transportatmentioning

confidence: 99%

Carbonized Briquettes as a Tool for Adding Value to Waste from Rain tree (Samanea Saman) and Coffee Ground/Tea Waste

Kansai

Chaisuwan

Supakata

2018

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The purpose of this research was to study the physical and economic characteristics of carbonized briquettes from rain tree (Samanea saman) residues and coffee ground/tea waste with cassava starch (10% wt.). This experiment utilized five treatments. As a binder, 10% wt. cassava starch was added to five ratios of rain tree residues to coffee ground/tea waste: RT100:CT0, RT75:CT25, RT50:CT50, RT25:CT75, and RT0:CT100. The physical properties of the carbonized briquettes were analyzed using ASTM methods. The results showed that carbonized briquettes made from 50% rain tree (Samanea saman) residues and 50% coffee ground/tea waste (RT50:CT50) had the highest calorific value (20.17 ± 0.042 MJ/kg)-insignificant at the 95% confidence interval-and highest shatter index (99.16 ± 0.20%). However, all ratios of rain tree residues to coffee ground/tea waste can produce carbonized briquettes for household use, convenient for transportation. In terms of economic performance, carbonized briquettes made from 50% rain tree (Samanea saman) residues and 50% coffee ground/tea waste (RT50:CT50) achieved the optimal payback period (approximately six months). Thus, making carbonized briquettes from rain tree residues and coffee ground/tea waste a viable alternative method of adding value to biomass residue for use as raw materials to produce fuel products for household cooking.

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“…Nature provides humans with multiple affordable potential energy sources from which usable energy can be extracted to get stored or utilized directly . Renewable energies are not only very environmental friendly, but also reasonably cost effective and can provide a high level of power output; these features causes the electricity generation through renewable energies to be reasonably justified . According a study Renewable energy provides approximately 18% of the world's final energy that is a remarkable .…”

Section: Introductionmentioning

confidence: 99%

Techno‐economic evaluation of standalone hybrid solar‐wind systems for small residential districts in the central desert of Iran

Razmjoo

Qolipour

Shirmohammadi

et al. 2017

Env Prog and Sustain Energy

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Today, it is common knowledge that increased use of renewable energies has a significant impact on reducing greenhouse gas emissions. The most notable types of renewable energies are solar energy and wind energy, whose popularity comes from their prominent features such as cost‐effectiveness, stability and easy utilization. The objective of this paper is to perform a technical–economic analysis on combined utilization of solar and wind power in two cities of Qom and Yazd, to conduct a feasibility study on the construction of clean energy producing power plants in these locations. To achieve this objective, we first gather the required data from the national meteorological organization, and then use Homer software to perform technical and economic analyses on the two considered sites. Solar and wind analyses on Qom and Yazd show that both cities have great potential in solar energy generation, but wind speed data indicate that only Qom has the wind characteristics appropriate for wind power generation. Overall, these results indicate that investments on solar energy sector of both cities will be economically justified, but only Qom has the wind characteristics required to make investments on its wind energy sector economic. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 1194–1207, 2017

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A comparative performance analysis of carbonized briquettes and charcoal fuels in Kampala-urban, Uganda

Cited by 22 publications

References 6 publications

Are Peat and Sawdust Truly Improve Quality of Briquettes as Fuel Alternative?

Are Peat and Sawdust Truly Improve Quality of Briquettes as Fuel Alternative?

Carbonized Briquettes as a Tool for Adding Value to Waste from Rain tree (Samanea Saman) and Coffee Ground/Tea Waste

Techno‐economic evaluation of standalone hybrid solar‐wind systems for small residential districts in the central desert of Iran

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