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标题：Assessment of the potential of charred briquettes of sawdust, rice and coconut husks: Using water boiling and user acceptability tests
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作者：Gilbert Ayine Akolgo ; Edward A. Awafo ; Eric Osei Essandoh 等
期刊名称：Scientific African
印刷版ISSN：2468-2276
出版年度：2021
卷号：12
页码：1-8
DOI：10.1016/j.sciaf.2021.e00789
语种：English
出版社：Elsevier
摘要：AbstractCharred briquettes production is a sustainable way of producing cooking fuel from waste. Unsustainable harvesting of wood for fuel production has contributed immensely to the rapid deforestation in Ghana. This study determined the potential of charred briquettes of sawdust, rice and coconut husks in meeting cooking energy needs of households. In a further step, the acceptability of biomass users in the study to replace their current fuels with charred briquettes was established. The calorific value of the charred briquettes was found to be 24.69 MJ/kg. The highest combustion efficiency of briquettes was determined as 34.7% when a multi-feed gasifier stove (MFGS) was used. There were 14% and 80% reduction in particulate matter and carbon monoxide emissions, respectively when briquettes was used instead of charcoal in the MFGS. The analysis of the production cost of briquettes revealed that 1 kg of briquettes should be sold at Gh¢ 2.48 in order to make a 10% profit. The user acceptability survey indicated that about 40% of respondents are ready to patronize briquettes should it be sold at Gh¢ 2.48. This study established that briquette is a suitable replacement for wood and charcoal, if its full potential is harnessed and the energy utilization efficiency of biomass (sawdust, rice and coconut husts) briquettes is confirmed.
关键词：KeywordsBriquettesCooking fuelUser acceptabilityBiomass energyRenewable energy