Peat briquette as an alternative to cooking fuel: A techno-economic viability assessment in Rwanda

Commercialization of peat briquetting technology was analyzed to know whether the technology is economically viable or not compared to commercialization of charcoal. The investigation of economic viability was assessed from raw-peat production to briquetting technologies. The briquettes were made by...

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Veröffentlicht in:Energy (Oxford) Jg. 102; S. 453 - 464
Hauptverfasser: Hakizimana, Jean de Dieu K., Kim, Hyung-Taek
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Ltd 01.05.2016
Schlagworte:
ash content
bogs
Briquettes
Briquetting
burning
carbon dioxide
Carbonization
Charcoal
commercialization
Cooking
economic sustainability
Expenses
fuels
furnaces
Greenhouse gas emissions
Heating
Households
methane
Peat
Peat briquette
Peat production
prices
Rwanda
Techno-economic viability
viability
Rwanda
Carbonization
Peat production
Greenhouse gas emissions
Techno-economic viability
Peat briquette
Charcoal
ISSN:0360-5442
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Zusammenfassung:Commercialization of peat briquetting technology was analyzed to know whether the technology is economically viable or not compared to commercialization of charcoal. The investigation of economic viability was assessed from raw-peat production to briquetting technologies. The briquettes were made by naturally dried of peat from Bisika, Bahimba, Ndongozi and Nyirabirande bogs, through a rotary pulverizer and a briquette press; they were carbonized into furnace at 450 °C to reduce its health effects. The burning rate of peat briquettes made varied from 0.178 kg/hour to 0.222 kg/hour. Ash content varying between 3 and 7.2 percent was also observed. The results showed that peat briquettes can be sold at USD0.18 per unit, with a total NPV of USD17.2 million. However, as the NPV tends to be zero, the selling price would be approximately USD0.155 per briquette. Monthly charcoal expenses were about USD23.20/household compared to a per-household cost of USD16.20/month of peat briquettes consumption; the supplanting of charcoal by peat briquettes would help the average Rwandan household reduce its monthly expenses by 30 percent. Peat briquettes utilization as cooking fuel in Rwanda could save 0.05 percent of CO2 and more than 99 percent of CH4 emissions, compared to charcoal emissions. •A technical process for peat production and peat briquetting.•An efficiency test of carbonized briquettes.•Commercialization of peat briquettes is compared to commercialization of charcoal.•Opportunities for greenhouse gas emissions reduction.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0360-5442
DOI:10.1016/j.energy.2016.02.073