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Techno-economic analysis of small scale biogas based polygeneration systems: Bangladesh case study
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0003-0189-474x
KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0002-3661-7016
KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0001-7123-1824
2014 (English)In: Sustainable Energy Technologies and Assessments, ISSN 2213-1388, E-ISSN 2213-1396, Vol. 7, p. 68-78Article in journal (Refereed) Published
Abstract [en]

Access to electricity, clean energy, and safe drinking water services are genuine needs of the rural poor for their welfare. These needs can be addressed either individually or in an integrated approach. Biogas digesters are promising in the rural setting and integration of biogas production with power generation and water purification is an innovative concept that could be applied in remote areas of Bangladesh. This paper presents a new concept for integrated biogas based polygeneration and analyzes the techno-economic performance of the scheme for meeting the demand of electricity, cooking energy and safe drinking water of 30 households in a rural village of Bangladesh. The specific technologies chosen for the key energy conversion steps are as follows: plug-flow digester; internal combustion engine; and air-gap membrane distillation. Mass flows and energy balance, levelized cost of producing electricity, cooking gas and safe drinking water as well as the payback period of such a polygeneration system were analyzed. The results indicate that this polygeneration system is much more competitive and promising (in terms of levelized cost) than other available technologies when attempting to solve the energy and arsenic-related problems in Bangladesh. The payback period of such system is between 2.6 and 4 years.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2014. Vol. 7, p. 68-78
Keywords [en]
Biogas, Polygeneration, Electricity, Pure water, Cooking gas
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
URN: urn:nbn:se:lnu:diva-78489DOI: 10.1016/j.seta.2014.03.004Scopus ID: 2-s2.0-84899146002OAI: oai:DiVA.org:lnu-78489DiVA, id: diva2:1258898
Available from: 2018-10-26 Created: 2018-10-26 Last updated: 2019-04-04Bibliographically approved

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Mainali, Brijesh

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