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Biogas based polygeneration plant options utilizing dairy farms waste: A Bolivian case
KTH Royal Institute of Technology, Sweden;Universidad Mayor de San Simón (UMSS), Bolivia.
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology.ORCID iD: 0000-0003-0189-474x
Universidad Regional Amazónica Ikiam, Ecuador;Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), Spain.
KTH Royal Institute of Technology, Sweden.
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2020 (English)In: Sustainable Energy Technologies and Assessments, ISSN 2213-1388, E-ISSN 2213-1396, Vol. 37, article id 100571Article in journal (Refereed) Published
Abstract [en]

This study presents a comparative techno-economic feasibility analysis for two polygeneration plant solutions, applied to low-income dairy farms in Bolivia. The first option considers an internally fired microturbine (IFMT) and, the second, an internal combustion engine (ICE). They are integrated with an absorption refrigeration system and a fertilizer dryer. Biogas, produced with farms waste, fuels these power generators. The levelized costs of biogas for cooking, electricity, cooling and fertilizers were determined. The cost of biogas, for both options, was found to be 0.020 USD/kWh, which is lower than the subsidized price of LPG. The most competitive cost of electricity was determined for the ICE plant option; it was found to be 0.082 USD/kWh and is lower than the subsidized cost of fossil fuel-based electricity. The cost of cooling was found to be around 0.082 USD/kWh, which is slightly higher than the cost of cooling supplied by using grid electricity. In a realistic scenario, the shorter payback period was found to be 4.4 years for the ICE plant option. From this, the ICE-based plant was found as the most feasible option. Additionally, if no subsidies are applied to the fossil fuel-based services, the proposed polygeneration systems are a highly competitive alternative.

Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 37, article id 100571
Keywords [en]
Polygeneration plantTechno-economic study, Biogas Dairy farm, Energy services, Electricity Cooling, Fertilizer
National Category
Energy Systems
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
URN: urn:nbn:se:lnu:diva-90447DOI: 10.1016/j.seta.2019.100571OAI: oai:DiVA.org:lnu-90447DiVA, id: diva2:1376632
Available from: 2019-12-09 Created: 2019-12-09 Last updated: 2019-12-17Bibliographically approved

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Mainali, Brijesh
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