TY - JOUR
T1 - Techno-economic analysis of a cogeneration system for post-harvest loss reduction
T2 - A case study in sub-Saharan rural community
AU - Lamidi, Rasaq O.
AU - Jiang, Long
AU - Wang, Yaodong
AU - Pathare, Pankaj B.
AU - Aguilar, Marcelo Calispa
AU - Wang, Ruiqi
AU - Eshoul, Nuri Mohamed
AU - Roskilly, Anthony Paul
N1 - Funding Information:
Funding: This study is partly supported by the Engineering and Physical Science Research Council (EPSRC), UK (RE4Food project -EP/L002531/1); EPSRC IAA Phase 2 (EP/K503885/1)–‘Computational fluid dynamics (CFD) enabled optimisation of a hybrid solar dryer for sub-Saharan Africa; EPSRC Global Challenges Research Fund Institutional Sponsorship Award 2016–Institutional Sponsorship Funding, ‘Preparing for GCRF Award: Optimisation of different solar dryers used in Sub-Saharan Africa using computational fluid dynamics (CFD)’.
Funding Information:
Acknowledgments: The authors wish to thank the Nigeria’s Petroleum Technology Development Fund for sponsoring this research work.
Publisher Copyright:
© 2019 by the authors.
PY - 2019
Y1 - 2019
N2 - Over 90% of global yam production is from West Africa where it provides food and income for above 300 million smallholders’ farmers. However, the major challenge of yam is 10–40% post-harvest losses due to the lack of appropriate storage facilities. This paper assesses a biogas-driven cogeneration system, which could supply electricity and cold storage for ‘yam bank’ within a rural community. Considering 200 households’ Nigerian village as a case study, crop residues are used as anaerobic digestion feedstock to produce biogas, which is subsequently used to power an internal combustion engine. Result shows that the system could store 3.6 tonnes of yam tubers each year and provide enough electricity for domestic and commercial activities. At the current electricity tariff of USD0.013·kWh − 1 for rural areas, the system is unable to payback during its life span. The proposed USD0.42·kWh − 1 by Nigerian Rural Electrification Agency seems good with less than 3 years discounted payback period but brings about extra burden on poor rural households. Based on the income from cold storage, electricity tariff of USD0.105·kWh − 1 with an interest rate of 4% is suggested to be reasonable which results in 6.84 years discounted payback period especially considering non-monetary benefits of renewable energy system.
AB - Over 90% of global yam production is from West Africa where it provides food and income for above 300 million smallholders’ farmers. However, the major challenge of yam is 10–40% post-harvest losses due to the lack of appropriate storage facilities. This paper assesses a biogas-driven cogeneration system, which could supply electricity and cold storage for ‘yam bank’ within a rural community. Considering 200 households’ Nigerian village as a case study, crop residues are used as anaerobic digestion feedstock to produce biogas, which is subsequently used to power an internal combustion engine. Result shows that the system could store 3.6 tonnes of yam tubers each year and provide enough electricity for domestic and commercial activities. At the current electricity tariff of USD0.013·kWh − 1 for rural areas, the system is unable to payback during its life span. The proposed USD0.42·kWh − 1 by Nigerian Rural Electrification Agency seems good with less than 3 years discounted payback period but brings about extra burden on poor rural households. Based on the income from cold storage, electricity tariff of USD0.105·kWh − 1 with an interest rate of 4% is suggested to be reasonable which results in 6.84 years discounted payback period especially considering non-monetary benefits of renewable energy system.
KW - Biogas
KW - Cold storage
KW - Combined cooling and power
KW - Postharvest loss
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U2 - 10.3390/en12050872
DO - 10.3390/en12050872
M3 - Article
AN - SCOPUS:85062656219
SN - 1996-1073
VL - 12
JO - Energies
JF - Energies
IS - 5
M1 - 872
ER -