TY - JOUR
T1 - Energy and exergy analysis of solar dryer with triple air passage direction collector powered by a wind generator
AU - Ndukwu, Macmanus
AU - Okon, Bassey
AU - Abam, Fidelis
AU - Lamrani, Billal
AU - Bekkioui, Naoual
AU - Wu, Hongwei
AU - Bennamoun, Lyes
AU - Egwu, Uchenna
AU - Ezewuisi, Chinemerem
AU - Ndukwe, Chibueze
AU - Nwachukwu, Chris
AU - Ehiem, James
N1 - © 2022 Springer Nature Switzerland AG. Part of Springer Nature. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1007/s40095-022-00502-8
PY - 2022/5/26
Y1 - 2022/5/26
N2 - The objective of this study is to thermodynamically investigate the performance of solar dryers by delaying the airflow in the collector. For this reason, a triple air path on a single pass collector with the fan powered by a wind generator was developed and evaluated in a very humid climate. The evaluation parameters were drying efficiency, energy and exergy analysis, sustainability assessment, CO
2 mitigation ability and effective moisture diffusivity of dried product. The results showed that the collector efficiency of triple air passage path collector designs improved the direct passage collector by 119%. The overall collector and drying efficiencies were 8.43% and 2.6% higher than the direct flow path collector. The specific energy consumption was 1.1033 kWh/kg while the specific moisture extraction rate was obtained as 0.273 kg/kW, respectively. The average exergy efficiency ranged between 38.09 and 63.81% while the waste exergy ratio, improvement potential and sustainability index for the three dryers ranged from 0.00 to 1.13, 7.54 × 10
–7 to 2.003 kW and 0.00 to 11.47, respectively. Using the solar dryers instead of the coal-powered dryer will mitigate more CO
2 into the atmosphere in the range of 9741.334 to 21,481. 476 tons of CO
2 per year while using grid-based electricity will limit the least amount of CO
2 in the range of 12.981 to 14.153351.50 tons of CO
2 per year.
AB - The objective of this study is to thermodynamically investigate the performance of solar dryers by delaying the airflow in the collector. For this reason, a triple air path on a single pass collector with the fan powered by a wind generator was developed and evaluated in a very humid climate. The evaluation parameters were drying efficiency, energy and exergy analysis, sustainability assessment, CO
2 mitigation ability and effective moisture diffusivity of dried product. The results showed that the collector efficiency of triple air passage path collector designs improved the direct passage collector by 119%. The overall collector and drying efficiencies were 8.43% and 2.6% higher than the direct flow path collector. The specific energy consumption was 1.1033 kWh/kg while the specific moisture extraction rate was obtained as 0.273 kg/kW, respectively. The average exergy efficiency ranged between 38.09 and 63.81% while the waste exergy ratio, improvement potential and sustainability index for the three dryers ranged from 0.00 to 1.13, 7.54 × 10
–7 to 2.003 kW and 0.00 to 11.47, respectively. Using the solar dryers instead of the coal-powered dryer will mitigate more CO
2 into the atmosphere in the range of 9741.334 to 21,481. 476 tons of CO
2 per year while using grid-based electricity will limit the least amount of CO
2 in the range of 12.981 to 14.153351.50 tons of CO
2 per year.
KW - Cocoyam
KW - Collector design
KW - Energy and exergy–based sustainability
KW - Solar drying
KW - Wind generator
UR - http://www.scopus.com/inward/record.url?scp=85130759364&partnerID=8YFLogxK
U2 - 10.1007/s40095-022-00502-8
DO - 10.1007/s40095-022-00502-8
M3 - Article
SN - 2251-6832
JO - International Journal of Energy and Environmental Engineering (IJEEE)
JF - International Journal of Energy and Environmental Engineering (IJEEE)
ER -