Thermodynamic analysis of the drying process of bananas in a small-scale solar updraft tower in Brazil
| Autor: | Cristiana Brasil Maia, Luben Cabezas-Gómez, André Guimarães Ferreira, Sérgio de Morais Hanriot, Janaína de Oliveira Castro Silva |
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| Rok vydání: | 2017 |
| Předmět: |
Solar updraft tower
Exergy Engineering Meteorology Scale (ratio) Renewable Energy Sustainability and the Environment business.industry 020209 energy Airflow Environmental engineering 02 engineering and technology Laws of thermodynamics law.invention law Scientific method 0202 electrical engineering electronic engineering information engineering business |
| Zdroj: | Renewable Energy. 114:1005-1012 |
| ISSN: | 0960-1481 |
| DOI: | 10.1016/j.renene.2017.07.102 |
| Popis: | This paper presents a thermodynamic analysis of the drying of bananas inside a small-scale prototype solar updraft tower in Belo Horizonte, Brazil. A model based on the first and second laws of thermodynamics was developed, using the ambient conditions and airflow parameters data obtained in the experimental prototype. The exergy rates were determined, and it was concluded that the incident solar radiation plays an important role on the drying process of bananas, the higher the solar radiation, the higher the exergy rates. The exergetic efficiency was compared to that obtained without products inside the solar updraft tower, and it was found that the exergetic efficiency increased from about 20% to 27% with load. |
| Databáze: | OpenAIRE |
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