HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYER
ABSTRACT The intermittence of solar radiation, due to continuous rainy or cloudy days, is a limitation of simple and small solar dryers. These conditions often make them impossible to use. By including storage systems (thermal accumulation) and/or auxiliary energy sources, drying processes or dehydr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Engenharia Agrícola
2020-04-01
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| Series: | Engenharia Agrícola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200154&tlng=en |
| _version_ | 1798015022073380864 |
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| author | Letícia J. Rodrigues Diego M. Basso |
| author_facet | Letícia J. Rodrigues Diego M. Basso |
| author_sort | Letícia J. Rodrigues |
| collection | DOAJ |
| description | ABSTRACT The intermittence of solar radiation, due to continuous rainy or cloudy days, is a limitation of simple and small solar dryers. These conditions often make them impossible to use. By including storage systems (thermal accumulation) and/or auxiliary energy sources, drying processes or dehydration can be conducted continuously, even during periods of low insolation. Therefore, the present work simulates and evaluates the thermal and energetic behavior of a hybrid system for heating the air that is directed to the dehydration chamber of a solar food dryer. The software selected for the simulation was TRNSYS. The simulated hybrid system consists of a flat plate solar collector and an arrangement of electrical resistors that guarantee the entry of air, at a constant temperature, into the dehydration chamber. The target temperature selected is 70 oC, and the absence of food products in the chamber is assumed. An arrangement with four electric resistors totaling 1900 W, with three different powers of 1000 W, 500 W, and 200 W proved adequate to guarantee the entrance of air at a constant temperature when considering the climatic conditions of a city in the South of Brazil. |
| first_indexed | 2024-04-11T15:27:44Z |
| format | Article |
| id | doaj.art-40b8424e89c347e1ac7ed625a33845a1 |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-04-11T15:27:44Z |
| publishDate | 2020-04-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-40b8424e89c347e1ac7ed625a33845a12022-12-22T04:16:13ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162020-04-0140215416110.1590/1809-4430-eng.agric.v40n2p154-161/2020HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYERLetícia J. Rodrigueshttps://orcid.org/0000-0002-8147-0770Diego M. BassoABSTRACT The intermittence of solar radiation, due to continuous rainy or cloudy days, is a limitation of simple and small solar dryers. These conditions often make them impossible to use. By including storage systems (thermal accumulation) and/or auxiliary energy sources, drying processes or dehydration can be conducted continuously, even during periods of low insolation. Therefore, the present work simulates and evaluates the thermal and energetic behavior of a hybrid system for heating the air that is directed to the dehydration chamber of a solar food dryer. The software selected for the simulation was TRNSYS. The simulated hybrid system consists of a flat plate solar collector and an arrangement of electrical resistors that guarantee the entry of air, at a constant temperature, into the dehydration chamber. The target temperature selected is 70 oC, and the absence of food products in the chamber is assumed. An arrangement with four electric resistors totaling 1900 W, with three different powers of 1000 W, 500 W, and 200 W proved adequate to guarantee the entrance of air at a constant temperature when considering the climatic conditions of a city in the South of Brazil.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200154&tlng=enelectrical resistor arrangementflat plate solar collectorauxiliary heating systemTRNSYS software |
| spellingShingle | Letícia J. Rodrigues Diego M. Basso HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYER Engenharia Agrícola electrical resistor arrangement flat plate solar collector auxiliary heating system TRNSYS software |
| title | HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYER |
| title_full | HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYER |
| title_fullStr | HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYER |
| title_full_unstemmed | HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYER |
| title_short | HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYER |
| title_sort | hybrid system simulation to supply heated air to a solar food dryer |
| topic | electrical resistor arrangement flat plate solar collector auxiliary heating system TRNSYS software |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200154&tlng=en |
| work_keys_str_mv | AT leticiajrodrigues hybridsystemsimulationtosupplyheatedairtoasolarfooddryer AT diegombasso hybridsystemsimulationtosupplyheatedairtoasolarfooddryer |