SIMULATION OF VENTILATION SYSTEMS IN A PROTECTED ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS
ABSTRACT Computational simulations of mass and energy flow help in implementing alternative cooling systems in protected environments. The aim of this study was to model and simulate the interaction between external and internal environments of a protected environment by means of computational fluid...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Engenharia Agrícola
2017-06-01
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| Series: | Engenharia Agrícola |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300414&tlng=en |
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| author | Roberto C. da Silva José J. F. Cordeiro Júnior Héliton Pandorfi Ricardo B. Vigoderis Cristiane Guiselini |
| author_facet | Roberto C. da Silva José J. F. Cordeiro Júnior Héliton Pandorfi Ricardo B. Vigoderis Cristiane Guiselini |
| author_sort | Roberto C. da Silva |
| collection | DOAJ |
| description | ABSTRACT Computational simulations of mass and energy flow help in implementing alternative cooling systems in protected environments. The aim of this study was to model and simulate the interaction between external and internal environments of a protected environment by means of computational fluid dynamics (CFD) techniques and validate micrometeorological variables for subsequent comparison between natural and indirect ventilation by ground heat exchangers. At the first phase, the micrometeorological variables global solar radiation (Qg), air temperature (Tair), and air relative humidity (RH) were monitored. The second phase consisted of the numerical modeling of finite volumes, with validation through recorded data, as well as simulation and comparison of two ventilation systems. The functional relationship between simulated and recorded meteorological elements presented a good linear association, with coefficients of determination of 0.97, 0.93, and 0.94 for Qg, Tair, and RH, respectively. Simulation of indirect ventilation system by ground heat exchangers presented a reduction of 4 °C in Tair and 15% in RH compared to that recorded inside the environment. The natural ventilation system allowed a reduction of 1 °C in Tair when compared to the protected environment. |
| first_indexed | 2024-12-24T01:56:39Z |
| format | Article |
| id | doaj.art-ae50f987bca5443e9318f0e0832d67ba |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-12-24T01:56:39Z |
| publishDate | 2017-06-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-ae50f987bca5443e9318f0e0832d67ba2022-12-21T17:21:34ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162017-06-0137341442510.1590/1809-4430-eng.agric.v37n3p414-425/2017SIMULATION OF VENTILATION SYSTEMS IN A PROTECTED ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICSRoberto C. da SilvaJosé J. F. Cordeiro JúniorHéliton PandorfiRicardo B. VigoderisCristiane GuiseliniABSTRACT Computational simulations of mass and energy flow help in implementing alternative cooling systems in protected environments. The aim of this study was to model and simulate the interaction between external and internal environments of a protected environment by means of computational fluid dynamics (CFD) techniques and validate micrometeorological variables for subsequent comparison between natural and indirect ventilation by ground heat exchangers. At the first phase, the micrometeorological variables global solar radiation (Qg), air temperature (Tair), and air relative humidity (RH) were monitored. The second phase consisted of the numerical modeling of finite volumes, with validation through recorded data, as well as simulation and comparison of two ventilation systems. The functional relationship between simulated and recorded meteorological elements presented a good linear association, with coefficients of determination of 0.97, 0.93, and 0.94 for Qg, Tair, and RH, respectively. Simulation of indirect ventilation system by ground heat exchangers presented a reduction of 4 °C in Tair and 15% in RH compared to that recorded inside the environment. The natural ventilation system allowed a reduction of 1 °C in Tair when compared to the protected environment.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300414&tlng=ennumerical simulationmicrometeorologyprotected cultivationfinite elements |
| spellingShingle | Roberto C. da Silva José J. F. Cordeiro Júnior Héliton Pandorfi Ricardo B. Vigoderis Cristiane Guiselini SIMULATION OF VENTILATION SYSTEMS IN A PROTECTED ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS Engenharia Agrícola numerical simulation micrometeorology protected cultivation finite elements |
| title | SIMULATION OF VENTILATION SYSTEMS IN A PROTECTED ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS |
| title_full | SIMULATION OF VENTILATION SYSTEMS IN A PROTECTED ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS |
| title_fullStr | SIMULATION OF VENTILATION SYSTEMS IN A PROTECTED ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS |
| title_full_unstemmed | SIMULATION OF VENTILATION SYSTEMS IN A PROTECTED ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS |
| title_short | SIMULATION OF VENTILATION SYSTEMS IN A PROTECTED ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS |
| title_sort | simulation of ventilation systems in a protected environment using computational fluid dynamics |
| topic | numerical simulation micrometeorology protected cultivation finite elements |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300414&tlng=en |
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