A CFD Study of the Fluid Flow Through Air Distribution Hoses in a Greenhouse
The indoor climate of a greenhouse provides the plants with favorable growing conditions that can result in faster growth and higher yields. Important parameters to control in a greenhouse are the temperature, the humidity, and the level of CO2 concentrations. In southern Europe, both heating and co...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIDIC Servizi S.r.l.
2023-06-01
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| Series: | Chemical Engineering Transactions |
| Online Access: | https://www.cetjournal.it/index.php/cet/article/view/13387 |
| _version_ | 1827912129625194496 |
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| author | Sigurd Sannan Ionut Ovidiu Jerca Liliana Aurelia Badulescu |
| author_facet | Sigurd Sannan Ionut Ovidiu Jerca Liliana Aurelia Badulescu |
| author_sort | Sigurd Sannan |
| collection | DOAJ |
| description | The indoor climate of a greenhouse provides the plants with favorable growing conditions that can result in faster growth and higher yields. Important parameters to control in a greenhouse are the temperature, the humidity, and the level of CO2 concentrations. In southern Europe, both heating and cooling are required to control the greenhouse temperatures throughout the year. In this study, Computational Fluid Dynamics (CFD) simulations is employed to study the fluid flow through air distribution hoses (ADHs) in a research greenhouse in Bucharest, Romania. The ADHs are part of a novel, energy-efficient concept at the greenhouse, comprised of an integrated heat pump system, air handling units (AHUs), a dry cooler, and borehole thermal energy storage. The heat pump system provides both heating and cooling, while the greenhouse humidity is controlled by the AHUs. CO2-enrichment to the greenhouse is provided from installed CO2 tanks. The CO2-enriched air is circulated from the AHUs to the ADHs, which have a series of perforated holes along their lengths. In these preliminary simulations, different configurations of the perforated holes are simulated to optimize the mixing of the climate-controlled air with the greenhouse air. Both the diameters of the holes and the opening of the ADH outlet are varied to study the mass flow rates out of the holes. The CFD simulations provide suitable design criteria for the installation of ADHs in a greenhouse environment and for optimizing the efficiency of ADHs. |
| first_indexed | 2024-03-13T02:11:42Z |
| format | Article |
| id | doaj.art-151bcd421505428d8ea816dcee276ecb |
| institution | Directory Open Access Journal |
| issn | 2283-9216 |
| language | English |
| last_indexed | 2024-03-13T02:11:42Z |
| publishDate | 2023-06-01 |
| publisher | AIDIC Servizi S.r.l. |
| record_format | Article |
| series | Chemical Engineering Transactions |
| spelling | doaj.art-151bcd421505428d8ea816dcee276ecb2023-06-30T22:32:10ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162023-06-0110010.3303/CET23100065A CFD Study of the Fluid Flow Through Air Distribution Hoses in a GreenhouseSigurd SannanIonut Ovidiu JercaLiliana Aurelia BadulescuThe indoor climate of a greenhouse provides the plants with favorable growing conditions that can result in faster growth and higher yields. Important parameters to control in a greenhouse are the temperature, the humidity, and the level of CO2 concentrations. In southern Europe, both heating and cooling are required to control the greenhouse temperatures throughout the year. In this study, Computational Fluid Dynamics (CFD) simulations is employed to study the fluid flow through air distribution hoses (ADHs) in a research greenhouse in Bucharest, Romania. The ADHs are part of a novel, energy-efficient concept at the greenhouse, comprised of an integrated heat pump system, air handling units (AHUs), a dry cooler, and borehole thermal energy storage. The heat pump system provides both heating and cooling, while the greenhouse humidity is controlled by the AHUs. CO2-enrichment to the greenhouse is provided from installed CO2 tanks. The CO2-enriched air is circulated from the AHUs to the ADHs, which have a series of perforated holes along their lengths. In these preliminary simulations, different configurations of the perforated holes are simulated to optimize the mixing of the climate-controlled air with the greenhouse air. Both the diameters of the holes and the opening of the ADH outlet are varied to study the mass flow rates out of the holes. The CFD simulations provide suitable design criteria for the installation of ADHs in a greenhouse environment and for optimizing the efficiency of ADHs.https://www.cetjournal.it/index.php/cet/article/view/13387 |
| spellingShingle | Sigurd Sannan Ionut Ovidiu Jerca Liliana Aurelia Badulescu A CFD Study of the Fluid Flow Through Air Distribution Hoses in a Greenhouse Chemical Engineering Transactions |
| title | A CFD Study of the Fluid Flow Through Air Distribution Hoses in a Greenhouse |
| title_full | A CFD Study of the Fluid Flow Through Air Distribution Hoses in a Greenhouse |
| title_fullStr | A CFD Study of the Fluid Flow Through Air Distribution Hoses in a Greenhouse |
| title_full_unstemmed | A CFD Study of the Fluid Flow Through Air Distribution Hoses in a Greenhouse |
| title_short | A CFD Study of the Fluid Flow Through Air Distribution Hoses in a Greenhouse |
| title_sort | cfd study of the fluid flow through air distribution hoses in a greenhouse |
| url | https://www.cetjournal.it/index.php/cet/article/view/13387 |
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