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| Solimani, Firozeh; Rahnama, Majid; Asoodar, Mohammad Amin; Ghasemi Nejad Raini, Mahmoud; Hormozi, Mohammad Ali. |
| Spraying is a major operation to control the bio-elements that are harmful to farming products. Reduction in nozzle drift can be considered as one of the main factors in preventing the risk of environmental pollution because of using pesticides. For this aim, three types of air-assisted nozzles, namely, air-liquid-air(ALA), liquid-air(LA), liquid-air-liquid(LAL), and at four levels of air-assisted velocity (0, 2, 4, and 7.5 m/s-1)were used; They were also examined at four levels of wind velocity (0, 2, 3, and 4 m/s-1).A spectrophotometry device, MATLAB, SAS 9.1, and IBM SPSS statistical software were used for measurement. The results showed that the effects of the nozzle type, air-assisted velocity, and wind velocity on the drift, deposition, unified... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7453 |
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| Rahnama, Majid; Kazemi, Navab; Godarzi, Behroz; Taki, Morteza. |
| Geothermal source is a perspective technology able to use the ground as a thermal sink or heat source. It is one of the energy resources in Iran that can be used with long-term investment. This study provided a new idea to use of this energy for heating and cooling of buildings. Two wells were used for heating and cooling due to the constant temperature of the water in depth of 12 m underground (approximately is equal to the annual temperature environment during the year). Water flowed in six speeds: 10, 11.5, 13, 16, 29 and 34 lit/min using a hydraulic pump (12 meters hydraulic height and 2 inch diameter) from first well, and after passing through radiator, discharge to other well. The outdoor temperature was 9oC, 40 °C and 15.5-16 °C for heating,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Air speed; Geothermal source; Net energy ratio; Water flow rate. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4664 |
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