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Design, construction and evaluation of a sprayer drift measurement system CIGR Journal
Azizpanah, Amir; Rajabipour, Ali; Alimardani, Reza; Kheiralipour, Kamran; Ghamari, Bahram; Mohammadi, Vahid.
Spray drift study for reducing environmental hazards and protecting crops is of high importance as the pesticides used today are more active and many are non-selective. Drift potential can be restricted by assessing and optimizing equipment design, application parameters, the liquid spray properties, type of formulation and environmental conditions. The aim of this research was to design, construct and assess an intelligent system to determine the level of the spraying drift. The main parts of the system were liquid supply mechanism, pipes and nozzles, a controlled pneumatic system to pressurize the liquid, a nozzle moving system with a controlling panel and a tunnel for wind providing and control. To assess the performance of sprayer and drift of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sprayer; Wind tunnel; Drift; Volumetric mean diameter..
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3308
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Effect of engine rotation speed and gear ratio on the acoustic emission of John Deere 1055I combine harvester CIGR Journal
Jahanbakhshi, Ahmad; Ghamari, Bahram; Heidarbeigi, Kobra.
One of the problems of agricultural mechanization is noises caused by the use of machines. The noises should be evaluated due to the negative effects on health and safety level of humans working in this field. However, the purpose of this study is to investigate the effect of gear ratio and engine rotation speed on acoustic noise of John Deere 1055I combine harvester. The experiments were done based on sound international standards ISO 5131, ISO 7216 and the World Health Organization considering different levels of engine rotation speed (1800 and 2500 r/min), gear ratio (1, 2 and 3 H) and distance from the driver ear (10 cm, 7.5 m and 20 m). Three replications were considered for each treatment. The obtained data was analyzed by factorial test based on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Combine harvester; Engine rotation speed; Ergonomics; Gear ratio; FFT Analysis; Sound level.
Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3763
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