干旱区生态环境知识资源中心(Arid): Droplet Characteristics and Near Nozzle Dispersion of Cold and Thermal Fog.

Arid

报告编号	ADA578772
	Droplet Characteristics and Near Nozzle Dispersion of Cold and Thermal Fog.
	Farooq, M; Salyani, M; Walker, T. W.
英文摘要	In an effort to improve application methods for controlling sand flies in desert environments, a hand-held ultra-low volume (ULV) aerosol generator, a truck-mounted ULV aerosol generator, and a hand-held thermal fogger were evaluated. The velocity and temperature of the air and characteristics of droplets generated by these aerosol generators were measured at various distances from the nozzle. The droplet size characteristics were measured for three flow rates each of BVA-13 mineral oil and a mixture of water and nonionic surfactant with a phase Doppler particle analyzer. Moving 0.9 m away from the nozzle, the velocity of air produced by the two hand-held sprayers decreased to <5 m/s, whereas the truck-mounted sprayer still had an air velocity of 15/ms. The air produced by truck-mounted cold fogger, thermal fogger and hand-held ULV applicator was 38,49.2, and 8.5 C above ambient temperature respectively. Increases in the flow rate, generally did not affect the droplet size for the two hand-held units; however the dropliet size increased as the flow rate increased on the truck-mounted sprayer. For all three aerosol generators droplet concentration increased with increasing flow rate. Both ULV generator showed on increase in droplet size and a decrease in droplet concentration as the distance from nozzle increased. However, the droplet size decreased and the droplet concentration increased when applied using the thermal fogger.
英文关键词	Aerosol generators Insect control Culicidae Diptera Drops Insecticides Nozzles Sprayers Sprays Symposia Thermal foggers Droplet size Mosquitoes Sand flies Space spraying Vector control Warfighter protection
出版年	2012
语种	英语
国家	United States
来源学科分类	41J - Tooling, Machinery, & Tools ; 46B - Fluid Mechanics
URL	http://r.cnki.net/KCMS/detail/detail.aspx?DbCode=KJBG&dbname=KJBGW&filename=59fb020c31c97d1d549dc7b7
来源机构	Non Paid ADAS
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/273838
推荐引用方式 GB/T 7714	Farooq, M,Salyani, M,Walker, T. W.. Droplet Characteristics and Near Nozzle Dispersion of Cold and Thermal Fog.,2012.