Results 1 to 10 of about 23,091 (262)

Optimization of UAV Spraying in Mountainous Nanguo Pear Orchards: Effects of Canopy Size and Operational Parameters on Droplet Deposition and Penetration [PDF]

Plants
The use of uniform spray volume rates for fruit trees with different canopy sizes is common in orchard spraying with plant protection unmanned aerial vehicles (UAVs), whereas the applicability of Leaf Wall Area (LWA)- and Tree Row Volume (TRV)-based ...
Shuang Guo, Zhuangzhuang Li, Jianghui Luo, Yuzhou Liu, Suyuan Ma, Wanting Sun, Weixiang Yao   +6 more
doaj   +2 more sources

Interpretative Review of Diesel Spray Penetration Normalized by Length and Time of Breakup (Similarity Law of Diesel Spray and Its Application)

Energies, 2022
Tip penetration of diesel spray is one of the most useful parameters to evaluate diesel combustion dynamics. It has strong relationships with ignition delay, premix/diffusion combustion and engine performance, including exhaust emissions.
Masataka Arai
doaj   +3 more sources

Experimental and numerical investigations on spray characteristics of fatty acid methyl esters [PDF]

Royal Society Open Science, 2018
A comparative experimental and numerical study is conducted to establish the significance of the use of single-component over multi-component representatives of biodiesel, diesel and their blend for predicting spray tip penetration.
R. D. Lanjekar, D. Deshmukh
doaj   +1 more source

An Experimental Study on the Injection Characteristics and the Macroscopic Spray Characteristics of Rapeseed Oil-Diesel Fuel Blends

Applied Sciences, 2023
In this study, the injection processes and spray behavior of diesel fuel (DF), rapeseed oil (RO) and their fuel blends (RO25, RO50, RO75) have been qualitatively and quantitatively analyzed to identify the differences in the injection rate and the spray ...
Stasys Slavinskas
doaj   +1 more source

Experimental diesel spray characterization of the medium-duty injector with single- and multi-hole nozzle configurations under non-reacting, non-vaporizing conditions

Frontiers in Mechanical Engineering, 2022
Characteristics of diesel sprays injected through Cummins medium-duty ISB injectors were studied experimentally in an optically accessible constant-volume combustion vessel.
Ji-Woong Park, Ji-Woong Park, Shirin Jouzdani, Tom Tzanetakis, Henry Schmidt, William Atkinson, Jeffrey Naber, Yuanjiang Pei, Feng Tao, Rajesh Garg, David Langenderfer, Yu Zhang, Sibendu Som   +12 more
doaj   +1 more source

Investigation of the Spray Development Process of Gasoline-Biodiesel Blended Fuel Sprays in a Constant Volume Chamber

Energies, 2020
This study investigated gasoline–biodiesel blended fuel (GB) subjected to a fuel spray development process on macroscopic and microscopic scales. The four tested fuels were neat gasoline and gasoline containing biodiesel (5%, 20%, and 40% by volume) at ...
Kihyun Kim, Ocktaeck Lim
doaj   +1 more source

Comprehensive Spray Characteristics of Water in Port Fuel Injection Injector

Energies, 2020
The objective of this study was to compare the injection and spray characteristics of water with n-heptane using a port fuel injection (PFI) system. In this study, the injection pressure was changed to 0.3−0.9 Mpa and the energizing duration was ...
Jeonghyun Park, Kyung-Hwan Lee, Suhan Park   +2 more
doaj   +1 more source

The Effect of Elliptical Diesel Nozzles on Spray Liquid-Phase Penetration under Evaporative Conditions

Energies, 2020
Elliptical diesel nozzles affect the fuel–air mixing process, and thus combustion and exhaust emissions. Experiments were conducted to study biodiesel spray liquid-phase behaviors for elliptical and circular nozzles through the Mie-scattering method ...
Bifeng Yin, Bin Xu, Hekun Jia, Shenghao Yu   +3 more
doaj   +1 more source

Experimental Investigation on the Effects of Injection Parameters on the Air-Assisted Diesel Spray Characteristics

International Journal of Aerospace Engineering, 2022
The air-assisted fuel injection (AAFI) system may be installed in the spark ignition aviation piston engine for the atomization of heavy fuels. However, studies on the effects of injection parameters on the spray characteristics are insufficient, which ...
Bingxuan Du, Zhenfeng Zhao
doaj   +1 more source

Effects of sprayer speed, spray distance, and nozzle arrangement angle on low-flow air-assisted spray deposition

Frontiers in Plant Science, 2023
Air-assisted spraying technology is widely used in orchard sprayers to disturb canopy leaves and force droplets into the plant canopy to reduce droplet drift and increase spray penetration.
Shiqun Dai, Mingxiong Ou, Wentao Du, Xuejun Yang, Xiang Dong, Li Jiang, Tie Zhang, Suming Ding, Weidong Jia   +8 more
doaj   +1 more source