Results 161 to 170 of about 155,583 (207)
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Effect of the spray cone angle in the spray cooling with R134a
Experimental Thermal and Fluid Science, 2013Spray cooling experiments were performed to study the effect of the spray cone angle on heat transfer and film thickness. The experiments were carried out for three different types of nozzles. Results for heat transfer and film thickness for different flow rates are presented working with the dielectric refrigerant R134a and on a heater with low ...
Eduardo Martínez-Galván +3 more
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Surface Roughness of Thermal Spray Coatings Made with Off-Normal Spray Angles
Journal of Thermal Spray Technology, 1998The formation of a thermal spray coating using an off-normal direction angle for the spray has been analyzed to identify the causes of the large surface roughness of the coating. In the analysis, the string method was used for modeling the formation of the coating.
M.P. Kanouff +2 more
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Effect of spray angle on Ni particle deposition behaviour in cold spray
Surface Engineering, 2018In this work, cold sprayed Ni particles depositing onto stainless steel (SS) and aluminium substrates was studied the deposition behaviour and bonding mechanism at different spray angles. Contrary to common investigation which is limited to the cross-section or surface, the fractured contact surface on deposited particle was obtained by detaching the ...
Yingchun Xie +4 more
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The Influence of Spraying Angle on Properties of HVOF Sprayed Hardmetal Coatings
Journal of Thermal Spray Technology, 2010The spraying angle is one of the deposition parameters that influence the quality of thermally sprayed coatings. In theory, decreasing the spraying angle results in lower process deposition efficiency, whereas the porosity of coatings increases, becoming a cause of poorer microstructure and mechanical properties.
Šárka Houdková +2 more
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Effects of nozzle type and spray angle on spray deposition in ivy pot plants
Pest Management Science, 2010AbstractBACKGROUND: Fewer plant protection products are now authorised for use in ornamental growings. Frequent spraying with the same product or a suboptimal technique can lead to resistance in pests and diseases. Better application techniques could improve the sustainable use of the plant protection products still available.
Dieter, Foqué, David, Nuyttens
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Prediction of Spray Angle from Flat Fan Nozzles
Journal of Agricultural Engineering Research, 1996Abstract This paper presents a numerical approach to relate the spray angle of a flat fan nozzle to its internal geometry. The effect of changing four parameters, the half V-cut angle, the V-cut offset, the input section diameter and the height of the blind end, together with the surface shape immediately upstream of the output orifice have been ...
Q. Zhou +3 more
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Measurements of the Spray Angle of Atomizing Jets
Journal of Fluids Engineering, 1983Liquid jets are considered issuing from single-hole, round nozzles into quiescent gases under conditions such that they break up into a well defined conical spray immediately at the nozzle exit plane. The initial angles of such sprays were measured at room temperature by a spark photography technique.
K.-J. Wu +4 more
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Spray cone angle and its correlation in a high pressure fuel spray
The Canadian Journal of Chemical Engineering, 1985AbstractAn experimental study was conducted to determine the effects of nozzle orifice size and operating parameters on the cone angle of a liquid fuel spray injected into a gaseous environment. High fuel pressures in the range 55 to 130 MPa and background gas density ranging from atmospheric to 40 kg/m3 were used in the study.
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Numerical Analysis of Spray Nozzle for Predicting Spray Cone Angle and Pressure Drop
2nd International Energy Conversion Engineering Conference, 2004The purpose of this study was the numerical simulation of flow within a spray nozzle for high heat flux spray cooling applications. The particular emphasis was on the prediction of free surface structure after the fluid exits the nozzle. The nozzle top plate had four openings; one at the center and other three at a radial location away from the center ...
Muhammad Rahman +4 more
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