Relevant bibliographies by topics / Centrifugal spray / Journal articles

To see the other types of publications on this topic, follow the link: Centrifugal spray.

Journal articles on the topic 'Centrifugal spray'

Author: Grafiati

Published: 30 May 2022

Last updated: 19 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Centrifugal spray.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

Valdberg, A. Y., K. P. Makeeva, and N. E. Nikolaikina. "The study of the disperse composition of the liquid torch spray of centrifugal-jet nozzle." Izvestiya MGTU MAMI 6, no. 2-4 (2012): 7–11. http://dx.doi.org/10.17816/2074-0530-68213.

Full text

Abstract:

This paper presents the results of a research on dispersion of water spray of centrifugal spray nozzle. The values of average droplet size are defined and compared with the known one calculated before. There were made graphics of drops dispersed distribution and graphics where the experimental and calculated values for the arithmetic mean and median mass diameter. The obtained data allow to recommend the calculated dependencies for the assessment of medium-sized drops in the spray of centrifugal-jet spray nozzle.

APA, Harvard, Vancouver, ISO, and other styles

Cao, Na, Liang Cao, Chang Cai Han, et al. "A Study of the Spray Characterization from a Centrifugal Nozzle by Pulsed Laser Holography." Applied Mechanics and Materials 152-154 (January 2012): 846–51. http://dx.doi.org/10.4028/www.scientific.net/amm.152-154.846.

Full text

Abstract:

Centrifugal nozzle is an important part of an areoengine in which fuel atomization has strong influence on engine performance. For investigating the fuel spray characteristics, a promising method named off-axis particle holographic measuring system is used here. Characteristics of the nonevaporating spray ejected from a new type of centrifugal nozzle which would be used in the near future are obtained under various injection conditions. By automatic analysis of the holographic reconstructed droplets images, a hollow-cone shape spray with most droplets concentrated in the surface of the cone is observed, and the spray cone angle, droplet sizes and their spatial locations in concerned region are obtained quantitativly. In the near region of the nozzle exit, droplets show greater SMD value, while at a certain distance from the nozzle, the droplets SMD differences become unconspicuous which shows a better atomization. These informations are helpful to understand characteristics of the centrifugal nozzle and offer a database for validating the spray simulation code.

APA, Harvard, Vancouver, ISO, and other styles

Raju, K., A. P. Harsha, and S. N. Ojha. "Effect of Microstructure on Wear Characteristics of Spray Cast Al-Si Alloys." Materials Science Forum 710 (January 2012): 545–50. http://dx.doi.org/10.4028/www.scientific.net/msf.710.545.

Full text

Abstract:

In the present study, the effect of microstructure on the wear characteristics of spray cast Al-15Si and Al-20Si alloys has been investigated and compared with that of vertical axis centrifugal cast and chill cast alloys. The spray cast alloys have been subjected to Hot Isostatic Pressing for porosity reduction. HIPing has reduced the porosity in the spray cast Al-15Si and Al-20Si alloys from 19% to 8% and 19% to 2% respectively. The microstructures of spray cast alloys consisted of finely divided globular shaped Si particles with sizes varying from 2–10 µm. The Si particles have been distributed uniformly throughout the Al matrix. On the contrary coarse and segregated microstructures have been observed in vertical axis centrifugal cast and chill cast alloys. The sizes of primary and eutectic Si in vertical axis centrifugal cast alloys are smaller than that in chill cast alloys. The wear rates are the lowest for spray cast alloys and highest for chill cast alloys over a wide range of sliding velocity. The reasons for better wear resistance of spray cast alloys have been discussed in the light of the microstructural features evolved during spray casting.

APA, Harvard, Vancouver, ISO, and other styles

Chen, Daner, Zheng Wang, Boyang Yu, et al. "Suppress the aerosol generation from the air turbine handpiece in dental clinics." AIP Advances 12, no. 8 (2022): 085107. http://dx.doi.org/10.1063/5.0095039.

Full text

Abstract:

The COVID-19 pandemic imposes a severe challenge to the health care providers and patients in dental clinics as the dental procedures produce abundant airborne materials. Although dental practices use a multi-layered protective procedure to reduce the potential danger from dental aerosols, it is still beneficial to suppress the aerosol generation from the origin as much as possible. Reducing the aerosol generation (especially the droplets of smaller diameters) from the very beginning will ease the burden on all subsequent layers of protection. In this work, we first provide a relatively complete picture of the structure of the spray produced by the air turbine handpiece. We found that the spray consists of two domains: one is the canopy shaped centrifugal zone and the other is a dense ballistic spray core. The droplets from the centrifugal zone are much smaller than those of the spray core and, hence, are more prone to stay in the air. The location of the centrifugal zone also makes it more challenging to be contained by the mouth or rubber dam. To suppress the atomization of the centrifugal zone, we used the food-additive carboxymethylcellulose sodium (CMC-Na) water solutions of different concentrations. The data show that the viscoelastic property of the 0.5 wt. % CMC-Na water solution can effectively suppress the aerosol generation of the centrifugal zone.

APA, Harvard, Vancouver, ISO, and other styles

Gui, Miao Miao, Yun Hui Fang, Qing Chang Lin, Fei Yu Yu, Tian Xing Lin, and Xiu Xing Ma. "The Preparation Research of Powder Polycarboxylate Superplasticizer." Applied Mechanics and Materials 71-78 (July 2011): 677–83. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.677.

Full text

Abstract:

This paper uses centrifugal spray drying process to prepare powder polycarboxylate superplasticizer. The best spray drying process: speed of centrifugal atomizer is 16000r/min, feed liquid temperature is 30°C, import / export air temperature of drying chamber is 200°C/80°C. It achieves a high concentration of polycarboxylate superplasticizer to prepare powder product. It solves the problem of sticky and low-performance of powder polycarboxylate superplasticizer during traditional preparation. Analyzing the structure of polycarboxylate superplasticizer before and after spray-drying by infrared spectroscopy, and verifying the conclusion through macroeconomic performance experiments.

APA, Harvard, Vancouver, ISO, and other styles

A, TAJUDDIN. "DEVELOPMENT AND TESTING OF DC MOTOR OPERATED KNAPSACK SPRAYERS." Madras Agricultural Journal 85, june (1998): 212–14. http://dx.doi.org/10.29321/maj.10.a00720.

Full text

Abstract:

Three types of knapsack direct-current motor operated sprayers working on the principles if hydraulic, pneumatic and centrifugal atomization respectively were developed and a study was carried out to compare the performance of the three sprayers in terms of spray distribution pattern and stomization characteristics. Among the three sprayers evaluated, centrifugal sprayer performed better with more uniform spray distribution and minimum energy expenditure over the other two sprayers.

APA, Harvard, Vancouver, ISO, and other styles

Franckevich, V., P. Grebenchuk, and P. Minchenko. "INVESTIGATION OF CENTRIFUGAL INJECTORS SLIP ATOMIZER." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 7, no. 9 (2022): 108–15. http://dx.doi.org/10.34031/2071-7318-2022-7-9-108-115.

Full text

Abstract:

The article defines the scope of liquid sprayers in modern technologies. The mechanism of formation of drops from a liquid jet and the parameters of the medium that affect the size of these drops are described. The basic requirements for nozzles and other sprayers used in spray dryers are characterized. It has been established that the most important characteristics of their work are the uniformity of the spray and the dispersion of the drops. A technique for calculating the efficiency of spraying based on experimental data using the irrigation non-uniformity coefficient is proposed. Methods for estimating the dispersion and distribution of droplets produced in a nozzle are described. A modernized design of the nozzle with a swirler and a distributor for use in slip atomizers to produce press powder is proposed. Comparative studies of this nozzle are carried out in order to assess the uniformity of its spray and the dispersion of drops according to the above methods. Photographs of the results of spraying by two proposed methods are presented. Analysis of the research results shows that the modernized nozzle has a significant advantage in comparison with traditional designs in terms of its main performance characteristics. This provides the prospects for its use in spray dryers, in particular, in the production of high quality ceramic press powder.

APA, Harvard, Vancouver, ISO, and other styles

Salikhova, M. N., V. A. Aleksandrov, I. P. Galchak, A. D. Kolga, and V. S. Kukhar. "Factors affecting the highly dispersed spray when applying fertilizers." IOP Conference Series: Earth and Environmental Science 1206, no. 1 (2023): 012041. http://dx.doi.org/10.1088/1755-1315/1206/1/012041.

Full text

Abstract:

Abstract The article is devoted to devices for subsurface fertilization in the form of drip-air mixtures. A comparative analysis of spray mixers with centrifugal and jet nozzles has been carried out. The article presents the results of a study on the spray dependence on the ratio of air and liquid pressure with increasing fluid flow and steady air flow. It has been established that a spray mixer with a centrifugal nozzle gives a thinner spray cone is better in its operational qualities and will more fully meet the requirements for devices for intra-soil application of liquid fertilizers. In addition, it was determined that according to agrotechnical requirements, the average diameter of liquid droplets injected into the soil must be kept constant, and the flow rate must be changed, leaving the device speed and the compressor operating mode unchanged.

APA, Harvard, Vancouver, ISO, and other styles

Nazim Ibrahimov, Khadija Heydarli, Nazim Ibrahimov, Khadija Heydarli. "DEVELOPMENT OF RECOVERY TECHNOLOGY OF CENTRIFUGAL PUMP IMPELLER IN PLASMA SPRAY DEVICE." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 43, no. 08-01 (2024): 566–71. http://dx.doi.org/10.36962/pahtei4308012024-63.

Full text

Abstract:

Modern oil field pumps are widely used in drilling and operation of wells. Most of the pumps used in drilling oil wells are centrifugal pumps. Centrifugal pumps fail for many reasons after a long period of operation. One of the most important parts of these pumps is the impeller. Impeller failures lead to stoppages in centrifugal pumps. In order to prevent stoppages, it is necessary to increase longevity and extend the time between repairs, eliminate malfunctions in the impeller. The main causes of failure are vibration and cavitation, corrosion and wear in the pump. The article concerns the process of removing the layer by plasma spraying performed to increase the resistance to corrosion and wear of the centrifugal pump impeller. Chromium, nickel, tungsten and molybdenum scraps were used to obtain this layer. Keywords: Centrifugal pump, impeller, erosion, cavitation, plasma method, layer removal, stops.

APA, Harvard, Vancouver, ISO, and other styles

Gadalov, V. N., A. V. Filonovich, O. M. ,. Gubanov, and A. A. Chuichenko. "Numerical study of the decay model of liquid paint coatings on the example of their spraying by a centrifugal nozzle in the air." Glavnyj mekhanik (Chief Mechanic), no. 3 (February 28, 2023): 144–48. http://dx.doi.org/10.33920/pro-2-2303-02.

Full text

Abstract:

The technique of numerical simulation of the process of applying a liquid paint coating with an electric spray gun by airless spraying using a centrifugal nozzle is presented. Studies of the dynamics of the motion of a liquid paint particle in a centrifugal nozzle with a choice of its optimal parameters are presented

APA, Harvard, Vancouver, ISO, and other styles

Gadalov, V. N., A. V. Filonovich, O. M. Gubanov, and A. A. Chuichenko. "Investigation of the decay model of liquid paint coatings when sprayed in air." Glavnyj mekhanik (Chief Mechanic), no. 10 (October 10, 2023): 634–35. http://dx.doi.org/10.33920/pro-2-2310-07.

Full text

Abstract:

APA, Harvard, Vancouver, ISO, and other styles

Wang, Yi, and De Ping Zhu. "A New Spray Desuperheater Structure Design." Advanced Materials Research 718-720 (July 2013): 1630–33. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1630.

Full text

Abstract:

A new spray desuperheater is designed, whose characteristic is using the combination technology of centrifugal nozzle and two-level venturi pipes. According to the application of the technology, the paper reveals the technical principle and structure design. The spray desuperheater has excellent spray atomization effect, and it can regulate the steam temperature in a wide range. So it can ensure the efficient heat exchanger and safe operation for boiler.

APA, Harvard, Vancouver, ISO, and other styles

Zaror, C. A., and J. R. Pérez-Correa. "Model based control of centrifugal atomizer spray drying." Food Control 2, no. 3 (1991): 170–75. http://dx.doi.org/10.1016/0956-7135(91)90086-c.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Kang, Jinxin, Yiheng Tong, Chuanjin Jiang, Songjiang Feng, and Mingxue Shao. "Study on the Influence of Low-Frequency Flow Oscillation on the Atomization Characteristics of Gas-Centered Coaxial Centrifugal Nozzle." Journal of Physics: Conference Series 2458, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1742-6596/2458/1/012005.

Full text

Abstract:

Abstract The dynamic atomization characteristics of gas center coaxial centrifugal nozzle under the condition of pressure oscillation in the supply system were studied by applying external excitation through the flow pulsator. Obtaining spray image by high-speed photography while using hydro-mechanical pulsator to get generate of supply system. The results show that the spray width changes periodically with low-frequency pressure oscillation. For self-pulsation sprays, it is challenging to maintain a “Christmas tree” shape with low-frequency oscillation. Pressure oscillation can effectively suppress spray self-pulsation. However, the pressure oscillation amplitude may be much larger than that of the self-pulsation itself. Therefore, the premise of applying this method is that the applied external excitation cannot stimulate or amplify the combustion instability. The gas post-pressure drop determines the amplitude and frequency of the self-pulsation, while the excitation frequency will slightly affect the amplitude and frequency of the self-pulsation.

APA, Harvard, Vancouver, ISO, and other styles

Baio, Fábio Henrique Rojo, Job Teixeira de Oliveira, Marcos Eduardo Miranda Alves, Larissa Pereira Ribeiro Teodoro, Fernando França da Cunha, and Paulo Eduardo Teodoro. "Characterization of the Droplet Population Generated by Centrifugal Atomization Nozzles of UAV Sprayers." AgriEngineering 7, no. 1 (2025): 15. https://doi.org/10.3390/agriengineering7010015.

Full text

Abstract:

The use of unmanned aerial spraying systems is currently being explored and applied worldwide. The objective of this study was to characterize the droplet population generated by hydraulic nozzles and centrifugal atomization nozzles used in sprayers mounted on remotely piloted aircraft (RPA). Two spray nozzle technologies were tested using a Malvern SprayTech laser particle size meter. The hydraulic nozzle evaluated was model 11001, which generates a wide-use fan spray. The centrifugal atomization nozzle, used in RPA sprayers, was manufactured by Yuenhoang, model DC12V. The experimental design was implemented in a completely randomized scheme, containing variations in the nozzles (hydraulic nozzle and centrifugal atomization nozzle) and application rate (AR) (5, 10, and 15 L ha−1 in the test with the hydraulic nozzle; and 9.2, 12.8, and 15.6 L ha−1 in the test with the centrifugal nozzle), with five replicates per treatment. The hydraulic nozzle test data showed a coefficient of variation of 6.8% VMD for all treatments, with droplet sizes within the fine classification ranging from 132.8 to 163.2 µm. It is noteworthy that the average relative span (span) of the droplet population generated by the hydraulic nozzle was 1.2, i.e., 20% higher than the desired reference value of 1. This value exceeds the general average reported for the centrifugal atomization nozzle, which has a span of 1.1. The relative span of the droplet size distribution for the hydraulic nozzles is greater than that observed with the centrifugal atomization nozzles. Excluding the extreme rotational speeds of the centrifugal atomization nozzle, the percentage of droplets generated with a volume smaller than 100 µm is lower compared to those produced by the hydraulic nozzle.

APA, Harvard, Vancouver, ISO, and other styles

Gobyzov, Oleg, Mikhail Ryabov, Konstantin Inzhevatkin, Artur Bilsky, and Dmitriy Markovich. "Planar laser-induced fluorescence measurement of the angular pattern of the cone-shaped spray." EPJ Web of Conferences 269 (2022): 01018. http://dx.doi.org/10.1051/epjconf/202226901018.

Full text

Abstract:

In the present work, a PLIF-based approach for a large cone-shaped spray patternation ispresented and experimental results of its application are discussed. The patternation approach is based on simple time-averaged PLIF imaging. Special attention is paid to the image and data processing in order to simplify a patternation results interpretation. Experimental testing was performed on a water spray, formed by centrifugal nozzle at atmospheric ambient pressure. Circumferential relative concentration profiles in spray crosswise plane are presented in the paper and their validity is analysed.

APA, Harvard, Vancouver, ISO, and other styles

Cui, Chun Xiang, Yan Chun Li, Tie Bao Wang, Shuang Jin Liu, and Suek Bong Kang. "Interaction Mechanism between In Situ Nb₂C-V₂C Nanoparticles and S/L Interface during the Rapid Solidification of Fe-Nb-V Alloy." Advanced Materials Research 415-417 (December 2011): 285–88. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.285.

Full text

Abstract:

This paper deals with the interaction mechanism between in situ Nb2C-V2C nanoparticles and solid/liquid interface during the rapid solidification of Fe-Nb-V alloy ribbons. In situ Nb2C-V2C nanoparticles reinforced Fe alloy matrix composite were carried out by in situ reaction and melt spun with a high-speed centrifugal spray. According to the setting of a force balance for the in situ nanoparticles in front of the S/L interface during the high-speed centrifugal spray of Fe-Nb-V alloy melt as following: F = Fbuoyant force + Frepulsive + Fviscous force + Fcentrifugal force, authors get the critical velocity that S/L interface engulfs particles is proportional to the radius of particles. TEM observation indicates that the less the size of particle is, the more easily S/L interface engulfs particles.

APA, Harvard, Vancouver, ISO, and other styles

Wu, Min, and Gary M. Hieftje. "A New Spray Chamber for Inductively Coupled Plasma Spectrometry." Applied Spectroscopy 46, no. 12 (1992): 1912–18. http://dx.doi.org/10.1366/0003702924123647.

Full text

Abstract:

A new type of spray chamber is evaluated for inductively coupled plasma emission spectrometry. The new design combines gravitational, centrifugal, turbulent and impact loss mechanisms in one apparatus to efficiently remove large droplets, increase transport efficiency and reduce memory effects. Compared with the commonly used Scott-type spray chamber, the new vertical rotary spray chamber has at least 30% higher sample-utilization efficiency, 2–3 times shorter sample clean-out time, half the cost, and simplified construction. Moreover, it offers somewhat better signal-to-background ratios, detection limits, and precision.

APA, Harvard, Vancouver, ISO, and other styles

Li, Peng, Shizhong Wei, Xianqing Lei, Lu Yang, Bo Sun, and Shuaiwu Tong. "Modeling and Analysis of Metal Liquid Film Flow Characteristics during Centrifugal Spray Forming." Metals 13, no. 10 (2023): 1687. http://dx.doi.org/10.3390/met13101687.

Full text

Abstract:

Liquid films are an important part of liquid metal granulation in the process of centrifugal spray forming. The size of the granulated particles has an important influence on the density, grain size and microstructure uniformity of the deposited blanks. The particle size is closely related to the flow characteristics of liquid films. Therefore, enhancing our understanding of the flow characteristics of liquid films can provide guidance for forming blanks. In this study, force analysis of a liquid film on the surface of a high-speed rotating centrifugal disc used in centrifugal spray-forming technology was carried out using D’Alembert’s principle and Newton’s law of viscosity. Then, combined with the principle of mass conservation, a theoretical model of the smooth flow of the liquid metal film was established. The experimental values obtained by Leshev were compared with our values to verify the correctness and accuracy of the model. Through the model, the influencing factors of the liquid film flow were obtained, such as the centrifugal disc speed, centrifugal disc radius, inlet volume flow rate and kinematic viscosity. Taking A390 aluminum alloy as the research object, the influence of the process parameters on the thickness, velocity and trajectory of the liquid film was revealed theoretically, and the relationship between the process parameters and the trajectory length and liquid film thickness was clarified. Modeling and analysis can not only help us to understand the flow of a liquid film, but also help us to predict the relevant parameters, which is convenient for the accurate and rapid regulation of the process to obtain the desired flow parameters. Therefore, the research content of this paper is of great significance for the preparation of billets with a uniform microstructure and excellent mechanical properties.

APA, Harvard, Vancouver, ISO, and other styles

Arkhipov, V. A., A. P. Berezikov, A. S. Zhukov, I. R. Akhmadeev, and S. S. Bondarchuk. "Laser diagnostics of the centrifugal nozzle spray cone structure." Russian Aeronautics (Iz VUZ) 52, no. 1 (2009): 120–24. http://dx.doi.org/10.3103/s1068799809010218.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Vásquez, R. A., and F. S. Costa. "SPRAY CONE ANGLES GENERATED BY A DUAL CENTRIFUGAL INJECTOR." Revista de Engenharia Térmica 13, no. 1 (2014): 36. http://dx.doi.org/10.5380/reterm.v13i1.62067.

Full text

Abstract:

A dual pressure swirl injector is characterized by two independent concentric chambers which can provide independent rotational levels to a single liquid or two different liquids. This paper compares theoretical, semi-empirical and experimental results concerning the spray cone angles formed by injection of water, ethanol and biodiesel through a dual pressure swirl injector. Data are obtained for injection of the same liquid through the primary and secondary chambers and for injection of ethanol in the primary chamber and biodiesel through the secondary chamber of the injector. Experimental data are obtained using photographic techniques and are analyzed by an image processing software developed in Matlab language.

APA, Harvard, Vancouver, ISO, and other styles

Cheng, Xiao Su, Meng Qi Peng, and Yu Fa Zhong. "Process Factors Using Centrifugal Spray Drying to Prepare Bauxite Microspheres." Advanced Materials Research 399-401 (November 2011): 828–33. http://dx.doi.org/10.4028/www.scientific.net/amr.399-401.828.

Full text

Abstract:

The centrifugal spray drying process of bauxite slurry was studied to investigate the influence of slurry solid content on the particle size distribution and the sphericity of the microspheres, and so was operation technology on average diameter and the sphericity of the microspheres. The optimal operation parameters are obtained to prepare high spherical microspheres bauxite with the diameter distribution of 100 μm and whose particle size distribution is narrow: the slurry solid content is 70 wt%, the dry air temperature is 250 °C, the rotation rate of spray head is 6000 rpm and the feed flow rate is 1 L/h in the experiments.

APA, Harvard, Vancouver, ISO, and other styles

Gong, Yan, Xiao Bing Chen, Yan Liu, Liang Pei, and Jing Chao Zhang. "Design and Test of Controlled Droplet Sprayer for Facility Agriculture." Key Engineering Materials 575-576 (September 2013): 481–86. http://dx.doi.org/10.4028/www.scientific.net/kem.575-576.481.

Full text

Abstract:

This article describes a new and efficient type spraying equipment with core technology of controlled droplet (centrifugal atomization), and describes the overall design of the equipment, technical characteristics and innovation. The test results show that the equipment has the following characteristics: precisely controlled droplet diameter, real-time, precisely adjusted spray flow, three-dimensional space evenly spray, and the operating status could be remotely controlled by automation. It is new type spray equipment for facility agriculture applicable for different crop varieties, crop growth period, control objects, pesticide formulations, as well as operating environment inside the green house.

APA, Harvard, Vancouver, ISO, and other styles

Wang, Guobin, Tongsheng Zhang, Cancan Song, et al. "Evaluation of Spray Drift of Plant Protection Drone Nozzles Based on Wind Tunnel Test." Agriculture 13, no. 3 (2023): 628. http://dx.doi.org/10.3390/agriculture13030628.

Full text

Abstract:

The use of drones in agriculture is expanding at a brisk pace in crop production due to the superiority in precision, efficiency, and safety of their applicators. However, their potential drift risk also raises concern for users and regulatory authorities. The method of wind tunnel research can effectively evaluate the weighted influence of each drift factor, especially the drift characteristics of the nozzle and spray solution. Based on the wind tunnel test results, centrifugal nozzles have a higher drift risk than hydraulic nozzles, even with a similar DV50. The cumulative drift rate of the centrifugal nozzle at 2 m downwind was 90.1% compared to the LU12001 nozzle’s 40.6% under the wind speed of 3.5 m/s. Compared with the same coding as the flat fan hydraulic nozzle, the IDK nozzle can effectively reduce the drift rate. For the tested nozzles, DV50 and wind speed had a linear relationship with drift rate, and the sampling location had an exponential or logarithmic relationship with drift rate. Spray adjuvants, especially modified vegetable oils, had a significant effect on reducing the amount of drift. The results of this experiment provide a reference for the selection of nozzles and the addition of spray adjuvants. Further clarifying the spray drift characteristics of drones until a drift prediction model is available is still the focus of research.

APA, Harvard, Vancouver, ISO, and other styles

Arkhipov, V. A., S. A. Basalaev, N. N. Zolotorev, and A. S. Usanina. "Laser diagnostics of the spray cone characteristics in centrifugal sprayer." Journal of Physics: Conference Series 1105 (November 2018): 012080. http://dx.doi.org/10.1088/1742-6596/1105/1/012080.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Yang, Zhou, Jiaxiang Yu, Jieli Duan, Xing Xu, and Guangsheng Huang. "Optimization-Design and Atomization-Performance Study of Aerial Dual-Atomization Centrifugal Atomizer." Agriculture 13, no. 2 (2023): 430. http://dx.doi.org/10.3390/agriculture13020430.

Full text

Abstract:

The aerial atomizer is the most essential component of the plant protection UAV (unmanned aerial vehicle). However, the structural optimization of existing aerial atomizers lacks comprehensive consideration of spray parameters and structural parameters, and there is a shortage of available atomizer spray models, resulting in the unstable effect of UAV application. In our previous work, an aerial dual-atomization centrifugal atomizer was developed. In order to obtain an aerial atomizer with good atomization effect and its atomization model, structural optimization at different rotation speeds and flow rates of the atomizer, and its atomization performance, are studied in this paper. Firstly, with the droplet volume median diameter (VMD) and spectral width (SRW) as the evaluation index, through the single-factor, Plackett–Burman and Box–Behnken tests, the influence of rotation speed, flow rate, tooth number and tooth shape were studied. The regression models of the droplet VMD and SRW were established using multiple quadratic regression fitting of the test data. Secondly, in order to achieve the lowest droplet VMD and SRW, the response surface method and post-hoc multiple comparison method were used to obtain the optimized structure of the atomizer’s rotation ring at different rotation speeds (600–7000 mL/min) and flow rates (500–1000 mL/min). Lastly, with the effective swath width (ESW) of the optimized atomizer as the evaluation index, through the Box–Behnken test, the influence of rotation speed, flow rate and spray height were studied. The multiple quadratic regression model of ESW was established with the test data. The test results indicated that rotation speed, flow rate and tooth number had a significant effect on droplet VMD and SRW; tooth shape had no significant effect on the droplet VMD and SRW, however, the square tooth shape had the best atomization effect; and rotation speed, flow rate and spray height had a significant effect on ESW. The optimized structural parameters were tooth shape: square, and tooth number: 20. The determination coefficient of the regression model of VMD, SRW and ESW were 0.9976, 0.9770 and 0.9974, respectively, which indicates that the model was accurate, and can evaluate and predict the spray effect. This paper provides an optimized dual-atomization centrifugal atomizer, and its regression models of VMD, SRW and ESW for UAV applications can provide a reference for efficient UAV spraying.

APA, Harvard, Vancouver, ISO, and other styles

Saveliev, A. S. "Formation of a Spray of Conducting Liquid under High Voltage and Electrical Discharge Plasma." Физика плазмы 49, no. 11 (2023): 1237–46. http://dx.doi.org/10.31857/s0367292123600966.

Full text

Abstract:

The joint impact of an electrical discharge and a gas–droplet flow of a conducting liquid created by a centrifugal nozzle is studied. In the experiment, the electrical parameters of the discharge are recorded, and the local characteristics of the spray, namely, the droplet diameter distributions of the number of droplets and the components of their velocity vector are measured. The measurements are carried out using double shadow microphotography. The effect of a spray of a conducting liquid on the time-averaged electrical parameters of the discharge, as well as changes in the properties of the spray under the influence of high voltage and current, are studied. Additionally, the spray characteristics are measured when a high voltage of pre-breakdown value is applied. High-speed photography of a discharge in the presence of droplets of conducting liquid is carried out.

APA, Harvard, Vancouver, ISO, and other styles

Ranabhat, Saurav, and Randy Price. "Effects of Flight Heights and Nozzle Types on Spray Characteristics of Unmanned Aerial Vehicle (UAV) Sprayer in Common Field Crops." AgriEngineering 7, no. 2 (2025): 22. https://doi.org/10.3390/agriengineering7020022.

Full text

Abstract:

Effective spraying is an important component of precision agriculture, directly influencing the efficiency of the spray materials. Despite their potential, optimal settings for sprayer drones remain underexplored due to limited research data. This study evaluates the effects of various flight heights and nozzle types on spray characteristics in cotton, soybean, and sugarcane crops using an unmanned aerial vehicle (UAV) sprayer. Three different flight heights and two or three nozzle types were evaluated for their impacts on spray deposition, coverage percentage, and droplet size distribution at three different canopy levels of these crops. The results indicated that lower flight heights significantly increased spray deposition and coverage in the upper canopy levels of cotton and sugarcane. Centrifugal nozzles consistently produced greater coverage and spray deposition in sugarcane. Some significant interactions among these factors were also explored. The findings highlight the potential for UAV sprayers to optimize spraying in crops with various morphologies by adjusting flight height and nozzle type.

APA, Harvard, Vancouver, ISO, and other styles

Zhao, Ning, Yongxin Feng, Debo Li, and Zongkun Li. "Simulation Study on Centrifugal Spray Evaporation Characteristics and Process Optimization of Desulfurization Wastewater." Coatings 11, no. 7 (2021): 837. http://dx.doi.org/10.3390/coatings11070837.

Full text

Abstract:

As an advanced treatment of desulfurization wastewater, centrifugal spray drying technology, which can achieve a zero liquid discharge target, has attracted wide attention and great interest in recent years. However, the results of previous studies were based on the laboratory-scale centrifugal spray dryer. In order to study the evaporation characteristics of desulfurization wastewater and the parameter optimization of the dryer, the evaporation model of wastewater droplets was established. The effects of parameters such as the angle of the deflectors, gas–liquid ratio and atomizer speed on droplet evaporation were studied by numerical simulation. The results show that with the increase in the angle of the deflectors, the swirl effect of flue gas flow field is more obvious and the time and axial distance required for the complete evaporation of the droplets are shorter. Reducing the gas–liquid ratio will make the average evaporation time longer. Moreover, a higher atomizer speed is helpful for the evaporation of the droplets. The optimum gas–liquid ratio and rotational speed are found to be 9300 m3/Nm3 and 16,000 rpm, respectively.

APA, Harvard, Vancouver, ISO, and other styles

Vambol, S., N. A. Khan, A. H. Khan, et al. "Developed jet-centrifugal spray devices: experimental testing to establish the possibility of their application in plants spraying technologies." Journal of Achievements in Materials and Manufacturing Engineering 1, no. 102 (2020): 30–41. http://dx.doi.org/10.5604/01.3001.0014.6326.

Full text

Abstract:

Purpose: Experimentally substantiate the possibility of using the developed jet-centrifugal spraying device in plants spraying technologies. Design/methodology/approach: Many years of experience in creating spraying devices for solving practical problems in various industries made it possible to propose a design diagram of a single-phase jet-centrifugal spraying device. The tests were aimed at achieving device characteristics that are acceptable for use in plants spraying technologies such as jet coverage distance, droplet size and droplet deposition area (spray diameter). For this a several tests series with different design parameters was done. Before testing, the tightness of the device body was checked (the holding time under a pressure of 1 MPa is not less than 2 minutes). Findings: Based on the obtained jet coverage distance, droplet size and droplet deposition area, the developed spray device of some modifications can be used in plants spraying technologies. However, it is necessary to determine the quality of the spray device according to the BCPC classification; the device should be tested with some insecticides, fungicides and in plants spraying technologies to develop recommendations for their use. Research limitations/implications: The influence of design features of developed jetcentrifugal spray device on the jet coverage distance, droplet size and droplet deposition area was studied. Practical implications: The results obtained are useful in the field of improving national plants spraying technologies in order to improve the quality of the plant protection agent application and reduce the loss of the drug into the environment. Originality/value: To ensure maximum efficiency the proposed design of the jetcentrifugal spray device can be upgraded directly by the farmer by installing interchangeable nozzles that are attached with a union nut. Replaceable nozzles have different diameters and modifications and can be selected depending on the required jet coverage distance and spraying dispersion according to the current environmental conditions.

APA, Harvard, Vancouver, ISO, and other styles

Pramuhadi, Gatot, Josua Natanael, and Nenda Fuji Putri Daliesta. "Study of Spray Fogging Performance Using a Combination of Fogging Machine, Electric Sprayer, and Air Blower." Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 14, no. 3 (2025): 866. https://doi.org/10.23960/jtep-l.v14i3.866-878.

Full text

Abstract:

This study aims to determine and analyze the parameters of spray fogging performance for the application of pesticide fog. Air blower spraying performance can be increased by regulating the type of fan and type of air blower. Setting the type of fan in air blower is axial fan and centrifugal combined with cone of 4, 6, and 8 holes. The most optimum combination of the test treatment is the combination of axial fan air blower and 4-hole cone. Spray fogging can be increased by adjusting the combination spray angle between fogging machines and air blowers at various observation distances. The combination spray angle setting is angle of 15°, 30°, and 45° and the observation distance of 1 meter to 4 meters. The results of the analysis and determination of spray fogging performance parameters produce an angle of 45° as the most optimum spray angle from the observation distance of 1 meter to 4 meters. This is indicated by the average value of the droplet diameter of 78.74 μm, a 70 droplet/cm2 droplet density, an air flow speed of 1.97 m/s, and the temperature of the flocking of 31.8℃. Keywords: Air blower, Droplets, Fogging, Nozzle, Spray.

APA, Harvard, Vancouver, ISO, and other styles

Li, Peng, Shizhong Wei, Xianqing Lei, Lu Yang, and Bo Sun. "Study on Flight Dynamics and Heat Transfer Solidification of Metal Droplets during Centrifugal Spray Deposition Forming Process." Metals 13, no. 8 (2023): 1446. http://dx.doi.org/10.3390/met13081446.

Full text

Abstract:

Centrifugal spray deposition forming technology, which is used in the preparation process of near-net-forming billets, not only reduces the macroscopic segregation and refines the microstructures of billets but also has the characteristics of a rapid solidification structure. The trajectory, velocity, heat transfer and solidification of metal droplets granulated by the centrifugal force during flight will affect the shape, precision and microstructure of the billet. Therefore, it is necessary to study the dynamics and thermal history of droplets in flight. In this study, a single droplet is taken as the object. Considering the resistance of ambient gas, Newton’s second law, classical nucleation theory, Newton’s cooling law and the energy conservation equation were used to establish a dynamic model and heat transfer solidification model of liquid metal droplets during flight. The influence of the centrifugal disc speed on the diameter of granulated droplets was analyzed. The variation law of droplet flight trajectory and velocity was explored. The supercooling degree in metal droplet nucleation was quantified, and the influence of droplet diameter, superheat and other factors on heat transfer and solidification was revealed. The results show that the numerical calculation results are basically consistent with the previous research results. The trajectory of the droplet is parabolic during flight. The initial velocity of the droplet, the environmental gas resistance and the convective heat transfer coefficient are positively correlated with the rotating speed of the centrifugal disc; however, the droplet diameter is negatively correlated with the rotating speed of the centrifugal disc. The super cooling degree at the time of droplet nucleation and the flight time required for solidification are negatively correlated with the droplet diameter. Among them, the droplet diameter has a linear relationship with the solidification start time and a quadratic curve relationship with the solidification end time. The effect of superheat on the heat transfer and solidification of droplets is not obvious. The conclusions obtained can provide a theoretical basis for the determination of the preparation process parameters.

APA, Harvard, Vancouver, ISO, and other styles

Ayala, Eduardo, Diego Rivera, Julio Ronceros, Nikolai Vinces, and Gustavo Ronceros. "Design of a Cryogenic Duplex Pressure-Swirl Atomizer through CFDs for the Cold Conservation of Marine Products." Fluids 8, no. 10 (2023): 271. http://dx.doi.org/10.3390/fluids8100271.

Full text

Abstract:

The following article proposes the design of a bi-centrifugal atomizer that allows the interaction of sprays from two fluids (water and liquid nitrogen). The liquid nitrogen (LN2) is below −195.8 °C, a temperature low enough for the nitrogen, upon contact with the atomized water, to cause heat loss and bring it to its freezing point. The objective is to convert the water droplets present in the spray into ice. Upon falling, the ice particles can be dispersed, covering the largest possible area of the seafood products intended for cold preservation. All these phenomena related to the interaction of two fluids and heat exchange are due to the bi-centrifugal atomizer, which positions the two centrifugal atomizers concentrically, resulting in the inevitable collision of the two sprays. Each of these atomizers will be designed using a mathematical model and CFDs tools. The latter will provide a better study of the flow behavior of both fluids inside and outside the bi-centrifugal atomizer. Hence, the objective revolves around confirming the validity of the mathematical model through a comparison with numerical simulation data. This comparison establishes a strong correlation (with a maximum variance of 1.94% for the water atomizer and 10% for the LN2 atomizer), thereby ensuring precise manufacturing specifications for the atomizers. It is important to highlight that, in order to achieve the enhanced resolution and comprehension of the fluid both inside and outside the duplex atomizer, two types of meshes were utilized, ensuring the utilization of the optimal option. Similarly, the aforementioned meshes were generated using two distinct software platforms, namely ANSYS Meshing (tetrahedral mesh) and ANSYS ICEM (hexahedral mesh), to facilitate a comparative analysis of the mesh quality obtained. This comprehension facilitated the observation of water temperature during its interaction with liquid nitrogen, ultimately ensuring the freezing of water droplets at the atomizer’s outlet. This objective aligns seamlessly with the primary goal of this study, which revolves around the preservation of seafood products through cold techniques. This particular attribute holds potential for various applications, including cooling processes for food products.

APA, Harvard, Vancouver, ISO, and other styles

Zhu, Zhaoyan, Mengran Yang, Yangfan Li, et al. "Optimization Design and Atomization Performance of a Multi-Disc Centrifugal Nozzle for Unmanned Aerial Vehicle Sprayer." Agronomy 14, no. 12 (2024): 2914. https://doi.org/10.3390/agronomy14122914.

Full text

Abstract:

The nozzle is a crucial component in unmanned aerial vehicle (UAV) sprayers. The centrifugal nozzle offers unique advantages; however, there is a scarcity of published research regarding the structural parameters, spraying parameters, and practical applications specifically for UAV spraying. Furthermore, there is a need for UAV-specific nozzles that demonstrate high efficiency and excellent atomization performance. In this present study, a multi-disc centrifugal nozzle (MCN) capable of controlling droplet size was designed and optimized. The droplet size spectra with different atomizing discs were tested, and indoor and field tests were conducted to investigate the atomization and spray deposition characteristics of the MCN. It was found that the MCN with six atomizing discs with a curved groove, a disc angle of 120°, and a disc diameter of 77 mm demonstrated better atomizing performance. The volume median diameter was 96–153 μm, and the relative span was 1.0–1.3. Compared with the conventional hydraulic nozzle, this nozzle increased the effective spray swath width from 2.5–3.0 m to 4.0–5.0 m and promoted the average deposition rate by 132.4% at a flying height of 1.0 m and a flying speed of 3.0 m/s, which tends to raise the operation efficiency by four to five times. This study can provide a reference for the design and optimization of centrifugal nozzles for a UAV sprayer and the selection of operating parameters in aerial spraying operations.

APA, Harvard, Vancouver, ISO, and other styles

Tashybayeva, M. M., А. K. Kakimov, A. B. Bakiyeva, G. A. Zhumadilova, and A. M. Muratbayev. "An installation for producing capsules by spraying." Journal of Almaty Technological University 148, no. 2 (2025): 89–98. https://doi.org/10.48184/2304-568x-2025-2-89-98.

Full text

Abstract:

A gear pump and a centrifugal spray nozzle were used in the encapsulation unit. 0.8% and 1% sodium alginate were obtained for the encapsulated material. The capsules obtained in a concentration of 1% sodium alginate during the experiment were rounded and homogeneous, soft but stable under physical influence, and had an average diameter of 1,2×10-3м. To get one kilogram of mk capsules, it is necessary to take Vz=1,404·10-3 м3 from the volume filled with capsules. This corresponds to the set productivity per hour. Turbulent motion is characterized by continuous mixing of liquid particles. Basically, transverse movements of particles moving longitudinally occur along the flow, the trajectories of which are very complex. Centrifugal nozzles are widely used in modern spray devices, which is explained by the simplicity of their design, reliability and efficiency of spraying. The main difference between a centrifugal nozzle and other types of sprayers is that the liquid passing through it is twisted, that is, it acquires a moment of magnitude relative to the axis of the nozzle. The pressurized liquid is pumped through the inlet channel into the torsion chamber, where it circulates intensively. The technological scheme of the installation is based on the operator's scheme. 𝑭𝒊 = 𝟎, 𝟑𝟒𝟑 for the number of significantly smaller degrees of freedom than in this table, Fтаб =1,02 the calculated values of the Fisher criterion were obtained as a result of calculations in the mathematical processor f1 = 3, f2 = 4 and the degree of significance α = 0,1 MathCad.

APA, Harvard, Vancouver, ISO, and other styles

Barratt, M. D., A. L. Dowson, and M. H. Jacobs. "The microstructure and properties of IN718 rings produced by centrifugal spray deposition." Materials Science and Engineering: A 383, no. 1 (2004): 69–77. http://dx.doi.org/10.1016/j.msea.2004.02.042.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Kazama, S. "Steady-state paint flow under high centrifugal force: atomization in spray painting." JSAE Review 24, no. 4 (2003): 489–94. http://dx.doi.org/10.1016/s0389-4304(03)00075-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Zhao, Y. Y. "Modelling deposit growth on tilted rotating cylindrical substrate in centrifugal spray deposition." Powder Metallurgy 43, no. 2 (2000): 117–22. http://dx.doi.org/10.1179/003258900665862.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Hayashi, Hiromichi, and Seichi Takeda. "SPRAY DRYING CHARACTERISTICS BY A CENTRIFUGAL PRESSURE NOZZLE WITH LARGE ORIFICE DIAMETER." Drying Technology 4, no. 3 (1986): 331–42. http://dx.doi.org/10.1080/07373938608916333.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Hwang, Seok-Joon, Jeong-Hyeon Park, Ju-Yeon Lee, Ki-Duck Kim, Beom-Soo Shin, and Ju-Seok Nam. "Spray Pattern Analysis for a Centrifugal Fertilizer Distributor with Two Shutter Holes." Korean Society of Manufacturing Process Engineers 18, no. 10 (2019): 8–19. http://dx.doi.org/10.14775/ksmpe.2019.18.10.008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Špalek, O., J. Hrubý, M. Čenský, V. Jirásek, and J. Kodymová. "Centrifugal spray generator of singlet oxygen for a chemical oxygen-iodine laser." Applied Physics B 100, no. 4 (2010): 793–802. http://dx.doi.org/10.1007/s00340-010-4061-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Si, Hai Bing, Chang Zhou, Zhong Liu, Yi Lei, Wen Jie Fang, and Fa Jun Zhang. "The Experimental Study about Relationship of Centrifugal Fan Shape and Tuyeres Wind Speed." Advanced Materials Research 490-495 (March 2012): 2636–41. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.2636.

Full text

Abstract:

This paper mainly study the relationship between the different shape of air-out tube and the wind velocity based on variable frequency centrifugal fan.Several common shape of pipeline spouts were tested in the static environment in this experiment,the test results were made data process and theoretic original discussion,and we deduced a formula about the relationship between the effective velocity and distance.Finally,we obtained the reference valuable spout shape in the practical spray engineering.

APA, Harvard, Vancouver, ISO, and other styles

Li, Tianwen, Nanjia Yu, Zeng Zhao, and Yaming Zhao. "Experimental Investigation on a Throttleable Pintle-Centrifugal Injector." Applied Sciences 15, no. 5 (2025): 2696. https://doi.org/10.3390/app15052696.

Full text

Abstract:

This paper presents the design and experimental evaluation of a throttleable pintle-centrifugal injector system tailored for hybrid rocket engines, aimed at improving combustion efficiency and enabling precise throttling control. The novel injector system combines the principles of swirl injection and pintle-based throttling, offering fine adjustment of oxidizer flow rates to optimize combustion dynamics. Cold-flow experiments using deionized water were conducted to assess the injector’s performance across a range of flow rates and pintle strokes. Results demonstrate that the pintle stroke effectively regulates injection pressure drop and atomization characteristics, with significant improvements observed in spray cone angle and droplet size distribution. The injector system achieved a pressure drop variation ratio of 4.162 at a flow rate adjustment ratio of 6.841, indicating a strong capacity for deep throttling. These findings highlight the potential of the pintle-centrifugal injector to enhance the performance and adaptability of hybrid rocket motors, offering promising applications in modern aerospace propulsion systems.

APA, Harvard, Vancouver, ISO, and other styles

Yakupov, A., R. Aкhunov, A. Subhangulov, and V. Bajburin. "JUSTIFICATION OF THE DESIGN OF AN EXPERIMENTAL DEVICE FOR PRE-SOWING PREPARATION OF SEED MATERIAL." RUSSIAN ELECTRONIC SCIENTIFIC JOURNAL 37, no. 3 (2020): 46–55. http://dx.doi.org/10.31563/2308-9644-2020-37-3-46-55.

Full text

Abstract:

An experimental etcher – inlayer of potato tubers is proposed, containing a chamber for coating tubers with a liquid preparation, with a sieve and a centrifugal spray installed in it, and a chamber for coating with a powdered preparation. A model that is as close as possible to the real process is constructed and justified, a visualization of the process is obtained on its basis, and optimal operating modes are established. Conclusions are given based on the research results.

APA, Harvard, Vancouver, ISO, and other styles

Batalov, B. G., and R. A. Stepanov. "Mathematical modeling of the droplet flow of a spraying device." ВЕСТНИК ПЕРМСКОГО УНИВЕРСИТЕТА. ФИЗИКА, no. 4 (2023): 69–74. http://dx.doi.org/10.17072/1994-3598-2023-4-69-74.

Full text

Abstract:

The paper presents the results of mathematical modeling, numerical and laboratory experiments aimed at developing an optical method for estimating the size distribution of droplets in a spray. The optical method is based on analyzing the brightness of light reflected by drops of a liquid. The ob-ject of study was a spray of a transparent liquid (distilled water) produced by a centrifugal axisym-metric nozzle. It is known that the intensity (brightness) of light reflected by a drop is proportional to the surface area of the drop, and for spherical drops, accordingly, to the square of the drop’s di-ameter (hereinafter, the terms intensity and brightness are used as synonyms). For a more detailed representation of the patterns of this dependence in the case of a flow of droplets, we considered a mathematical model representing the spray as a flow of spherical particles with parameterization of almost all significant properties: arbitrary distribution of droplets in size and speed as well as changes in these characteristics over time during the movement of drops along the flow. We ob-tained formulas and tested a mathematical model of nozzle spray that takes into account the change in droplet density due to the scattering of droplets in the spray cone and the inhomogeneity of veloc-ity fields. The zone of possible cessation of droplet fission was determined.

APA, Harvard, Vancouver, ISO, and other styles

Jilani, Aisyah, and Akhtar Razali. "Centrifugal Pump Performance Characteristics for Domestic Application." MATEC Web of Conferences 225 (2018): 05011. http://dx.doi.org/10.1051/matecconf/201822505011.

Full text

Abstract:

Water pressure problems at home can be quite frustrating in daily life which is comes in different ways of complication. It may take forever for the faucets to fill a bathtub, or a slow spray shower head and longer time taken for the washing machine to run a cycle. The problem can be fixed by installing a pressure booster pump. This research is embarked to study on a centrifugal pump performance with a view to analyse pressure built-up and flowrate in pipe at fixed speed. A simple and inexpensive test rig is developed to resemble water distribution for domestic use; i.e. house application. The method is then experimentally validated to measured and analysed the pump performance such as water pressure, water flowrate, power of pump and pump speed. Since the centrifugal pump are added, the pump is able to boost the water flowrate. However, since the centrifugal pump work at constant speed, the water pressure in pipe is high when the water demand is low. The maximum pressure inside the pipe was 28.24 psi which quite high and exceed the piping standards. Power consumption also remained constant approximately 0.500 kWh when water demand was low which led to energy wastage.

APA, Harvard, Vancouver, ISO, and other styles

Cavalieri, Jhonatan D., Carlos G. Raetano, Ronaldo P. Madureira, and Lais L. Q. Moreira. "Spraying systems and traveling speed in the deposit and spectrum of droplets in cotton plant." Engenharia Agrícola 35, no. 6 (2015): 1042–52. http://dx.doi.org/10.1590/1809-4430-eng.agric.v35n6p1042-1052/2015.

Full text

Abstract:

ABSTRACT Tractor traveling speed can influence the quality of spraying depending on the application technology used. This study aimed to evaluate the droplet spectrum, the deposition and uniformity of spray distribution with different spraying systems and traveling speeds of a self-propelled sprayer in two phenological stages of the cotton plant (B9 and F13). The experimental design was randomized blocks and treatments were three spraying techniques: common flat spray tips; tilted flat jet with air induction, at 120 L ha-1; and rotary atomizer disk, 20 L ha-1, combined with four traveling speeds: 12, 15, 18 and 25 km h-1, with four replications. Spraying deposition was evaluated for both leaf surfaces from the cotton plant apex and base (stage B9) and middle part of the plant (stage F13) with a cupric marker. A laser particle analyzer also assessed the droplet spectrum. The centrifugal power spray system produces more homogeneous droplet spectrum and increased penetration of droplets into the canopy in both phenological stages. Variation on the operating conditions necessary for increased traveling speed negatively influences the pattern of spraying deposits.

APA, Harvard, Vancouver, ISO, and other styles

Zhao, Yahong, Baosong Ma, Samuel T. Ariaratnam, et al. "Structural performance of damaged rigid pipe rehabilitated by centrifugal spray on mortar liner." Tunnelling and Underground Space Technology 116 (October 2021): 104117. http://dx.doi.org/10.1016/j.tust.2021.104117.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Jiao, Yan, Yu-Peng Lu, Gui-Yong Xiao, Wen-Hua Xu, and Rui-Fu Zhu. "Preparation and characterization of hollow hydroxyapatite microspheres by the centrifugal spray drying method." Powder Technology 217 (February 2012): 581–84. http://dx.doi.org/10.1016/j.powtec.2011.11.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

CHEN, Wenzhe, Kaiping PENG, Kuang-Wu QIAN, and Haicheng GU. "Fatigue Crack Growth of Ti-48Al-2Mn-2Nb Intermetallics by Centrifugal Spray Deposition." Journal of Solid Mechanics and Materials Engineering 4, no. 6 (2010): 849–55. http://dx.doi.org/10.1299/jmmp.4.849.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!