Comparative Study of Droplet-Nuclei with Pathogen and CO2 Distribution in Infectious Isolation Room

In this article, the distributions of droplet nuclei with pathogens which was evaporated from the droplets released by cough was and trace gas CO2 were compared to study the airborne characteristics of droplet nuclei. The infectious isolation room model with steady particle source model was built. The particle source was built according to the size distribution of the droplet nuclei with pathogens which was evaporated from the droplets released by cough. The CO2 source was build at the same location with the particle source and released in the same way. The simulation result showed that the distributions of droplet nuclei and CO2 which were simulated by CFD were similar under the same ward airflow. This proved that these droplet nuclei could suspend in air and move with airflow. it was feasible to use tracer gas CO2 as trace gas to solve the validating the numerical simulation of droplet nuclei distribution in infectious isolation room.

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The comparative study of particle size distribution in magnetic fluids

Czechoslovak Journal of Physics ◽

10.1007/s10582-002-0068-2 ◽

2002 ◽

Vol 52 (S1) ◽

pp. A281-A284 ◽

Cited By ~ 3

Author(s):

M. Timko ◽

P. Kopčanský ◽

M. Koneracká ◽

A. Skumiel ◽

M. Labowski ◽

...

Keyword(s):

Particle Size ◽

Particle Size Distribution ◽

Comparative Study ◽

Size Distribution ◽

Magnetic Fluids ◽

The Comparative Study

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Part IV: Dynamic evolution of the particle size distribution in particulate processes. A comparative study between Monte Carlo and the generalized method of moments

Chemical Engineering Science ◽

10.1016/j.ces.2006.05.001 ◽

2006 ◽

Vol 61 (17) ◽

pp. 5620-5635 ◽

Cited By ~ 13

Author(s):

D. Meimaroglou ◽

A.I. Roussos ◽

C. Kiparissides

Keyword(s):

Particle Size ◽

Monte Carlo ◽

Particle Size Distribution ◽

Comparative Study ◽

Size Distribution ◽

Method Of Moments ◽

Generalized Method Of Moments ◽

Dynamic Evolution ◽

Particulate Processes

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Comparative study of properties of different pesticide formulations of the same active ingredient

Pesticidi i fitomedicina ◽

10.2298/pif0803201g ◽

2008 ◽

Vol 23 (3) ◽

pp. 201-206

Author(s):

Slavica Gasic ◽

Zlatko Oreskovic

Keyword(s):

Particle Size ◽

Particle Size Distribution ◽

Comparative Study ◽

Size Distribution ◽

Active Ingredient ◽

Oil In Water ◽

Pesticide Formulations ◽

Final Estimate ◽

New Formulation ◽

Emulsion Oil

Characteristics of two formulations of trifluralin, an emulsifiable concentrate (EC) and emulsion, oil in water (EW), the latter being a new formulation of our design, were investigated and compared. Attention was focused on particle size distribution and aspects of the two aqueous dilute formulations as the most characteristic and comparable parameters. The results show that the trifluralin EW formulation has certain advantages over the EC formulation, but a final estimate will be possible only after testing biological efficacy of the new formulation (EW).

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Numerical Simulation of a Textured and Untextured Photovoltaic Solar Cell: Comparative study

Algerian Journal of Renewable Energy and Sustainable Development ◽

10.46657/ajresd.2021.3.1.11 ◽

2021 ◽

Vol 03 (01) ◽

pp. 104-114

Author(s):

Karim Salim ◽

◽

M.N Amroun ◽

K Sahraoui ◽

W Azzoui ◽

...

Keyword(s):

Numerical Simulation ◽

Solar Cells ◽

Solar Cell ◽

Comparative Study ◽

Silicon Solar Cell ◽

The Other ◽

Surface Parameters ◽

Cell Efficiency ◽

Photovoltaic Solar Cell ◽

A Cell

Increasing the efficiency of solar cells relies on the surface of the solar cell. In this work, we simulated a textured silicon solar cell. This simulation allowed us to predict the values of the surface parameters such as the angle and depth between the pyramids for an optimal photovoltaic conversion where we found the Icc: 1.783 (A) and Vco: 0.551 (V) with a cell efficiency of about 13.56%. On the other hand, we performed another simulation of a non-textured solar cell to compare our values and found Icc: 1.623 (A) and Vco: 0.556 (V) with an efficiency of about 12.76%.

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A Comparative Study of Numerical Simulation Strategies in Injection Molding

10.23967/wccm-eccomas.2020.005 ◽

2021 ◽

Author(s):

D. Anders ◽

M. Baum ◽

J. Alken

Keyword(s):

Numerical Simulation ◽

Injection Molding ◽

Comparative Study

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Comparative Study of Square and Sine-Wave Excitation Methods for the Measurement of Aerosol Particles Charge and Size Distribution Using Phase Doppler Anemometry

IEEE Transactions on Instrumentation and Measurement ◽

10.1109/tim.2010.2082498 ◽

2011 ◽

Vol 60 (4) ◽

pp. 1397-1407 ◽

Cited By ~ 6

Author(s):

Lu Zhang ◽

Janusz Kulon

Keyword(s):

Comparative Study ◽

Size Distribution ◽

Aerosol Particles ◽

Sine Wave ◽

Wave Excitation ◽

Phase Doppler Anemometry

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Numerical Simulation and Experiment of Atomization Field of Fan-Shaped Atomization Nozzle for Plant Protection UAV

Recent Patents on Mechanical Engineering ◽

10.2174/2212797614666210531103433 ◽

2021 ◽

Vol 14 ◽

Author(s):

Maohua Xiao ◽

Yuanfang Zhao ◽

Zhenmin Sun ◽

Chaohui Liu ◽

Tianpeng Zhang

Keyword(s):

Numerical Simulation ◽

Size Distribution ◽

Droplet Size ◽

Plant Protection ◽

Cone Angle ◽

Droplet Size Distribution ◽

Droplet Velocity ◽

Inlet Pressure ◽

Spray Cone Angle ◽

Spray Cone

Background: There are drift and volatilization of the droplets produced by the plant protection Unmanned Aerial Vehicle (UAV) under the influence of external wind speed and its flight speed. Objective: It studied the atomization characteristics of its fan-shaped atomizing nozzle under different inlet pressures and inner cavity diameters. Methods: For the start, the Realizable k-ε turbulence model, DPM discrete phase model and TAB breakup model are used to make a numerical simulation of the spray process of the nozzle. Then, the SIMPLE algorithm is used to obtain the droplet size distribution diagram of the nozzle atomization field. At last, the related test methods are used to study its atomization performance, and the changes of atomization angle and droplet velocity under different inlet pressures and inner cavity diameters and the distribution of droplet size are discussed. Results: The research results show that under the same inner cavity diameter, as the inlet pressure increases, the spray cone angle of the nozzle and the droplet velocity at the same distance from the nozzle increase. As the distance from the nozzle increases, the droplet velocity decreases gradually, the droplet size distribution moves to the direction of small diameter, and the droplets in the anti-drift droplet size area increase. Under the same inlet pressure, as the diameter of the inner cavity increases, the spray cone angle first increases and then decreases, and the droplet velocity at the same distance from the nozzle increases. As the distance from the nozzle increases, the droplet velocity decreases gradually, the droplet size distribution moves to the direction of large diameter, and the large size droplets increase, which cannot meet the anti-drift volatilization effect. Conclusion: Under the parameter set in this study, when the inlet pressure is 0.6MPa and the inner cavity diameter is 2mm, the atomization result is the best.

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