Mechanics of dust removal from rotating disk in relation to self-cleaning applications of PV protective cover

Solar Energy ◽  
2016 ◽  
Vol 130 ◽  
pp. 193-206 ◽  
Author(s):  
Aditia Rifai ◽  
Numan Abu Dheir ◽  
Bekir S. Yilbas ◽  
Mazen Khaled
Keyword(s):  
Rotating Disk ◽  
Dust Removal ◽  
Protective Cover ◽  
Self Cleaning

scholarly journals Droplet fluid infusion into a dust layer in relation to self-cleaning

RSC Advances ◽  
2020 ◽  
Vol 10 (53) ◽  
pp. 32034-32042
Author(s):  
Ghassan Hassan ◽  
Bekir Sami Yilbas ◽  
Hussain Al-Qahtani
Keyword(s):  
Dust Removal ◽  
Hydrophobic Surfaces ◽  
Dust Layer ◽  
Fluid Infusion ◽  
Self Cleaning ◽  
Droplet Liquid

Wettability of a droplet liquid on a dusty hydrophobic plate is considered and the fluid infusion into the dust layer is studied pertinent to dust removal from the hydrophobic surfaces via rolling/sliding droplets.

Simulation of dust-air flow near a rotating disk cylinder suction unit

2019 ◽  
pp. 70-74
Author(s):  
A. B. Goltsov ◽  
K. I. Logachev ◽  
O. A. Averkova ◽  
V. A. Tkachenko
Keyword(s):  
Computer Model ◽  
Lateral Surface ◽  
Cylindrical Surface ◽  
Air Flow ◽  
Rotating Disk ◽  
Rotating Cylinder ◽  
Dust Removal ◽  
Dust Particles ◽  
Operating Parameters

A dust-air flow near a vertically located rotating cylinder with a suction unit located on the lateral surface was investigated. A computer model of this suction unit was developed, the effect of disks mounted on a cylindrical surface on the intake air flow and on the capture of dust particles in the suction unit, as well as the design and operating parameters of the proposed disk cylindrical suction (DCC), which reduce the dust loss. The influence of the size and number of discs, aspiration air flow on dust removal has been established. This design of a rotating disk cylinder suction unit can be used in aspiration shelters with the function of a dust-collecting chamber. Ill. 6. Ref. 15.

Development of Self-Cleaning Solar Collectors for Minimizing Energy Yield Loss Caused by Dust Deposition

2013 ◽  
Author(s):  
Malay Mazumder ◽  
Mark Horenstein ◽  
Jeremy Stark ◽  
Daniel Erickson ◽  
Arash Sayyah ◽  
...  
Keyword(s):  
Large Scale ◽  
Yield Loss ◽  
Research Effort ◽  
Large Fraction ◽  
Dust Removal ◽  
Energy Yield ◽  
Solar Collectors ◽  
Dust Deposition ◽  
Prototype Development ◽  
Self Cleaning

Concentrated Solar Power (CSP) systems used for photothermal conversion of solar energy to electricity are capable of meeting a large fraction of the global energy requirements. CSP plants are inherently robust with respect to the availability of materials, technology, and energy storage. However, dust depositions on solar collectors cause energy yield loss annually, ranging from 10 to 50% depending upon their location in the semi-arid and desert lands. Mitigation of energy loss requires manual cleaning of solar mirrors with water. A brief review of the soiling related losses in energy yield of the CSP plants is presented, which shows that cleaning of the CSP mirrors and receivers using water and detergent is an expensive and time-consuming process at best and is often impractical for large-scale installations where water is scarce. We report here our research effort in developing an electrodynamic dust removal technology that can be used for keeping the solar collectors clean continuously without requiring water and manual labor. Transparent electrodynamic screens (EDS), consisting of rows of transparent parallel electrodes embedded within a transparent dielectric film can be integrated on the front surface of the mirrors and on the receivers for dust removal for their application as self-cleaning solar collectors. When the electrodes are activated, over 90% of the deposited dust is removed. A summary of the current state of prototype development and evaluation of EDS integrated solar mirrors and experimental data on the removal of desert dust samples are presented. A brief analysis of cost-to-benefit ratio of EDS implementation for automated dust removal from large-scale solar collectors is included.

A Sectional Model for Investigating Microcontamination in a Rotating Disk CVD Reactor

2004 ◽  
Vol 38 (12) ◽  
pp. 1161-1170 ◽  
Author(s):  
Z. Sun ◽  
R. L. Axelbaum ◽  
R. W. Davis
Keyword(s):  
Rotating Disk ◽  
Sectional Model

Effect of structure of porous materials on their self-cleaning from a liquid pha

2018 ◽  
Vol 4 (4) ◽  
pp. 52-63
Author(s):  
V. Yu. Shumskaya ◽  
S. F. Zhandarov ◽  
L. A. Kalinin ◽  
L. F. Ivanov ◽  
V. V. Snezhkov ◽  
...  
Keyword(s):  
Porous Materials ◽  
Self Cleaning ◽  
Effect Of Structure

Fabrication and Characterization of Nife Thin Film Composition Modulated Alloys

1996 ◽  
Vol 451 ◽  
Author(s):  
S. D. Leith ◽  
D. T. Schwartz
Keyword(s):  
Rotation Rate ◽  
Stripping Voltammetry ◽  
Rotating Disk ◽  
Oscillation Period ◽  
Rotating Disk Electrode ◽  
Disk Rotation ◽  
Rate Oscillation ◽  
Composition And Structure ◽  
Spatially Periodic

ABSTRACTDescribed are results showing that an oscillating flow-field can induce spatially periodic composition variations in electrodeposited NiFe films. Flow-induced NiFe composition modulated alloys (CMA's) were deposited on the disk of a rotating disk electrode by oscillating the disk rotation rate during galvanostatic plating. Deposit composition and structure were investigated using potentiostatic stripping voltammetry and scanning probe microscopy. Results illustrate a linear relationship between the composition modulation wavelength and the flow oscillation period. CMA's with wavelengths less than 10 nm can be fabricated when plating with a disk rotation rate oscillation period less than 3 seconds.

DESIGN, MANUFACTURING AND EXPERIMENTAL TESTING OF A SELF-CLEANING EXIT PORT MECHANISM FOR A SOLAR REACTOR

2019 ◽  
Author(s):  
Joppe Rutten ◽  
Jens Verschoren ◽  
Nesrin Ozalp ◽  
Cédric Ophoff ◽  
David Moens
Keyword(s):  
Experimental Testing ◽  
Solar Reactor ◽  
Exit Port ◽  
Self Cleaning
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