scholarly journals Integration of a non-immersion ultrasonic cleaning system in a solar concentrating field

2019 ◽  
Author(s):  
Jon Ander Sarasua ◽  
Alejandro Sandá ◽  
David Arguelles-Arizcun ◽  
Aránzazu Fernández-García
Keyword(s):  
Ultrasonic Cleaning ◽  
Cleaning System

scholarly journals Infra-Through Ultrasonic Piezoelectric Acoustic Vector Sensor Particle Rejection System

2012 ◽  
Vol 2012 ◽  
pp. 1-6
Author(s):  
Scott E. Cravens ◽  
Ronald M. Barrett
Keyword(s):  
Middle Eastern ◽  
Charge Accumulation ◽  
Design Development ◽  
Hot Wire ◽  
Ultrasonic Cleaning ◽  
Particulate Fouling ◽  
Desert Sand ◽  
Cleaning System ◽  
At Resonance ◽  
Vector Sensor

Sensor elements which employ fine filaments are often vulnerable to particulate fouling when used in certain operational field conditions. Depending on the size, attraction level, thermal and electrical conduction, and charge accumulation properties of the particles, erroneous readings can be easily generated in such “dirty” environments. This paper describes the design, development, and testing of an ultrasonic system which dynamically rejects highly tenacious electrostatically charged particles of a wide variety of sizes and even water. The paper starts with a brief introduction to the field of acoustic vector sensing, outlining its outstanding characteristics and history. Operational challenges including a statistical analysis of typical Middle-Eastern wind-blown desert sand and charge density are laid out. Several representative subscale hot-wire filaments were fouled with calibrated dust representing desert sand. The fouled elements were then exposed to airflows of 13 ft/s (4 m/s) and showed highly erratic shifted conduction levels with respect to baseline (clean) levels. An ultrasonic cleaning system was designed specifically resonate the filament and cantilever so as to mechanically reject foulants. When operated at resonance, the ultrasonic cleaning system showed 98.6% particulate rejection levels and associated restoration of uncorrupted filament resistance levels to within 2% of baseline resistance measurements.

scholarly journals Antimicrobial potential of ozone in an ultrasonic cleaning system against Staphylococcus aureus

2006 ◽  
Vol 17 (2) ◽  
pp. 134-138 ◽  
Author(s):  
Carlos Estrela ◽  
Cyntia R.A. Estrela ◽  
Daniel de Almeida Decurcio ◽  
Julio Almeida Silva ◽  
Lili Luschke Bammann
Keyword(s):  
Staphylococcus Aureus ◽  
Bacterial Growth ◽  
Culture Medium ◽  
Distilled Water ◽  
Ultrasonic Cleaning ◽  
Antimicrobial Potential ◽  
Cleaning System ◽  
Colony Forming Units ◽  
A Current ◽  
Made In

The aim of this study was to evaluate the antimicrobial potential of ozone applied to 3 different solutions in an ultrasonic cleaning system against Staphylococcus aureus. A total of 120 mL of S. aureus were mixed in 6 L of the experimental solutions (sterilie distilled water, vinegar and sterile distilled water + Endozime AWpluz) used in a ultrasonic cleaning system (UCS). Ozone was produced by an electric discharge through a current of oxygen and bubbling with flow rate at 7g/h ozone (1.2%) into the microbial suspensions. Ten mL of each experimental suspension were collected and 5 fold dilutions were made in 9 mL of BHI and incubated at 37°C for 48 h. Bacterial growth was evaluated by turbidity of the culture medium. At the same time, 1 mL of bacterial samples was collected and inoculated in BHIA plates. After incubation at 37°C for 48 h, the number of colony forming units (cfu) per mL on BHIA surface was counted. In dilution test in BHI tubes and in BHIA plates (cfu/mL), bacterial growth was not observed in any of the experimental solutions when ozone was added. Under the tested conditions, it may be concluded that the addition of ozone to a ultrasonic cleaning system containing different experimental solutions resulted in antibacterial activity against S. aureus.

scholarly journals Large-scale ultrasonic cleaning system: Design of a multi-transducer device for boat cleaning (20 kHz)

2011 ◽  
Vol 18 (4) ◽  
pp. 895-900 ◽  
Author(s):  
G. Mazue ◽  
R. Viennet ◽  
J-Y. Hihn ◽  
L. Carpentier ◽  
P. Devidal ◽  
...  
Keyword(s):  
System Design ◽  
Large Scale ◽  
Ultrasonic Cleaning ◽  
Cleaning System
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