The Infra-red Thermography in the Service of Predictive Maintenance Case of the boiler JB50-11 Unit: Power station II, Fertial Company, Annaba, Algeria

2013 ◽  
Vol 1 (2) ◽  
pp. 15-22
Author(s):  
A. Benretem
Keyword(s):  
Predictive Maintenance ◽  
Power Station ◽  
Unit Power ◽  
Infra Red

scholarly journals Predictive maintenance of photovoltaic plants using multirotor drones with automatic recharging system of Li-Po batteries

2020 ◽  
Vol 180 ◽  
pp. 02007
Author(s):  
Vasile Pleşca ◽  
Cristian Purece
Keyword(s):  
Real Time ◽  
Predictive Maintenance ◽  
Power Station ◽  
Scanning Process ◽  
Li Po ◽  
Thermal Vision ◽  
Low Costs ◽  
Work Accidents ◽  
Battery Technology ◽  
Photovoltaic Plants

Creating the correct maintenance of the strings that form the electric generators, from a photovoltaic park, it requires scanning of the equipment with thermal vision cameras, in the visible and infrared field, at an optimum angle determined precisely for each location depending on the geographic position and the architecture of the power station. In general, this angle is difficult to maintain from the ground so it is necessary to mount the cameras on a support, or most efficiently on a multi-rotor drone that is very stable and easy to handle. Maintenance using multi-rotor drones and heat sensitive cameras is no longer a novelty and has multiple advantages: low costs, minimization of work accidents, and the data acquired can be analyzed in real time or can be stored for later analysis. But this process also has disadvantages: limited flight autonomy of drones, generated by the hard development of battery technology and a small number of specialized personnel in this field. To minimize these disadvantages, we have developed an automatic recharging system of batteries, without disconnecting them, which allows the automation of the scanning process and offers the possibility of taking control of the drones and from a distance.

Electron Microscopy of Human Gallstones

1971 ◽  
Vol 29 ◽  
pp. 296-297
Author(s):  
C. Wolpers ◽  
R. Blaschke
Keyword(s):  
Electron Microscopy ◽  
Room Temperature ◽  
Bile Pigment ◽  
X Ray Diffraction ◽  
Triclinic Crystal System ◽  
X Ray ◽  
Follow Up Study ◽  
Infra Red ◽  
Main Components

Scanning microscopy was used to study the surface of human gallstones and the surface of fractures. The specimens were obtained by operation, washed with water, dried at room temperature and shadowcasted with carbon and aluminum. Most of the specimens belong to patients from a series of X-ray follow-up study, examined during the last twenty years. So it was possible to evaluate approximately the age of these gallstones and to get information on the intensity of growing and solving.Cholesterol, a group of bile pigment substances and different salts of calcium, are the main components of human gallstones. By X-ray diffraction technique, infra-red spectroscopy and by chemical analysis it was demonstrated that all three components can be found in any gallstone. In the presence of water cholesterol crystallizes in pane-like plates of the triclinic crystal system.

The infra-red spectra of B-chloro- and B-bromoborazoles

1962 ◽  
Vol 18 (4) ◽  
pp. 1487-1497 ◽  
Author(s):  
I BUTCHER ◽  
W GERRARD ◽  
E MOONEY ◽  
R ROTHENBURY ◽  
H WILLIS
Keyword(s):  
Infra Red

The Large Power Station

1918 ◽  
Vol 86 (2229supp) ◽  
pp. 185-185
Keyword(s):  
Power Station ◽  
Large Power

Sootblowing as a key part of power-station efficiency

1990 ◽  
Vol 4 (2) ◽  
pp. 103
Author(s):  
Jim Stevenson
Keyword(s):  
Power Station
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