Solar panel installation requirements for optimum system performance

2009 ◽  
Author(s):  
A. R. Jha
2019 ◽  
Vol 273 ◽  
pp. 01009
Author(s):  
Mart De Vré ◽  
Delia A. Richardson

Compliance with standards is assessed through internal and external audits, the findings of which are viewed as imperfections to be quickly repaired. A zero-findings mentality underlies companies that want to excel before the eyes of the authorities, customers, insurance companies and competitors. However, scholars and professionals over the last decades agree that compliance is a necessary but not sufficient condition for optimum system performance. The current study was initiated by a Ground Service Provider that in 2017 underwent an IATA Safety Audit for Ground Operations and revealed several findings, especially in the documentation, such as missing parts, non-compliant material and lack of detail. Their goal was to pass the next audit without any findings within the documented procedures of six operational departments. To assess the audit documentation criteria, the researchers visited the operational departments, analysed 186 procedures, and conducted six semi-structured interviews with managers/supervisors and nine interviews with operational personnel. The analysis showed that all documents were properly controlled, but four departments had duplicated generic guidance material from 6% to 83% of the text checked. The interviewees claimed that understandability was not optimum due to language barriers and the non-tailoring of the content to their needs, leading to some staff disregarding manuals and consulting their supervisor instead. Other remarks included the long length of the documents, lack of knowledge of how to access online material, ignorance of the existence of documentation access points, and low technical accuracy. Overall, the results suggested room for improvement. Most importantly, through this research, the specific Ground Service Provider gained a better understanding behind non-compliance and had the opportunity to improve the quality and communication of its procedures. This study showed that even when compliance is the target, substantial improvement moves beyond box-ticking and engages employees in the revelation and mitigation of system imperfections.


Author(s):  
M J Goodwin ◽  
C J Hooke ◽  
J E T Penny

This paper describes a theoretical and experimental investigation of the dynamic characteristics of a capillary-compensated oil-lubricated hydrostatic bearing which has an accumulator connected to the bearing pocket via a second capillary restrictor. Results show that by careful selection of accumulator and restrictor the bearing can be tuned to give an optimum system performance. Such a facility can be of considerable use if the hydrostatic bearing is being used to support other machinery, for example in the support of journal bearings used with flexible rotors. By tuning the hydrostatic bearing dynamic characteristics, optimum rotor support impedance might be achieved thereby giving the engineer some control over system resonances and stability.


Solar photovoltaic panel tends to lose its performance, when foreign particles start accumulating over it. To get panel at its best, frequent cleaning action is required by some means. It would be beyond imagination, if there comes a task to clean entire solar farm covering miles squares and more, hence a better solution is required. Solar photovoltaic panel cleaning system is a robotic system designed to clean solar panel surface; in order to sustain the efficiency. To avoid frequent site visits, robots can be placed in each array, and by further deploying Internet of Things (IoTs), distant monitoring and cleaning can be achieved. The command for the robots can be given by distant operator through the cloud they are connected with. To make this system even smarter, a separate sensing unit shall be installed along with different sensors that can detect the limit of dust deposition and shall automatically order to perform cleaning action. This study presents the need of cleaning system, which is followed by design and fabrication of robot that meets the design specification and required performance. A month-long data is collected and analyzed to formulate and validate the automatic cleaning algorithm in real environment. From this study, it is concluded that, the IoT can be implemented in the solar PV cleaning system which can improve the system performance significantly.


1960 ◽  
Author(s):  
S. Seidenstein ◽  
R. Chernikoff ◽  
F. V. Taylor

Author(s):  
Christopher Wickens ◽  
Jack Isreal ◽  
Gregory McCarthy ◽  
Daniel Gopher ◽  
Emanuel Donchin

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