Characterization of the Performance of a Novel Low-Cost, Low-Power Narrow-Band Oxygen Sensor for Small Engine Applications Using a Propane Burner Test Stand (2 of 3)

2014 ◽  
Author(s):  
Ken Fosaaen
Keyword(s):  
Low Power ◽  
Oxygen Sensor ◽  
Narrow Band ◽  
Low Cost ◽  
Test Stand

scholarly journals Characterization of electric faults in photovoltaic array systems

DYNA ◽  
2019 ◽  
Vol 86 (211) ◽  
pp. 54-63
Author(s):  
Andres Eduardo Nieto Vallejo ◽  
Fredy Ruiz ◽  
Diego Patiño
Keyword(s):  
Solar Radiation ◽  
Low Power ◽  
Low Cost ◽  
Open Circuit ◽  
Equivalent Circuits ◽  
Pv Systems ◽  
Photovoltaic Array

Electric faults in photovoltaic (PV) systems cause negative economic and safety impacts, reducing their performance and causing unwanted electric connections that can be dangerous for the user. Line to line, ground and open circuit faults, are three of the main faults that happen in a photovoltaic array system. This work proposes a characterization of the equivalent circuits and the voltage-power (VP) curves at the output of multiple PV arrays under different topological configurations and fault conditions to evaluate the effects of these three main faults on the performance of a photovoltaic array system, taking into account the temperature and solar radiation influence. This work presents a validation of the characterization by measuring the output VP curves of a low-power photovoltaic array system under real outdoors conditions. This method can be useful in future works to develop low cost systems capable of detecting and classifying electric faults in photovoltaic array systems.

Preliminary design and characterization of a low-cost and low-power visible light positioning system

2019 ◽  
Vol 58 (26) ◽  
pp. 7181
Author(s):  
Jordan Lui ◽  
Anna Maria Vegni ◽  
Lorenzo Colace ◽  
Alessandro Neri ◽  
Carlo Menon
Keyword(s):  
Low Power ◽  
Visible Light ◽  
Low Cost ◽  
Positioning System ◽  
Preliminary Design

scholarly journals Microstructure and Thermoelectric Properties of (Bi0.48Sb1.52)Te3 Thick Films Prepared with Tape Casting Method

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 140
Author(s):  
Lichen Liu ◽  
Ziping Cao ◽  
Min Chen ◽  
Jun Jiang
Keyword(s):  
Thermoelectric Properties ◽  
Low Cost ◽  
Thick Films ◽  
Tape Casting ◽  
Casting Process ◽  
Casting Method ◽  
Glass Substrates ◽  
Conductive Films ◽  
Casting Technology

This paper reports the fabrication and characterization of (Bi0.48Sb1.52)Te3 thick films using a tape casting process on glass substrates. A slurry of thermoelectric (Bi0.48Sb1.52)Te3 was developed and cured thick films were annealed in a vacuum chamber at 500–600 °C. The microstructure of these films was analyzed, and the Seebeck coefficient and electric conductivity were tested. It was found that the subsequent annealing process must be carefully designed to achieve good thermoelectric properties of these samples. Conductive films were obtained after annealing and led to acceptable thermoelectric performance. While the properties of these initial materials are not at the level of bulk materials, this work demonstrates that the low-cost tape casting technology is promising for fabricating thermoelectric modules for energy conversion.

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