RT Journal Article
T1 Study of parameters influence on the measurement of vacuum level in parabolic trough collectors’ receivers using infrared thermography
A1 Carra, María Elena
A1 Setién, Eneko
A1 Valenzuela, Loreto
A1 López-Martín, Rafael
A1 Amador, Carmen
A1 Caron, Simon
A1 Ballestrín, Jesús
A1 Fernández-Reche, Jesús
A1 Carballo, José A.
A1 Ávila-Marín, Antonio
AB The receiver tube of the parabolic trough collectors may suffer a degradation of the vacuum atmosphere between the glass envelope and the absorber tube due to the permeation of gases, mainly hydrogen or air. This is one of the most common issues of heat loss increase in solar fields with this type of solar collectors. The Surface Temperature Method has been used to determine the complete and partial vacuum loss in the annulus of receiver tubes, by measuring the temperature of the glass envelope. In this work, the influences of the meteorological variables and the source distance on the measurement of the temperature by infrared thermography are analysed, as well as the feasibility of using the reflector of the collector itself to measure the sky temperature, parameter necessary to correctly measure the temperature by means of an infrared sensor.
SN 1350-4495
YR 2023
FD 2023-06
LK https://hdl.handle.net/11556/4096
UL https://hdl.handle.net/11556/4096
LA eng
NO Carra , M E , Setién , E , Valenzuela , L , López-Martín , R , Amador , C , Caron , S , Ballestrín , J , Fernández-Reche , J , Carballo , J A & Ávila-Marín , A 2023 , ' Study of parameters influence on the measurement of vacuum level in parabolic trough collectors’ receivers using infrared thermography ' , Infrared Physics and Technology , vol. 131 , 104657 . https://doi.org/10.1016/j.infrared.2023.104657
NO Publisher Copyright: © 2023 The Author(s)
NO We gratefully acknowledge the financial support by the European Union's Horizon 2020 research and innovation programme (Project SFERA-III – Grant Nr. 823802).
DS TECNALIA Publications
RD 31 jul 2024