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Detalhes Referência

Tipo
Artigos em Revista

Tipo de Documento
Artigo Completo

Título
New portable instrument for the measurement of thermal conductivity in gas process conditions

Participantes na publicação
C. S. G. P. Queirós (Author)
Dep. Química e Bioquímica
 CQE
 M. J. V. Lourenço (Author)
Dep. Química e Bioquímica
 CQE
 S. I. Vieira (Author)
Dep. Química e Bioquímica
 J. M. Serra (Author)
Dep. Engenharia Geográfica, Geofísica e Energia
 IDL
 CQE
 C. A. Nieto de Castro (Author)
Dep. Química e Bioquímica
 CQE
Resumo
The development of high temperature gas sensors for the monitoring and determination of thermophysical properties of complex process mixtures at high temperatures faces several problems, related with the materials compatibility, active sensing parts sensitivity and life-time. Ceramic/thin metal films based sensors, previously developed for the determination of thermal conductivity of molten materials up to 1200 °C, were redesigned, constructed and applied for thermal conductivity measuring sensors. Platinum resistance thermometers were also developed using the same technology, to be used in the temperature measurement, were also constructed and tested. A new data acquisition system for the thermal conductivity sensors, based on a linearization of the transient hot-strip model, including a portable electronic bridge for the measurement of the thermal conductivity in gas process conditions was also developed. The equipment is capable of measuring the thermal conductivity of gaseous phases with an accuracy of 2-5% up to 840 ºC, (95% confidence level). The development of sensors up to 1200 °C, present at the core of the combustion chambers, will be done in a near future.

Data de Publicação
2016-06-00

Instituição
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA

Suporte
Review of Scientific Instruments

Identificadores da Publicação
ISSN - 0034-6748
eISSN - 1089-7623

Editora
AIP Publishing

Volume
87
Fascículo
6

Página Inicial
065105

Identificadores do Documento
DOI - https://doi.org/10.1063/1.4952745
URL - http://dx.doi.org/10.1063/1.4952745

Identificadores de Qualidade
SCOPUS Q2 (2016) - 0.703 - Instrumentation
Web Of Science Q3 (2017) - 1.428 - PHYSICS, APPLIED - SCIE
SCIMAGO Q1 (2016) - 0.703 - Instrumentation

Keywords
High temperatures Gas processing Thermal conductivity Thin film sensor


Exportar referência

APA
C. S. G. P. Queirós, M. J. V. Lourenço, S. I. Vieira, J. M. Serra, C. A. Nieto de Castro, (2016). New portable instrument for the measurement of thermal conductivity in gas process conditions. Review of Scientific Instruments, 87, ISSN 0034-6748. eISSN 1089-7623. http://dx.doi.org/10.1063/1.4952745

IEEE
C. S. G. P. Queirós, M. J. V. Lourenço, S. I. Vieira, J. M. Serra, C. A. Nieto de Castro, "New portable instrument for the measurement of thermal conductivity in gas process conditions" in Review of Scientific Instruments, vol. 87, 2016. 10.1063/1.4952745

BIBTEX
@article{38642, author = {C. S. G. P. Queirós and M. J. V. Lourenço and S. I. Vieira and J. M. Serra and C. A. Nieto de Castro}, title = {New portable instrument for the measurement of thermal conductivity in gas process conditions}, journal = {Review of Scientific Instruments}, year = 2016, volume = 87 }