<b>Time constants determination and analysis for a ring-shaped temperature sensor in fixed bed</b> - DOI: 10.4025/actascitechnol.v25i1.2225

Authors

  • Luiz Mario de Matos Jorge Engenharia Quí­mica - UEM
  • Gustavo Piras de Oliveira Escola Politécnica da Universidade de São Paulo
  • Regina Maria Matos Jorge UFP
  • Reinaldo Giudici Escola Politécnica da Universidade de São Paulo

DOI:

https://doi.org/10.4025/actascitechnol.v25i1.2225

Keywords:

3.00.00.00-9 Engenharias

Abstract

A theoretical and experimental methodology was developed and made possible to evaluate and analyse the time constants of five thermocouples of a ring-shaped sensor installed in a fixed bed. In this sense, step disturbances were applied to the temperature of the air that flows across the sensor and the step responses were registered by periodic measures of temperature until the sensor reached steadystate. The time constants were evaluated by linear regressions of the sensor mathematical model. Both the mathematical model and the technique used for the adjustment of the time constants were satisfactory. Each thermocouple from the ring-shaped sensor has presented distinct time constants. The external ring-shaped thermocouple, r = 0,027m, and the central thermocouple, r = 0m, has presented the higher and the lower value of time constant, respectively, independent of the volumetric gas flow.

Downloads

Download data is not yet available.

Author Biography

Luiz Mario de Matos Jorge, Engenharia Quí­mica - UEM

Possui mestrado em Engenharia Quí­mica pela Universidade de São Paulo (1992) e doutorado em Engenharia Quí­mica pela Universidade de São Paulo (1998) . Atualmente é PROFESSOR ASSOCIADO da Universidade Estadual de Maringá. Tem experiência na área de Engenharia Quí­mica , com ênfase em Processos Industriais de Engenharia Quí­mica. Atuando principalmente nos seguintes temas: REFORMA A VAPOR DE METANO, REATOR DE LEITO FIXO, TRANSFERENCIA DE CALOR.

Downloads

Published

2008-04-15

How to Cite

Jorge, L. M. de M., Oliveira, G. P. de, Jorge, R. M. M., & Giudici, R. (2008). <b>Time constants determination and analysis for a ring-shaped temperature sensor in fixed bed</b> - DOI: 10.4025/actascitechnol.v25i1.2225. Acta Scientiarum. Technology, 25(1), 9–15. https://doi.org/10.4025/actascitechnol.v25i1.2225

Issue

Vol. 25 No. 1 (2003)

Section

Chemical Engineering

License

DECLARATION OF ORIGINALITY AND COPYRIGHTS

I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. 

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

Read this link for further information on how to use CC BY 4.0 properly.

 

Crossref
Scopus
Google Scholar
Europe PMC

Most read articles by the same author(s)

1 2 > >>