<b>Modeling and development of an eletrical air heater simulator</b> - DOI: 10.4025/actascitechnol.v26i1.1549

Authors

  • Mônica Ronobo Coutinho UNICENTRO
  • Edilson Sadayuki Omoto UEM
  • Ubyratan Gobbi Oliveira UEM
  • Cid Marcos Gonçalves Andrade UEM
  • Luiz Mario de Matos Jorge Engenharia Quí­mica - UEM

DOI:

https://doi.org/10.4025/actascitechnol.v26i1.1549

Keywords:

aquecedor elétrico, modelagem, simulador, convecção natural

Abstract

A mathematical model was developed which correlates the voltage (V) applied to the electric heater in function of the flow rate ( ), the air temperature at the entrance (Te) and the desired air temperature at the exit (Ts) from an energy balance in the heater, taking into account possible heat dissipations due to natural convection. The model has two parameters: the electric resistance (R) and the heat transfer coefficient for natural convection (h). From this model, a user-friendly simulator was developed that contemplates two distinct situations: significant heat dissipations trough the wall of the heater (complete model, h ≠ 0) and insignificant ones (simplified model, h = 0). It was verified that the complete model represented heater behavior in the range of operational conditions experimented without any parameters adjustment, indicating that the heat dissipations by natural convection are significant

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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.

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Published

2008-03-31

How to Cite

Coutinho, M. R., Omoto, E. S., Oliveira, U. G., Andrade, C. M. G., & Jorge, L. M. de M. (2008). <b>Modeling and development of an eletrical air heater simulator</b> - DOI: 10.4025/actascitechnol.v26i1.1549. Acta Scientiarum. Technology, 26(1), 33–37. https://doi.org/10.4025/actascitechnol.v26i1.1549

Issue

Vol. 26 No. 1 (2004)

Section

Chemical Engineering

License

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