Mathematical modelling of porous silicon based pellistor-type catalytic flammable gas sensors

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Kolev, S.D. and Adam, M. and Barsony, I. and Berg van den, A. and Cobianu, C. (1998) Mathematical modelling of porous silicon based pellistor-type catalytic flammable gas sensors. Microelectronics Journal, 29 (4-5). pp. 235-239. ISSN 0026-2692

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Abstract:The development of a three-dimensional thermal mathematical model of a pellistor based on the fundamental physical laws of heat transfer and employing a few clearly stated simplifying assumptions concerning the convective heat transfer in ambient air is reported. The model was numerically solved using the implicit alternating-direction finite difference method. The software was written in Microsoft and Gnu C and run on a PC. Simulations for studying the transient heat transfer in the absence of flammable gas were performed. Refinement of the model in terms of reducing the simplifying assumptions and the experimental verification of the simulated thermal behaviour of the model structure is in progress. In its final form the model should be capable of describing more sophisticated micro-pellistor structures.

Item Type:Article
Copyright:© 1998 Elsevier
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/14550
Official URL:http://dx.doi.org/10.1016/S0026-2692(97)00063-3
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