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2021 | OriginalPaper | Buchkapitel

32. Use of Grey-Box Modeling to Determine the Air Ventilation Flows in a Room

verfasst von : M. Macarulla, M. Casals, N. Forcada, M. Gangolells

Erschienen in: Project Management and Engineering Research

Verlag: Springer International Publishing

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Abstract

To determine the air ventilation flows in a room deterministic approaches based on the CO₂ tracer-gas mass balance equation are usually used. Those equations do not enable to introduce to the system uncertainties such as the sensor measurement error. In this paper, the use of the stochastic differential equations based on the CO₂ tracer-gas mass balance are presented to obtain the air ventilation flows in a room introducing uncertainty elements. This kind of modeling, also known as grey-box modeling, combines physical knowledge of the system and information embedded in the monitored data to identify a suitable parametrization of the differential equation used. Finally, a set of statistical tests are used to assess the model's accuracy. Models that fulfill the tests are considered correct, and as a consequence, its parametrization too. Having the parametrization a physical meaning, it is possible to obtain the air ventilation flow of the room. Results show the viability of this kind of approach.

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Titel: Use of Grey-Box Modeling to Determine the Air Ventilation Flows in a Room
verfasst von: M. Macarulla
M. Casals
N. Forcada
M. Gangolells
Verlag: Springer International Publishing
Buch: Project Management and Engineering Research
Print ISBN: 978-3-030-54409-6

Electronic ISBN: 978-3-030-54410-2

Copyright-Jahr: 2021
DOI: https://doi.org/10.1007/978-3-030-54410-2_32

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