Article: Model-based temperature measurement technique to quantify the dynamic three-dimensional air freshness flow in the interior of a car Journal: International Journal of Vehicle Design (IJVD) 2004 Vol.34 No.3 pp.218 - 230 Abstract: A data-based mechanistic (DBM) approach was used to model the spatio-temporal temperature distribution in the imperfectly mixed fluid in a car. The first phase of DBM involves the identification of a mathematical model from experimental data. A second order model proves to deliver a sufficiently good description of the temperature dynamics of the system (R² = 0.985). Furthermore, the physical interpretation of this second order model provides a useful variable. The physical meaning of one of the model parameters is what is called the local volumetric concentration of fresh air flow inside the car. It thus becomes possible to quantify the local air freshness in a complex geometric space as the interior of a car, only using simple temperature measurements. This technique could become a valuable tool in evaluating the performance of for instance climate controllers in interior spaces. Inderscience Publishers - linking academia, business and industry through research

Title: Model-based temperature measurement technique to quantify the dynamic three-dimensional air freshness flow in the interior of a car

Authors: S. Quanten, A. Van Brecht, A. Van Hirtum, K. Janssens, J.M. Aerts, D. Berckmans

Addresses: Department of Agro-Engineering and Economics, Laboratory for Agricultural Buildings Research, K.U. Leuven, Kasteelpark Arenberg 30, 3001 Leuven, Belgium. ' Department of Agro-Engineering and Economics, Laboratory for Agricultural Buildings Research, K.U. Leuven, Kasteelpark Arenberg 30, 3001 Leuven, Belgium. ' Department of Agro-Engineering and Economics, Laboratory for Agricultural Buildings Research, K.U. Leuven, Kasteelpark Arenberg 30, 3001 Leuven, Belgium. ' Department of Agro-Engineering and Economics, Laboratory for Agricultural Buildings Research, K.U. Leuven, Kasteelpark Arenberg 30, 3001 Leuven, Belgium. ' Department of Agro-Engineering and Economics, Laboratory for Agricultural Buildings Research, K.U. Leuven, Kasteelpark Arenberg 30, 3001 Leuven, Belgium. ' Department of Agro-Engineering and Economics, Laboratory for Agricultural Buildings Research, K.U. Leuven, Kasteelpark Arenberg 30, 3001 Leuven, Belgium

Abstract: A data-based mechanistic (DBM) approach was used to model the spatio-temporal temperature distribution in the imperfectly mixed fluid in a car. The first phase of DBM involves the identification of a mathematical model from experimental data. A second order model proves to deliver a sufficiently good description of the temperature dynamics of the system (R² = 0.985). Furthermore, the physical interpretation of this second order model provides a useful variable. The physical meaning of one of the model parameters is what is called the local volumetric concentration of fresh air flow inside the car. It thus becomes possible to quantify the local air freshness in a complex geometric space as the interior of a car, only using simple temperature measurements. This technique could become a valuable tool in evaluating the performance of for instance climate controllers in interior spaces.

Keywords: modelling; temperature gradients; thermal comfort; imperfectly mixed fluids; transfer function; traffic safety; air freshness; model-based; car interiors.

DOI: 10.1504/IJVD.2004.003960

International Journal of Vehicle Design, 2004 Vol.34 No.3, pp.218 - 230

Published online: 10 May 2004 *

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Title: Model-based temperature measurement technique to quantify the dynamic three-dimensional air freshness flow in the interior of a car

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