Naslov
Estimation of humid air properties by moving total least squares method

Autori
Tomas, Srećko ; Jukić, Dragan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
7th International conference on operational research / Scitovski, Rudolf - Rovinj : Hrvatsko društvo za operacijska istraživanja (CRORS), 1998

Skup
7th International conference on operational research

Mjesto i datum
Rovinj, Hrvatska, 30.09.1998. - 02.10.1998

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
moving total least squares method; humid air; physical and thermodynamic properties

Sažetak
For the estimation of physical and thermodynamic properties of humid air in the whole nonsaturated region and for the chosen temperature interval it is necessary to know the saturated pressure p(indeks)e of water vapour, specific heat, c(index)p,da of dry air and specific heat c(index)p,wu of water vapour at constant pressure in dependence of temperature. Since these dependencies are not known explicity, on the basis of experimental data they can be interpolated or approximating the unknown functions. In this paper we sugest a method for approximating the unknown functions p(index)e, c(index)p,da, c(index)p,wu. Our approach is based on smoothing the data by using the moving total least squares method. In this way it is taken into consideration that errors can occur in all data coordinates. The method is illustrated on several examples.

Izvorni jezik
Engleski

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