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Naslov: Calculation of thermophysical and thermochemical properties during hydrocarbon combustion ID Avsec, Jurij (Avtor)ID Zgaga, Franc (Avtor)ID Marčič, Milan (Avtor) http://www.hthpweb.com/php/onlineaccess.phtml?jrnid=ht&page=paper&paperid=844&year=2002&issue=5&fpage=569&lpage=583 Angleški jezik Neznano 1.01 - Izvirni znanstveni članek FS - Fakulteta za strojništvo A mathematical model is presented for computing the chemical and thermophysical properties in the process of combustion of natural gas. To identify the parameters of state of combustion products, their composition hasto be known, which may be determined from chemical equilibrium. The computation is performed with the use of chemical potentials and statistical thermodynamics, featuring all important molecular contributions (translation, rotation, vibration, and intermolecular potential energy). A thermal equation of state with two virial terms is used. The real gas mixture is treated as consisting of four components: carbon dioxide, nitrogen, carbon monoxide, and water. Virial coefficients are dependent on temperature and mole fractions of the real components. Mixed terms are taken into account. The caloric equation of state is based on statistical thermodynamics for an ideal gas. Corrections are made in accordance with the second law of thermodynamics and the thermal equation of state. As the whole computation is based on matrix algebra, increasing the number of components presents no problems. We tested our model in the high-pressure region (100 bar) and the low-pressure region (1 bar), in the temperature range 500 - 6000°K. Our model is compared with other analytical models presented in the literature and shows relatively good agreement. At the same time we tested the influence of real conditions on the chemical and thermophysical properties of combustion products. statistical thermodynamics, thermodynamical properties, combustion of natural gas, mathematical models, thermodynamic functions of state, equation of state, virial coefficients 2002 20.500.12556/DKUM-27893 536.75:66 7840790 0018-1544 URN:SI:UM:DK:LQHBENWB 01.06.2012 2145 119 Ostalo Kopiraj citat

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Naslov: High Temperatures. High Pressures High temp. High press. Pion Limited 0018-1544 25557504

## Sekundarni jezik

Jezik: Angleški jezik statistična termodinamika, termofizikalne lastnosti, zgorevanje zemeljskega plina, matematični modeli, termodinamične lastnosti stanja, enačba stanja, virialni koeficienti

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