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CALCULATION METHODS FOR PRODUCTS OF COMBUSTION OF
CHEMICAL FUEL THERMOPHYSICAL PROPERTIES
O. В. Barysheva
Kazan State Architecturе-Buildind University,
Russia, 420043, Kazan, Green str., 1, [email protected]
Created and developed algorithms and programs of calculation of private derivatives
of composition on a temperature, necessary for the calculation of heat conductivity and
heat capacity of products of combustion. At consideration of physical and chemical
processes of burning, flowings in a combustion chamber power station it is necessary to
take into account the transfer of heat because of dissociation of matters is underlines
actuality of work. Introduction to the calculation formulas of private derivatives of
composition on a temperature [1] is produced the account of warmth of chemical
reactions.
Two variants of calculation of private derivatives are offered a calculation is
produced without attachment to concrete power station: 1. local thermodynamics
equilibrium is examined; 2. private derivatives of composition on a temperature are
from the system of equalizations of dissociation and equality the zero of general stream
of matters both in the free and in dependent state. Advantage of such approach is in the
following. If for the calculation of constituent of coefficient of heat conductivity to
apply private derivatives, found from the system of equalizations of chemical
equilibrium, on occasion there is possibility of receipt of result, not having physical
explanation, that subzero value of constituent of coefficient of heat conductivity, taking
into account the transfer of heat.
Thus, the change of composition on a temperature is described the different values
of private derivatives and it have influence on end-point resoult: thermodynamics and
thermophysical properties. To the questions of influence of methods of calculation on
thermodynamics and thermophysical parameters, to determination of scopes of
applicability of different methods of calculation, near the calculation of major
parameters the conducted researches are devoted application of the alternative going.
LITERATURE
1. Thermodynamics and thermophysical properties of products of combustion.
/Reference book in vol.1-10 under a release V.P. Glushko. M.: Academy of Sciences of
USSR – VINITI. 1971 – 1980