Abstract
The effect of the type of energy supply on the formation of temperature and concentration fields in the thermal processing of polymer compositions is considered.
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Abbreviations
- T0, T:
-
initial and current temperature of the coating
- Tm :
-
temperature of the air
- Θ=(T-To)/(Tm-T0):
-
dimensionless temperature of the coating
- a:
-
thermal diffusivity
- A:
-
absorption power of the coating
- D:
-
diffusion coefficient
- λ:
-
thermal conductivity
- c:
-
thermal capacity
- γ:
-
density
- αk :
-
convective heat transfer coefficient
- i:
-
number of moles of reacting groups per unit volume of polymer
- K0 :
-
factor in front of the exponential
- R:
-
gas constant
- u:
-
concentration
- Q:
-
thermal effect of the reaction
- qn :
-
density of the incident radiant flux
- ξ=x/δ:
-
dimensionless coordinate over the thickness of the coating
- Kiι=Aqn δ/λ(Tm-T0):
-
Kirpichev criterion characterizing the thermal effect of the reaction
- Kip=Qi/cγ (Tm-T0):
-
analog of the Predvoditelev criterion, characterizing the rate of occurrence of a chemical excess in the system
- Bu=βδ :
-
Bouguer criterion
- Lu=D/a:
-
Lykov number
- Fo=aτ/δ2 :
-
Fourier number
- Bi=α λkδ :
-
Biot number
Literature cited
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 39, No. 1, pp. 26–33, July, 1980.
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Slobodkin, L.S., Pshenichnaya, G.P. & Barskaya, M.N. Relationship between the energy supply parameters and the physicochemical l characteristics of polymer compositions during drying and thermal processing. Journal of Engineering Physics 39, 732–737 (1980). https://doi.org/10.1007/BF00821824
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DOI: https://doi.org/10.1007/BF00821824