Abstract
The effect of the scheme for introducing the heat-exchange agent into a furnace for heat exchange in a selective nonisothermal gaseous medium is investigated taking into account the heat loss due to convection depending on the emissivity of the metal and the furnace lining.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Abbreviations
- T:
-
temperature
- Er:
-
specific resulting radiative flux
- qc :
-
convective heat flux density
- qMe :
-
overall density of the resulting heat flux to the metal
- ɛ:
-
emissivity
- ag0 :
-
absorbing capability of the gas relative to the radiation of the lining
- ag4 :
-
same for the metal
- a go /a+b+c:
-
absorbing ability of a layer of gas a+b+c... relative to the radiation of the lining
- agj/ikmnp:
-
absorbing ability of the gas layer i+k + m + n + p with radiation from layer j
- A:
-
emissivity of the walls
- l ef :
-
effective length of a ray path
- α :
-
coefficient of convective heat transfer
- k:
-
heat-exchange coefficient from the internal surface of the lining with temperature To in the medium with temperature Tm
- B:
-
fuel expenditure
- QH P :
-
heat of combustion
- vα :
-
volume of the combustion fuel products per 1 m3 of gas
- cg :
-
specific heat capacity of the gas
- h:
-
overall height of the channel
- x:
-
instantaneous height coordinate in the channel
Literature cited
M. M. Éfros, “Enhancement of heat-exchange processes in the working space of gas furnaces and methods for improving them,” Gasovaya Promy., No. 4, 39–45 (1966).
M. A. Denisov and A. Kh. Bokovikova, “Efficiency of heat exchange with different schemes for moving waste gas in the working chambers of furnaces,” in: Metallurgical Heat Engineering [in Russian], No. 4, Metallurgiya, Moscow (1975), pp. 102–110.
S. I. Gertsyk, “Investigation of some problems of external heat exchange in plasma furnaces with nonuniform temperature fields,” Author's Abstract of Candidate's Dissertation, Evening Metallurgical Institute, Moscow (1972).
A. E. Erinov and B. S. Soroka, Radiation Methods for Burning Gaseous Fuel in Heating Furnaces [in Russian], Tekhnika, Kiev (1970)
M. M. Mel'man, Yu. A. Popov, and A. S. Nevskii, “Effect of reflection by the lining on radiant heat exchange in a layer of nonisothermal selective gas,” Izv. Sib. Otd. Akad. Nauk SSR, Ser. Tekh. Nauk, Issue 1, No. 3, 49–52 (1978).
V. H. MacAdam, Heat Transfer [Russian translation], Gostekhizdat, Moscow (1961).
S. L. Detkov and A. V. Vinogradov, “Heat transfer by radiation in a layer of CO2 and H2O gases and their mixtures,” Izv. Akad. Nauk SSSR, Energ. Transport, No. 3, 139–144 (1969).
M. A. Mikheev and I. M. Mikheeva, Foundations of Heat Transfer [in Russian], Énergiya, Moscow (1973).
B. S. Mastryukov, N. P. Kuznetsova, and A. P. Shutov, “Investigation of the emissivity of industrial refractory materials,” in: Radiative Heat Exchange in Industrial Furnaces [in Russian], Metallurgiya, Moscow (1975) (MISiS, Nauchn. Trudy No. 84), pp. 43–55.
V. N. Adrianov, Foundations of Radiation and Complex Heat Exchange [in Russian], Énergiya, Moscow (1972).
Author information
Authors and Affiliations
Additional information
The indices for the temperatures and heat fluxes are as follows: 0, lining; 4, metal; 1, 2, and 3, gas zones; m, media.
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 39, No. 4, pp. 692–698, October, 1980.
Rights and permissions
About this article
Cite this article
Zhdanovskaya, I.V., Shklyar, F.R., Bokovikova, A.K. et al. Heat exchange with different schemes for introducing the heat-exchange agent into a furnace. Journal of Engineering Physics 39, 1116–1120 (1980). https://doi.org/10.1007/BF00822147
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00822147