Investigation of the influence of thermal conductor inclusions on the microclimate of premises under emergency situations in the systems of heat supply

Authors

  • A. S. Belikov Dr. Sc. (Tech.), Prof., Ukraine
  • I. A. Kolesnik Cand. Sc. (Tech.), Ukraine
  • S. Yu. Rahimov Cand. Sc. (Tech.), Assoc. Prof., Ukraine
  • I. G. Maladyka Cand. Sc. (Tech.), Associate Prof., Ukraine
  • D. V. Vovk student, Ukraine

Keywords:

microclimate, Walling, Thermally conductive inclusions

Abstract

Abstract. Purpose. Investigation of the temperature of the internal surface of the enclosing structure for heat-conducting connection (diaphragm, through-seam from the solution, joint of panels, rigid bonds of the walls of lightweight masonry, fachwerk elements, etc.) which must be no lower than the dew point of the internal air at the design winter temperature of the outside air. Methodology. Theoretical and experimental studies were carried out on the basis of fundamental knowledge in the field of thermal processes and techniques for solving problems of heat transfer, modeling of dynamic processes, methods and analysis of random processes, methods of mathematical statistics and forecasting. Findings. Analysis of the calculations performed using the dependence (10) indicates a significant (by 5-9 ° C) decrease in temperature on the inner wall surface in the vicinity of the metallic thermal conductive inclusion in comparison with the wall temperature outside the thermal conductive inclusion. In the presence of nonmetallic heat-conducting inclusions, their effect is noticeable (the temperature decreases by 2-4 ° C) in comparison with the temperature on the inner surface of a homogeneous wall. Originality. The dependencies allowing to determine the temperature of the inner surface of the enclosing structure in the area of metallic and non-metallic heat-conducting inclusions in emergency situations in heat supply systems are established. Practical value. The conducted researches testify to the possibility of intensive condensation of moisture in the area of both metallic and nonmetallic heat-conducting inclusions, and with prolonged cooling of the building's premises (more than 2-3 days), freezing of the wall with all the consequences resulting from this unfavorable phenomenon (up to the destruction of the structure).

Author Biographies

A. S. Belikov, Dr. Sc. (Tech.), Prof.

Department of Life Safety, State Higher Education Establishment "Pridneprovsk State Academy of Civil Engineering and Architecture", 24-A, Chernishevskogo st., Dnepropetrovsk 49005, Ukraine, phone +38 (0562) 46-98-73

I. A. Kolesnik, Cand. Sc. (Tech.)

Department of heating, ventilation and air quality, State Higher Education Establishment "Pridneprovsk State Academy of Civil Engineering and Architecture", 24-A, Chernishevskogo st., Dnepropetrovsk 49005, Ukraine, phone +38 (0562) 47-16-00

S. Yu. Rahimov, Cand. Sc. (Tech.), Assoc. Prof.

Department of Organization and technical support rescue operations National University of Civil Defence of Ukraine, 94 Chernishevskogo st., Kharkiv, 61023, Ukraine, phone +38 (057) 370-50-52

I. G. Maladyka, Cand. Sc. (Tech.), Associate Prof.

The firefighting tactics and recscue operations department, , Cherkassy Institute of Fire Safety named after Heroes of Chornobyl of National University of Civil Defense of Ukraine, Head, 8, Onoprienko St., Cherkassy, Ukraine, tel. +38 (097) 435-10-51

D. V. Vovk, student

Department of heating, ventilation and air quality, State Higher Education Establishment "Pridneprovsk State Academy of Civil Engineering and Architecture", 24-A, Chernishevskogo st., Dnepropetrovsk 49005, Ukraine, phone +38 (0562) 47-16-00

References

Banhidi L. Teplovoy mikroklimat pomeshcheniy: Raschet komfortnykh parametrov po teplooshchushcheniyam cheloveka [Thermal indoor climate: Calculation of comfort parameters Teploobmennik man] / Trans. with hung. V.M. Belyaev; Under. edited by V.I. Prokhorov and A.L. Naumov. – Moscow: Stroyizdat, 1981. – 248 p. (in Russian).

Bogoslovsky V.N. Stroitel'naya teplofizika (teplofizicheskiye osnovy otopleniya, ventilyatsii i konditsionirovaniya vozdukha): ucheb. dlya vuzov 2-ye izd., perera. i dop. [Building thermal physics (thermal fundamentals of heating, ventilation and air conditioning): proc. for universities 2nd ed., Perera. and extra]. – Moscow: Vysshaya shkola, 1982. – 415 p. (in Russian).

Danilov M.P. Teploustoychivost' i teplovoy rezhim zdaniy, inzhenernykh kommunikatsiy i promyshlennykh ob"yektov. [Thermal stability and thermal conditions of buildings, utilities and industrial facilities] / M.P. Danilov, L.N. Grigoriev, A.V. Mereshchuk. - Dnipropetrovsk: RIO PGAAS, 2001. - 122 p.

Danilov M.P. Teploustoychivost' zdaniy v ekosisteme "okruzhayushchaya sreda – zdaniye – chelovek" (avariyno-defitsitnyye teplovyye rezhimy, gelio- i vetrovyye aspekty). [Thermal stability of buildings in the ecosystem "environment - building - people" (emergencydeficit thermal regimes, helio and wind aspects)] : Uch. Help. / M..P. Danilov, I.L. Vetvitsky, L.G. Chesanov, I.A. Kolesnik. - Dnepropetrovsk: Polygraphist, 2005. - 262 p.

Demin O.B. Fiziko-tekhnicheskiye osnovy proyektirovaniya zdaniy i sooruzheniy: ucheb. posob. [Physical and technical bases of designing of buildings and structures: proc. p.] – Tambov: The Compromise. state technical. University press, 2004. – P. 2. – 84 p. (in Russian).

Zakharenko, I.M., Goncharenko N.I. Vozdeystviye okruzhayushchey sredy na konstruktsii zdaniy i sooruzheniy [The impact of environment on design of buildings and structures] / Bulletin KTU. - Krivoy Rog: SIHE "Krivorzhstal national University", 2011. – Vup. 28. – S. 3 – 7. – Access mode: http://knu.edu.ua/Files/V_28_2011/18.pdf. (in Russian).

Kama F.M. Impul'snaya teoriya teploprovodnosti [Pulse theory of thermal conductivity]. – Moscow: Energiya, 1972. – 271 p. (in Russian).

Kozlov V.P., Stankevich A.V. Metody nerazrushayushchego kontrolya pri issledovanii teplofizicheskikh kharakteristik tverdykh materialov [NDT Methods in the study of thermophysical characteristics of solid materials] // Ing. Fiz. zhurn. – 1984. – T. 47. – №. 2. – P. 250 – 252. (in Russian).

Kondrat'ev G.M. Regulyarnyy teplovoy rezhim [Regular thermal mode]. – Moscow: Nauka, 1964. – 487 p. (in Russian).

Kondrat'ev G.M. Teplovyye izmereniya [Thermal measurements]. – Moscow – Leningrad: Mashgiz, 1956. – 253 p. (in Russian).

Kononovich YU.V. Teplovoy rezhim zdaniy massovoy zastroyki. [Thermal regime of mass building buildings] / Yu.V. Kononovich. - Moscow: Stroyizdat, 1986. - 158 p.

Korotkov P.A., London, G.E. Dinamicheskiye kontaktnyye izmereniya teplovykh velichin [Dynamic contact measurement of thermal variables]. – Leningrad: Mashinostroenie, 1974. – 222 p. (in Russian).

Mishchenko S.V. Analiz i sintez izmeritel'nykh sistem [Analysis and synthesis of the measurement systems] / S.V. Mishchenko, Yu.L. Muromtsev, I.E. Tsvetkov, V.N. Chernyshov. – Tambov: The Compromise. state technical. University, 1995. – 238 p. (in Russian).

Platunov E.S., etc. Teplofizicheskiye izmereniya i pribory [Thermal measurements and instruments]. – Leningrad: Mashinostroenie, 1986. – 256 p. (in Russian).

Platunov E.S. Teplofizicheskiye izmereniya v monotonnom rezhime [Thermophysical measurements in the monotone mode]. – Leningrad: Energiya, 1973. – 143 р. (in Russian).

Tabunshchikov YU.A. Teplovaya zashchita ograzhdayushchikh konstruktsiy zdaniy i sooruzheniy. [Thermal protection of enclosing structures of buildings and structures] / Yu.A. Tabunshchikov, D.Yu. Khromets, Yu.A. Matrosov. - Moscow: Stroyizdat, 1986. - 379 p.

Fokin K.F. Stroitel'naya teplotekhnika ograzhdayushchikh chastey zdaniy [Building heating equipment protecting parts of buildings] / edited by J.A. Tabunshikova, V.G. Gagarin, 5th ed., revision. – Moscow: AVOK-PRESS, 2006. – 256 p. (in Russian).

Shashkov A.G. Metody opredeleniya teploprovodnosti i temperaturoprovodnosti [Methods for determining thermal conductivity and thermal diffusivity] / A.G. Shashkov, G.M. Volokhov, T.N. Abramenko, V.P. Kozlov. – Leningrad: Energiya, 1973. – 242 р. (in Russian).

Shlykov, Y.P., Garin, E.A. Kontaktnyy teploobmen [Contact heat exchange]. – Moscow – Leningrad: Energiya, 1963. – 144 p. (in Russian).

Schneider P. Inzhenernyye problemy teploprovodnosti [Engineering problems of heat conduction]. – Moscow: Publishing house of literature, 1960. – 478 p. (in Russian).

Yaryshev N.A. Teoreticheskiye osnovy izmereniya nestatsionarnykh temperatur [The theoretical basis for the measurement of transient temperatures]. – Leningrad: Energiya, 1967. – 298 p. (in Russian).

Published

2017-04-27

Issue

Section

Energy, ecology, computer technology in construction