Preview

Power engineering: research, equipment, technology

Advanced search

CALCULATION OF TEMPERATURE-HUMIDITY MODE OF BRICK AND REINFORCED CONCRETE CHIMNEYS WALLS

https://doi.org/10.30724/1998-9903-2017-19-9-10-94-105

Abstract

The method for calculating the temperature-humidity mode of brick and reinforced concrete chimneys is presented. The processes of heat exchange of combustion products in the gas volume of the chimneys and heat and mass transfer in it’s walls also, are modeled. The parameters of vapour transfer in the walls of reinforced concrete chimneys in various operating modes of the boiler plant are calculated. The range of flue gases parameters at which the "dry" operating mode of a reinforced concrete chimneys is realized is determined.

About the Authors

D. A. Khvorenkov
Kalashnikov Izhevsk State Technical University, Izhevsk
Russian Federation

senior teacher, department "Heat power engineering"



O. I. Varfolomeeva
Kalashnikov Izhevsk State Technical University, Izhevsk
Russian Federation
Cand. Sci. (Techn.), associate professor, dean of the Heat Engineering Faculty


E. V. Korepanov
Kalashnikov Izhevsk State Technical University, Izhevsk
Russian Federation

Cand. Sci. (Techn.), associate professor, department "Heat Supply, Heating, Ventilation and Air Conditioning”



References

1. Khvorenkov D.A. Mathematical modeling of gas dynamics and heat transfer in the system of smoke removal of heat-energy devices. D.A. Khvorenkov, O.I. Varfolomeeva. Proceedings of Akademenergo. 2012. No. 4. Pp. 15-27.

2. Chi-Ming Chu, Md Mizanur Rahman, Sivakumar Kumaresan. Improved thermal energy discharge rate from a temperature-controlled heating source in a natural draft chimney. Applied Thermal Engineering. 2016. Vol. 98. Pр. 991-1002.

3. Liang Xu, Jingqi Yuan. Thermodynamic properties calculation of the flue gas based on its composition estimation for coal-fired power plants. Applied Thermal Engineering. 2015. Vol. 90. Pр. 366375.

4. C. Chantana, S. Kumar. Experimental and theoretical investigation of air-steam condensation in a vertical tube at low inlet steam fractions. Applied Thermal Engineering. 2013. Vol. 54. Iss. 2. Pp. 399-412.

5. L. Yeon-Gun, J. Yeong-Jun, C. Dong-Jae, K. Sin. Experimental Investigation of Steam Condensation Heat Transfer in the Presence of Noncondensable Gas on a Vertical Tube. Journal of Energy Engineering. 2015. Vol. 24. Iss. 1. Pp. 42-50.

6. Ilinsky V.M. Building thermophysics (enclosing structures and microclimate of buildings). M., Higher School, 1974. 320 p.

7. Chimneys: A Reference Manual. Ed. M. N. Izhorina. Moscow: Teplotekhnik, 2004. 496 p.

8. Khvorenkov D.A., Varfolomeeva O.I. On the issue of condensate formation in the chimneys of boiler plants. Sanitary Engineering. Heating. Conditioning. 2005. No. 8. P. 64-68.

9. Fokin K.F. The construction of the building is surrounded by a building. Ed. 4, revised and supplemented. M .: Stroyizdat, 1973. 287 p.

10. Bauphysik. Planung und Anwendung. Schild, Pohlenz, Casselmann, Dahmen, Ed. 4. Braunschweig: Vieweg+Teubner Verlag, 1990.

11. Model project 907-2-229. Chimney prefabricated reinforced concrete stack H=30 m; D0=1.2 m with overground flue gas connection for boiler plants. Album 1. Approved and put into operation VNIPITEPLOPROEKT. Order No. 179 of September 14, 1997.

12. SP 131.13330.2012. Set of rules. Construction climatology. Actualized edition instead of SNiP 23-01-99*. Russian Federation. M: Ministry of Regional Development. 2012. 108 p.


Review

For citations:


Khvorenkov D.A., Varfolomeeva O.I., Korepanov E.V. CALCULATION OF TEMPERATURE-HUMIDITY MODE OF BRICK AND REINFORCED CONCRETE CHIMNEYS WALLS. Power engineering: research, equipment, technology. 2017;19(9-10):94-105. (In Russ.) https://doi.org/10.30724/1998-9903-2017-19-9-10-94-105

Views: 456


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 1998-9903 (Print)
ISSN 2658-5456 (Online)