Heat exchange on the outside of the pipe when heat is distributed by heat networks

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Romana Dobáková
Natália Jasminská
Tomáš Brestovič
Marian Lazár
Jiří Marek

Abstract

The article deals with the exchange of heat on the outside of the pipe when distributing heat through heat networks. This is a combined heat exchange, i.e. free convection and radiation. The calculations and outputs analysed in the article are mainly applicable to thermal networks run aboveground. In the calculation, an ambient temperature of 15 °C was measured, ranging from the temperatures corresponding to the air temperatures in the channel. The results are interpreted in the form of diagrams and tables. The calculation was performed on the secondary DN 125 pipe with PIPO_ALS insulation and the calculation was extended to all nominal diameters used in the secondary wiring for determining the influence of heat transfer, depending on the change in pipe diameter.

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How to Cite
Dobáková, R., Jasminská, N., Brestovič, T., Lazár, M., & Marek, J. (2017). Heat exchange on the outside of the pipe when heat is distributed by heat networks. International Journal for Innovation Education and Research, 5(9), 82–87. https://doi.org/10.31686/ijier.vol5.iss9.807
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Articles
Author Biographies

Romana Dobáková, Technical University of Košice, Slovakia

PhD student, Department of Power Engineering, Faculty of Mechanical Engineering.

Natália Jasminská, Technical University of Košice, Slovakia

Department of Power Engineering, Faculty of Mechanical Engineering

Tomáš Brestovič, Technical University of Košice, Slovakia

Department of Power Engineering, Faculty of Mechanical Engineering

Marian Lazár, Technical University of Košice, Slovakia

Department of Power Engineering, Faculty of Mechanical Engineering

Jiří Marek, Technical University of Ostrava, Czech Republic

Faculty of Metallurgy and Materials Engineering

References

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K. Brož, Zásobování teplem, ES ČVUT. Praha, 1989

J. Prokop, Tepelné izolace, SNTL Praha, 1982

H. Steidl, Úvod do proudění tekutin a sdílení tepla. ACADEMIA, Praha, 1975

H. Hottel, Sarofim, A., T. Přenos tepla zařením. SNTL, Praha, 1979.

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