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The role of leak air in a double-wall chimney

Heat and Mass Transfer volume 51, pages 787–794 (2015)Cite this article

Abstract

In modern buildings with tight shells, often room-independent air supply is required for proper operation of biomass stoves. One possibility to arrange this supply is to use a double-wall chimney with flue gas leaving through the pipe and fresh air entering through the annular gap. A one-dimensional quasi-static model based on balance equations has been developed and compared with experimental data. Inclusion of leak air is crucial for reproduction of the experimental results.

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References

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Acknowledgments

The authors are grateful to Schiedel AG, in particular to Gerald Steinecker, for the excellent cooperation during the research project.The model has been developed in the project FLOWS within the framework of the competence center Bioenergy 2020+. The competence center Bioenergy 2020+ is supported in the framework of COMET—Competence Centers for Excellent Technologies by BMVIT, BMWFJ and the provinces of Burgenland, Niederösterreich and Steiermark. The program is operated by the FFG.

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Authors and Affiliations

  1. Bioenergy 2020+, Gewerbepark Haag 3, 3250, Wieselburg-Land, Austria

    Klaus Lichtenegger, Babette Hebenstreit, Christian Pointner, Christoph Schmidl & Ernst Höftberger

  2. Energy Engineering, Department of Engineering Sciences and Mathematics, Luleå University of Technology, 971 87, Luleå, Sweden

    Babette Hebenstreit

Authors
  1. Klaus Lichtenegger
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  2. Babette Hebenstreit
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  3. Christian Pointner
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  4. Christoph Schmidl
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  5. Ernst Höftberger
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Corresponding author

Correspondence to Klaus Lichtenegger.

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Lichtenegger, K., Hebenstreit, B., Pointner, C. et al. The role of leak air in a double-wall chimney. Heat Mass Transfer 51, 787–794 (2015). https://doi.org/10.1007/s00231-014-1454-6

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  • DOI: https://doi.org/10.1007/s00231-014-1454-6

Keywords

  • Heat Transfer Coefficient
  • Leakage Rate
  • Pipe Wall
  • Passive House
  • Biomass Stove