IDEAS home Printed from https://ideas.repec.org/a/ids/ijgeni/v19y2003i4p373-386.html
   My bibliography  Save this article

Cooling and heating potential of earth-air tunnel heat exchanger (EATHE) for non-air-conditioned building

Author

Listed:
  • Rakesh Kumar, S.C Kaushik, Ar. Ramesh Srikonda

Abstract

A numerical model to predict energy conservation potential of earth-air heat exchanger system and passive thermal performance of building has been developed. This model improves upon previous studies by incorporating effects of ground temperature gradient, surface conditions, moisture content and various design aspects of earth-air-tunnel heat exchanger (EATHE). The model is based on simultaneously coupled heat and mass transfer in the EATHE and is developed within the scope of numerical techniques of finite difference techniques and FFT (Matlab). The model is validated against experimental data of a similar tunnel in Mathura (India), and is then used to predict the tube-extracted temperature for various parameters such as humidity variations of circulating air, airflow rate and ambient air temperature. The model is found to be more accurate in predicting tube extracted temperature variations along the length (error range ±1.6%). The earth-air-tunnel is further coupled to a non-air-conditioned building to study reduction in cooling and heating loads. The cooling potential of an 8m earth tunnel is found adequate (19KW) to maintain an average room temperature 27.65°C. However, an auxiliary energy load of 1.5KW for the winter season is required to achieve comfort conditions with an EATHE system affecting an average room temperature of 24.48°C. The present model can be easily coupled to different greenhouse and building simulation codes.

Suggested Citation

  • Rakesh Kumar, S.C Kaushik, Ar. Ramesh Srikonda, 2003. "Cooling and heating potential of earth-air tunnel heat exchanger (EATHE) for non-air-conditioned building," International Journal of Global Energy Issues, Inderscience Enterprises Ltd, vol. 19(4), pages 373-386.
  • Handle: RePEc:ids:ijgeni:v:19:y:2003:i:4:p:373-386
    as

    Download full text from publisher

    File URL: http://www.inderscience.com/link.php?id=3202
    Download Restriction: Access to full text is restricted to subscribers.
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Rachana Vidhi, 2018. "A Review of Underground Soil and Night Sky as Passive Heat Sink: Design Configurations and Models," Energies, MDPI, vol. 11(11), pages 1-24, October.
    2. Eicker, Ursula & Vorschulze, Christoph, 2009. "Potential of geothermal heat exchangers for office building climatisation," Renewable Energy, Elsevier, vol. 34(4), pages 1126-1133.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ids:ijgeni:v:19:y:2003:i:4:p:373-386. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sarah Parker (email available below). General contact details of provider: http://www.inderscience.com/browse/index.php?journalID=13 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.