IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v36y2011i11p3023-3030.html
   My bibliography  Save this article

Theoretical model to estimate the thermal performance of an evaporative wind tower placed in an open space

Author

Listed:
  • Soutullo, S.
  • Sanchez, M.N.
  • Olmedo, R.
  • Heras, M.R.

Abstract

A theoretical model to evaluate the thermal performance of an evaporative wind tower installed in open spaces with hot and dry climates has been developed. It was based on the laws of conservation of mass and energy and used TRNSYS as a simulation tool. Evaporative wind towers produce an adiabatic cooling which has been modelled taking into account all the heat and mass exchanges between the airflow and the injected water, and also considering the processes of radiation, convection and conduction. The system analyzed has a special design based on an existing installation placed in Madrid, which is composed of sixteen evaporative wind towers with one fan and six nozzles on the top of each one. A first validation of this theoretical model was done by comparing calculated results obtained through numerical simulation with experimental data. These last data were previously registered in a campaign carried out during the summer 2008 to evaluate the thermal behaviour of the system. To contrast both results, the same initial assumptions in fan and water operation as well as environmental conditions were considered. The comparison between them during the period of 18th to 20th July 2008, show an average temperature drop of 6.5 °C and an average increase of relative humidity of 27%. These values present a high correlation, up to 0.79, between experimental and calculated wet bulb depression. The average cooling power achieved by this system varies from 13 to 16 kW, with maximum peaks around 20 kW. So this theoretical model could be used for future energy estimations of wind towers design with similar constructive characteristics.

Suggested Citation

  • Soutullo, S. & Sanchez, M.N. & Olmedo, R. & Heras, M.R., 2011. "Theoretical model to estimate the thermal performance of an evaporative wind tower placed in an open space," Renewable Energy, Elsevier, vol. 36(11), pages 3023-3030.
    • Handle: RePEc:eee:renene:v:36:y:2011:i:11:p:3023-3030
    DOI: 10.1016/j.renene.2011.03.035
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148111001625
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2011.03.035?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    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. Madjid Soltani & Alireza Dehghani-Sanij & Ahmad Sayadnia & Farshad M. Kashkooli & Kobra Gharali & SeyedBijan Mahbaz & Maurice B. Dusseault, 2018. "Investigation of Airflow Patterns in a New Design of Wind Tower with a Wetted Surface," Energies, MDPI, vol. 11(5), pages 1-23, April.
    2. Dehghani-sanij, A.R. & Soltani, M. & Raahemifar, K., 2015. "A new design of wind tower for passive ventilation in buildings to reduce energy consumption in windy regions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 182-195.
    3. Rezaeian, M. & Montazeri, H. & Loonen, R.C.G.M., 2017. "Science foresight using life-cycle analysis, text mining and clustering: A case study on natural ventilation," Technological Forecasting and Social Change, Elsevier, vol. 118(C), pages 270-280.
    4. Sánchez, M.N. & Giancola, E. & Suárez, M.J. & Blanco, E. & Heras, M.R., 2017. "Experimental evaluation of the airflow behaviour in horizontal and vertical Open Joint Ventilated Facades using Stereo-PIV," Renewable Energy, Elsevier, vol. 109(C), pages 613-623.

    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:eee:renene:v:36:y:2011:i:11:p:3023-3030. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    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.