IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v29y2004i2p211-222.html
   My bibliography  Save this article

Natural convective heat transfer in trapezoidal enclosure of box-type solar cooker

Author

Listed:
  • Kumar, Subodh

Abstract

This paper presents simple thermal analysis to evaluate the natural convective heat transfer coefficient, hc12 for a trapezoidal absorber plate-inner glass cover enclosure of a double-glazed box-type solar cooker. Several indoor simulation experiments in steady state conditions have been performed to measure the temperatures of absorber plate, inner and outer glass covers, ambient air, electrical input supply and wind speed. The experimental data has been correlated by an equation of the form, Nu = CRan. The values of the constants C and n, obtained by linear regression analysis are used to calculate the convective heat transfer coefficient. The heat transfer analysis predicts that hc12 varies from 4.84 to 6.23 W m−2 oC−1 for the absorber plate temperature from 54 to 141 oC. The results of hc12 are compared with those of rectangular enclosure for the same absorber-inner glass cover temperatures and gap spacing. The study reveals that the values of convective heat transfer coefficient and top heat loss coefficient for rectangular enclosure are lower by 31–35% and 7% respectively.

Suggested Citation

  • Kumar, Subodh, 2004. "Natural convective heat transfer in trapezoidal enclosure of box-type solar cooker," Renewable Energy, Elsevier, vol. 29(2), pages 211-222.
    • Handle: RePEc:eee:renene:v:29:y:2004:i:2:p:211-222
    DOI: 10.1016/S0960-1481(03)00193-9
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148103001939
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/S0960-1481(03)00193-9?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.

    References listed on IDEAS

    as
    1. Kumar, Subodh & Sharma, V.B. & Kandpal, T.C. & Mullick, S.C., 1997. "Wind induced heat losses from outer cover of solar collectors," Renewable Energy, Elsevier, vol. 10(4), pages 613-616.
    2. Mullick, S.C. & Kandpal, T.C. & Kumar, Subodh, 1997. "Top heat-loss factor of double-glazed box-type solar cooker from indoor experiments," Energy, Elsevier, vol. 22(6), pages 559-565.
    Full references (including those not matched with items on IDEAS)

    Citations

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


    Cited by:

    1. Saxena, Abhishek & Varun & Pandey, S.P. & Srivastav, G., 2011. "A thermodynamic review on solar box type cookers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(6), pages 3301-3318, August.
    2. Cuce, Erdem & Cuce, Pinar Mert, 2013. "A comprehensive review on solar cookers," Applied Energy, Elsevier, vol. 102(C), pages 1399-1421.
    3. Saxena, Abhishek & Cuce, Erdem & Tiwari, G.N. & Kumar, Avnish, 2020. "Design and thermal performance investigation of a box cooker with flexible solar collector tubes: An experimental research," Energy, Elsevier, vol. 206(C).
    4. Thirugnanasambandam, Mirunalini & Iniyan, S. & Goic, Ranko, 2010. "A review of solar thermal technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(1), pages 312-322, January.
    5. Aramesh, Mohamad & Ghalebani, Mehdi & Kasaeian, Alibakhsh & Zamani, Hosein & Lorenzini, Giulio & Mahian, Omid & Wongwises, Somchai, 2019. "A review of recent advances in solar cooking technology," Renewable Energy, Elsevier, vol. 140(C), pages 419-435.
    6. Mahavar, S. & Sengar, N. & Dashora, P., 2017. "Analytical model for electric back-up power estimation of solar box type cookers," Energy, Elsevier, vol. 134(C), pages 871-881.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Mahavar, S. & Rajawat, P. & Marwal, V.K. & Punia, R.C. & Dashora, P., 2013. "Modeling and on-field testing of a Solar Rice Cooker," Energy, Elsevier, vol. 49(C), pages 404-412.
    2. Saxena, Abhishek & Cuce, Erdem & Tiwari, G.N. & Kumar, Avnish, 2020. "Design and thermal performance investigation of a box cooker with flexible solar collector tubes: An experimental research," Energy, Elsevier, vol. 206(C).
    3. Chuawittayawuth, K. & Kumar, S., 2002. "Experimental investigation of temperature and flow distribution in a thermosyphon solar water heating system," Renewable Energy, Elsevier, vol. 26(3), pages 431-448.
    4. Saxena, Abhishek & Varun & Pandey, S.P. & Srivastav, G., 2011. "A thermodynamic review on solar box type cookers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(6), pages 3301-3318, August.
    5. Venegas, M. & Rodríguez-Hidalgo, M.C. & Salgado, R. & Lecuona, A. & Rodríguez, P. & Gutiérrez, G., 2011. "Experimental diagnosis of the influence of operational variables on the performance of a solar absorption cooling system," Applied Energy, Elsevier, vol. 88(4), pages 1447-1454, April.
    6. Cuce, Erdem & Cuce, Pinar Mert, 2013. "A comprehensive review on solar cookers," Applied Energy, Elsevier, vol. 102(C), pages 1399-1421.
    7. Karwa, Rajendra & Chitoshiya, Girish, 2013. "Performance study of solar air heater having v-down discrete ribs on absorber plate," Energy, Elsevier, vol. 55(C), pages 939-955.
    8. Rejeb, Oussama & Gaillard, Leon & Giroux-Julien, Stéphanie & Ghenai, Chaouki & Jemni, Abdelmajid & Bettayeb, Maamar & Menezo, Christophe, 2020. "Novel solar PV/Thermal collector design for the enhancement of thermal and electrical performances," Renewable Energy, Elsevier, vol. 146(C), pages 610-627.

    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:29:y:2004:i:2:p:211-222. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.