IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v33y2008i7p1137-1143.html
   My bibliography  Save this article

Energy efficiency improvements in longan drying practice

Author

Listed:
  • Tippayawong, N.
  • Tantakitti, C.
  • Thavornun, S.

Abstract

This paper presents and evaluates methods of improvement of energy utilization and reduction of energy cost in conventional unpeeled longan drying. Existing dryers were modified into a new dryer arrangement. Performance in terms of specific energy utilization, thermal efficiency and operating cost indices for both traditional and new designs was evaluated. Results showed that the modified dryer yielded an average thermal efficiency of 0.35, compared to 0.29 for the existing dryer. For the same mass of dried longan produced, specific energy utilization and fuel cost were reduced by more than 16% and 80%, respectively. The improvement was attributed to fuel switching from liquefied petroleum gas to wood, heat recovery via hot air recirculation, better temperature and humidity control, and thermal insulation. The new dryer with improved design and better energy efficiency was estimated to have payback period less than 3 years.

Suggested Citation

  • Tippayawong, N. & Tantakitti, C. & Thavornun, S., 2008. "Energy efficiency improvements in longan drying practice," Energy, Elsevier, vol. 33(7), pages 1137-1143.
    • Handle: RePEc:eee:energy:v:33:y:2008:i:7:p:1137-1143
    DOI: 10.1016/j.energy.2008.02.007
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054420800056X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2008.02.007?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. Yotsaphat Kittichotsatsawat & Varattaya Jangkrajarng & Korrakot Yaibuathet Tippayawong, 2021. "Enhancing Coffee Supply Chain towards Sustainable Growth with Big Data and Modern Agricultural Technologies," Sustainability, MDPI, vol. 13(8), pages 1-20, April.
    2. Dejchanchaiwong, Racha & Kumar, Anil & Tekasakul, Perapong, 2019. "Performance and economic analysis of natural convection based rubber smoking room for rubber cooperatives in Thailand," Renewable Energy, Elsevier, vol. 132(C), pages 233-242.
    3. Darvishi, Hosain & Azadbakht, Mohsen & Noralahi, Bashir, 2018. "Experimental performance of mushroom fluidized-bed drying: Effect of osmotic pretreatment and air recirculation," Renewable Energy, Elsevier, vol. 120(C), pages 201-208.
    4. Motevali, Ali & Minaei, Saeid & Khoshtaghaza, Mohammad Hadi & Amirnejat, Hamed, 2011. "Comparison of energy consumption and specific energy requirements of different methods for drying mushroom slices," Energy, Elsevier, vol. 36(11), pages 6433-6441.
    5. Singh, Shobhana & Kumar, Subodh, 2013. "Solar drying for different test conditions: Proposed framework for estimation of specific energy consumption and CO2 emissions mitigation," Energy, Elsevier, vol. 51(C), pages 27-36.
    6. Cheng-Han Li & Yu-Ting Hsu & Chun-Hung Hsieh & Ching-Wei Cheng, 2021. "A Novel Semiautomatic Flesh Peeling and Seed Removing Mechanism for Dried Longan," Agriculture, MDPI, vol. 11(1), pages 1-11, January.
    7. Walmsley, Timothy G. & Walmsley, Michael R.W. & Atkins, Martin J. & Neale, James R. & Tarighaleslami, Amir H., 2015. "Thermo-economic optimisation of industrial milk spray dryer exhaust to inlet air heat recovery," Energy, Elsevier, vol. 90(P1), pages 95-104.
    8. Angelo Del Giudice & Andrea Acampora & Enrico Santangelo & Luigi Pari & Simone Bergonzoli & Ettore Guerriero & Francesco Petracchini & Marco Torre & Valerio Paolini & Francesco Gallucci, 2019. "Wood Chip Drying through the Using of a Mobile Rotary Dryer," Energies, MDPI, vol. 12(9), pages 1-16, April.

    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:energy:v:33:y:2008:i:7:p:1137-1143. 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/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.