IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v86y2009i11p2394-2400.html
   My bibliography  Save this article

Feasibility study on power ultrasound for regeneration of silica gel--A potential desiccant used in air-conditioning system

Author

Listed:
  • Yao, Ye
  • Zhang, Weijiang
  • Liu, Shiqing

Abstract

A new regeneration method using power ultrasound was put forward to overcome the limitations of silica gel in air-conditioning applications, such as high regeneration temperature and low regeneration efficiency. The technical feasibility of the new method was validated experimentally and demonstrated in detail from different sides. The experiments were performed under different regeneration temperatures, i.e. 45 °C, 55 °C, 65 °C and 75 °C. The power and frequency of ultrasound applied in this experimental study was set as 40 W and 26 kHz, respectively. The three indicators, including the regeneration degree (RD), enhanced rate of regeneration (ER) and energy-saving rate (ESR), were suggested to evaluate the effect of power ultrasound in the regeneration. The Crank's diffusion model was used for the calculation of the moisture diffusivity in silica gel, and the Arrhenius equation for the determination of energy activation of moisture desorption on silica gel. The analysis results prove that the introduction of high-intensity ultrasound to the regeneration of silica gel can help to improve the regeneration efficiency and reduce regeneration energy. The benefits should owe to the special [`]heating effect' and [`]micro-vibration effect' caused by power ultrasound that can enhance the moisture diffusivity in silica gel and lower the activation energy of moisture desorption on silica gel.

Suggested Citation

  • Yao, Ye & Zhang, Weijiang & Liu, Shiqing, 2009. "Feasibility study on power ultrasound for regeneration of silica gel--A potential desiccant used in air-conditioning system," Applied Energy, Elsevier, vol. 86(11), pages 2394-2400, November.
    • Handle: RePEc:eee:appene:v:86:y:2009:i:11:p:2394-2400
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/B6V1T-4W5VDG4-2/2/b57153e66642c60601f52e9b9ab9c15c
    Download Restriction: Full text for ScienceDirect subscribers only
    ---><---

    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. Xiong, Z.Q. & Dai, Y.J. & Wang, R.Z., 2010. "Development of a novel two-stage liquid desiccant dehumidification system assisted by CaCl2 solution using exergy analysis method," Applied Energy, Elsevier, vol. 87(5), pages 1495-1504, May.
    2. Angrisani, Giovanni & Capozzoli, Alfonso & Minichiello, Francesco & Roselli, Carlo & Sasso, Maurizio, 2011. "Desiccant wheel regenerated by thermal energy from a microcogenerator: Experimental assessment of the performances," Applied Energy, Elsevier, vol. 88(4), pages 1354-1365, April.
    3. Zhang, Guiying & Tian, Changqing & Shao, Shuangquan, 2014. "Experimental investigation on adsorption and electro-osmosis regeneration of macroporous silica gel desiccant," Applied Energy, Elsevier, vol. 136(C), pages 1010-1017.
    4. Bhattacharya, Madhuchhanda & Basak, Tanmay, 2013. "A theoretical study on the use of microwaves in reducing energy consumption for an endothermic reaction: Role of metal coated bounding surface," Energy, Elsevier, vol. 55(C), pages 278-294.
    5. Acevedo, Luis & Usón, Sergio & Uche, Javier, 2015. "Local exergy cost analysis of microwave heating systems," Energy, Elsevier, vol. 80(C), pages 437-451.
    6. Fan, Hongming & Shao, Shuangquan & Tian, Changqing, 2014. "Performance investigation on a multi-unit heat pump for simultaneous temperature and humidity control," Applied Energy, Elsevier, vol. 113(C), pages 883-890.
    7. Qi, Ronghui & Tian, Changqing & Shao, Shuangquan, 2010. "Experimental investigation on possibility of electro-osmotic regeneration for solid desiccant," Applied Energy, Elsevier, vol. 87(7), pages 2266-2272, July.
    8. Qi, Ronghui & Tian, Changqing & Shao, Shuangquan & Tang, Mingsheng & Lu, Lin, 2011. "Experimental investigation on performance improvement of electro-osmotic regeneration for solid desiccant," Applied Energy, Elsevier, vol. 88(8), pages 2816-2823, August.
    9. Ranjbaran, M. & Zare, D., 2013. "Simulation of energetic- and exergetic performance of microwave-assisted fluidized bed drying of soybeans," Energy, Elsevier, vol. 59(C), pages 484-493.
    10. Yon, Hao Ren & Cai, Wenjian & Wang, Youyi & Shen, Suping, 2018. "Performance investigation on a novel liquid desiccant regeneration system operating in vacuum condition," Applied Energy, Elsevier, vol. 211(C), pages 249-258.
    11. Liu, Xiaoli & Qu, Ming & Liu, Xiaobing & Wang, Lingshi, 2019. "Membrane-based liquid desiccant air dehumidification: A comprehensive review on materials, components, systems and performances," Renewable and Sustainable Energy Reviews, Elsevier, vol. 110(C), pages 444-466.

    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:appene:v:86:y:2009:i:11:p:2394-2400. 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.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    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.