IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v12y2019i20p3990-d278507.html
   My bibliography  Save this article

Research on a Temperature Control Device for Seawater Hydraulic Systems Based on a Natural Gas Hydrate Core Sample Pressure-Retaining and Transfer Device

Author

Listed:
  • Peihao Zhang

    (Ocean College, Zhejiang University, Zhoushan 316021, China)

  • Jiawang Chen

    (Ocean College, Zhejiang University, Zhoushan 316021, China)

  • Qiaoling Gao

    (Ocean College, Zhejiang University, Zhoushan 316021, China)

  • Bo Xiao

    (Guangzhou Marine Geological Survey, Guangzhou 510075, China)

  • Xueqiao Geng

    (Guangzhou Marine Geological Survey, Guangzhou 510075, China)

  • Peng Zhou

    (Ocean College, Zhejiang University, Zhoushan 316021, China)

Abstract

In the study of natural gas hydrates, the maintenance of the low-temperature and high-pressure state of the core sample under in situ conditions is highly important for cutting, transferring, and subsequent analysis. The pressure maintenance and temperature control device (PMTCD) for natural gas hydrate core samples described in this paper is a subsystem of the pressure-retaining and transfer device. The device consists of a water tank, seawater chillers, a plunger pump and a thermoelectrical refrigeration device. The device cools the seawater to 2 °C, and then pressurizes it to inject it into the sample cylinder. Due to the inevitable heat generated by the pressurization and heat exchange with environment, there is a thermoelectrical refrigeration device to compensate for temperature rise. Finally, the seawater temperature entering the sample cylinder is no higher than 3 °C, effectively preventing the decomposition and deterioration of the natural gas hydrate core in the sample cylinder. In this paper, the temperature increase of the device and its compensation capacity are analyzed in detail on the basis of calculation and simulation. On the basis of testing with the device, it is verified that even at the ambient temperature, the water temperature can still be maintained at 3 °C.

Suggested Citation

  • Peihao Zhang & Jiawang Chen & Qiaoling Gao & Bo Xiao & Xueqiao Geng & Peng Zhou, 2019. "Research on a Temperature Control Device for Seawater Hydraulic Systems Based on a Natural Gas Hydrate Core Sample Pressure-Retaining and Transfer Device," Energies, MDPI, vol. 12(20), pages 1-20, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:20:p:3990-:d:278507
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/12/20/3990/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/12/20/3990/
    Download Restriction: no
    ---><---

    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:gam:jeners:v:12:y:2019:i:20:p:3990-:d:278507. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.