Tests of a Novel Ceiling Panel for Maintaining Space Relative Humidity by Moisture Transfer from an Aqueous Salt Solution

    Volume 6, Issue 4 (April 2009)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Published Online: 30 March 2009

    Page Count: 10


    Fauchoux, Melanie T.
    Ph.D. Candidate, Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK

    Simonson, Carey J.
    Professor, Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK

    Torvi, David A.
    Associate Professor, Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK

    (Received 18 July 2008; accepted 24 February 2009)

    Abstract

    Radiant ceiling panels are used to heat and cool occupied spaces as they satisfy comfort conditions better than all-air systems. Radiant panels also consume less energy as fan size and heating and cooling loads are reduced. A disadvantage of radiant ceiling panels is the lack of control of the relative humidity (RH) in the space, which can affect comfort. The goal of this research is to create a new ceiling panel that can transfer both heat and moisture to maintain temperature and RH in a space. The heat and moisture transfer panel (HAMP) is constructed from a porous membrane and uses a salt solution as the transfer media. Tests have been run on the HAMP using different salt solutions and temperatures in order to determine the amount of moisture transferred between the HAMP and the air. Given initially dry air, the HAMP is able to increase the RH of the air up to 15 % RH with water and up to 7.8 % RH with a salt solution. This results in a change in humidity ratio of 2.7 g/kg with water and 1.3 g/kg with a salt solution.


    Paper ID: JAI102034

    DOI: 10.1520/JAI102034

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    Author
    Title Tests of a Novel Ceiling Panel for Maintaining Space Relative Humidity by Moisture Transfer from an Aqueous Salt Solution
    Symposium Second Symposium on Heat-Air-Moisture Transport: Measurements and Implications in Buildings, 2009-04-20
    Committee C16