• Login
    View Item 
    •   DSpace Home
    • The Library
    • Conference Papers
    • View Item
    •   DSpace Home
    • The Library
    • Conference Papers
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Energy saving in refrigeration systems through the application of liquid pressure amplification

    Thumbnail
    View/Open
    Access is limited to UniMAP community (366.4Kb)
    Date
    2012-02-27
    Author
    Hadawey, A. F.
    Tassou, S. A.
    Ge, Y. T.
    Metadata
    Show full item record
    Abstract
    The LPA technology utilises a refrigerant pump in the liquid line after the receiver to maintain a high enough pressure differential across the expansion valve to compensate for the pressure drop in long liquid lines. This allows the condenser pressure to be varied in line with variations in the ambient temperature leading to lower discharge pressures during periods of low ambient temperatures and lower compressor power consumption. Operation at lower pressures also increases the refrigeration capacity of the system enabling it to cope with increased load demands. LPA can be applied to new refrigeration plant and as a retrofit to existing plant. LPA also enables the use of liquid injection into the discharge line of the compressor which de-superheats the refrigerant vapour before entering the condenser. This increases the capacity of the condenser which in turn enables operation of the plant at lower condensing temperatures. This paper considers the application of a LPA and liquid injection to a cold store refrigeration system. The analysis has shown that more than 10% energy saving over and above the savings that can be achieved with floating head pressure, can be achieved by adopting the use of LPA in conjunction with liquid injection.
    URI
    http://dspace.unimap.edu.my/123456789/20388
    Collections
    • Conference Papers [2599]

    Atmire NV

    Perpustakaan Tuanku Syed Faizuddin Putra (PTSFP) | Send Feedback
     

     

    Browse

    All of UniMAP Library Digital RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Atmire NV

    Perpustakaan Tuanku Syed Faizuddin Putra (PTSFP) | Send Feedback