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Typical coooling water temperature-out on gen. set

Discussion in 'Technical Discussion' started by balboa, Oct 7, 2007.

  1. balboa, Oct 7, 2007
    #1
    balboa

    balboa Guest

    Hi there, again :)

    I'm looking for a heat-exchanger solution that uses hot cooling water leaving my auxiliary engines to heat up fresh water for domestic purposes that will be circulated continously.

    After this heat exchanger, my cooling water will enter a keelcooler.

    I came accross what looks like a good solution but wondered, what's the typicla temperature of cooling wate when it leave the engine?

    This here is a link to a turn-key 'British' solution.

    http://www.stokvisboilers.com/HeatPlateExchangers.asp

    Thanks for your feedback.

    Thorwald
  2. TSI AV, Oct 8, 2007
    #2
    TSI AV

    TSI AV Senior Member

    Joined:
    Mar 21, 2006
    Messages:
    104
    Location:
    Estonia
    Hi,

    Outlet water temperature may be different. Normally, 70-75 deg C.

    However, I experienced that it is up to 85-92 on some brands.

    My experience covers only commercial fleet, but, I hope that physics also works in a superyacht industry, :D

    So, some of commercial ships are equipped with a system, which utilizes the heat, produced by auxillary engines.
    It works good. We even did not use the diesel oil boiler in winter time. The system could handle all domestics + heating of HFO storage, settling, service tanks.

    If You are looking for heat exchangers, please consider:

    www.gea-westfalia.com
    www.alfalaval.com
    www.apv.com
    www.ami-exchangers.co.uk

    There are more brands of course, but I recommend only those, what I operated / dismantled / cleaned.

    I hope, that this info will be useful for You,

    rgds,

    Andrei
    Last edited: Oct 8, 2007
  3. balboa, Oct 8, 2007
    #3
    balboa

    balboa Guest

  4. Innomare, Oct 16, 2007
    #4
    Innomare

    Innomare Senior Member

    Joined:
    Dec 5, 2004
    Messages:
    233
    Location:
    The Netherlands
    Hi Balboa,

    I have seen another possible installation where the cooling water from the ME's or gensets is led through a jacket around the boiler before returning to the boxcooler or keelcooler. You can do this for example with a tank-in-tank boiler from ACV (http://www.acv.com/int-en/03_10/20/app.rvb?prodfam=10).

    This way, the cooling water keeps the boilers warm and you will use your electric heater much less. It saves you a separate heat exchanger.
    I would recommend to use the genset cooling water, as the main engines are hardly ever used on yachts.

    PS, Andrei, what's this love affair with Wärtsilä?

    Cheers,

    Bruno
  5. balboa, Oct 16, 2007
    #5
    balboa

    balboa Guest

    Thanks Bruno and others,

    That's a pretty perfect solution, combining the best of both, no, 5 worlds:

    - heat exchange with cooling water
    - storage
    - backup-heating capacity
    - simple
    - looks like most affordable


    Thorwald

    They also have a US rep. it seems at www.triangletube.com.
  6. TSI AV, Oct 16, 2007
    #6
    TSI AV

    TSI AV Senior Member

    Joined:
    Mar 21, 2006
    Messages:
    104
    Location:
    Estonia
    Hi,

    Balboa, I'm glad that You've found the solution, :)


    Bruno, it's a long story ...

    I worked with 6R32, 12V32, 6R46, 6L64 engines ...

    And now I have to deal a lot with Wartsila, because our ships are equipped with
    6R32, Deutz (now Wartsila), Wichmann (now Wartsila).

    So, the love is for real ...

    rgds,

    Andrei
  7. YachtForums, Oct 16, 2007
    #7
    YachtForums

    YachtForums Administrator

    Joined:
    Dec 22, 2002
    Messages:
    20,658
    Location:
    South Florida
    Andrei,

    You've been bumped to senior status. Should have done this along time ago. You've always provided helpful and informative posts. Thank you!

    (BTW... avatars must be marine related)
  8. TSI AV, Oct 17, 2007
    #8
    TSI AV

    TSI AV Senior Member

    Joined:
    Mar 21, 2006
    Messages:
    104
    Location:
    Estonia
    Yeeeah !

    Many thanks, Carl.

    Yachting keeps on infecting me... slowly and steady... it's serious... ;)

    P.S. Avatar is under consideration...

    rgds,

    Andrei