Notices
Results 1 to 7 of 7

Thread: what's the quickest way to change the temperature of water?

  1. #1 what's the quickest way to change the temperature of water? 
    New Member
    Join Date
    Jan 2009
    Posts
    3
    Hi all, first post

    I'm wondering, in theory of course; if I wanted to cool the temp of water very fast how would I do it?

    example: Say a small amount of liquid in a glass is at room temp, lets say 18c and I wanted to cool it by 10c ? what method's could be used to cool this in a second?

    AND, would it be easier to cool the water if it were running over the cooling device, instead of static water?


    Reply With Quote  
     

  2.  
     

  3. #2  
    Time Lord
    Join Date
    Apr 2008
    Posts
    5,328
    Maximize surface contact with the heatsink. Idealized, that would be configured so that every molecule of water touches it.

    In practice you cant' cool every molecule simultaneously, so you encourage already cooled molecules to make way for warmer ones. That's why ice is bad - it hogs the cold so to speak.


    A pong by any other name is still a pong. -williampinn
    Reply With Quote  
     

  4. #3  
    New Member
    Join Date
    Jan 2009
    Posts
    3
    what's a heatsink?

    how would you encourage cooler molecules to make way?
    Reply With Quote  
     

  5. #4  
    Suspended
    Join Date
    Apr 2007
    Location
    Pennsylvania
    Posts
    8,795
    If you spray the water in little droplets into frigid air, it will freeze pretty quick. That's how the snow making machines at ski resorts work.
    Reply With Quote  
     

  6. #5  
    Time Lord
    Join Date
    Apr 2008
    Posts
    5,328
    A heatsink is any colder thing the water conducts heat into. Then the heat sink in turn must cool itself, but that's likely easier.

    You encourage cooled water to make way for warm, by moving it. You might swish the heat sink around for example. Or make the water run over the heat sink.

    Harold's solution works great because with "atomized" mist every bit of water makes contact with cold air.
    A pong by any other name is still a pong. -williampinn
    Reply With Quote  
     

  7. #6  
    New Member
    Join Date
    Jan 2009
    Posts
    3
    Thanks both for your help.

    I'm looking for a solution; mixing science technology with engineering to turn my idea into reality.

    Bit about me:
    I'm a business man from the North-West of England. Most of my business models are service related and investment based, property, forex, stocks, etc.

    I have a business plan which is product based (and invention of sorts) something I need help with.

    If anyone here is interested in working together to design, create, and turn my idea into reality, please email me at: boothollie@yahoo.co.uk.

    The skills I need are science related and engineering. So there may be a few of us needed.

    All costs incurred will be paid for by me. There will be a confidentiality agreement to sign. The initial 'concept' of the idea will be decisive whether we move forward with it or not.

    If it works it could be substantially rewarding, but as in business nothing is guarenteed.

    Thanks in advance, I look forward to your replies.

    Ollie.
    Reply With Quote  
     

  8. #7  
    Forum Senior Booms's Avatar
    Join Date
    Sep 2008
    Location
    The perceptual schematic known as earth
    Posts
    361
    The absolute best way to lower water temp asap is to expand it. Compression generates heat. squashing playdough makes it hotter and softer and this works in reverse putting water into an atmospheric pressure chamber and simulating 0 atmosphere (space) will freeze the water instantly




    In practical application this is terrible, where are you gonna get an APC after all? just spray the water into a below 0 enviroment. making the water as still as possible and take up as much surface area as possible helps
    It's not how many questions you ask, but the answers you get - Booms

    This is the Acadamy of Science! we don't need to 'prove' anything!
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •