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  1. #1
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    Is the answer 6K or 2K?



    OK. Guys.
    Say we have a Suction Temperature of 4c and a SST of -2c.

    Mathematically the answer of 4 and -2 added together is 2

    However 4 to -2 is a 6c split.
    So which is the answer from a superheat perspective?
    Grizzly



  2. #2
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    Re: Is the answer 6K or 2K?

    Grizzly, +4 and -2 =6. As in 0 to +4*c sensible heat, then add the -2 to 0*c as well as it is is also sensible heat.
    To the optimist, the glass is half full. To the pessimist, the glass is half empty.

  3. #3
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    Re: Is the answer 6K or 2K?

    +4 -(-2)= +4+2 = +6

  4. #4
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    Re: Is the answer 6K or 2K?

    Either point crosses the 0 Datum hence it`s 6 k

  5. #5
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    Re: Is the answer 6K or 2K?

    Since superheat Is ^t of sst and st then it's 6C

  6. #6
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    Re: Is the answer 6K or 2K?

    Quote Originally Posted by Grizzly View Post
    OK. Guys.
    Say we have a Suction Temperature of 4c and a SST of -2c.

    Mathematically the answer of 4 and -2 added together is 2

    However 4 to -2 is a 6c split.
    So which is the answer from a superheat perspective?
    Grizzly
    I now understand your question and will explain the thoery of the one you will know---- It -4 +2 = -2 so +6 being the dt = 4 sst = +2 which is 6 -4 square which is -2
    So the final figure is an dtla figure

  7. #7
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    Re: Is the answer 6K or 2K?

    sorry lads. just looking to find out how to start a new post

  8. #8
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    Re: Is the answer 6K or 2K?

    go to home select forum and then start new thread thats my method

    Ps good site you have found here

  9. #9
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    Re: Is the answer 6K or 2K?

    cheers quality

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    Re: Is the answer 6K or 2K?

    hey quality, home and forum are beside each other, went in both and cant see anywhere to start new thread

  11. #11
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    Re: Is the answer 6K or 2K?

    You need to select a form to post in click the forum and I normaly find the post new thread at the boottom

  12. #12
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    Re: Is the answer 6K or 2K?

    Quote Originally Posted by brian connolly View Post
    sorry lads. just looking to find out how to start a new post
    Click on the 'FORUM' button at the top
    Scroll down until you find the correct section title, i.e. 'Fundamentals'
    Open the selected section and the 'New Thread' button is at the top
    I'm back on the Pale

  13. #13
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    Re: Is the answer 6K or 2K?

    Hey Grizzly
    The superheat is 6.
    I look at it this way - forget + and - numbers and work as if they are all 1 increments on a rule and count the difference between the two points.
    Thats my story anyway.

  14. #14
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    Re: Is the answer 6K or 2K?

    OK. Guys "Hands Up"!
    I already knew the answer, only I watched a chap calculating a superheat value recently and he took the negative value away from the positive.

    When I pointed out the correct method (as everyone else on this post!).

    I though "what a good topic for the forum"!

    Sadly you are all to clever.
    Some interesting way of explaining all the same.
    Thanks Grizzly

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