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  1. #1
    Join Date
    Jan 2004
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    New Jersey
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  2. #2
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    Aug 2003
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    Fort Worth, TX
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    Hmm...and here I was thinking you might be posing the question as to how skilled one ought to be with a psychometric chart...the kind that deal with temperature, relative humidity, wet bulb, enthalpy, etc.

    How did the head shrinks manage to co-opt this term for a personality test?
    • Electricity makes refrigeration happen.
    • Refrigeration makes the HVAC psychrometric process happen.
    • HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.


    A building is NOT beautiful unless it is also comfortable.

  3. #3
    Join Date
    Sep 2002
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    South Dakota
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    Psychrometrics has several meanings. If you look in a dictionary you will see that many words have a first meaning, second meaning, ect..

    One of the meanings for psychrometrics is "the measure of" something.

    Therefore there is a science of measuring personality traits. In education the term psychrometrics of learning is used to refer to the measurement of how much the student has learned.

    In HVAC we measure the conditions of air such as wet and dry bulb temperatures, relative humidity, specific humidity, enthalpy, etc.. The psychrometric chart plots the relationships of these measured elements against each other so if we measure any two elements on the chart we can determine the others.

    Norm

  4. #4
    Join Date
    Aug 2003
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    Fort Worth, TX
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    Well, knowing full well I could refer to additional sources, here's what a quick check of dictionary.com rendered:

    psy·cho·met·rics P Pronunciation Key (sk-mtrks)
    n. (used with a sing. verb)
    The branch of psychology that deals with the design, administration, and interpretation of quantitative tests for the measurement of psychological variables such as intelligence, aptitude, and personality traits. Also called psychometry.

    psychometrics

    n : any branch of psychology concerned with psychological measurements [syn: psychometry, psychometrika]


    If we're speaking in loose terms of "variables", I can see how the term was crossed over to thermodynamics, but I was under the impression that psychometrics by itself dealt with temp, humidity, etc.

    Incidentally, not to nitpick, but dictionary.com returned "no definition for this entry" for the word psychRometrics.
    • Electricity makes refrigeration happen.
    • Refrigeration makes the HVAC psychrometric process happen.
    • HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.


    A building is NOT beautiful unless it is also comfortable.

  5. #5
    Join Date
    Sep 2002
    Location
    South Dakota
    Posts
    6,579

    One of the meanings of psychro is cold. Metrics means measurement. But, psychro can also mean measurement as I stated earlier in this thread.


  6. #6
    Join Date
    Aug 2003
    Location
    Fort Worth, TX
    Posts
    11,347
    Open mouth, insert foot for shophound.

    Some days are just like that. <shrug>
    • Electricity makes refrigeration happen.
    • Refrigeration makes the HVAC psychrometric process happen.
    • HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.


    A building is NOT beautiful unless it is also comfortable.

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