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need heat capacity for liquid propane

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    عضو

    تاريخ التسجيل: Aug 2007
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    need heat capacity for liquid propane

    السلام عليكم


    I need the heat capacity for liquid propane as in this form

    Cp = A + BT + CT^2 + DT^3 + ET^4

    where T is the temperature in kelvin
    and Cp is in J/kmol.K

    any one can help??

  2. [2]
    alsane
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    تاريخ التسجيل: Apr 2007
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    Heat Capacity for propane
    Cp/R=A+BT+CT^2+DT^-2+ET^3........with T in (K).....this data only for propane
    Tmin 298k and T max1500k
    A=1.213
    B=28.785*10^3
    C=-8.824*106
    D=0
    E=0
    source:introduction to chemical engineering thermodynamic ,5th edition,J.M .Smith
    .

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  3. [3]
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    عضو


    تاريخ التسجيل: Aug 2007
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    thanks brother

    but the data you gave me is for propane in gas phase

    i need heat capacity for propane in liquid phase

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  4. [4]
    alsane
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    تاريخ التسجيل: Apr 2007
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    alsalam alikom
    you can find data ((( between 85.47 k to 360 k , this will cover liquid and gas phase))) to calculate CP in perry,s hand book at page 2-174
    but you use different equation .
    http://www.4shared.com/network/searc...h&searchmode=2

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  5. [5]
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    عضو


    تاريخ التسجيل: Aug 2007
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    i know that equation my brother

    is there a way to convert it to this form

    Cp = A + BT + CT^2 + DT^3 + ET^4

    because i need to calculate the temperature of a stream that contain propane and other components

    the heat capacities of all the other components are in this form

    Cp = A + BT + CT^2 + DT^3 + ET^4

    so i need Cp of liquid propane to be in the same form

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  6. [6]
    alsane
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    تاريخ التسجيل: Apr 2007
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    اقتباس المشاركة الأصلية كتبت بواسطة بو يعقوب مشاهدة المشاركة
    i know that equation my brother

    is there a way to convert it to this form

    Cp = A + BT + CT^2 + DT^3 + ET^4

    because i need to calculate the temperature of a stream that contain propane and other components

    the heat capacities of all the other components are in this form

    Cp = A + BT + CT^2 + DT^3 + ET^4

    so i need Cp of liquid propane to be in the same form
    they are different equations and different parameters ,because you dont know the temperature its difficult to solve it .
    these books has the data you looking for , search them in your library
    1-
    Solid and liquid heat capacity data collection
    C₁-C₃₃ compounds
    volume 4
    ISBN 10: 3926959819
    2-Thermophysical Properties of Matter

    see this web may help you
    http://webbook.nist.gov/chemistry/fluid/

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