× Register Login What's New! Contact us
Results 1 to 5 of 5 visibility 1976

Mathematical problems...

  1. #1
    syilla's Avatar Full Member
    brightness_1
    save $ 4 hajj
    star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate
    Join Date
    Apr 2006
    Location
    malaysia
    Gender
    Female
    Religion
    Islam
    Posts
    6,161
    Threads
    276
    Rep Power
    134
    Rep Ratio
    62
    Likes Ratio
    2

    Mathematical problems...

    Report bad ads?

    Picture1.JPG

    Picture3.JPG



    A flash chamber operating 80 degrees C and 500kPa is separating 1000 kg moles/hr of a feed that is 10 mole %ethane, 5 mole %propane, 15 % n-butane, 10 % n-pentane, 12 mole % isopentane, 8 mole %n-hexane, 30 mole %heptane and 10% nonane.
    What are the product compositions and flow rates?

    K1 (ethane) = 11.0
    K2 (propane) = 4.6
    K3 (n-butane) = 1.85
    K4 (n-pentane) = 0.75
    K5 (isopentane) = 0.9
    K6 (n-hexane) = 0.32
    K7 (heptane) = 0.14
    K8 (nonane) = 0.026

    x1 (ethane) = 0.033
    x2 (propane) = 0.029
    x3 (n-butane) = 0.128
    x4 (n-pentane) = 0.123
    x5 (isopentane) = 0.105
    x6 (n-hexane) = 0.093
    x7 (heptane) = 0.365
    x8 (nonane) = 0.125

    y1 (ethane) = 0.358
    y2 (propane) = 0.132
    y3 (n-butane) = 0.236
    y4 (n-pentane) = 0.11
    y5 (isopentane) = 0.079
    y6 (n-hexane) = 0.03
    y7 (heptane) = 0.051
    y8 (nonane) = 0.003

    V/F=0.207
    V=207kg/hr
    L=793kg/hr

    V/F = symbol.JPG

    Teach me how to calculate the vapour fraction...erm... i need you to show me one by one using the Newton Raphson method.

    Sorry...i don't have any kind of programming here :laugh:
    Mathematical problems...

    heart 1 - Mathematical problems...

    25:36 And the true servants of the Most Merciful are those who walk the earth with humility and when the ignorant address them, they respond with words of peace.
    chat Quote

  2. Report bad ads?
  3. #2
    'Abd al-Baari's Avatar Full Member
    brightness_1
    al-Taalib
    star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate
    Join Date
    Aug 2006
    Gender
    Male
    Religion
    Islam
    Posts
    4,923
    Threads
    157
    Rep Power
    145
    Rep Ratio
    138
    Likes Ratio
    3

    Re: Mathematical problems...



    wow..this stuff is way to complicated for me
    (i thought the SAT's i just did were hard but this...phew )

    anyways hope this helps
    http://www.shodor.org/unchem/math/newton/index.html
    Mathematical problems...

    chat Quote

  4. #3
    Gangster No.1's Avatar Full Member
    brightness_1
    Full Member
    star_rate star_rate star_rate star_rate star_rate star_rate
    Join Date
    May 2007
    Location
    DERBY
    Gender
    Male
    Religion
    Islam
    Posts
    232
    Threads
    15
    Rep Power
    104
    Rep Ratio
    27
    Likes Ratio
    0

    Re: Mathematical problems...

    just worked it out, took me 4 hours

    = 37
    chat Quote

  5. #4
    syilla's Avatar Full Member
    brightness_1
    save $ 4 hajj
    star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate
    Join Date
    Apr 2006
    Location
    malaysia
    Gender
    Female
    Religion
    Islam
    Posts
    6,161
    Threads
    276
    Rep Power
    134
    Rep Ratio
    62
    Likes Ratio
    2

    Re: Mathematical problems...

    format_quote Originally Posted by Gangster No.1 View Post
    just worked it out, took me 4 hours

    = 37
    Sorry... the answers are wrong

    V/F=0.207
    V=207kg/hr
    L=793kg/hr

    i also got it 37.

    if only you can give me the summation series equation series...maybe i can check it again... I need in K1 K2 K3 K4 K5 K6 K7 K8 variable...i just don't know how to get rid of the Zi.

    :enough!: (this is me...while calculating it)
    Mathematical problems...

    heart 1 - Mathematical problems...

    25:36 And the true servants of the Most Merciful are those who walk the earth with humility and when the ignorant address them, they respond with words of peace.
    chat Quote

  6. Report bad ads?
  7. #5
    syilla's Avatar Full Member
    brightness_1
    save $ 4 hajj
    star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate star_rate
    Join Date
    Apr 2006
    Location
    malaysia
    Gender
    Female
    Religion
    Islam
    Posts
    6,161
    Threads
    276
    Rep Power
    134
    Rep Ratio
    62
    Likes Ratio
    2

    Re: Mathematical problems...

    format_quote Originally Posted by Abdullah2907 View Post


    wow..this stuff is way to complicated for me
    (i thought the SAT's i just did were hard but this...phew )

    anyways hope this helps
    http://www.shodor.org/unchem/math/newton/index.html
    when it comes to apply it in the real world...you will know how hard math is :blind:

    but i'm not trying to discourage you
    Mathematical problems...

    heart 1 - Mathematical problems...

    25:36 And the true servants of the Most Merciful are those who walk the earth with humility and when the ignorant address them, they respond with words of peace.
    chat Quote


  8. Hide
Hey there! Mathematical problems... Looks like you're enjoying the discussion, but you're not signed up for an account.

When you create an account, we remember exactly what you've read, so you always come right back where you left off. You also get notifications, here and via email, whenever new posts are made. And you can like posts and share your thoughts. Mathematical problems...
Sign Up

Similar Threads

  1. Mathematical Structure?
    By mattqatsi in forum Qur'an
    Replies: 25
    Last Post: 05-28-2010, 07:45 PM
  2. On the Mathematical Impossibility of Evolution
    By IVoIIIoVI in forum Health & Science
    Replies: 7
    Last Post: 12-27-2009, 11:14 PM
  3. Replies: 2
    Last Post: 08-07-2008, 11:45 AM
  4. Mathematical Miracles of the Qur'an
    By InToTheRain in forum Comparative religion
    Replies: 133
    Last Post: 12-28-2007, 10:16 PM
  5. New Mathematical function invented !!!!
    By mbaig in forum Halal Fun
    Replies: 0
    Last Post: 07-14-2006, 09:06 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
create