Results 1 to 1 of 1
  1. #1
    kamikazi929's Avatar
    kamikazi929 Guest

    r134a question, calculating heat lost by refrigerant

    Hi all im new to this forum, so please excuse me if this is a newbie question. I have been at this for hours, basically I have a question, I know the correct formula to use, but dont know how to apply it. here goes:

    in an R134a refrigeration plant, the refrigerant leaves the compressor at a pressure of 8.87 bar and at a temperature of 45c.if the mass flow of the refrigerant is 10.2kg/min, and the mass flow of condenser cooling water is 43kg/min, find:

    i) the heat lost by the refrigerant in the condenser

    now i know I have to use the formula

    mass flow rate of refrigerant x (h2 - h3)

    I begin by making a basic table of properties as below , but im not sure where to go from here.

    any help to pointin me in the right direction would be helpful

    thanks all
    Attached Images Attached Images

Similar Threads

  1. CARE refigerants by BOC
    By dogma in forum Refrigerants
    Replies: 8
    Last Post: 23-03-2010, 12:39 PM
  2. Capacity control
    By sparrow in forum Training
    Replies: 44
    Last Post: 18-01-2010, 07:49 PM
  3. frostles heat pump
    By Lc_shi in forum New Technologies
    Replies: 27
    Last Post: 31-03-2008, 07:53 AM
  4. fun quiz
    By Brian23 in forum New to RE
    Replies: 6
    Last Post: 02-10-2007, 10:18 PM
  5. R134a <-> liquid heat exchanger design
    By DaBit in forum Technical Speculations
    Replies: 19
    Last Post: 10-05-2002, 08:36 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