Results 1 to 4 of 4
  1. #1
    Paul-M's Avatar
    Paul-M Guest

    Liquid Return & Discharge Pipework Selection and Design



    Could anyone offer me some advice please?

    I'm about to begin an installation where the plant room containing the compressor receiver set is on a first floor approximately 4m above the condenser situated outside at ground level. Should I be allowing for any special considerations with the pipe sizing and the actual design of the discharge and liquid return pipework because of their relative positions, maybe keeping the liquid return velocity on the high side because of the 4m lift?

    Any advice received would be most welcome



  2. #2
    Join Date
    Mar 2006
    Location
    Merate (LC) - Italy
    Age
    52
    Posts
    2,554
    Rep Power
    24

    Re: Liquid Return & Discharge Pipework Selection and Design

    Bad design. I would put the receiver at ground level or invert the condenser and the receiver relative positions.
    Anyway, ASHRAE refrigeration fundamentals (2005) has a chapter dedicated to solve this type of problems.

  3. #3
    Paul-M's Avatar
    Paul-M Guest

    Re: Liquid Return & Discharge Pipework Selection and Design

    That's potentially a problem also; unfortunately I do not have access to the ASRAE manual, where online can I read the relevant chapter?

  4. #4
    Join Date
    Mar 2006
    Location
    Merate (LC) - Italy
    Age
    52
    Posts
    2,554
    Rep Power
    24

    Re: Liquid Return & Discharge Pipework Selection and Design

    Quote Originally Posted by Paul-M View Post
    That's potentially a problem also; unfortunately I do not have access to the ASRAE manual, where online can I read the relevant chapter?
    You can't, it's protected by copyright, but if you are familiar with "the bay", you'll find it there.
    I checked my copy, and in no chapter the receiver is placed above the condenser, therefore I'm prone to believe that your layout is not going to work.

Similar Threads

  1. Design Return Gas Temperature (RGT):
    By gwapa in forum Fundamentals
    Replies: 2
    Last Post: 15-09-2009, 08:06 PM
  2. Design Return Gas Temperature (RGT):
    By gwapa in forum Commercial
    Replies: 0
    Last Post: 13-09-2009, 01:44 PM

Posting Permissions

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