×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Need help for calculation of Actual Chiller Load in reference to the o

Need help for calculation of Actual Chiller Load in reference to the o

Need help for calculation of Actual Chiller Load in reference to the o

(OP)
Hi Everybody,

I need help in calculating the Actual chiller Load for a room if I am having the following data available with me.

Outside Wet Bulb :- 23, 24, 25, 26 Deg. C (I need to calculate at the given four temp.

Room Set Points :- Temp.= 31 Deg.C     %RH= 45
Running Electrical Load = 1088 KW (Including Machine Load, Solar Load and Lighting Load)

Supply Air Volume = 250000 m3/Hr.

Please send me the working formula also because I need to understand the whole system and also I need to calculate for different Room Set Points also.

I will be very thankful to you.

RE: Need help for calculation of Actual Chiller Load in reference to the o

The outside air wet bulb is indicative of the total heat in the outside air. Its impact will be on the cooling capacity and characteristics of an airhandler coil handling a mixture of return air and outside air.

If infiltration is part of your cooling load then, your cooling system will also have to respond to an increased heat content in that outside air.

For starters, try reading up on pyschrometrics, you could try this FAQ by Yorkman http://www.eng-tips.com/faqs.cfm?fid=1255

Maybe some trane rep is trying to get you to spec his chillers, hit him up for their laaminated pyschrometric chart, has some useful instructions on the back.

You should be consulting with a mechanical colleague. Your question is analogous to a mechanical engineer posting to figure out a capacitor bank needed to improve the power factor of a factory.

Take the "V" out of HVAC and you are left with a HAC(k) job.

RE: Need help for calculation of Actual Chiller Load in reference to the o

Is that school stuff? Sheesh... Guess I should go to school!
At least I understood the pyschometric stuff.... but the mechanical guru thing? HHmmmmm just thinking pyschometric made my head hurt more....

Bubbly one :)

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources