×
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

Training centre mechanical room

Training centre mechanical room

Training centre mechanical room

(OP)
I WOULD LIKE SOME HELP REGARDING THE DESIGN OF A TRAINING FACILITY IN SAUDI ARABIA. THE FACILITY HAS A MECHANICAL A/C ROOM CONSISTING OF 5 NOS. AIR HANDLING UNITS (AHU), CHILLED WATER TYPE.
EACH AHU IS OPERATING CONTINUOUSLY AND INDEPENDENTLY SERVING A PARTICULAR OCCUPIED ROOMS AND IS CONTROLLED BY AN INDIVIDUAL THERMOSTAT
THE RETURN AIR SYSTEM OF THESE AIR HANDLING UNITS (ALL 5 OF THEM) IS COMMON USING AN IN LINE RETURN AIR FAN AS A MEANS OF RETURNING THE SUPPLIED AIR FROM THE OCCUPIED ROOM SPACES TO THE MECHANICAL ROOM.

1.HOW DO U CONTROL THE OPERATION OF THE COMMON IN-LINE RETURN AIR FAN IN RELATION TO THE OPERATION OF THE 5 NOS. AHU?

2.SUPPOSING ONE OR TWO OF THE AHUS' ARE SHUTDOWN , WOULD YOU CONSIDER A RELIEF AIR DAMPER TO BE INSTALLED AT THE MECHANICAL ROOM TO AVOID THE OVER AIR PRESSURE OF THIS ROOM.

3. THE MECHANICAL ROOM IN THIS CASE WAS BEING UTILIZED AS A COMMON MIXING BOX. HOW DO U SIZE THE FRESH AIR LOUVRE FOR MAKE-UP AIR SYSTEM? CAN IT BE AUTOMATICALLY OPERATED?

LOOKING FORWARD TO RESPONSES TO THIS QUERY.

thanx

RE: Training centre mechanical room

Hello

you can solve the first proplem by using a fan which driven by a variable speed frequency driver.
This can reduce the fan speed when the air pressure in the return duct increased.
i beleive both the first and the second problem could be solved by this technique.

regards,

Khaled Muhsen

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! Already a Member? Login


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close