×
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

Cinemas / Theatres HVAC

Cinemas / Theatres HVAC

Cinemas / Theatres HVAC

(OP)
Does anyone know the figure for heat load from projectors.
Also, should I consider heat load from screens, and if so how much?

Thanks a lot.

RE: Cinemas / Theatres HVAC

The unit of measure of heat generation is BTU (British Thermal Units). Often, the projectors BTU value will be included on the spec sheet. If not, use this simple formula to determine the BTU output of a projector: Wattage X 3.42 = BTU
If you are dedicating an air conditioning unit to the projector enclosure, you should rate your conditioner at 120% of the projector BTU rating. As an example, an air conditioner that exchanges 5000 BTU would satisfy a projector that is rated at 4000 BTU.
Note: Do not rely on an HVAC system that is intended to support a particular area of a venue to provide cooling for the projector enclosure. The problem with this approach is that the thermostat for that HVAC system is located in the room, not in the enclosure that houses the projector. Therefore, the projector environment will not receive adequate cooling. Another risk with this approach occurs in the winter, when the thermostat is set to output heat. In that instance, the projector enclosure would be receiving heat, as opposed to cooling.

For more information go here: The unit of measure of heat generation is BTU (British Thermal Units). Often, the projectors BTU value will be included on the spec sheet. If not, use this simple formula to determine the BTU output of a projector: Wattage X 3.42 = BTU
If you are dedicating an air conditioning unit to the projector enclosure, you should rate your conditioner at 120% of the projector BTU rating. As an example, an air conditioner that exchanges 5000 BTU would satisfy a projector that is rated at 4000 BTU.
Note: Do not rely on an HVAC system that is intended to support a particular area of a venue to provide cooling for the projector enclosure. The problem with this approach is that the thermostat for that HVAC system is located in the room, not in the enclosure that houses the projector. Therefore, the projector environment will not receive adequate cooling. Another risk with this approach occurs in the winter, when the thermostat is set to output heat. In that instance, the projector enclosure would be receiving heat, as opposed to cooling. For more information go here:

http://www.digitalprojection.com/content/view/252/114/

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