×
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

Watts to BTU calculation

Watts to BTU calculation

Watts to BTU calculation

(OP)
Looking for the calculation which converts watts per sqare foot, to BTU then to refrigeration tonnage. Any help would appreciated.

RE: Watts to BTU calculation

1 watt per square foot is approximately 3.14 btu per square foot

RE: Watts to BTU calculation

(OP)
Thanks!!

RE: Watts to BTU calculation

please note that conversation factor is 3.44 (not 3.14)

RE: Watts to BTU calculation

Isn't 3.413 Unless my Teachers are wrong... Which is entirely possible.

RE: Watts to BTU calculation

A very good conversion program that is free to use and distribute:

http://www.joshmadison.com/software/

lists the coversion as 1 watt-hour = 3.412142 BTU.

RE: Watts to BTU calculation

Gentlemen you are forgetting the basics here !!!

You can not convert watts/ft2 to BTU because you can't compare power/area with energy

Steven van Els
SAvanEls@cq-link.sr

RE: Watts to BTU calculation

In the UK we have gone through this conversion thing already, so here is typical conversions used

Power  

kW -> BTU/hr(x 3412)
Tons Refrigeration -> kW (x 3.517)

Intensity of heat flow rate

BTU/hr square foot -> W/square metre (x 3.155)

Typically for budget cooling load estimating we use 140 W/square metre.
 
 

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