×
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

Residential Heat Load - please help..

Residential Heat Load - please help..

Residential Heat Load - please help..

(OP)
Hi everyone,
I am currently running a heat load calculation on a residential apartment.
I am having the biggest trouble working out the heat that will come off the kitchen equipment. Can anyone please help me?
What Btu output to I allow for the following;
Range
Dishwasher
Coffee maker
Microwave
Refrigerator
I know that I need to get a book on this, but I am not sure what is the best to purchase. I have an old Ashrae book, but I feel that it doesn't cover things like the residential equipment I have listed above. I have a fair bit of commercial equipment listed in the book.
Any help would be so greatly appreciated.
Thanks,

RE: Residential Heat Load - please help..

(OP)
I have just read that for residential, 1,200 BTUH for the kitchen is good enough.
Is this true?

RE: Residential Heat Load - please help..

Detter1
If you can determine the total wattage used by these appliences then multiply by 3.14 to get total btu's
watts x 3.14 BTU=total heat

RE: Residential Heat Load - please help..

(OP)
Thanks for the reply...
My problem is gaining any of that type of info. I was aware of the conversion factor, but am finding it very hard to get that sort of information (Watts or BTUH).
Am I looking in the wrong places?
Thanks,

RE: Residential Heat Load - please help..

(OP)
Thanks imok2... That was exactly what I was after.
Thanks again...

RE: Residential Heat Load - please help..

Those loads are typically ignored in residential applications when sizing air conditioning units. They are not used at long durations or at regular times so they are ignored to make sure the AC unit is not oversized. If the unit is oversized, it will not properly dehumidify the space because it will not operate long enough to effect continuous dehumidification.

RE: Residential Heat Load - please help..

(OP)
Thanks lilliput1,
So what do you suggest for load factors then? I was told 1,200 Btuh total for a kitchen. Is this correct?

RE: Residential Heat Load - please help..

According to ASHRAE Fundamentals 1997 Chapter 27, Page 27.4 "Based on contemporary living conditions in single family houses, a sensible load of 1600 Btu/hr should be divided between the kitchen and/or laundry and the adjoining room or rooms. For multifamily units, the sensible heat gain should be about 1200 Btu/hr. These values assume that the cooking range & clothes dryer are vented. Further allowance should be considered when unusual lighting intensities, computers or other equipment is present."

RE: Residential Heat Load - please help..

(OP)
Thank you lilliput1.

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