[Bldg-sim] Occupancy loads of a typical American typical family in a small container house

Joe Huang yjhuang at whiteboxtechnologies.com
Tue Jul 8 18:06:08 PDT 2014

If you're simulating such a small house (~ 400 ft2), you need to scale appropriately the 
occupancy loads from other studies.  I wouldn't worry about differences in the hourly 
profiles, because those would be vary all over the place anyway, but daily totals will 
definitely differ from those of a typical single-family detached house. Lighting may scale 
with floor area, but not occupant heat-gain, while appliance internal gains will be 
somewhere in the middle (smaller appliances and probably fewer).  When I was working at 
LBNL, I used a bottoms-up method to derive an average internal load for houses by adding 
up the type of appliance x daily heat gain x percent heat gain in space.  The advantage of 
such a method is that it allows you to scale back the size or number of appliances for the 
house that you're modeling.  That work was done back in the early 1980's, so it could use 
a substantial upgrade, but IMHO the methodology is still valid.   If anyone's interested, 
send me an e-mail and I'll see if I can dig out and scan the relevant pages of the 
Technical Support Document.


Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
yjhuang at whiteboxtechnologies.com
http://weather.whiteboxtechnologies.com for simulation-ready weather data
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"

On 7/2/2014 2:12 PM, Atila Rios wrote:
> Hello all,
> I am simulating a small container house (22'x 18'x 8', two bedrooms, one bathroom, one 
> living room and one kitchen) for a single western life-style family of 2 adults and 2 
> children. I am already done with the envelope and HVAC but now I am not sure how to 
> proceed in applying typical occupancy loads in the house, only electric appliances by 
> the way.
> Does anyone know how can I build a typical hourly usage of this particular family in 
> this particular small container house? I need a 24h-usage curve and 8760h-annual hourly 
> usage data. With all these patterns, I could customize options and apply in the softwares.
> This is kinda a lot to ask but I just wanted any ideas and a help please to know how and 
> where to start. Anything is welcome.
> Thank you.
> Best,
> Atila
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