Hi,
I am using design database for heatloss calculations for a student accommodation. I am querying the results of the heatloss calculations as it returning results of between 30-40 w/m2, when we would expect to see a heatloss of around 60-70 w/m2.
Below is the data that I am using.
Wall Height 2.7m
Partition Height 2.4m
Ceiling Void 0.2 m
Window 1m2
Building set in Edinburgh with design temp of -5
I am still awaiting U-values from the architect but as a default I have been using the maximum u-values for building elements from section 6.
Wall 0.27 w/m2K
Floor 0.22 w/m2k
Roof 0.2 w/m2k
Windows,doors, windows and roof lights 2.0 w/m2k.
The floor area of a typical room is 15m2 and the building is 2 storeys high, with exposed floors and roofs set up. Does 30-40 w/m2 appropriate using the values that I have used? I can submit the model if required.
Thanks in advance,
Andrew
Hi Andrew,
I would really need to see the project and specific room in question to be able to look into this for you - I would appreciate if you could send it through.
To do so, please exit Hevacomp, zip the project folder and either attach it to this forum thread, or upload privately as describedhere.
Alternatively, if you wish to discuss your project in a more private manner then you can log a Service Request and attach the project file, via the link here.
Shane Regan | Principle Building Performance Support Engineer
Getting the project is proving more difficult than anticipated! No problem Andrew, I am looking into your contact details on our system now and will send you an email shortly.