heat load calculation formula...anyone could share?

[fernan]

dear friends,

I would like to know the heat load calculation formula for the remaining heat load factors i am considering in a Machinery room with 3 packing machines rating 4.5kw each, the dimensions of room are L= 5m ; W=10m ; H=5m? I calculated already the other factors namely occupants heat load, lighting heat load. What to be consider also is the 2 doors which are 2m x 2m size. TY for whatever useful help you can relay.

regards,
fernan

[Brian_UK]

Hi Fernan

Not complete data but maybe some help, see page 30

http://www.bre.co.uk/filelibrary/pdf/rpts/BR_443_%282006_Edition%29.pdf

[frank]

All you need is the building fabric transmission load. To calculate this you need to know the indoor temperature, the outdoor temperature and fabric U values of the walls, floor and roof

You also need to know the ventilation infiltration rate