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Form for approximate calculation of cooling load

Approximate cooling load of single rooms

An exact calculation according to the current VDI 2078 must be carried out separately and will not be replaced under any circumstances. The suggestions and calculations are based on average values; in case of deviating conditions or special features on site, the calculation must be carried out differently!


Please note, that the calculation cannot be used for rooms with ceiling heights of higher than 3,50 m.





Thermal ingress through vertical transparent surfaces with direct sun radiation (e.g. windows and outside doors)

Cardinal point Surface Sun screen Cooling load  
 m² = 0 W/m²
0
W
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  Surface / number Multiplier Cooling load  
Maximum value for direct radiation Maximum value for direct radiation  
0
W
Diffuse sunlight Diffuse sunlight  m² 25 W/m²
0
W
Windows in roof areas  m² = 0 W/m²
0
W
Transmission through external wall north Transmission through external wall north  m² 4 W/m²
0
W
Transmission through remaining external walls Transmission through remaining external walls  m² 12 W/m²
0
W
Transmission through internal walls Transmission through internal walls
 m² 8 W/m²
0
W
Ceiling /roof Ceiling /roof  m² = 0 W/m²
0
W
Floor non-air conditioned Floor non-air conditioned  m² 9 W/m²
0
W
Number of people  P = 0 W/Pers.
0
W
Laptop / PC work stations  each 150 W/each
0
W
Printer  each 50 W/Printer
0
W
Lighting Lighting  m²
Light sources:
Lighting:
= 0 W/m²
0
W
Other cooling loads  W

Total cooling load  
0
W