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Calculation of required heating performance

Please select the Print preview prior to data entry if you wish to print the results of the calculation.

1. Enclosure dimensions
H= mm
W= mm
D= mm
2. Enclosure position
a)  
b)  
c)  
d)  
e)  
f)  
g)  
h)  
i)  
j)  
k)  
l)  
Enclosure surface area: m2
3. Location of installation
4. Enclosure material
Heat transfer coefficient W/m2K
5. Temperatur differential

Variations in temperature (e.g. day-night, summer-winter, climate zones) have to be taken into account. Please enter the maximum temperature differential or determine the temperature differential in the enclosure based on the lowest expected ambient temperature (Tu) and the enclosure interior temperature that is desired or that which would be considered the minimum allowable (Ti):

Lowest ambient temperature °C
Desired interior temperature °C
Temperature differential K
6. Continuous stray power

The stray power (= self-warming) of all installed components (e.g. transformers, relays, semiconductors, bus bars etc.) has to be taken into account if components are operated continuously.

Continuous stray power W
7. Calculation
Heat transfer coefficient W/m2K
Required heating performance W

 

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STEGO Norden AB

Box 7225
Linjalvägen 6B
18713 Täby
Sverige

Tel. +46 (0)8 545 86160
Fax +46 (0)8 545 86161

E-Mail: info(at)stegonorden.se

 

update:21. October 2009 14:16

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