INSTALPROJEKT katalog techniczny 2020

EXAMPLE I
RADIATOR HEAT OUTPUT RECALCULATING FOR GIVEN TEMPERATURES
Radiator model: GL-30/90
Normal output for ∆T = 50K (75/65/20 °C): 400 W
Heating system temperature parameters:
Feed water temperature t z = 65 °C
Return water temperature t p = 55 °C
Ambient temperature to = 18 °C
from the table:
f 1,25 = 0,804
czyli Φ = 400 x 0,804 ≈ 321 W - radiator heat output at temperatures 65/55/18°C.
EXAMPLE II
LOOKING FOR APPROPRIATE RADIATOR AT GIVEN TEMPERATURE PARAMETERS
Parameters:
Feed water temperature t z = 85 °C
Return water temperature t p = 70°C
Ambient temperature to = 20 °C
Required heat output for temperature parameters (85/70/20°C): 550 W
from the table:
f 1,25 = 1,191
Φ n = 550 : 1,191 ≈ 462 W - Normal output (75/65/20 °C) of the desired radiator
Next from the technical data table chose a radiator whose normal output (75/65/20 °C) is as similar to the calculated value as possible.
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