21 Heat flow measurement
FLUXUS F60* 21.5 Two independent heat flow measurements
215
UMFLUXUS_F60xV5-0EN, 2017-10-16
21.5 Two independent heat flow measurements
If the transmitter has 2 measuring channels and 4 temperature inputs for each measuring
channel, it is possible to conduct 2 independent heat flow measurements at the same
time. Tab. 21.1 shows a typical configuration of the temperature inputs.
21.6 Steam in inlet
If the supply pressure is constant or can be measured with an additional input, the heat
flow can be determined for a fluid that is vaporous in the supply line.
The state of aggregation of the fluid is determined by means of the supply pressure and
the supply temperature.
The steam coefficient of water and ammonia are stored in the internal database of the
transmitter. The steam coefficient of other fluids have to be entered with the program
FluxSubstanceLoader.
Tab. 21.1: Configuration of the temperature inputs in case of 2 independent heat flow measurements
temperature input
measuring channel A supply temperature T1 or constant value
return temperature T2 or constant value
heat quantity measurement possible
measuring channel B supply temperature T3 or constant value
return temperature T4 or constant value
heat quantity measurement possible
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