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Contenuto archiviato il 2022-12-27

REDUCTION OF FRICTION LOSSES AND PUMPING POWER IN DISTRICT HEATING BY TENSIDE ADDITIVES TO THE CIRCULATING WATER .

Obiettivo

The aim of this demonstration project is to put to practical test, in a pipeline of working size, the thermal and resistance reducing properties found to be possessed by friction inhibitors (surfactants) in the laboratory. The results are intended to determine the practical potential of micellar friction inhibiters.

The project will use an existing 450 mm bore pipeline, 2400 m. in length, connecting the fenne thermal power station in Volklingen with a central heating station. The heat transfer water is pumped by two rotary pumps with a maximum capacity of 2000 Cu.M/H. Heat is introduced by three independantly controlled heat exchangers at the power station.
The effect of the friction-inhibiting additives will be determined by fitting temperature and differential pressure recorders and an inductive flow meter (diaphragm meters will not perform with friction inhibitors in the water). Pressure measurements will be taken at elbows and U-bends to obtain information on how the additives affect behaviour in these sections of the pipe.
The use of surfactants will enable existing remote heating systems to convey a greater quantity of thermal energy through an existing network or to convey the same amount with reduced pumping costs. In new installations they will reduce the capital costs by enabling smaller pipes to be used for a given flow rate.

Argomento(i)

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Invito a presentare proposte

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Meccanismo di finanziamento

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Coordinatore

FERNWAERME-VERBUNG SAAR GMBH
Contributo UE
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Indirizzo
BISMARCKSTRABE 11
6620 VÖLKLINGEN
Germania

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Costo totale
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