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Drag reducing effects in district heating networksKrope, Andrej ; Krope, Jurij ; Črepinšek, Ljubomir, 1936-2023In this paper the simulation of flow-pressure conditions in the pipe network during the transport of hot water only and hot water with added surfactant additive Dobon G/NaSal for a part of the ... district heating system of the city of Maribor is presented. With small amounts of cationic surfactants in district heating water the turbulence intensity in pipes is decreased and the pressure drop in pipelines is reduced significantly. The aaplication of drag reducing additives in existing systems reduces pumping costs and increases the capacity. New district heating networks can be designed with smaller pipe diameters and pumps with reduced pump power or the maximum economic transmission length can be increased with the application of surfactants. The mathematical model is composed of nonlinear equations for the determination of incompressible fluid flow characteristcs and extra determined empirical equation of friction coefficient in dependence of Reynolds number for the solution of surfactant in hot water.Vir: The sustainable city : urban regeneration and sustainability (Str. 219-227)Vrsta gradiva - prispevek na konferenciLeto - 2000Jezik - angleškiCOBISS.SI-ID - 5297174
Avtor
Krope, Andrej |
Krope, Jurij |
Črepinšek, Ljubomir, 1936-2023
Teme
daljinsko ogrevanje |
vročevodne cevne mreže |
trenje |
upor |
tlačne izgube |
pretočno tlačne razmere |
kationski površinsko aktivni aditivi |
simulacija |
matematični model |
district heating |
hot water networks |
fluid mechanics |
drag |
friction |
pressure losses |
pressure flow conditions |
cationic drag reducing additives |
simulation |
mathematical model
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Krope, Andrej | 16337 |
Krope, Jurij | 03022 |
Črepinšek, Ljubomir, 1936-2023 | 03011 |
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