Povzetek

Generally accepted methods for calculating pressure losses within flat pipelines, as presented in literature and used in praxis, are based on the Reynolds number, which considers the viscosity and density of fluid, internal pipe friction coefficient, pipe geometry, and oil circulation velocity. Such an approach contains serious inconsequentiality. Namely, only nominal values for viscosity and density are considered in the calculation, which differs substantially from real conditions. It often leads to inaccurate calculations of pressure losses. A numerical model has been developed within the work prescribed in the paper, which takes into account actual changes in density and viscosity under the current oil pressure and temperature in order to overcome the above weaknesses of standard calculation procedures. Such an approach is novel and provides new capacity for an accurate pressure drop analysis of advanced hydraulic systems.

Ključne besede

tlačne izgube;ravne cevi;viskoznost;gostota;temperatura;pressure loss;float pipelines;viscosity;density;temeprature;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FS - Fakulteta za strojništvo
Založnik: = Association of Mechanical Engineers and Technicians of Slovenia et al.
UDK: 621.64:532
COBISS: 13242902 Povezava se bo odprla v novem oknu
ISSN: 0039-2480
Matična publikacija: Strojniški vestnik
Št. ogledov: 857
Št. prenosov: 59
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Določanje izgub tlaka v hidravličnih cevovodih ob upoštevanju vpliva temperature in tlaka
Sekundarne ključne besede: tlačne izgube;ravne cevi;viskoznost;gostota;temperatura;
URN: URN:NBN:SI
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 237-243
Letnik: ǂVol. ǂ55
Zvezek: ǂno. ǂ4
Čas izdaje: 2009
ID: 1733512
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