20.500.12556/DKUM-53882 Determination of pressure losses in hydraulic pipeline systems by considering temperature and pressure Določanje izgub tlaka v hidravličnih cevovodih ob upoštevanju vpliva temperature in tlaka 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. tlačne izgube ravne cevi viskoznost gostota temperatura pressure loss float pipelines viscosity density temeprature true false false = Association of Mechanical Engineers and Technicians of Slovenia et al. Angleški jezik Angleški jezik Delo ni kategorizirano 2015-08-11 01:18:31 2015-08-11 01:18:32 2022-06-04 03:09:25 2024-01-03 03:23:11 2009 0 0 str. 237-243 no. 4 Vol. 55 2009 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.64:532 762116 13242902 0039-2480 URN:SI:UM:DK:TSNU7BHG http://www.sv-jme.eu/scripts/download.php?file=/data/upload/2009/SV-4-09/Delovna/4___Savic.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=78695 Fakulteta za strojništvo 0 0 0