20.500.12556/DKUM-72877 Merilna proga za merjenje obratovalnih karakteristik dveh črpalk diplomsko delo Experiment setup for measurement of operating characteristics of two pumps V nalogi je bila vzpostavljena merilna proga za merjenje obratovalnih karakteristik dveh črpalk, s pomočjo ultrazvočnega merilnika pretoka in mehanskih merilnikov tlaka. Na novi merilni progi z dvema črpalkama, na kateri se lahko s pomočjo ventilov vzpostavita zaporedno ali vzporedno delujoči črpalki, smo namestili ultrazvočni merilnik pretoka, s katerim sem meril pretok vode in z dušenjem s pomočjo krogličnega ventila nastavljal pretok v cevi, s katerim sem meril pretok pri različnih tlakih. Naloga je pokazala, da se čas merjenja in s tem prikaz obratovalnih karakteristik črpalk v preglednicah, neprimerno zmanjša v primerjavi odčitavanjem in preračunavanjem iz vodomera na izstopu iz cevi. In this paper an experimental setup of two centrifugal pumps was set to measure operating characteristics of two pumps with an ultrasonic flowmeter. With the help of valves, pumps can be set to parallel or operating in series. On this experimental setup an ultrasonic flowmeter was placed, with which water flow was measured, with the help of ball valve I was damping, so that the pressure in the tube can rise and the flow could be measured at different pressures in the tube. The assignment has shown the time measuring the flow and the operating characteristics of pumps was significantly shorter. Vodne črpalke obratovalne karakteristike merilni sistem Water pump operating characteristic measuring system true true false [N. Malek] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-12-04 16:52:49 2019-01-03 12:04:08 2022-08-01 23:35:42 2019-08-06 03:22:18 2018 0 Maribor 0 Maribor XI, 36 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.57:621.65(043.2) 22243606 URN:SI:UM:DK:R0OZDZ2Q VS_Malek_Nino_2019.pdf VS_Malek_Nino_2019.pdf 1 8BA40609D82BE0C1E1BFB7C5B664A302 79c32465164b28e7b744cedc46760a89631836c4f715422133a329930b586731 8ec8c0a1-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/099f3817-4558-427e-8bc3-88fa7810ad55 https://dk.um.si/Dokument.php?lang=slv&id=132023 Fakulteta za strojništvo 0 0 0