Vpliv tlačnih pulziranj na segrevanje hidravličnega olja

Stražiščar, Martin (author), Majdič, Franc (mentor), Bombač, Andrej (co-mentor)

Raziskovali smo kako tlačni udari vplivajo na segrevanje hidravličnega olja. To smo preizkusili z eksperimentom, kjer smo v cevi, ki je bila na koncu zaprta nihajoče spreminjali tlak s frekvencami od 0,5 do 40 Hz pri sistemskih tlakih 100, 200 in 300 bar. Te meritve so bile opravljene na ceveh dolžine 2 m in 3 m. Ugotovili smo, da se olje najbolj segreva pri višjih frekvencah ter višjih tlakih. Poleg tega pa smo opazili, da se cev in olje najbolj segrevata na sredini.

• Language: Slovenian
• Keywords: hidravlično olje, tlačni udari, sistemski tlak, frekvenca udarov, segrevanje olja
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [M. Stražiščar]
• Year: 2021
• Number of pages: XII, 24 f., [6] str.
• PID: 20.500.12556/RUL-130352
• UDC: 532.58:621.22:661.177(043.2)
• COBISS.SI-ID: 81607427
• Publication date in RUL: 14.09.2021

Secondary language

• Language: English
• Title: Influence of pressure oscillations on hydraulic oil heating

Abstract

We investigated the influence of pressure oscillations on the heating of hydraulic oil. The investigation was carried out by means of experiment in which we sent pressure oscillations into a pipe closed at one end. The frequencies of the oscillations were between 0.5 and 40 Hz, at system pressures of 100, 200 and 300 bar. These measurements were performed on a pipe of 2 and 3 m lenght. We found that the heating of the oil was most pronounced at higher frequencies and pressures. We also found that the pipe and the oil heated up the most in the middle of the pipe.

• Keywords: hydraulic oil, pressure oscillations, system pressure, oscillations frequency, oil heating