Ekonomska upravičenost zamenjave pnevmatskih valjev z električnimi aktuatorji

Krnc, Žan (author), Berlec, Tomaž (mentor)

V magistrskem delu je predstavljen problem ekonomskega vrednotenja zamenjave pnevmatskih valjev z električnimi aktuatorji, ki se je pojavil v podjetju, ki deluje na področju industrijske avtomatizacije. Namen naloge je bil preveriti smotrnost investicije v stroj gnan z električnimi aktuatorji ob predpostavki, da obseg proizvodnje ostane nespremenjen. Štiri investicijske alternative so primerjane glede na trenutno stanje, ko stroj poganjajo le pnevmatski valji. Na podlagi najpogosteje uporabljenih ekonomskih kazalnikov je z uporabo večkriterijskih odločitvenih metod predstavljena metodologija za izbiro najustreznejše investicijske alternative. Najbolje ocenjena je različica stroja, ki ga poganja 13 pnevmatskih valjev in 3 električni aktuatorji. Stroj, ki ga poganjajo izključno električni aktuatorji ni ekonomsko upravičen.

• Language: Slovenian
• Keywords: ekonomsko vrednotenje investicij, večkriterijske odločitvene metode, pnevmatski valji, električni aktuatorji
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [Ž. Krnc]
• Year: 2023
• Number of pages: XXIV, 71 str.
• PID: 20.500.12556/RUL-145017
• UDC: 621.6:621.3:658.5(043.2)
• COBISS.SI-ID: 147913475
• Publication date in RUL: 30.03.2023

Secondary language

• Language: English
• Title: Economic justification of replacing pneumatic cylinders with electric actuators

Abstract

The master thesis presents the problem of economic evaluation of the replacement of pneumatic cylinders with electric actuators, which arose in a company operating in the field of industrial automation. The purpose of the task was to check the feasibility of investing in a machine driven by electric actuators, assuming that the volume of production remains unchanged. Four investment alternatives are compared against the current situation, when the machine is driven only by pneumatic cylinders. Based on the most frequently used economic indicators, a methodology for choosing the most appropriate investment alternative is presented using multi-criteria decision making methods. The best rated version of the machine is driven by 13 pneumatic cylinders and 3 electric actuators. A machine driven only by electric actuators is not economically justified.

• Keywords: economic investment appraisal, multi-criteria decision analysis methods, pneumatic cylinders, electric actuators