Razvoj ispitne opreme za verifikaciju sustava hlađenja baterijskih ćelija promjenom faze u prisilnom toku

master's thesis

• Title (english): Development of automotive battery testing jig for verification of phase change cooling loop with forced flow
• Author: Filip Medić
• Mentor: Stanko Škec (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2020-07-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Posljednjih godina događa se trend povećanja proizvodnje električnih automobila zbog potrebe za smanjenjem ugljičnog otiska te zbog velike pogonske sile koja se može postići elektromotorom. Glavna prepreka u implementaciji električnih automobila je količina energije koja se može pohraniti u baterijskom sustavu. U tom pogledu Li-ion ćelije daju najbolje rezultate, ali se tokom rada zagrijavaju pri čemu se događaju neželjeni efekti. Oni se umanjuju hlađenjem ćelija. Dosad korišteni sustavi koriste principe hlađenja: zrakom, rashladnom pločom i direktnim kontaktom s kapljevinom. Svi ti principi imaju nedostatke vezane uz efikasnost, temperaturnu jednakost i granicu odvedenog toplinskog toka. Stoga je u ovom diplomskom radu, u suradnji sa tvrtkom Rimac automobili, napravljeno je istraživanje i razvoj ispitne opreme za verifikaciju nove tehnologiju hlađenja baterijskih ćelija. Na osnovu prikupljenih informacija o tehnologijama baziranim na principu odvođenja topline promjenom faze formirani su koncepti i napravljena je detaljna razrada konstrukcije.

Abstract (english)

A growing number of electric cars is produced every year. This trend is driven by the need to reduce carbon print from personal vehicles. Also, sports electric cars started to appear, mainly because of high torque that can be exerted by the electromotor. The main problem in electric car implementation is energy storage limitation. In that regard Li-ion cells give the best results. But, during the process of charge and discharge cycles they release a lot of heat that produces unwanted side effects. The side effects can be managed with battery thermal management systems (BTMS). BTMS that are already being used in car industry are air cooling, cold plate cooling and immersion cooling. All those principles have disadvantages regarding peak heat flux, temperature uniformity and efficiency. In this thesis, to overcome those disadvantages, test equipment for new BTMS technology is developed, in collaboration with company Rimac automobili.

• Keywords: Električni automobili; Li-ion ćelije; principi hlađenja; Rimac automobili
• Keywords (english): Electric cars; Li-ion cells; battery thermal managment systems; Rimac automobili
• Language: croatian
• URN:NBN: urn:nbn:hr:235:795182
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2025-07-08
• Created on: 2020-07-08 19:53:36