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Development of Brake Cooling
Halmstad University, School of Business, Engineering and Science.
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Utveckling av bromskylning (Swedish)
Abstract [en]

Sports cars need efficient brake cooling as they shall perform well during hard driving conditions, like for example race track driving. Most sports cars use ducts that capture ambient airflow and directs this flow over the brakes to improve the cooling. This project was conducted in cooperation with Koenigsegg Automotive AB and aims to develop more efficient brake cooling ducts for their cars.  Computational Fluid Dynamics was used to analyse the convective cooling of the brake disc and the pads. First was the cooling with the previously used ducts analysed in order to establish a reference.  Then new concepts were created, analysed and developed in an iterative process.  A design is proposed, which have the inlet in the centre of the wheel axle and that directs the air through radial channels to the brake disc. The simulations indicate that the proposed design results in 14% higher heat transfer rate compared to the previously used cooling solution.   In addition to the cooling ducts, some passive cooling devices were also simulated. Simulations with these in combination with the proposed design, indicate up to 25% increase in heat transfer rate, but this cannot be fully confirmed due to limitations in the simulation model.

Abstract [sv]

Sportbilar behöver effektiv bromskylning eftersom de ska prestera väl under hårda körförhållanden, som till exempel bankörning. De flesta sportbilar använder kanaler som fångar omgivande luftflöde och riktar detta flöde över bromsarna för att förbättra kylningen.  Detta projekt genomfördes i samarbete med Koenigsegg Automotive AB och syftar till att utveckla effektivare bromskylkanaler till deras bilar. Computational Fluid Dynamics användes för att analysera den konvektiva kylningen av bromsskivan och bromsbeläggen.  Först analyserades kylningen med den tidigare använda bromskylkanalen i syfte att skapa en referens. Sedan skapades nya koncept som analyserades och utvecklades i en iterativ process.  En konstruktion föreslås, som har inloppet i centrum av hjulaxeln och som sedan styr luften genom radiella kanaler till bromsskivan. Simuleringarna indikerar att den föreslagna konstruktionen resulterar i 14% högre värmeöverföringshastighet än den tidigare använda bromskylningslösningen.  Förutom kylkanalerna har några passiva kylanordningar också simulerats.  Simuleringar med dessa i kombination med den föreslagna konstruktionen, indikerar upp till 25% ökning av värmeöverföringshastigheten, men detta kan inte helt bekräftas på grund av begränsningar i den använda simuleringsmodellen.

Place, publisher, year, edition, pages
2016. , 62 p.
Keyword [en]
mechanical, engineering, CFD, CATIA, CAD, Koenigsegg, Halmstad, university, heat, transfer, cooling, flow, analysis, bachelor, thesis, brake, disc, racing
Keyword [sv]
maskiningenjör, utveckling, konstruktion, bromskylning, CFD, CATIA, CAD, Koenigsegg, datorstödd, produktframtagning, högskolan, Halmstad, värmeöverföring, kylning, flödessimulering, examensarbete, exjobb, examensjobb, skivbroms, skiva, bromsar
National Category
Vehicle Engineering Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:hh:diva-31225OAI: oai:DiVA.org:hh-31225DiVA: diva2:938489
External cooperation
Koenigsegg Automotive AB
Subject / course
Mechanical Engineering
Supervisors
Examiners
Available from: 2016-07-08 Created: 2016-06-16 Last updated: 2016-07-08Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
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  • nn-NB
  • sv-SE
  • Other locale
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Output format
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