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Light-Weight Turbocharger Turbine Wheel Challenge

Posted October 11, 2019

Many new engine concepts include a turbocharger to help increase thermal efficiency and increase power density (horse power/liter displacement). The turbine and compressor wheels in the turbocharger rotate at speeds over 100,000 revolutions per minute (rpm). The limitations of current turbine designs are largely driven by materials and manufacturing requirements. The mass of these rotating components in the turbocharger can have a negative impact on the efficiency and transient response of the turbocharger.

Image credit: Siemens Pressebild/Wikipedia/CC BY-SA 3.0

The objective of this challenge is to design a light-weight turbocharger turbine wheel that can meet or exceed the performance of an Inconel automotive component at temperature and have the ability to be scaled up to larger turbocharger applications. In order to optimize the efficiency and transient response of these rotating components, the new design should take advantage of innovative manufacturing techniques (such as additive manufacturing) and new material concepts.

Submission to this Challenge must be received by 10 a.m. EET Nov. 4, 2019.

Source: Herox

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