Energy Efficiency and Fatigue Failure on Gears and Bearings for Processing Rebar Steel

Jesus Gabriel Garcia, University of Texas at El Paso

Abstract

Steel industry is a major emitter of air pollutants, a leading industrial consumer of water, a minor source of contaminated liquids, a massive producer of solid waste, and a significant source of CO2. The objective on this thesis work is to minimize the greenhouse gas emissions when processing steel. Gears and bearings were evaluated based on their performance when exposed to cyclic stresses. The importance for having a proper set up on rolling mills to increase efficiency for processing rebar steel has been detailed on paper. In contrast, mechanical vibration has been measured on gears and bearings to determine efficiency and to avoid fatigue failure on components. These components are used during hot rolling to plastically deform steel billets and are exposed to cyclic and variable load stresses. It was determined the total amount of energy loss in the form of mechanical vibration, and it was concluded that materials selected on gears and bearings complied with design criteria by failing progressively and not suddenly. Consequently, it was also concluded that energy efficiency on reheating processing is highly affected by fatigue failure on any of the components within the hot rolling processing.

Subject Area

Energy|Engineering|Sustainability

Recommended Citation

Garcia, Jesus Gabriel, "Energy Efficiency and Fatigue Failure on Gears and Bearings for Processing Rebar Steel" (2019). ETD Collection for University of Texas, El Paso. AAI22617488.
https://digitalcommons.utep.edu/dissertations/AAI22617488

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