Project Director

Shi, Yunye

Department Examiner

Margraves, Charles

Department

Dept. of Mechanical Engineering

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

The objective of this study was to evaluate the operating parameters impacts on the performance of a gasification-based waste tire integrated energy conversion system. In this system, the waste tires are put into a downdraft gasifier that is providing fuel for a solid oxide fuel cell (SOFC). The system is evaluated by the syngas production, power generation, and overall efficiency under various operating conditions. A hybrid 1-D model was adopted to perform a parametric study of the tire gasification and calculations were done to estimate the integrated system power generation and overall efficiency using MATLAB. Three parameters were studied: the moisture content of the waste tires, mixture ratio of wood and waste tire, and equivalence ratio (ER). At the varying levels of these parameters, the efficiency and power output of the system was determined. Based on the efficiency of the system, an equivalence ratio of 0.25, 30% moisture content, and 40% mixture ratio were determined to be optimal. Applying these conditions simultaneously to the SOFC simulation resulted in an efficiency of 33% and power output of 1.06(10^8) W. An ER of 0.25 increased the efficiency by 10% in all cases. The results show that tire is suitable to be used in a gasification based SOFC integrated system.

Acknowledgments

I would first like to thank Dr. Yunye Shi for serving as my project advisor and allowing me to continue her work on this project. I could not have asked for a more dedicated and motivating professor. I cannot express enough gratitude for your time and commitment. I want to give special thanks to Dr. Margraves for your important suggestions and ideas throughout the development of this project. Thank you for challenging me and pushing me to grow in my learning. I would also like to thank my parents, Robert and Debbie Powell, for providing constant support and encouragement. I could not have completed this project without your understanding and motivation.

Degree

B. A.; An honors thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Bachelor of Arts.

Date

12-2021

Subject

Waste tires as fuel--Mathematical models

Keyword

Engineering; Energy Conversions; Solid Oxide Fuel Cell; Gasification; Biomass

Discipline

Energy Systems

Document Type

Theses

Extent

[i], [38] leaves

DCMI Type

Text

Language

English

Rights

http://rightsstatements.org/vocab/InC/1.0/

License

http://creativecommons.org/licenses/by/4.0/

Date Available

8-1-2022

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