Racing engines and cracking fuels : laser-based measurement techniques for challenging environments
Abstract/Contents
- Abstract
- Although combustion fuels the modern world, much remains unknown about the hydrocarbon chemistry that governs the behavior of fuels and the energy systems used to extract their energy. Many open questions in the field can be traced to the limited diagnostics available to study fuel chemistry and energy-system performance, where relevant processes often occur at millisecond timescales and within inaccessible environments. This work seeks to address the limits of diagnostics in two particularly challenging areas of fuel research and energy-system design: high-temperature fuel pyrolysis and high-performance engines. Part 1 develops new diagnostics for measuring temperature and species in pyrolytic environments, then applies a novel convex-optimization-based technique to the thermal decomposition of ethane and propane to characterize the cracking patterns of these foundational alkane fuels and reveal insights into the governing chemistry. Part 2 shifts gears to present the development of a temperature, pressure, and water-vapor sensor for high-performance-engine applications. The sensor overcomes the challenges of intense vibration, fuel-droplet attenuation, and enclosed geometries to measure intake-runner temperatures, pressures, and water mole fractions with near-crank-angle resolution. Together, these efforts expand the scope of diagnostic capabilities available to kineticists and engine developers to explore new domains, improve predictive modeling capabilities, and ultimately develop more efficient fuels and energy systems for the future.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2020; ©2020 |
| Publication date | 2020; 2020 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Cassady, Séan Joseph |
|---|---|
| Degree supervisor | Hanson, Ronald |
| Thesis advisor | Hanson, Ronald |
| Thesis advisor | Edwards, C. F. (Christopher Francis) |
| Thesis advisor | Wang, Hai, 1962- |
| Degree committee member | Edwards, C. F. (Christopher Francis) |
| Degree committee member | Wang, Hai, 1962- |
| Associated with | Stanford University, Department of Mechanical Engineering |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Séan Joseph Cassady. |
|---|---|
| Note | Submitted to the Department of Mechanical Engineering. |
| Thesis | Thesis Ph.D. Stanford University 2020. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2020 by Sean Joseph Cassady
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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