Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Tunable Diode Laser Absorption Spectroscopy"”.
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Determination of Flame Dynamics for Unsteady Combustion Systems using Tunable Diode Laser Absorption Spectroscopy
… the response in chemical reaction rate. Tunable Diode Laser Absorption Spectroscopy (TDLAS), centered over two water absorption features, allows a dynamic measurement of the product gas temperature. The response in product gas temperature directly relates to the enthalpy fluctuations that …
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Determining Emission Factors from Marine Vessels Employing Differential Optical Absorption Spectroscopy (DOAS) and Tunable Diode Laser Absorption Spectroscopy (TDLAS)
High SO2 concentrations are harmful to human health and impact climate by affecting cloud formation. Ship contrails are the major source of SO2 in the open-ocean and impact coastal region air quality. The International Maritime Organization (IMO) regulates SO2 emissions by requiring ships to use …
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Laser absorption spectroscopy for investigation of hypersonic propulsion
… the inflow gas in the ACT-II facility, using tunable diode laser absorption spectroscopy (TDLAS) to measure temperature and nitric oxide (NO) concentration. Another fundamental challenge associated with scramjet operation is achieving efficient fuel-air mixing and ignition within the short …
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An Optical Analysis of the Blowoff Behavior for Bluff Body-Stabilized Flames in Vitiated Flow
… application to the turbulent combustion rig, a tunable diode laser absorption spectroscopy (TDLAS) system was developed. A TDL with a center wavelength in the near infrared region was simultaneously scanned across absorption lines of H<sub>2</sub>O and CO<sub>2</sub> to obtain temperature and …
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Hydrogen purity assessment using laser absorption Spectroscopy
… spectrometer (𝐻2-Spectrometer) based on direct Tunable Diode Laser Absorption Spectroscopy (d-TDLAS). The goal is to establish a traceable and accurate methodology for hydrogen purity and concentration measurement without relying on calibration gases. The main objective of this research is to …
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Developing in situ instrumentation to monitor anthropogenic change
… the development process of CSPEC, a deep-sea laser spectrometer designed to measure the ocean carbon system through alternating measurements of the partial pressure of carbon dioxide (pCO2) and dissolved inorganic carbon (DIC). CSPEC uses tunable diode laser absorption spectroscopy (TDLAS) to …
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Developing In Situ Instrumentation to Monitor Anthropogenic Change
… the development process of CSPEC, a deep-sea laser spectrometer designed to measure the ocean carbon system through alternating measurements of the partial pressure of carbon dioxide (pCO₂) and dissolved inorganic carbon (DIC) . CSPEC uses tunable diode laser absorption spectroscopy (TDLAS) to …
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Laser Remote Sensing for Environmental Monitoring
This thesis studies the techniques of laser remote sensing and their applications in environmental monitoring, as documented in several published papers. The environment where the human being live is degrading with an accelerating speed. Quantitative monitoring characterizes the quality of the …
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Characterization of Argon and Ar/Cl<sub>2</sub> Plasmas Used for the Processing of Niobium Superconducting Radio-Frequency Cavities
… difficult. Thus, electrical probe and spectroscopy techniques were applied to a coaxial cylindrical capacitively coupled plasma designed for the plasma processing of SRF cavities with the intention of finding pertinent relationships between the external parameters and the important …
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On quantification of hydrogen cyanide in residential fire environments and its implications on occupant tenability
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms