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Author : Wim A. De Groot
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (317 download)
Download or read book The Use of Spontaneous Raman Scattering for Hydrogen Leak Detection written by Wim A. De Groot and published by . This book was released on 1994 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Allen Joseph Ball
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (436 download)
Download or read book Investigation of Gaseous Hydrogen Leak Detection Using Raman Scattering and Laser-induced Breakdown Spectroscopy written by Allen Joseph Ball and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Gaseous hydrogen is being widely promoted as the future primary energy carrier to replace current hydrocarbon fuels. Governments and industries are investing in research and development programs to develop hydrogen production, transport and storage technologies. In addition, hydrogen gas is currently used in chemical processing and aerospace applications. Hydrogen gas is combustible with a wide flammability range of about 4 to 75 percent, a low ignition energy, and a low gas density.
Author : Wim A. De Groot
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)
Download or read book Fiber-Optic Based Compact Gas Leak Detection System written by Wim A. De Groot and published by . This book was released on 1995 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas Hübert
Publisher : CRC Press
ISBN 13 : 1466596554
Total Pages : 387 pages
Book Rating : 4.4/5 (665 download)
Download or read book Sensors for Safety and Process Control in Hydrogen Technologies written by Thomas Hübert and published by CRC Press. This book was released on 2018-10-09 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand, Select, and Design Sensors for Hydrogen-Based Applications The use of hydrogen generated from renewable energy sources is expected to become an essential component of a low-carbon, environmentally friendly energy supply, spurring the worldwide development of hydrogen technologies. Sensors for Safety and Process Control in Hydrogen Technologies provides practical, expert-driven information on modern sensors for hydrogen and other gases as well as physical parameters essential for safety and process control in hydrogen technologies. It illustrates how sensing technologies can ensure the safe and efficient implementation of the emerging global hydrogen market. The book explains the various facets of sensor technologies, including practical aspects relevant in hydrogen technologies. It presents a comprehensive and up-to-date account of the theory (physical and chemical principles), design, and implementations of sensors in hydrogen technologies. The authors also offer guidance on the development of new sensors based on the analysis of the capabilities and limitations of existing sensors with respect to current performance requirements. Suitable for both technical and non-technical personnel, the book provides a balance between detailed descriptions and simple explanations. It gives invaluable insight into the role sensors play as key enabling devices for both control and safety in established and emerging hydrogen technologies.
Author :
Publisher :
ISBN 13 :
Total Pages : 594 pages
Book Rating : 4.0/5 ( download)
Download or read book 30th AIAA/ASME/SAE/ASEE Joint Propulsion Conference written by and published by . This book was released on 1994 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Juan Sebastian Gomez Velez
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (127 download)
Download or read book Spontaneous Raman Scattering Enhancement with Microcavities and Multipass Resonators for Trace Gas Detection written by Juan Sebastian Gomez Velez and published by . This book was released on 2020 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continual increase in production and use of chemicals in an ever-growing field of applications naturally brings forth the necessity to accurately and efficiently measure molecular composition. Spontaneous Raman scattering is a reliable technique which can optically identify molecules based on their intrinsic rotational-vibrational energy structure. The Raman emission from a substance can be spectrally analyzed to detect molecular species simultaneously and with isotopic sensitivity using a single laser source. However, even though the process is non-invasive and effective, the rate at which the emission occurs is notoriously low due to a weak scattering cross-section. Therefore, research into the development of novel methods to enhance Raman emissions is a critical component for practical applications intrace gas detection.The work presented here focuses on the investigation of Raman enhancement techniques that have shown promise for potential applications in optical trace gas sensing. Fundamental properties were characterized and studied in regards to their ability to further benefit miniaturization, versatility, simplicity and overall Raman enhancement. Microscopic opticalcavities with high finesse were implemented to combine resonant pump recirculation with the Purcell spontaneous emission enhancement effect from cavity quantum electrodynamics. An improved compact cavity design (
Author :
Publisher :
ISBN 13 :
Total Pages : 1100 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jon L. Dossett
Publisher : ASM International
ISBN 13 : 1615031537
Total Pages : 547 pages
Book Rating : 4.6/5 (15 download)
Download or read book Heat Treating written by Jon L. Dossett and published by ASM International. This book was released on 1996-01-01 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 932 pages
Book Rating : 4.3/5 (243 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1995 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tatsuo Shiina
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)
Download or read book Hydrogen Gas Detection by Mini-Raman Lidar written by Tatsuo Shiina and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Now, Hydrogen gas is of particular interest as new energy source and dangerous material in nuclear facility. Fuel cell is started to use in home power generation system in 2008 and fuel cell vehicle (FCV) is commercialized from 2014 in Japan. On contrary, the Great East Japan Earthquake revealed the fear of hydrogen explosion on Fukushima Nuclear Power plant in 2011. Contact type hydrogen sensors induce changes on the gas flow, and the actual concentration cannot be known. It is hard to get the gas concentration distribution in hydrogen leakage area. We focused on optical remote sensing for the hydrogen detection. Raman scattering detection was accomplished for the hydrogen gas with a compact Diode Pumped Solid State (DPSS) laser-based Raman lidar. The quantitative measurement was conducted on the hydrogen gas concentration of 1 - 100% and the detectable distance of 50 m. Next, a LED-based mini Raman lidar was developed with the same optical design as the former one in viewpoints of its robust operation and usability in the nuclear facility. The high-speed photon counter was developed to follow the high repetition frequency of LED pulse of 500 kHz, and the quantitative measurements of hydrogen concentration were conducted on lab-experiment and at outdoor.
Author :
Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1963 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nasa Technical Reports Server (Ntrs)
Publisher : BiblioGov
ISBN 13 : 9781289286538
Total Pages : 50 pages
Book Rating : 4.2/5 (865 download)
Download or read book Quantitative Analysis of Spectral Interference of Spontaneous Raman Scattering in High-Pressure Fuel-Rich H2-Air Combustion written by Nasa Technical Reports Server (Ntrs) and published by BiblioGov. This book was released on 2013-08 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a theoretical study of the spectral interferences in the spontaneous Raman scattering spectra of major combustion products in 30-atm fuel-rich hydrogen-air flames. An effective methodology is introduced to choose an appropriate line-shape model for simulating Raman spectra in high-pressure combustion environments. The Voigt profile with the additive approximation assumption was found to provide a reasonable model of the spectral line shape for the present analysis. The rotational/vibrational Raman spectra of H2, N2, and H2O were calculated using an anharmonic-oscillator model using the latest collisional broadening coefficients. The calculated spectra were validated with data obtained in a 10-atm fuel-rich H2-air flame and showed excellent agreement. Our quantitative spectral analysis for equivalence ratios ranging from 1.5 to 5.0 revealed substantial amounts of spectral cross-talk between the rotational H2 lines and the N2 O-/Q-branch; and between the vibrational H2O(0,3) line and the vibrational H2O spectrum. We also address the temperature dependence of the spectral cross-talk and extend our analysis to include a cross-talk compensation technique that removes the nterference arising from the H2 Raman spectra onto the N2, or H2O spectra.
Author : American Institute of Aeronautics and Astronautics
Publisher :
ISBN 13 :
Total Pages : 1252 pages
Book Rating : 4.F/5 ( download)
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2003 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alex Mason
Publisher : Springer
ISBN 13 : 3319109480
Total Pages : 430 pages
Book Rating : 4.3/5 (191 download)
Download or read book Sensing Technology: Current Status and Future Trends III written by Alex Mason and published by Springer. This book was released on 2014-09-26 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a collection of selected works stemming from the 2013 International Conference on Sensing Technology (ICST), which was held in Wellington, New Zealand. The purpose of the book is to distill the highlights of the conference, and therefore track the latest developments in sensing technologies. The book contents are broad, since sensors can be applied in many different areas. Therefore the book gives a broad overview of the latest developments, in addition to discussing the process through which researchers go through in order to develop sensors, or related systems, which will become more widespread in the future. The book is written for academic and industry professionals working in the field of sensing, instrumentation and related fields, and is positioned to give a snapshot of the current state of the art in sensing technology, particularly from the applied perspective.
Author : American Institute of Aeronautics and Astronautics. Technical Information Service
Publisher :
ISBN 13 :
Total Pages : 226 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Finding Guide to AIAA Meeting Papers written by American Institute of Aeronautics and Astronautics. Technical Information Service and published by . This book was released on 1994 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (317 download)
Download or read book A Hydrogen Leak Detection System for Aerospace and Commercial Applications written by and published by . This book was released on 1995 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
