Temperature Measurement Using Infrared Spectral Band Emissions from H2O PDF Download
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Author: Daniel Jared Ellis
Publisher:
ISBN:
Category :
Languages : en
Pages : 53
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Book Description
Author: Daniel Jared Ellis
Publisher:
ISBN:
Category :
Languages : en
Pages : 53
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Book Description
Author: Daniel Jared Ellis
Publisher:
ISBN:
Category : Electronic Dissertations
Languages : en
Pages : 53
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Book Description
Currently there is no known method for accurately measuring the temperature of the gas phase of combustion products within a solid fuel flame. The industry standard is a suction pyrometer and thermocouple which is intrusive, both spatially and temporally averaging, and difficult to use. In this work a new method utilizing the spectral emission from water vapor is investigated through modeling and experimental measurements. This method was demonstrated along a 0.75m line of sight, averaged over 1 minute in the products of a natural gas flame but has the potential to produce a spatial resolution on the order of 5 cm and a temporal resolution of less than 1 millisecond. The method employs the collection of infrared emission from water vapor over discrete wavelength bands and then uses the ratio of those emissions to infer temperature. A 12.5 mm lens has been positioned within a water cooled probe to focus flame product gas emission into an optical fiber where the light is transmitted to a Fourier Transform Infrared Spectrometer (FTIR). The same optical setup was also used to collect light from a black body cavity at a known temperature in order to calibrate the spectral sensitivity of the optical system and FTIR detector. Experiments were conducted in the product gas of a 150 kWth methane flame comparing the optical emission results to a suction pyrometer with type K thermocouple. The optical measurement produced gas temperatures approximately 1 - 4% higher than the suction pyrometer. Broadband background emission was also seen by the optical measurement and was removed assuming grey body radiation. This background emission can be used to determine particle emission temperature and intensity. Additional work will be needed to demonstrate the method under conditions with significant particle emission. Additional work is also needed to demonstrate the work over a smaller path length and shorter time scale.
Author: Charles Robert Darling
Publisher:
ISBN:
Category : Pyrometers
Languages : en
Pages : 218
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Book Description
Author: Lawrence Davis
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 590
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Book Description
"Body Physics was designed to meet the objectives of a one-term high school or freshman level course in physical science, typically designed to provide non-science majors and undeclared students with exposure to the most basic principles in physics while fulfilling a science-with-lab core requirement. The content level is aimed at students taking their first college science course, whether or not they are planning to major in science. However, with minor supplementation by other resources, such as OpenStax College Physics, this textbook could easily be used as the primary resource in 200-level introductory courses. Chapters that may be more appropriate for physics courses than for general science courses are noted with an asterisk symbol (*). Of course this textbook could be used to supplement other primary resources in any physics course covering mechanics and thermodynamics"--Textbook Web page.
Author: Peter Saunders
Publisher: SPIE Press
ISBN: 0819467839
Category : Petroleum chemicals industry
Languages : en
Pages : 177
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Book Description
Offers an introduction to the subject of radiation thermometry, focusing on sources of measurement error and giving advice on methods for minimizing or eliminating these errors. This title cover such topics as: blackbody radiation, emissivity, reflection errors, and atmospheric absorption and emission; and common radiation thermometers.
Author: Claudia Kuenzer
Publisher: Springer Science & Business Media
ISBN: 9400766394
Category : Technology & Engineering
Languages : en
Pages : 547
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Book Description
This book provides a comprehensive overview of the state of the art in the field of thermal infrared remote sensing. Temperature is one of the most important physical environmental variables monitored by earth observing remote sensing systems. Temperature ranges define the boundaries of habitats on our planet. Thermal hazards endanger our resources and well-being. In this book renowned international experts have contributed chapters on currently available thermal sensors as well as innovative plans for future missions. Further chapters discuss the underlying physics and image processing techniques for analyzing thermal data. Ground-breaking chapters on applications present a wide variety of case studies leading to a deepened understanding of land and sea surface temperature dynamics, urban heat island effects, forest fires, volcanic eruption precursors, underground coal fires, geothermal systems, soil moisture variability, and temperature-based mineral discrimination. ‘Thermal Infrared Remote Sensing: Sensors, Methods, Applications’ is unique because of the large field it spans, the potentials it reveals, and the detail it provides. This book is an indispensable volume for scientists, lecturers, and decision makers interested in thermal infrared technology, methods, and applications.
Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 572
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Book Description
Author: Janice L. Bishop
Publisher: Cambridge University Press
ISBN: 110718620X
Category : Language Arts & Disciplines
Languages : en
Pages : 655
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Book Description
Comprehensive overview of the spectroscopic, mineralogical, and geochemical techniques used in planetary remote sensing.
Author: B. G. Young
Publisher:
ISBN:
Category :
Languages : en
Pages : 59
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Book Description
This report describes preliminary work to collect the infrared spectral emission signatures of ambient temperature objects using a Fourier transform spectrometer operating in the 8-13 micrometer wavelength range. Details of the construction of a sample container are presented along with a description of the spectrometer, the controlling computer, and the data collection techniques and procedures. A system test, which is actually the ratio of two blackbodies at different temperatures, suggests that these procedures are valid. The emissivities of Krylon 1602 ultra-flat black paint, crushed fused quartz, and three types of cotton are presented.
Author: Wormhoudt
Publisher: CRC Press
ISBN: 9780824774295
Category : Technology & Engineering
Languages : en
Pages : 312
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Book Description
This interdisciplinary volume is an excellent resource for anyone who wants an in-depth understanding of current and emerging trends in gaseous measurement techniques. It provides both qualitative and quantitative introductions to the physics involved in using remote observations to collect data, and offers numerous examples that encourage new applications of existing technologies. Compiled by an authority on spectroscopy, chemical kinetics and infrared emissions from combustible sources, this volume compares burnoff flare and stack plume emission spectra with parametric calculations performed with equally high spectral resolution ... discusses sensitivity of spectra to source temperature, and behavior of emission and absorption linewidths with temperature ... reviews the emission-absorption techniques for determining temperature and species concentration profiles ... and much more. Infrared Methods for Gaseous Measurements is a vital research tool for photo-optical instrumentation engineers; electro-optical engineers; chemical, aerospace, automotive, combustion, environmental, and mechanical engineers; and technologists involved in radiation, infrared or laser research. The book also serves as an excellent resource for graduate molecular spectroscopy courses and postgraduate infrared technology seminars. Book jacket.
