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Comparisons Of Gas Phase Temperature Measurements In A Flame Using Thin Filament Pyrometry And Thermocouples
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721573189 Total Pages :30 pages Book Rating :4.5/5 (731 download)
Book Synopsis Comparisons of Gas-Phase Temperature Measurements in a Flame Using Thin-Filament Pyrometry and Thermocouples by : National Aeronautics and Space Administration (NASA)
Download or read book Comparisons of Gas-Phase Temperature Measurements in a Flame Using Thin-Filament Pyrometry and Thermocouples written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Less-intrusive, fast-responding, and full-field temperature measurements have long been a desired tool for the research community. Recently, the emission of a silicon-carbide (SiC) fiber placed in a flowing hot (or reacting) gas has been used to measure the temperature profile along the length of the fiber. The relationship between the gas and fiber temperature comes from an energy balance on the fiber. In the present work, we compared single point flame temperature measurements using thin-filament pyrometry (TFP) and thermocouples. The data was from vertically traversing a thermocouple and a SiC fiber through a methanol/air diffusion flame of a porous-metal wick burner. The results showed that the gas temperature using the TFP technique agreed with the thermocouple measurements (25.4 m diameter wire) within 3.5% for temperatures above 1200 K. Additionally, we imaged the entire SiC fiber (with a spatial resolution of 0.14 mm) while it was in the flame using a high resolution CCD camera. The intensity level along the fiber length is a function of the temperature. This results in a one-dimensional temperature profiles at various heights above the burner wick. This temperature measurement technique, while having a precision of less than 1 K, showed data scatter as high as 38 K. Finally, we discuss the major sources of uncertainty in gas temperature measurement using TFP. Struk, Peter and Dietrich, Daniel and Valentine, Russell and Feier, Ioan Glenn Research Center NASA/TM-2003-212096, AIAA Paper 2003-853, NAS 1.15:212096, E-13749
Book Synopsis Comparisons of Gas-Phase Temperature Measurements in a Flame Using Thin-Filament Pyrometry and Thermocouples by : Peter Struk
Download or read book Comparisons of Gas-Phase Temperature Measurements in a Flame Using Thin-Filament Pyrometry and Thermocouples written by Peter Struk and published by . This book was released on 2003 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparisons Of Gas-Phase Temperature Measurements In A Flame Using Thin-Filament Pyrometry And Thermocouples... NASA/TM-2003-212096... National Aeronautics And Space Administration... Feb. 2003 by : United States. National Aeronautics and Space Administration
Download or read book Comparisons Of Gas-Phase Temperature Measurements In A Flame Using Thin-Filament Pyrometry And Thermocouples... NASA/TM-2003-212096... National Aeronautics And Space Administration... Feb. 2003 written by United States. National Aeronautics and Space Administration and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Temperature Field Measurements Using Thin Filament Pyrometry in a Medium-scale Methanol Pool Fire by : Zhigang Wang
Download or read book Temperature Field Measurements Using Thin Filament Pyrometry in a Medium-scale Methanol Pool Fire written by Zhigang Wang and published by . This book was released on 2018 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements were made to characterize the time-varying temperature field in a medium-sized methyl alcohol (methanol; CH3OH) pool fire steadily burning in a quiescent environment. A digital camera fitted with optical filters and a zoom lens was used to record the high temperature emission intensity of 14 ℗æm diameter Type S Silicon-Carbide filaments oriented horizontally at various heights above a central cross-section of a steadily burning 0.30 m diameter methanol pool fire. The camera optics focused on the filaments with a field of view of approximately 0.3 m wide by 0.6 m high. Using the optical camera, the filament was observable only for temperatures larger than 1150 K. Experiments were conducted to collect thousands of frames of 30 Hz video. In a separate experiment, a 50 ℗æm diameter thermocouple was used to acquire 3400 independent temperature measurements at several locations in the high temperature zone of the fire. A correlation was developed between the probability density functions of the radiation-corrected thermocouple measurements and the camera grayscale pixel intensity of the filament for the same fire locations. Assuming a Gaussian temperature distribution, a fitting routine was used to determine the mean temperature and its variance from the calculated filament temperature. The mean temperatures compared favorably to previously reported measurements. False color maps of temperature were produced characterizing the entire high temperature flow field as a function of time. The time-averaged temperature field for each phase of the pulsing methanol fire was also determined. The results provide insight into the dynamic character of turbulent pool fires.
Book Synopsis 41st AIAA Aerospace Sciences Meeting & Exhibit by :
Download or read book 41st AIAA Aerospace Sciences Meeting & Exhibit written by and published by . This book was released on 2003 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 2000 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Engineering for Gas Turbines and Power by :
Download or read book Journal of Engineering for Gas Turbines and Power written by and published by . This book was released on 2007 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Combustion Institute (U.S.). Eastern States Section. Fall Technical Meeting Publisher : ISBN 13 : Total Pages :558 pages Book Rating :4.E/5 ( download)
Book Synopsis Chemical and Physical Processes in Combustion by : Combustion Institute (U.S.). Eastern States Section. Fall Technical Meeting
Download or read book Chemical and Physical Processes in Combustion written by Combustion Institute (U.S.). Eastern States Section. Fall Technical Meeting and published by . This book was released on 1996 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microgravity Combustion by : Howard D. Ross
Download or read book Microgravity Combustion written by Howard D. Ross and published by Elsevier. This book was released on 2001-09-03 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to understanding combustion, the burning of a substance that produces heat and often light, in microgravity environments-i.e., environments with very low gravity such as outer space. Readers are presented with a compilation of worldwide findings from fifteen years of research and experimental tests in various low-gravity environments, including drop towers, aircraft, and space.Microgravity Combustion is unique in that no other book reviews low- gravity combustion research in such a comprehensive manner. It provides an excellent introduction for those researching in the fields of combustion, aerospace, and fluid and thermal sciences.* An introduction to the progress made in understanding combustion in a microgravity environment* Experimental, theoretical and computational findings of current combustion research* Tutorial concepts, such as scaling analysis* Worldwide microgravity research findings
Download or read book Ceramic Abstracts written by and published by . This book was released on 1961 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science Abstracts written by and published by . This book was released on 1993 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanodiamond written by Oliver A Williams and published by Royal Society of Chemistry. This book was released on 2014-03-18 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exceptional mechanical, optical, surface and biocompatibility properties of nanodiamond have gained it much interest. Exhibiting the outstanding bulk properties of diamond at the nanoscale in the form of a film or small particle makes it an inexpensive alternative for many applications. Nanodiamond is the first comprehensive book on the subject. The book reviews the state of the art of nanodiamond films and particles covering the fundamentals of growth, purification and spectroscopy and some of its diverse applications such as MEMS, drug delivery and biomarkers and biosensing. Specific chapters include the theory of nanodiamond, diamond nucleation, low temperature growth, diamond nanowires, electrochemistry of nanodiamond, nanodiamond flexible implants, and cell labelling with nanodiamond particles. Edited by a leading expert in nanodiamonds, this is the perfect resource for those new to, and active in, nanodiamond research and those interested in its applications.
Book Synopsis Thermal Analysis of Materials by : Robert Speyer
Download or read book Thermal Analysis of Materials written by Robert Speyer and published by CRC Press. This book was released on 1993-09-16 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discussing the design and optimum use of thermal analysis instrumentation for materials' property measurement, this work details how the instruments work, what they measure, potential pitfalls and the fitting of experimental results to theoretical models. It presents a tutorial on writing computer programs for data manipulation, advanced thermoanalytical methods and case studies.
Book Synopsis Mechanical Properties of Ceramics by : John B. Wachtman
Download or read book Mechanical Properties of Ceramics written by John B. Wachtman and published by John Wiley & Sons. This book was released on 2009-08-13 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Comprehensive and Self-Contained Treatment of the Theory and Practical Applications of Ceramic Materials When failure occurs in ceramic materials, it is often catastrophic, instantaneous, and total. Now in its Second Edition, this important book arms readers with a thorough and accurate understanding of the causes of these failures and how to design ceramics for failure avoidance. It systematically covers: Stress and strain Types of mechanical behavior Strength of defect-free solids Linear elastic fracture mechanics Measurements of elasticity, strength, and fracture toughness Subcritical crack propagation Toughening mechanisms in ceramics Effects of microstructure on toughness and strength Cyclic fatigue of ceramics Thermal stress and thermal shock in ceramics Fractography Dislocation and plastic deformation in ceramics Creep and superplasticity of ceramics Creep rupture at high temperatures and safe life design Hardness and wear And more While maintaining the first edition's reputation for being an indispensable professional resource, this new edition has been updated with sketches, explanations, figures, tables, summaries, and problem sets to make it more student-friendly as a textbook in undergraduate and graduate courses on the mechanical properties of ceramics.
Download or read book Fossil Energy Update written by and published by . This book was released on 1977 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanical Measurements by : S.P. Venkateshan
Download or read book Mechanical Measurements written by S.P. Venkateshan and published by Springer Nature. This book was released on 2021-07-01 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: p="" This book focuses both on the basics and more complex topics in mechanical measurements such as measurement errors & statistical analysis of data, regression analysis, heat flux, measurement of pressure, and radiation properties of surfaces. End of chapter problems, solved illustrations, and exercise problems are presented throughout the book to augment learning. It is a useful reference for students in both undergraduate and postgraduate programs. ^
