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Author: Franz Mayinger Publisher: Springer Science & Business Media ISBN: 3662029677 Category : Science Languages : en Pages : 462
Book Description
Increasing possibilities of computer-aided data processing have caused a new revival of optical techniques in many areas of mechanical and chemical en gineering. Optical methods have a long tradition in heat and mass transfer and in fluid dynamics. Global experimental information is not sufficient for developing constitution equations to describe complicated phenomena in fluid dynamics or in transfer processes by a computer program . Furthermore, a detailed insight with high local and temporal resolution into the thermo-and fluiddynamic situations is necessary. Sets of equations for computer program in thermo dynamics and fluid dynamics usually consist of two types of formulations: a first one derived from the conservation laws for mass, energy and momentum, and a second one mathematically modelling transport processes like laminar or turbulent diffusion. For reliably predicting the heat transfer, for example, the velocity and temperature field in the boundary layer must be known, or a physically realistic and widely valid correlation describing the turbulence must be avail able. For a better understanding of combustion processes it is necessary to know the local concentration and temperature just ahead of the flame and in the ignition zone.
Author: Franz Mayinger Publisher: Springer Science & Business Media ISBN: 3662029677 Category : Science Languages : en Pages : 462
Book Description
Increasing possibilities of computer-aided data processing have caused a new revival of optical techniques in many areas of mechanical and chemical en gineering. Optical methods have a long tradition in heat and mass transfer and in fluid dynamics. Global experimental information is not sufficient for developing constitution equations to describe complicated phenomena in fluid dynamics or in transfer processes by a computer program . Furthermore, a detailed insight with high local and temporal resolution into the thermo-and fluiddynamic situations is necessary. Sets of equations for computer program in thermo dynamics and fluid dynamics usually consist of two types of formulations: a first one derived from the conservation laws for mass, energy and momentum, and a second one mathematically modelling transport processes like laminar or turbulent diffusion. For reliably predicting the heat transfer, for example, the velocity and temperature field in the boundary layer must be known, or a physically realistic and widely valid correlation describing the turbulence must be avail able. For a better understanding of combustion processes it is necessary to know the local concentration and temperature just ahead of the flame and in the ignition zone.
Author: L. Michalski Publisher: John Wiley & Sons ISBN: 9780471867791 Category : Technology & Engineering Languages : en Pages : 526
Book Description
Die exakte Temperaturmessung ist ein wichtiger Parameter in vielen Bereichen. Dieser Band wurde komplett überarbeitet und aktualisiert und enthält darüber hinaus die neuesten IEC Standards. Theorie und instrumentelle Praxis der Temperaturbestimmung werden hier umfassend behandelt. (09/00)
Author: Henry J. Kostkowski Publisher: ISBN: Category : Optical pyrometers Languages : en Pages : 36
Book Description
A detailed review of the theoretical methods of optical pyrometry and the application of these methods at the National Bureau of Standards in realizing, maintaining and distributing the International Practical Temperature Scale above 1063 C degrees is presented.In the theoretical presentation, the concepts of effective and mean effective wavelengths are introduced, and various equations relating these parameters to each other and other physical quantities are derived.The important features of precision visual optical pyrometers are discussed and a number of blackbody sources and tungsten strip lamps described. Detailed experimental procedures and results of primary and secondary calibrations of optical pyrometers at NBS are given.Finally, recommendations for achieving high precision and accuracy and the fundamental limitations in visual optical pyrometry are presented.(Author).
Author: J.R. Leigh Publisher: IET ISBN: 0863411118 Category : Technology & Engineering Languages : en Pages : 208
Book Description
This book treats the theory and practice of temperature measurement and control and important related topics such as energy management and air pollution.
Author: Hasok Chang Publisher: Oxford University Press ISBN: 0199883696 Category : Science Languages : en Pages : 305
Book Description
What is temperature, and how can we measure it correctly? These may seem like simple questions, but the most renowned scientists struggled with them throughout the 18th and 19th centuries. In Inventing Temperature, Chang examines how scientists first created thermometers; how they measured temperature beyond the reach of standard thermometers; and how they managed to assess the reliability and accuracy of these instruments without a circular reliance on the instruments themselves. In a discussion that brings together the history of science with the philosophy of science, Chang presents the simple eet challenging epistemic and technical questions about these instruments, and the complex web of abstract philosophical issues surrounding them. Chang's book shows that many items of knowledge that we take for granted now are in fact spectacular achievements, obtained only after a great deal of innovative thinking, painstaking experiments, bold conjectures, and controversy. Lurking behind these achievements are some very important philosophical questions about how and when people accept the authority of science.
Author: Luís Dias Carlos Publisher: Royal Society of Chemistry ISBN: 1849739048 Category : Science Languages : en Pages : 540
Book Description
Covers the fundamentals of measuring temperature at the nanoscale, luminescence-based and non-luminescence based thermometry techniques, and applications.
Author: Michael Vollmer Publisher: John Wiley & Sons ISBN: 3527413510 Category : Science Languages : en Pages : 803
Book Description
This new up-to-date edition of the successful handbook and ready reference retains the proven concept of the first, covering basic and advanced methods and applications in infrared imaging from two leading expert authors in the field. All chapters have been completely revised and expanded and a new chapter has been added to reflect recent developments in the field and report on the progress made within the last decade. In addition there is now an even stronger focus on real-life examples, with 20% more case studies taken from science and industry. For ease of comprehension the text is backed by more than 590 images which include graphic visualizations and more than 300 infrared thermography figures. The latter include many new ones depicting, for example, spectacular views of phenomena in nature, sports, and daily life.
Author: Franz Mayinger
Author: Franz Mayinger
Author: L. Michalski
Author: Thomas Stewart Traill
Author: Henry J. Kostkowski
Author: J.R. Leigh
Author: Hasok Chang
Author: B. B. Brenden
Author: Luís Dias Carlos
Author: Michael Vollmer
Author: George Kimball Burgess