Further development of the dynamic gas temperature measurement system
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Further development of the dynamic gas temperature measurement system by Dana R. Stocks

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Published by Pratt & Whitney, Government Products Division in West Palm Beach, FL .
Written in English

Subjects:

  • Gases -- Thermal properties -- Computer programs.

Book details:

Edition Notes

StatementDana R. Stocks.
SeriesNASA contractor report -- NASA CR-179604.
ContributionsUnited States. National Aeronautics and Space Administration.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL15393310M

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  A compensated thermocouple measurement method was experimentally verified. Dynamic signal content from an atmospheric pressure laboratory burner was measured by the dynamic temperature sensor and a relatively delicate fine-wire resistance thermometer. Compensated data from the two dynamic temperature sensor thermoelements were compared with the compensated fine Cited by: 4.   Two experiments for verifying the frequency response of a previously-developed dynamic gas temperature measurement system were performed. In both experiments, fine-wire resistance temperature sensors were used as standards. The compensated dynamic temperature sensor data will be compared with the standards to verify the compensation method. The experiments are described in Author: D. L. Elmore, W. W. Robinson, W. B. Watkins. The chapter includes definitions of idealised sensor, its transfer function and theory of measurement of time varying temperature and next definition and properties of real industrial sensors. The chapter presents, in detail, methods of experimental determination of dynamic properties of sensors including step and frequency response. Volume 1 of the Handbook of Temperature Measurement, prepared by the CSIRO National Measurement Laboratory, Australia, details the principles and techniques involved in the measurement of humidity, in cryogenic and radiation thermometry and a variety of unconventional methods of temperature measurement. Other topics considered are thermal conductivity and the traceability of measurement.

The accurate measurement of temperature is a vital parameter in many fields of engineering and scientific practice. Responding to emerging trends, this classic reference has been fully revised to include coverage of the latest instrumentation and measurement methods.   The accurate measurement of temperature is a vital parameter in many fields of engineering and scientific practice. Responding to emerging trends, this classic reference has been fully revised to include coverage of the latest instrumentation and measurement methods. Featuring: Brand new chapters on computerised temperature measuring systems, signal conditioning and temperature measurement . The Nusselt number is generally a function of the channel geometry, the Reynolds number, Re, and the Prandtl number, fuel cells, in general, a laminar established flow holds for the gases, and thus the Nusselt number is a constant (Nu≈4).In eqn [16], λ is gas heat conductivity and d h is the hydraulic diameter of the gas channels present in the bipolar plates. • temperature rises can be significant (> 1, K) Vibrational relaxation effects • energy partitioned into vibrational modes in addition to translational • lowers temperature that would otherwise be realized • important for air above K • unimportant for .

Chapter 2 Measurement of Temperature Definition and units Heat balance difference of atmosphere between regions creates temperature distribution. This temperature distribution generates wind current along with cloud and rainfall phenomena. Thus, atmospheric temperature is one of the most important meteorological elements as well as wind and. The hot section technology (HOST) dynamic gas temperature measurement system computer program acquires data from two type B thermocouples of different diameters. The analysis method determines the in situ value of an aerodynamic parameter T, containing the heat transfer coefficient from the transfer function of the two thermocouples. Figure 2 shows the gas temperature distributions for G = 0 g 0 and g 0, where He pressure p= 40 kPa and discharge current I d = 40A. When G= 0 g 0, hot gas region monotonically and symmetrically expands with arc time Δt. It is conjectured that the heat flow is suppressed under the convection-free condition and the generated ohmic heat tends to be accumulated, which makes spherical large. The understanding of gas dynamics has been developed mainly in the nine- teenth century b y: Poisson () non-linear plane w aves, Riemann () method of characteristics, Rankine () and.