
Foreword
Textbooks on heat transfer u'sually concentrate on the analysis of heat transfer
processes and either devote only a small amount of space to the discussion of
measurement techniques or exclude this subject completely. On the other hand,
special problems are encountered in heat transfer measurements and experience
is required when accurate results are desired.
course on "Measurement Techniques in Heat Transfer" was held in June, 1968,
at the University of Minnesota, organized by its Extension Division with lectures
presented by the staff of the Thermodynamics and Heat Transfer Division of the
School of Mechanical and Aerospace Engineering at the University of Minnesota,
and by speakers from other organizations who are specialists in the subjects of
their lectures. Papers based on these lectures have been collected at the suggestion
of the Advisory Group for Aerospace Research and Development and form
the content of this book.
For this reason, a special summer
Temperature measurements in a heat transfer situation should not be considered
without a check on possible systematic errors caused by conduction, radiation or,
in an unsteady situation, heat capacity effects. Section 1 discusses these errors
and the means to calculate them. Section 2 discusses resistance thermometers,
thermocouples, and pyrometers, their calibration and use for temperature
measurements.
G. W. Burns of the Heat Division, Institute of Basic Standards, National Bureau of
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