DETERMINATION OF THERMOPHYSICAL PROPERTIES OF MATERIALS

DETERMINATION OF THERMOPHYSICAL PROPERTIES OF MATERIALS

Analytical models for determining thermophysical properties of materials in an absorption Calorimeter

LAP Lambert Academic Publishing ( 08.04.2011 )

€ 59,00

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In this book, an analytical method for on-line determination of absorptance and emittance of materials is discussed. It uses data from sample heating and cooling histories obtained from an absorption calorimeter. The calorimeter is a box chamber having a window, sample holder, tungsten halogen lamp and a microcomputer with instrument interface to control the opening and closing of the shutter window. It is automated with a Z80 microprocessor system that acquires data from the sample through thermocouples, filters, amplifiers and analogue-to-digital converters for temporary storage in an on-board RAM. Analytical solutions of heat balance equations of the calorimeter are computed for the data using numerical methods. Newton's iteration procedure for systems of nonlinear equations is used with the assumption that the thermophysical properties are constant in the temperature range considered. The IBM PS/2 model 50z microcomputer has been employed to process the data and display the results. The book can be used by students, researchers and workers in various fields to model low temperature thermal processes like in solar Photothermal applications.

Kitap detayları:

ISBN-13:

978-3-8443-2221-7

ISBN-10:

3844322213

EAN:

9783844322217

Kitabın dili:

English

Yazar:

Otieno Fredrick

Sayfa sayısı:

136

Yayın tarihi:

08.04.2011

Kategori:

Termodinamik