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کتاب خواص حرارتی مواد جامد در اتاق و دمای برودتی Thermal Properties of Solids at Room and Cryogenic Temperatures

کتاب خواص حرارتی مواد جامد در اتاق و دمای برودتی Thermal Properties of Solids at Room and Cryogenic Temperatures

کتاب خواص حرارتی مواد جامد در اتاق و دمای برودتی Thermal Properties of Solids at Room and Cryogenic Temperatures

قیمت در آمازون: 129 دلار

نویسنده: (by Guglielmo Ventura (Author), Mauro Perfetti (Author

تعداد صفحات: 220

نوع فایل:pdf


The minimum temperature in the natural universe is 2.7 K. Laboratory refrigerators can reach temperatures in the microkelvin range. Modern industrial refrigerators cool foods at 200 K, whereas space mission payloads must be capable of working at temperatures as low as 20 K. Superconducting magnets used for NMR work at 4.2 K.
Hence the properties of materials must be accurately known also at cryogenic temperatures.

This book provides a guide for engineers, physicists, chemists, technicians who wish to approach the field of low-temperature material properties. The focus is on the thermal properties and a large spectrum of experimental cases is reported. The book presents updated tables of low-temperature data on materials and a thorough bibliography supplements any further research.
Key Features include:

-Detailed technical description of experiments
-Description of the newest cryogenic apparatus
-Offers data on cryogenic properties of the latest new materials
-Current reference review


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کتاب ظرفیت گرمایی و انبساط حرارتی در دماهای پایین Heat Capacity and Thermal Expansion at Low Temperatures

کتاب ظرفیت گرمایی و انبساط حرارتی در دماهای پایین Heat Capacity and Thermal Expansion at Low Temperatures

کتاب ظرفیت گرمایی و انبساط حرارتی در دماهای پایین Heat Capacity and Thermal Expansion at Low Temperatures

نوع فایل:

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قیمت در آمازون: 309 دلار

نویسنده: (by T.H.K. Barron (Author), G.K. White (Author


The birth of this monograph is partly due to the persistent efforts of the General Editor, Dr. Klaus Timmerhaus, to persuade the authors that they encapsulate their forty or fifty years of struggle with the thermal properties of materials into a book before they either expired or became totally senile. We recognize his wisdom in wanting a monograph which includes the closely linked properties of heat capacity and thermal expansion, to which we have added a little ‘cement’ in the form of elastic moduli.

There seems to be a dearth of practitioners in these areas, particularly among physics postgraduate students, sometimes temporarily alleviated when a new generation of exciting materials are found, be they heavy fermion compounds, high­ temperature superconductors, or fullerenes. And yet the needs of the space industry, telecommunications, energy conservation, astronomy, medical imaging, etc. , place demands for more data and understanding of these properties for all classes of materials – metals, polymers, glasses, ceramics, and mixtures thereof.

There have been many useful books, including Specific Heats at Low Tempera­ tures by E. S. Raja Gopal (1966) in this Plenum Cryogenic Monograph Series, but few if any that covered these related topics in one book in a fashion designed to help the cryogenic engineer and cryophysicist. We hope that the introductory chapter will widen the horizons of many without a solid state background but with a general interest in physics and materials.


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کتاب سیستم های گرمایش آب خورشیدی Solar Water Heating Systems

کتاب سیستم های گرمایش آب خورشیدی Solar Water Heating Systems

کتاب سیستم های گرمایش آب خورشیدی Solar Water Heating Systems

 

تعداد صفحات: 418

نوع فایل: pdf

نویسنده: by H.P. Garg

H.P. Garg Centre of Energy Studies Indian Institute of Technology Hauz Khas, New Delhi 110 016 India Heating of water using solar energy is not new and by using a little science and technology in it, the solar energy can be utilized more effectively and economically for heating the water both for domestic and industrial applications. Solar Water Heaters are popular for the last three decades in countries like USA, Australia, Israel, Japan, India. This is the only solar energy application which is commercially, technic­ ally and economically viable and has been studied for more than 30 years in many countries. Technical advances in solar water heating have been very rapid in the last 30 years. These are becoming popular not only for domestic use but for large establishments like hostels, hotels, hospitals, industries such as Textile, Paper and Food Processing and even in heating of swimming pools in winter. In few instances the cost of solar water heating systems may be higher than those operated by electricity, gas or other fuel but over a period of time this is more than recovered by the savings in the cost of operations and maintenance.


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