Thermal conductivity of organic liquids

The liquid state is discussed with reference to its importance in determining the transport properties. Existing quasi gaseous and,quasi crystalline theories of energy transport in liquids are outlined and their predictions for simple molecular systems discussed. The methods available for measuring...

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Main Author: Horrocks, Jon Keith
Published: Imperial College London 1963
Subjects:
547
Online Access:https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602215
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spelling ndltd-bl.uk-oai-ethos.bl.uk-6022152019-03-05T15:36:13ZThermal conductivity of organic liquidsHorrocks, Jon Keith1963The liquid state is discussed with reference to its importance in determining the transport properties. Existing quasi gaseous and,quasi crystalline theories of energy transport in liquids are outlined and their predictions for simple molecular systems discussed. The methods available for measuring thermal conductivity have been critically surveyed and the advantages of the selected transient conduction method are presented and analysed in detail. In addition to measurements upon the well studied compounds toluene and water the group of compounds benzene, diphenyl, ortho-, meta- and para-terphenyl and triphenylene have been studied over a range of temperature including the supercooled state. The thermal conductivities and viscosities of the isotopically substituted pairs benzene and perdeuterobenzene, cyclohexane and perdeuterocyclohexane have been measured. Existing diffusion data on ethyl iodide n-butyl iodide mixtures have been supplemented by viscosity and thermal conductivity measurements. In Part 3 existing theories of liquid thermal conduction are extended for liquids containing simple molecules. An expression is derived in terms of a mean molecular vibration frequency calculated from known pair forces assuming a quasi crystalline liquid structure,. A close relationship between the temperature coefficient of thermal conductivity and the thermal expansion coefficient is indicated. The contrasting behaviour of energy and momentum transport in molten polyphenyls is discussed and the thermal conductivities compared with the existing theories. The ratios of the transport coefficients of energy and momentum in isotopically substituted benzene and cyclohexane are discussed with reference to mechanisms of transport in condensed phases and the experimental results are compared with a specific model due to Valleau. Some relationship between the transport coefficients of mass momentum and energy in binary regular solutions have been extracted from a theory of Bearman and compared with the values obtained experimentally for ethyl iodide, n butyl iodide mixtures,547Imperial College Londonhttps://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602215http://hdl.handle.net/10044/1/13304Electronic Thesis or Dissertation
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sources NDLTD
topic 547
spellingShingle 547
Horrocks, Jon Keith
Thermal conductivity of organic liquids
description The liquid state is discussed with reference to its importance in determining the transport properties. Existing quasi gaseous and,quasi crystalline theories of energy transport in liquids are outlined and their predictions for simple molecular systems discussed. The methods available for measuring thermal conductivity have been critically surveyed and the advantages of the selected transient conduction method are presented and analysed in detail. In addition to measurements upon the well studied compounds toluene and water the group of compounds benzene, diphenyl, ortho-, meta- and para-terphenyl and triphenylene have been studied over a range of temperature including the supercooled state. The thermal conductivities and viscosities of the isotopically substituted pairs benzene and perdeuterobenzene, cyclohexane and perdeuterocyclohexane have been measured. Existing diffusion data on ethyl iodide n-butyl iodide mixtures have been supplemented by viscosity and thermal conductivity measurements. In Part 3 existing theories of liquid thermal conduction are extended for liquids containing simple molecules. An expression is derived in terms of a mean molecular vibration frequency calculated from known pair forces assuming a quasi crystalline liquid structure,. A close relationship between the temperature coefficient of thermal conductivity and the thermal expansion coefficient is indicated. The contrasting behaviour of energy and momentum transport in molten polyphenyls is discussed and the thermal conductivities compared with the existing theories. The ratios of the transport coefficients of energy and momentum in isotopically substituted benzene and cyclohexane are discussed with reference to mechanisms of transport in condensed phases and the experimental results are compared with a specific model due to Valleau. Some relationship between the transport coefficients of mass momentum and energy in binary regular solutions have been extracted from a theory of Bearman and compared with the values obtained experimentally for ethyl iodide, n butyl iodide mixtures,
author Horrocks, Jon Keith
author_facet Horrocks, Jon Keith
author_sort Horrocks, Jon Keith
title Thermal conductivity of organic liquids
title_short Thermal conductivity of organic liquids
title_full Thermal conductivity of organic liquids
title_fullStr Thermal conductivity of organic liquids
title_full_unstemmed Thermal conductivity of organic liquids
title_sort thermal conductivity of organic liquids
publisher Imperial College London
publishDate 1963
url https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602215
work_keys_str_mv AT horrocksjonkeith thermalconductivityoforganicliquids
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