Robinson, J A J; Barry, T I (1997) Experimental methods for the measurement of thermodynamic data and recommendation about future capability at NPL. NPL Report. CMMT(A)75

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Abstract

The types of data required for the thermodynamic modelling of multicomponent systems is described, and the reason why both phase equilibria measurements and thermodynamic properties such as enthalpy, heat capacities and heats of mixing are needed is explained.
The problems associated with conventional thermal analysis techniques when used for the determination of phase boundaries are highlighted. The technique of Smith thermal analysis (SMTA) is described and the reasons why it is better than conventional thermal analysis are discussed. The ways that the current use of SMTA at UMIST can be improved and extended are outlined.
Recommendations for future thermodynamic experimental capability at NPL are given. There is a need to get both phase boundary information and thermodynamic properties to enable thermodynamic modelling of multicomponent systems. The purchase of a calorimeter for the measurement of various thermodynamic properties and the development of the Smith thermal analysis technique for the determination of phase boundaries are recommended.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	CMMT(A)75
Subjects:	Advanced Materials Advanced Materials > Thermodynamics
Last Modified:	10 Sep 2018 13:55
URI:	http://eprintspublications.npl.co.uk/id/eprint/800

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