contributor author | H. Chang | |
contributor author | M. Altman | |
contributor author | R. Sharma | |
date accessioned | 2017-05-08T23:53:00Z | |
date available | 2017-05-08T23:53:00Z | |
date copyright | July, 1967 | |
date issued | 1967 | |
identifier issn | 1528-8919 | |
identifier other | JETPEZ-26661#407_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/118434 | |
description abstract | This paper describes a method for the determination of thermal diffusivities which has been developed specifically for substances which are poor conductors and which have high melting points. Materials which are useful for thermal energy storage fall into this category. The method has several unique features. The basic principle involved consists of raising the surface temperature of a solid specimen at a uniform rate. After the initial transients have died out, the diffusivity can be determined from temperature measurements alone. The advantages of the method are: (a) Heat flux measurements are not needed; (b) materials can be tested right up to the melting point, since the specimens can be encapsulated and softening can be tolerated; (c) large temperature ranges can be tested quickly; (d) precision and accuracy are good. The method has been extended to the liquid range, and results will be published as Part II. Results of measurements are reported for alumina and lithium fluoride. The results for alumina (Lucalox) check results reported previously. The results on LiF differ from published results. Data on other substances are still being produced and results will be published at a later date. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | The Determination of Thermal Diffusivities of Thermal Energy Storage Materials, Part I: Solids up to Melting Point | |
type | Journal Paper | |
journal volume | 89 | |
journal issue | 3 | |
journal title | Journal of Engineering for Gas Turbines and Power | |
identifier doi | 10.1115/1.3616705 | |
journal fristpage | 407 | |
journal lastpage | 414 | |
identifier eissn | 0742-4795 | |
keywords | Solids | |
keywords | Melting point | |
keywords | Thermal energy storage | |
keywords | Temperature | |
keywords | Measurement | |
keywords | Temperature measurement | |
keywords | Accuracy and precision | |
keywords | Lithium AND Heat flux | |
tree | Journal of Engineering for Gas Turbines and Power:;1967:;volume( 089 ):;issue: 003 | |
contenttype | Fulltext | |