Determination of Water Vapor in Nitrogen. Thermal Conductivity Measurement of Hydrogen Liberated from Calcium Hydride

1958 ◽  
Vol 30 (7) ◽  
pp. 1250-1252 ◽  
Author(s):  
H. W. Linde ◽  
L. B. Rogers
Keyword(s):  
Thermal Conductivity ◽  
Water Vapor ◽  
Conductivity Measurement ◽  
Thermal Conductivity Measurement ◽  
Calcium Hydride

scholarly journals DETERMINATION OF THERMAL-MECHANICAL PROPERTIES OF CONCRETE

2002 ◽  
Vol 8 (2) ◽  
pp. 121-124
Author(s):  
Ramiz Delpak ◽  
Albinas Gailius ◽  
Dangyras Žukauskas
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Temperature Difference ◽  
Conductivity Measurement ◽  
Thermal Conductivity Measurement ◽  
Ordinary Method ◽  
Difference Measurement ◽  
Thermal Mechanical Properties ◽  
The Relationship

The aim of this investigation was to find the relationship between different percentage of damage and thermal conductivity of concrete. The influence of different damage on thermal conductivity of concrete was determined. The method with insulation (ordinary method) based on the temperature difference measurement between two surfaces of specimen, when one of the surfaces is heated, was used for thermal conductivity measurement. Three specimens for every percentage of damage were used for each measurement of thermal conductivity. After this research one conclusion can be made definitely: influence of different percentage of damage on thermal conductivity of concrete.

A Traversing-Thermocouple Technique for the Rapid Measurement of Thermal Conductivity in the Range 300 to 1200 K

1971 ◽  
Vol 93 (2) ◽  
pp. 165-171 ◽  
Author(s):  
Philip E. Eggers ◽  
Ralph E. Best
Keyword(s):  
Thermal Conductivity ◽  
Measurement Technique ◽  
Rapid Determination ◽  
Conductivity Measurement ◽  
Thermal Conductivity Measurement ◽  
Thermocouple Measurement ◽  
Wide Range ◽  
Novel Design ◽  
Two Temperature

A thermal conductivity measurement technique has been developed based on a novel design employing an ultrafine (0.02 cm dia) “traversing” thermocouple. This technique features the rapid determination of thermal conductivity as a function of temperature for specimens operating in the range from 300 up to 1200 K. In contrast to conventional “comparative” methods of thermal conductivity measurement, the present approach requires only one equilibrium condition, viz., the condition in which the specimen is maintained between the two temperature extremes of interest. The traversing-thermocouple measurement technique also permits the accommodation of a wide range of specimen sizes (e.g., 0.25 to 1.3 cm in diameter and 0.7 to 3.0 cm in length) and measurements accurate to within 5 to 7 percent. Although initially developed for use with semiconductors, the measurement technique is equally well suited to semimetals, metals, and insulators.

Construction of a thermal conductivity measurement system for small single crystals of organic conductors

2018 ◽  
Vol 135 (5) ◽  
pp. 2831-2836 ◽  
Author(s):  
Tetsuya Nomoto ◽  
Shusaku Imajo ◽  
Satoshi Yamashita ◽  
Hiroki Akutsu ◽  
Yasuhiro Nakazawa ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Single Crystals ◽  
Measurement System ◽  
Conductivity Measurement ◽  
Organic Conductors ◽  
Thermal Conductivity Measurement

Study of Method for Determination of Thermal Conductivity of Automotive Interior Materials

2014 ◽  
Vol 526 ◽  
pp. 46-51
Author(s):  
Li Xiong Zhang ◽  
Rong Gang Gao
Keyword(s):  
Thermal Conductivity ◽  
Conductivity Measurement ◽  
Transient Heat Conduction ◽  
Traditional Theory ◽  
Infinite Plane ◽  
Plane Source ◽  
Transient Plane Source ◽  
Wide Range ◽  
Automotive Interior

Based on the traditional theory of transient plane source for thermal conductivity measurement, this paper designed and developed a new pattern of heating and temperature sensing probe, presented the study of transient heat conduction of half-infinite plane while being heated, established a modified mathematical model of transient plane source method, and achieved the measurement of thermal conductivity of automotive interior material sample by the data processing method of mathematical iteration and liner regression using the modified transient plane source probe. According to the data of experiments, the instrument which this paper designed has a high precision of 5% and a wide range of 0.003-1W/(mK).This paper provides a practicable way for heat capacity determination of automotive interior materials.

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