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The thermal conductivity of the paper and cylinder shell, respectively, are relatively important.
The results proved that the thermal conductivity can be improved substantially by...
Therefore, enhancing this phenomenon lies in the thermal conductivity of the used material.
This model of diffuson-mediated thermal conductivity may thus help explain experimental results of ultralow thermal conductivity.
We conclude that the thermal conductivity is estimated with a precision better than 5% and that the precision of the thermal diffusivity estimation depends on the density of the material.
The results also show the effect of humidity on the thermal conductivity.
The obtained thermal conductivity agrees well with the measurements.
Thus, some sort of in situ technique of thermal conductivity determination is needed.
Results are in good agreement with the expected thermal conductivity.
A good agreement is found between the experimental results obtained and the thermal conductivity indicated in the literature for these materials.

Related Questions

What is the formula for thermal conductivity?4 answersThe formula for thermal conductivity is a fundamental concept in the study of heat conduction. Several papers have proposed different formulas to explain thermal conductivities in various materials and systems. Mascali presented a hierarchy of macroscopic models that generalize the Cattaneo equation and derive a new formula for lattice thermal conductivity in semiconductor materials. Nakajima derived an analytical formula for thermal conductivity in tokamaks with coexisting electrostatic and magnetic fluctuations. Xi et al. presented a ubiquitous formula that explains the thermal conductivities of liquids and amorphous solids in a unified way, providing detailed implications on the microscopic mechanisms of heat transfer. Badyda proposed formulas for calculating gas thermal conductivity based on modified Sutherland's formula. These papers contribute to our understanding of thermal conductivity and provide formulas that can be used to calculate it in different materials and systems.
What is the thermal conductivity of an insulation material?5 answersThe thermal conductivity of an insulation material refers to its ability to conduct heat. It is an important parameter in determining the energy efficiency of buildings and other industries that use insulation materials. The thermal conductivity of insulation materials can be influenced by factors such as temperature, moisture content, density, and the type of material used. Studies have shown that the thermal conductivity of insulation materials can increase with increasing temperature and humidity, but the degree of change varies depending on the specific material. Moisture transfer in the building envelope can also have a significant impact on the heat transfer process. Experimental methods, such as the guarded hot plate method, are commonly used to measure the thermal conductivity of insulation materials.
What is the thermal conductivity of KBr?5 answersThe thermal conductivity of KBr has been studied in several papers. The conductivity of KBr:Y crystals has been investigated and found to exhibit a three-stage conductivity behavior in the temperature range of 100-560 °C. The thermal conductivity of KBr solid solutions has also been measured, including binary aqueous KBr solutions and ternary aqueous NaBr + KBr solutions. Additionally, combined measurements of thermally stimulated exo-electron emission and thermally stimulated desorption have been conducted on KBr, revealing the emission of negative charges and desorption of various components. The thermal conductivity of H2O + KBr solutions has been experimentally measured and found to vary linearly with pressure and show a maximum at temperatures between 405 and 417 K. However, a specific value for the thermal conductivity of pure KBr is not mentioned in the abstracts provided.
What is the thermal conductivity of NaF?5 answersThe thermal conductivity of NaF is not explicitly mentioned in the abstracts provided.
How to find thermal conductivity of a material?5 answersThermal conductivity of a material can be determined using various methods. One approach is to measure the thermal conductivity by applying Newton's law of cooling to specimens in the form of a disc. Another method involves using the bolometric effect, where laser beam heating creates a temperature gradient over the nanomaterial, and the resulting change in electrical resistance is used to extract the temperature profile and determine thermal conductivity. Additionally, the ohmic pulse-heating method can be used to investigate thermal conductivity and thermal diffusivity of metals and alloys, particularly in the solid and liquid phases. These methods provide valuable insights into the thermal conductivity of different materials and can be used to characterize their properties.
How do you conduct a thermal conductivity test?8 answers

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