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Recommended Papers for: Asghari Maqsood

Total Papers Found: 6

Transient plane source (tps) sensors for simultaneous measurements of thermal conductivity and thermal diffusivity of insulators, fluids and conductors

This article describes the design, theory, advantages, and limitations of the TPS technique with a modified bridge. It also describes testing that has been done using the technique on a variety of solid materials from temperatures of 77 K to 1000 K. It was found that at any temperature, the testing was highly accurate, with a deviation of less than 2% when compared to recommended values....

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Chemical Composition, Density, Specific Gravity, Apparent Porosity, and Thermal Transport Properties of Volcanic Rocks in the Temperature Range 253 to 333 K

The density related properties (specific gravity, density, apparent porosity), and thermal transport properties were determined for diorite and granite rocks taken from the Shewa-Shahbaz Garhi volcanic complex, Pakistan. All measurements were made at varying temperatures from 253-333 K to determine the effect of temperature on the properties. It was found that all of the properties investigated depended on the chemical composition of the rock samples. For a given sample, the ...

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Thermal conductivity of ceramic fibres as a function of temperature and press load

The transient plane source (TPS) technique was used to measure the thermal conductivity of three ceramic fibres with varying amounts of aluminium content. Specifically, the effect of temperature, press load per unit area and the aluminium content on thermal conductivity was studied. The three ceramic fibres studied were VK-60, ABK and Nextel/VK-80. It was experimentally determined that an increase in aluminium content resulted in decreased thermal conductivity of the ...

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Low-temperature thermal conductivity measurement apparatus: design assembly, calibration and measurement on (Y123, Bi2223) superconductors

The transient plane source (TPS) technique was used for the measurement of thermal properties of superconductors at low temperatures. The superconductors explored include Y123 and Bi2223. One of the main goals of the work was to develop a system where measurements could be made in the temperature range from 84 - 293 K....

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A modified transient method for an easy and fast determination of thermal conductivities of conductors and insulators

The authors make some kind of modification to the TPS technique and then call it the advantageous TPS (ATPS) technique, which apparently has an improved experimental arrangement. It is also claimed that there is more automation in data acquisition, better accuracy and easier calculations. Fused quartz, low carbon steel and silver chloride crystals are studied with the ATPS technique, with the use of liquid nitrogen to cool the silver chloride ...

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