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Recommended Papers for: Heat Transfer

Total Papers Found: 38

Effect of pH and chemical surfactant on thermal conductivity enhancement of Cu-H2O nanofluids 

This study investigates the effect changing the PH of a copper nanofluid and sodium dodecylbenzenesulfonate (SDBS) surfactant concentration has on the thermal conductivity of the nanofluid. The thermal conductivity was determined through the Hot Disk Transient Plane (TPS) method. As the PH is increased the thermal conductivity also increases because higher PH means more surface charges which increase conductivity.  As the SDBS concentration is increased the thermal conductivity slightly increases ...

Author(s): , , , , , ,

Transient plane source method for thermal property measurements of metal hydrides

The purpose of this study was to analyze the thermal properties of metal hydride for its application in hydrogen storage systems. The thermal properties of metal hydride were measured using the Thermal Property Analyzer based on the transient plane source (TPS) method. To verify the accuracy of the TPS method, the thermal properties of stainless steel pellets were measured prior to the metal hydride samples. Unfortunately, the thermal behavior of ...

Author(s): , ,

Macroscopic foam model with effective material properties for high heat load applications

This study used macroscopic equations to determine fluid dynamics and heat transport properties in metallic slip-reaction (SR)-foams for their application in gas turbines. The numerical results were validated by an experimental method that analyzed the physical and mechanical properties of the SR-foams. An apparatus measured the effective thermal conductivity of the foam samples using the transient plane source (TPS) method. Results showed that the foams had low thermal conductivities ...

Author(s): , , , ,

Analysis of flow and heat transfer characteristics of micro-pin fin heat sink using silver nanofluids

Enhancing heat transfer in miniaturized radiators is an important goal for many researchers. In this study, silver nanofluids were employed to improve the transfer of heat in micro-pin fin heat sinks. A thermal constant analyzer measured the thermal conductivity of the silver nanofluid samples using the transient plane source (TPS) technique. Results showed that the addition of silver nanoparticles to the working fluids improved thermal conductivity, but at high concentrations, ...

Author(s): , , , ,

A simplified approach for predicting temperature profile in steel members with locally damaged fire protection

The structural integrity of steel members is jeopardized when fire insulation is partially lost. This paper examined the thermal and mechanical properties of fire insulation under elevated temperatures to further understand thermal gradients and develop preventative safety measures. A thermal analyzer measured the thermal conductivity of the insulation material using the transient plane source (TPS) method. Results show that thermal conductivity increases with temperature because the spray-applied fire resistance materials ...

Author(s): ,