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Recommended Papers for: Heat Transfer

Total Papers Found: 38

Porous materials as open volumetric solar receivers: Experimental determination of thermophysical and heat transfer properties

Previously, the thermal conductivity of extruded monoliths, ceramic foams and metal structures were determined for their application as open volumetric receivers in concentrated solar radiation. Volumetric receivers contain a porous material, which is ultimately heated through solar radiation. The pores allow ambient air flow through the material, which will eventually reach a temperature of 700˚C. This heat is then used to feed the steam turbine process. Understanding the effect of ...

Author(s): , , , ,

Investigation of pH and SDBS on enhancement of thermal conductivity in nanofluids

This study aimed to improve the heat transfer capabilities of water-based nanofluids, by varying the concentration of sodium dodecylbenzene sulfonate (SDBS), a chemical surfactant, as well as by altering the pH. It is said that the thermal conductivity and stability of nanofluids are directly related and are also greatly influenced by pH and chemical surfactant concentration. The water-based nanofluids displayed higher thermal conductivity values as the pH and SDBS concentration ...

Author(s): , ,

Thermal Conductivity Enhancement Dependent pH and Chemical Surfactant for Cu-H2O Nanofluids

Thermal conductivity of heating and cooling fluids with added nanoparticles dubbed 'nanofluids' are used as potential to improve the efficiency of heat transfer fluids using a thermal constants analyser. The Thermal conductivity enhancements of Cu-H2O nanofluids are dependent on the weight fraction of nanoparticles, pH values and sodium dodecylbenzenesulfonate (SDBS) surfactant concentration of nano-suspensions. Combining both the pH and chemical surfactant is recommended to improve the thermal conductivity for ...

Author(s): , , , , ,