Effect of time dependent nanoclusters morphology on the thermal conductivity and heat transport mechanism of TiO2 based nanofluid

2016 ◽  
Vol 53 (6) ◽  
pp. 1873-1892 ◽  
Author(s):  
Lal Kundan ◽  
Soumya Suddha Mallick ◽  
Bonamali Pal
Keyword(s):  
Thermal Conductivity ◽  
Heat Transport ◽  
Transport Mechanism ◽  
Time Dependent ◽  
Heat Transport Mechanism

Is there a Lower Limit to the Thermal Conductivity of Solids?

1991 ◽  
Vol 234 ◽  
Author(s):  
David G. Cahill ◽  
R. O. Pohl
Keyword(s):  
Thermal Conductivity ◽  
Random Walk ◽  
Heat Transport ◽  
Lower Limit ◽  
Amorphous Phase ◽  
Elastic Energy ◽  
Transport Mechanism ◽  
Disordered Crystals ◽  
Heat Transport Mechanism

ABSTRACTThe thermal conductivity of various systematically disordered crystals has been measured. It has been found that the lowest thermal conductivity above ∼100 K that can be achieved is equal to that of the amorphous phase. This experimentally observed lower limit of the thermal conductivity can be described with a model proposed by Einstein in which the elastic energy propagates in a random walk among the atoms which are vibrating with random phases, and which is called the minimum thermal conductivity. This heat transport mechanism resembles somewhat that commonly accepted in liquids.

Entropy generation (irreversibility) associated with flow and heat transport mechanism in Sisko nanomaterial

2018 ◽  
Vol 382 (34) ◽  
pp. 2343-2353 ◽  
Author(s):  
M. Ijaz Khan ◽  
Tasawar Hayat ◽  
Sumaira Qayyum ◽  
Muhammad Imran Khan ◽  
A. Alsaedi
Keyword(s):  
Heat Transport ◽  
Entropy Generation ◽  
Transport Mechanism ◽  
Heat Transport Mechanism

Self-Defocusing Effects in an Ethanol Solution of Chlorophyll

1997 ◽  
Vol 06 (02) ◽  
pp. 181-192
Author(s):  
R. Dykstra ◽  
R. G. Mcduff ◽  
N. R. Heckenberg
Keyword(s):  
Heat Transport ◽  
Transport Mechanism ◽  
Optical Nonlinearity ◽  
Ethanol Solution ◽  
Kerr Medium ◽  
Thermally Induced ◽  
Thermal Medium ◽  
Heat Transport Mechanism ◽  
Good Agreement

The thermally induced optical nonlinearity in a chlorophyll ethanol solution is examined. A theory is presented which shows good agreement with experiment. The theory models an optically thick but physically thin medium whose only heat transport mechanism is conduction. An average n2 was found for the medium which corresponds well with previous results but the thermal medium is shown to be fundamentally different from a Kerr medium.

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