000021388 001__ 21388
000021388 005__ 20170522124352.0
000021388 04107 $$aeng
000021388 046__ $$k2017-05-15
000021388 100__ $$aNagireddy P., D.
000021388 24500 $$aEXPERIMENTAL STUDIES ON FE3O4 NANOFLUID FLOWING THROUGH A CIRCULAR TUBE

000021388 24630 $$n23.$$pEngineering Mechanics 2017
000021388 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021388 506__ $$arestricted
000021388 520__ $$2eng$$aThis study deals with an experimental investigation of Fe3O4-water nanofluid flowing through a circular tube. Flow is maintained in the turbulent region and tube is exposed to constant heat flux along the length. Experiments are conducted to study the entropy generation of nanofluid for different particle volume concentrations varying from 1 % to 6 % and also for the different Reynolds numbers. Measured data from the experimentation is taken as input to calculate the thermal entropy and frictional entropy generation. Finally total entropy generation and Bejan number are calculated and analyzed. Experimentally it is proved that the changes in the thermal and frictional entropy generations are opposite, such a way that, as particle concentration increases thermal entropy generation decreases whereas frictional entropy generation increases. Finally experimental results reveal that there exits an optimum particle volume concentration where the total entropy generation is minimal. The same result has also appended by calculating the Bejan number.

000021388 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021388 653__ $$aNanofluid, Experimental, Entropy generation, Bejan number, Heat transfer.

000021388 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021388 720__ $$aNagireddy P., D.$$iRao Srinivasa, Ch.
000021388 8560_ $$ffischerc@itam.cas.cz
000021388 8564_ $$s1163947$$uhttps://invenio.itam.cas.cz/record/21388/files/0694.pdf$$yOriginal version of the author's contribution in proceedings, page 694, section FLU.
000021388 962__ $$r21225
000021388 980__ $$aPAPER