Experimental study on Al2O3 /H2O nanofluid with conical sectional insert in concentric tube heat exchanger

ABSTRACT

A parallel flow heat exchanger containing conical sectional inserts with three different pitch ratio (i.e., 1, 2, and 3) in a different orientation to the flow direction of the working fluid had been fabricated. Al₂O₃ with different volume concentration, i.e., 0%, 2%, and 4% nanoparticles (90 nm size) were added to De-ionized water as the working fluid. The combined effect of the Nanofluid and the inserts in different orientations was studied. It was concluded that the insert, flow direction, and Nanofluid volume concentration provided most augmented heat transfer and enhanced the thermal properties.

KEYWORDS:

• Nanofluids
• conical insert
• thermal conductivity
• heat transfer
• heat exchanger

Notations

Table

Additional information

Notes on contributors

M. Arulprakasajothi

M. Arulprakasajothi working as Associate Professor at Veltech University. He has more than 13 years experience in teaching and research experience. he is doing research in the area of Energy, Emission and Environment.

N. Dilip Raja

N. Dilip Raja working as Associate Professor at Veltech University. He has more than 13 years experience in teaching experience.

Beemkumar N.

N. Beemkumar working as Associate Professor at Jain univerity. He has more than 10 years experience in teaching and research experience. He is doing research in the area of Thermal energy storage and heat transfer.

K. Elangovan

K. Elangovan Working as Dean Research at Er. Perumal Manimegalai College of Engineering. He has more than 16 years experience in teaching and research experience. He is doing research in the area of Nanofluids,  3D printing and Composite material.