BibTeX:

@article{IJIRSTV1I10030,
     title={Numerically Study on Heat Transfer Performance of Microchannels Heat Sink with Different Shape by using N-Octane},
     author={Harpreet Singh and Harpreet Singh Randhawa},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={10},
     pages={63--67},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I10030.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

The study of heat transfer characterstics in micro channel heat sinks is an emerging field from the research point of view. The variations in shapes and sizes of micro channel heat sink has led to the increase in heat transfer rate and reduction in pressure drop. Earlier work has been performed on different cross-sections of micro channel heat sink using water as a fluid for heat transfer. The numerical computation is carried out by solving the governing equations along with boundary conditions .The equations for fluid in single phase was solved by using a single domain conjugate problem. The governing equations is discretize in the fluid region using finite-volume method (FVM) with hybrid differencing scheme. The flow field is solved using the Simplex algorithm. The design of the micro-heat sink consists of an array of 11 holes cut in a channel of length 22mm, width 12mm and height 1.5mm. In this paper, we analytically designed a micro-channel heat sink for specific boundary conditions of inlet velocity of 0.1m/s, fluid temperature of 278K and temperature on the left side of 328 K and right side to be adiabatic. The analysis is performed numerically for its validation. The design was tested with different cross sections like rectangular, triangular, hexagonal ,circular and also compared the fluid for no. of channels 9,18 and 27 by using n-octane for heat transfer coefficient at reynold number range 100-1000.

Micro Channel Heat Sink, Rectangular, Triangular, Hexagonal, Circular