TY  - JOUR
EP  - 8337
PB  - Universiti Malaysia Pahang
SN  - 22298649
N1  - cited By 1
SP  - 8326
TI  - Heat Transfer Rate Optimisation of Ionanofluid Based Heat Sink Using ANSYS
AV  - none
JF  - International Journal of Automotive and Mechanical Engineering
A1  - Bakthavatchalam, B.
A1  - Habib, K.
A1  - Hussein, O.A.
A1  - Saidur, R.
A1  - Irshad, K.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103681708&doi=10.15282%2fijame.17.4.2020.06.0629&partnerID=40&md5=7a25d93f9b2ec5ff7542be24b695563a
VL  - 17
Y1  - 2020///
N2  - Heat dissipation of various electrical and electronic devices has been a significant concern in the current years of modernisation. Many researchers proved that a liquid-cooled microchannel heat sink (MCHS) is an effective way of removing high heat load. Due to ionic liquidsâ?? unique properties such as negligible volatility, non-flammability, high thermal stability, and ionic conductivity, this liquid is combined with nanofluids to synthesise a new class of potential fluids termed Ionanofluids (ionic liquid-based nanofluids). In this research, a numerical simulation of fluid flow and heat transfer characteristics of MWCNT (Multiwalled Carbon Nanotubes) based Ionanofluids as a coolant in a rectangular-shaped microchannel heat sink is analysed. The Two-step method is used for preparing the studied Ionanofluids consisting of 0.5 wt. of MWCNT nanoparticles ultra-sonicated with a mixture of propylene glycol and 1-Butyl-3-methylimidazolium chloride (BmimCl-ionic liquid) fluids. Copper micro channelled heat sink comprising 1 m channel height, 25 µm of channel diameter, and 0.7 m channel width is modelled and simulated with ANSYS-Fluent. The results showed that the heat transfer coefficient increases about 11.4% while the thermal resistance decreases about 15.18% by using the proposed ionanofluids with the concentration of 0.5 wt.% at Re=2000 compared with that of an MCHS with propylene glycol. Moreover, the pressure drop along the studied MCHS increased up to a maximum of 30 kPa for higher heat gradients. Ionanofluids decreased the thermal resistance and temperature difference between the heated surface of the MCHS and Ionanofluids inlet to a greater extent when validated with pure base fluid and previous studies. From the simulated results, a better cooling performance is observed with Ionanofluids compared to pure propylene glycol (PG) for the proposed microchannel heat sink. © The Authors 2020. Published by Penerbit UMP. This is an open access article under the CC BY license.
IS  - 4
ID  - scholars13604
KW  - Chlorine compounds; Flow of fluids; Glycols; Heat sinks; Heat transfer; Ionic liquids; Microchannels; Multiwalled carbon nanotubes (MWCN); Nanofluidics; Polyols; Propylene
KW  -  1-Butyl-3-methylimidazolium chloride; Cooling performance; Fluid flow and heat transfers; Heat transfer rate; High thermal stability; Micro channel heat sinks; Rectangular-shaped; Temperature differences
KW  -  Heat resistance
ER  -