Graduation Semester and Year




Document Type


Degree Name

Master of Science in Mechanical Engineering


Mechanical and Aerospace Engineering

First Advisor

Mun Seung You


This research aims at investigating the effect, heater size, pressure, heater orientation and effect of anti-freeze addition on critical heat flux of nanofluids which have shown large potentials as coolants for high power generating uses. Nanofluids have shown about ~180 - 200% enhancement in the critical heat flux values. The effect of heater size employing three different sized heaters yielded about ~180% enhancement over pure water. The effect of pressure on critical heat flux investigated by testing nanofluids at three pressures showed ~240% increase in critical heat flux. Surface orientation effect on critical heat flux carried out for a 2 × 2 cm heater at five orientations revealed about ~120% enhancement at 150°. Two commercially used antifreezes, ethylene glycol and propylene glycol were used to study the effect of anti-freeze addition to nanofluids. Alumina -water nanofluid of 0.025 g/L concentration mixed with the antifreezes at five compositions by volume showed a maximum enhancement of about ~120% for ethylene glycol and ~70% for propylene glycol.


Aerospace Engineering | Engineering | Mechanical Engineering


Degree granted by The University of Texas at Arlington