Numerous studies reveal that the heat transfer capability of
thermal systems has been significantly enhanced with the use of
nanofluids. On the other hand, the hazardous nature of the
nanoparticles is evident. Recent studies clearly indicate that the
nanoparticles affect the human health as well as the
environment. Therefore environmentally safe bio-nanofluids
are currently under investigation. In this study, a novel heat
transfer fluid with bio-nanomaterial is prepared and its natural
convection heat transfer characteristics are studied. The bionanomaterial
considered in this study is powdered mango bark.
A two-step process is employed to prepare stable nanofluids.
The effect of particles concentration, the temperature difference
between the hot and cold side, and Rayleigh number on the
natural convection heat transfer process is studied. The
experimental results show that the natural convection process is
deteriorated with the addition of mango nanoparticles in deionized
Papers presented at the 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Portoroz, Slovenia on 17-19 July 2017 .