The electrohydrodynamic effect to natural convection inside the vertical channels is numerically investigated by computational fluid dynamics technique. The range of parameters considered are 10=Ra=10, 7.5=V0=17.5 kV, and 2=aspect ratio=10. Flow and temperature distributions are affected with supplied voltage at the wire electrodes, and the heat transfer enhancement is significantly influenced ...

Heat transfer enhancement by surface modification has been extensively studied in the last twenty years. However, there remains a large discrepancy among researchers on performance of enhanced surfaces even for same fluid and preparation technique. The reasons this are not understood discussed past papers, including paper reviews. Part II two-part aims to present detailed assessment pool boilin...

Stirling engine as an external combustion with high efficiencies and able to use any types of heat source is the best candidate recover waste exhausted gas by converting it into power. Thus, in this study was introduced evaluate possibility recovering from biomass produce For reason, Computational Fluid Dynamic (CFD) simulation test performed design initial computational model for low temperatu...

Pool boiling heat transfer characteristics of Al2O3 -water nanofluids is studied experimentally using a NiCr test wire of 36 standard wire guage diameter. The experimental work mainly concentrated on (1) change of critical heat flux with different volume concentrations of nanofluid and (2) flow visualization of pool boiling using a fixed concentration of nanofluid at different heat flux values....