performance evaluation of nano-diamond - engine oil nano-fluid through a laminar flow inside a horizontal micro-fin tube

Laminar Flow Heat Transfer of a Pseudoplastic Fluid through a Double Pipe Heat Exchanger

An experimental study was carried out to obtain the mean convective heat transfer coefficient of aqueous carboximethyl cellulose (CMC) solutions in double-pipe heat <span style="font-size: 10pt; color:...

A Cfd Analysis of the Performance of Pin-fin Laminar Flow Micro/meso Scale Heat Exchangers

Convective Heat Transfer of Oil Based Nanofluid Flow Inside a Circular Tube

Abstract   An empirical investigation was carried out to study convective heat transfer of nanofluid flow inside an inclined copper tube under uniform heat flux condition. Required data are acquired for laminar and hydrodynamically fully developed flow inside round tube. The stable CuO-base oil nanofluid with different nanoparticle weight fractions of 0.5%, 1% and 2% was produced by means of ul...

Controlling flow at the micro- and nano-scale in zebra-patterned micro- and nano-fluidic devices

When ions are driven by an external electrostatic field, their net motion will generate a net flow in the surrounding fluid called electro-osmotic flux. In microfluidic devices, the onset of such a flux ultimately depends on the effective interaction between the fluid and the inner walls of the channel. In particular novel scenarios can occur when the channel properties are not homogeneous, as ...

Controlling nitrogen migration through micro-nano networks

Nitrogen fertilizer unabsorbed by crops eventually discharges into the environment through runoff, leaching and volatilization, resulting in three-dimensional (3D) pollution spanning from underground into space. Here we describe an approach for controlling nitrogen loss, developed using loss control fertilizer (LCF) prepared by adding modified natural nanoclay (attapulgite) to traditional ferti...

Flow Boiling Heat Transfer and Pressure Drop of R1234ze(E) and R32 in a Horizontal Micro-Fin Tube

In the present study, the flow boiling heat transfer of R1234ze(E), R32 and zeotropic mixture R1234ze(E)/R32 (50/50 mass%) in a horizontal micro-fin tube is experimentally investigated to clarify the pressure drop and heat transfer characteristics. Tested micro-fin tube is made of copper, and its geometry is as follows, 6.00 mm in outer diameter, 5.21 mm in mean inside diameter, 0.26 mm in fin ...