Heat transfer enhancement techniques are popularly used in various engineering
applications such as heat exchanger, air conditioning, chemical reactors and refrigeration …

Passive enhanced heat transfer technology considerably influences helically coiled tube
(HCT) heat exchangers (HEs), which are typically used in nuclear power plants. Numerical …

For the aim of increasing the heat transfer enhancement, a hybrid method in which active
and passive heat recovery techniques have been used together. The usage of nanofluid …

The present study dealt with the numerical simulation of nanofluid flow in a double tube heat
exchanger equipped with twisted tape. Alumina/water nanofluid and pure water are …

In this communication, the computational fluid dynamics (CFD) technique has been
employed to study the influence of coiled wire inserts on the Nusselt number, friction …

Heat transfer and pressure drop in helically coiled tube with spherical corrugation are
investigated by a three-dimensional numerical simulation. Different geometrical parameters …

Numerical method is used to investigate convective heat transfer enhancement mechanisms
in a tube with a new kind of twined coil insert. The numerical results are examined by the …

In this paper, the heat transfer and flow behavior of a circular tube fitted with rectangular
winglet vortex generators (RWVGs) are investigated numerically and experimentally with …

The numerical and experimental data of the helically coiled-twisted trilobal tube (HCTTT)
heat exchanger are compared, the results present that, due to more intense secondary flow …

Using extended surfaces or turbulators on the absorber plate (AP) is one of the great ways to
enhance the thermal performance of solar air heaters (SAHs). Although a large number of …