Metallic inserts are well-recognized in modern research as efficient passive thermal
performance enhancement methods. However, only scarce studies examined conical rings …

This article presents recent developments in flow configurations with built-in corrugated
structures at the walls of the channels towards the improvement of convective transport of …

This study investigates the nanofluid turbulent flow due to the presence of helical tapes in
solar flat plate collectors. The influence of various twisted tap (TT) and inlet velocity on the …

In recent years, considerable effort has been dedicated to the development of highly efficient
thermoelectric generators for waste heat recovery and thermoelectric power generation. In …

Herschel–Bulkley non-Newtonian fluid flow and heat transfer are commonly encountered in
chemical processing industries, such as pharmaceutical, food, oil, and gas industries. Unlike …

The paper presents a critical review of the performance evaluation criteria (PEC) developed
by Webb (Webb, 1981). These criteria evaluate the benefits that could be obtained in heat …

The heat transfer performances of pipes with twisted tape inserts having periodically
spherical dimple-protrusion patterned walls are numerically investigated by Ansys Fluent …

A hybrid technique by using TiO 2/water nanofluid together with loose-fit delta-wing twisted
tape (LTT-W) was employed for heat transfer enhancement. Experiments encompassed the …

Features of the tubular type of heat exchanger were examined experimentally in the current
study. A rig is fitted with a novel insert as a negative heat transfer increase technique. The …

The solar thermal collectors are widely used for several applications nowadays. The
improvement of their thermal performance helps to mitigate the initial costs and sizes of …