Sentence examples for twisted ratio from inspiring English sources

Both heat transfer coefficient and friction factor increase with the decreasing of twisted ratio.

Moreover the effect of the twisted ratio on the overall volumetric mass transfer coefficient (KLa) and the extraction efficiency (E) was studied.

As far as the twisted ratio has direct effects on extraction efficiency and pressure drop, it was used as a design variable for determining the most appropriate channel geometry.

Best thermal performance is observed for twisted tape with twist ratio of 7.5.

The serrations on two sides of the twisted tape with twist ratio of 1.56, 1.88, 2.81 or ∞ are the square-sectioned ribs with the identical rib-pitch and rib-height.

The study involves the dimensionless parameters: Reynolds number (Re), pitch ratio (PR), twist ratio (TR), and twisted tape number (N).

A twisted tape with a twist ratio of 2 or 4 was inserted into the circular tube to induce the swirl flow.

Heat transfer and friction factor enhancement of 0.6% volume concentration of nanofluid in a plain tube with a twisted tape insert of twist ratio H/D = 5 is 51.88% and 1.231 times compared to water flowing in a plain tube under same Reynolds number.

The local Nusselt number and Fanning friction factor increase as the twist ratio decreases in the tube fitted with smooth or serrated twisted tape.

Twisted-tape insert (with the twist ratio y=4.12), the straight-tape insert, and the combined turbulator insert (the internal twisted tape with the twist ratio of 180° y=2.16 and an external tape, which spirally winded on an internal tape, with longitudinal pitch H360°=110 mm and the relative height of a tape (rib) e/D0=0.098 0.2) were investigated.

At a given twist ratio, higher values of the friction factor and the Nusselt number were observed for smaller annulus parameters (ratio of cross section area of square twisted duct to cross section area of circular pipe).