In this experimental work, heat transfer and thermal performance factor of double-pipe exchanger pipes with rotated inclined elliptical (RIE) inserts are examined. The rotation angle the turbulators (?), slant (?), perforation diameters (dp) were in range 0????90?, 15????25?, 0.5mm?dp?1.5mm, respectively. perforations can substantially intensify flow unsteadiness disturb boundary layer to impro...

Enhancement of heat exchangers with the usage inserts which creates turbulence in fluid flow by enhancing transfer rate is an appealing area for researchers to develop efficient and compact exchanger low expenses. Present work deals computational investigation on circular tube ϕ� shaped ring taken as enhancer better experience transfer. The geometric dimensions insert are 68 mm outer diameter i...

With the growing need for more energy, it is imperative to design efficient heat exchangers that are simpler, cheaper manufacture, have higher transfer rates, and low in pressure drop. One of these double tube exchanger used many industries. From past present, caught attention researchers because their simplicity wide range applications. This review paper contains a critical analysis impact dif...

OBJECTIVE A growing exercise culture has lead to an increase in the use of off-the-shelf heel inserts. While there are a variety of designs in a spectrum of cost ranges, probably the ease of availability and cost would mainly determine the choice of purchase. This study was designed to determine whether expensive designs provide better pressure attenuation under the heel than their less expensi...

Laboratorians and clinicians often rely on package inserts of diagnostic tests to assess their accuracy. We compared test accuracy for tuberculosis diagnostics reported in 19 package inserts against estimates in published meta-analyses and found that package inserts generally report overoptimistic accuracy estimates. However, package inserts of most tests approved by the U.S. Food and Drug Admi...

Coated tool inserts can be considered as the backbone of machining processes due to their wear and heat resistance. However, defects of coating can degrade the integrity of these inserts and the number of these defects should be minimized or eliminated if possible. Recently, the advancement of coating processes and analytical tools open a new era for optimizing the coating tools. First, an over...