Turbulent heat transfer enhancement in a heat exchanger using helically corrugated tube

A numerical study on heat transfer enhancement and the flow structure in a heat exchanger tube with discrete double inclined ribs

“…14. Some widely used enhanced tubes in practical applications, such as internally finned tube [22], transversally grooved tube [23], helically corrugated tube [24], discrete corrugated tube [8] and some tube inserts like short-length twisted tape [25], coiled square wires [26] and twisted tape and wire coil turbulators [27] are selected to perform the comparisons. It is evident that the proposed enhanced tube provides considerably higher overall thermal performance than the conventional grooved tubes, finned tube and tube inserts but slightly lower performance than the helically corrugated tube and discrete corrugated tube.…”

Numerical Simulation of Bubble Free Rise after Sudden Contraction Using the Front-Tracking Method

“…Pethkool et al [4] experimentally studied the heat transfer performance of helically corrugated tube and got the empirical formula. Kareem et al [5] studied the three-start spirally corrugated tube by experiment and simulation, he said that this geometry with a creative spiral corrugation profile can improve the heat transfer significantly with reasonable increase in friction factor.…”

Thermal and fluid flow first-principles numerical design of an enhanced double pipe heat exchanger

“…The literature involving corrugated double pipe heat exchangers is virtually exclusively concerned with experimentation. Representative among these are [20,21].…”