Variation in the enhancement of heat transfer with different fluids using twisted tape inserts

Abstract

This research intends to look into the transformation of heat, factors affecting the friction, and characteristics of the efficacy ratio for the ratio of twist as 3.0, 4.4, and 6.0, independently of a concentric pipe heat exchanger with and without trapezoidal section twisted tape insert. For different Reynold’s Number (Re) ranges of 200-2000, 800-2000, and 2000-12000, experimentation was accomplished to find the transformation of heat energy and aspect of factors of the friction of coaxial tubes. The investigated data from the tube without an insert were compared to the conventional correspondence to assure that the investigation output was valid. The findings of the trapezoidal section twisted tape tube has been in contrast to the simple tube’s results. The consequences reveal that the trapezoidal section twisted tape appreciably improves heat transmission along with friction coefficient. The Trapezoidal section twisted tape enhancement transmission of heat was once additionally judged to be practical because the realized output ratio is maximum than unity. The twisted tape has a greater Nusselt Number (Nu), frictional influence, and overall efficacy attainment than a plain tube, by the research. According to the tapes that have been tested, the tapes with the lowest twist ratio 3.0 are greater fine than the tapes with the other ratio of twist, as a consequence of the fact that the tape with the lowest ratio of twist is the most environmentally friendly at supplying heat augmentation.