Comparative Experimental Study and Performance Intensification of Heat Exchanger by 55° Corrugated Tube and Twisted Tape Inserts of Pitch Length 1.5

The principal objective of this comparative experimental analysis is to determine the straight 55° corrugated steel tube heat exchanger is more beneficial to utilize than a standard straight steel tube heat exchanger. Straight tubes make heat exchanger tube fabrication easier. As a result, helical tubes and numerous other smaller tube forms of heat exchangers are inferior to straight tube heat exchangers. Most research on heat transfer coefficients is done for constant heat flow or constant wall temperature, while more recent work considers fluid-to-fluid heat exchange. In parallel flow and counter flow arrangements of straight plain steel tube, straight 55° corrugated steel tube, straight steel tube with insert heat exchangers, and straight 55° corrugated steel tube with insert, the effectiveness, overall heat transfer coefficient, effect of hot water flow rate on effectiveness when cold water flow rate kept constant were studied and compared. At the heat exchanger's steady state, all measurements were made. The outcome is displayed graphically for the two tubes' respective efficaciousness under various flow configurations. When the cold-water flow is fixed at 45 lph and the hot water mass flow rate fluctuates at 15,30,45,60, and 75 lph the heat exchanger's effectiveness drops up to 45 lph and increases up to 75 lph for both straight steel and corrugated tube heat exchangers; the straight steel tube heat exchanger's effectiveness is better than the other tube heat exchangers. On the other hand, the heat transfer rate of the heat exchanger steadily increases when the mass flow rate of the hot water is varied and the cold water remains constant.