Abstract
In this paper to study, a numerical analysis of a helical coil (tube-in-tube) heat exchanger is carried out for various B.Cs (Boundary Conditions), and the optimal heat transfer conditions are identified for various D/d ratios. For analysis purposes, the turbulent flow model with counterflow heat exchanger is taken into consideration. For various boundary conditions, the impact of D/d ratio on heat transfer rate and pumping power is observed. The D/d ratio varies between 10 and 30 with an interval of 5-point gap. For various D/d ratios, it is possible to determine the Nu (Nusselt number), friction value, power, and LMTD variation of the inner fluid with respect to Re (Reynolds number).
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