Abstract
Twist geometry of the annular of shell with circular tube heat exchanger was studied numerically. The analysis includes 3-D simulation for two models using profitable software ANSYS FLUENT 16.0. The analysis conditions for the models which solved was considerd constant of temperature for wall of inner tube, whereas the shell outer wall was insulated. First model involves a straight annular, whereas the second model involves a twist annular. Water was used as fluid flow for both models. Different Reynolds number for annular of heat exchanger namely (500- 6000 with step increase by 500) were employed for both models. The consequences showed annular form is important efficacious preceding the thermal presentation and enhancement with all consequences of twist regime when associated with straight regime excluded growing in input-output temperature of 24.2%, outlet annular temperature of 5.8%, whereas the increasing in Nusselt number was 30.3%, and the enchainment in pressure drop is 28.2% due to centrifugal forces.
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