Year: 2018 | Month: June | Volume: 5 | Issue: 6 | Pages: 145-150
Optimization of the Inlet Conditions of a Shell and Tube Heat Exchanger
Beneth C. Chukwudi, Martins B. Ogunedo
Department of Mechanical Engineering, Imo State University, Owerri.
Corresponding Author: Beneth C. Chukwudi
This research aimed at optimizing the input conditions of a shell and tube heat exchanger. To achieve this, a CFD analysis was run on the model using Solid Works flow simulation tool in order to generate a series of responses for 20 input variables. The result obtained from the CFD analysis was used to generate an optimization model for maximizing the efficiency of the unit. The result of the CFD operation revealed that when exchange of heat in a shell and tube heat exchanger, is between same fluid type, the efficiency of the unit would largely be influenced by the input variables associated with a lower fluid capacity. The optimized input conditions was found to be 2.5 kg/s, 0.5 kg/s, 0.2 m/s and 0.34 m/s for the cold water inlet mass flow rate, hot water inlet mass flow rate, cold water linear velocity, and the hot water linear velocity respectively. The efficiency of the unit as a result of the optimal values of the inlet condition rose to 86.11% from 4.43% at initial conditions.
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