Journal
THERMAL SCIENCE
Volume 23, Issue 1, Pages 401-410Publisher
VINCA INST NUCLEAR SCI
DOI: 10.2298/TSCI170605150M
Keywords
spiral heat exchangers; thermal analysis; economic analysis; optimal solution; thermoeconomics
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Thermoeconomic analysis of spiral heat exchanger is conducted. Different geometrical parameters, such as outer diameter, plate height, passage gap, etc. are used and varied in a wide range. Detailed thermal and total costs analyses were performed for two spiral heat exchanger with different process fluids (water and thermal oil) with temperature changes, while the wall temperature was kept constant (condensation). The results were shown graphically. It is determined that optimum values of number of entropy generation units correspond to minimum total annual cost. The optimal solution could be found in the recommended range of geometric sizes for defined inlet and outlet temperatures and process fluid-flow rate.
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