Net-exergetic, hydraulic and thermal optimization of coaxial heat exchangers using fixed flow conditions instead of fixed flow rates

Abstract Previous studies optimized the dimensions of coaxial heat exchangers using constant mass flow rates as a boundary condition. They show a thermal optimal circular ring width of nearly zero. Hydraulically optimal is an inner to outer pipe radius ratio of 0.65 for turbulent and 0.68 for lamina...

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Bibliographic Details
Main Authors: Tobias Blanke, Markus Hagenkamp, Bernd Döring, Joachim Göttsche, Vitali Reger, Markus Kuhnhenne
Format: Article
Language:English
Published: SpringerOpen 2021-07-01
Series:Geothermal Energy
Subjects:
Online Access:https://doi.org/10.1186/s40517-021-00201-3