Analysis of Entropy Generation Rate During Non-Adiabatic Ice Slurry Flow in Pipes

Authors : Beata Niezgoda-żelasko

Pages : 25-32

Doi:10.5541/ijot.675574

View : 17 | Download : 9

Publication Date : 2020-02-29

Article Type : Research

Abstract :The paper focuses on the entropy generation rate minimization during the flow of ethanol-based ice slurry through straight pipes with a circular and rectangular cross-section. The authors’ original equations for calculating ice slurry flow resistances and heat transfer coefficients were used to determine the impact of the mass fraction of ice, ice slurry flow velocity and heat flux density on the entropy generation rate values observed during flow through pipes. A dimensionless relationship was proposed to determine the interdependency between flow velocity and mass share of ice for which the entropy values were at the minimum level.
Keywords : ice slurry, , entropy generation rate, , melting process, , tube flow, , slit channel