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Title

Determination of the Optimal Piping DiameterThrough EntropyGeneration Minimization

Organization

Department: Mechanical Engineering

University: Idaho State University College: Science & Engineering Department: Mechanical Engineering 12

Document Attachments

Resource	Length	Width	Thickness
Paper	0	0	0

Specimen Elements

City

Pocatello

Coverage

Unknown to Unknown

Creator

Taylor Sandow

Publisher

Idaho State University

Type

Thesis

Is Complete

No

Date Published

12/9/2019

Archive

digital

City: Pocatello

Degree

Master

Document Attachments

Abstracts

A heat exchanger with constant heat flux is selected to apply a method of optimization throughentropy minimization to determine the diameter of the system. This entropy minimization is examinedfor the dependency upon the assumptions required to make during the analysis for the friction factorand Nusselt number. The first approach is to use the differential method proposed by Dr. Adrian Bejanwhile examining various assumptions. The second approach is to use a direct computation of theentropy generated by analyzing the entire heat exchanger while also examining various assumptions.These resulted in various diameters that mathematically are the optimum, but had an 85%variation based upon the different assumptionsand methods of calculation. This indicates that themethod of entropy minimization as an optimization method is too dependent upon the requiredassumptions for the friction factor and Nusselt number to be a reliable method of design.Key Words: Entropy Generation, Minimization, Heat Exchanger