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Estimation Of Optimum Pipe Diameter And Economics For A Pump And Pipeline System

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1997 Annual Conference


Milwaukee, Wisconsin

Publication Date

June 15, 1997

Start Date

June 15, 1997

End Date

June 18, 1997



Page Count


Page Numbers

2.183.1 - 2.183.6



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Paper Authors

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Deran Hanesian

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Angelo J. Perna

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NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Session 1613

Estimation of Optimum Pipe Diameter and Economics for A Pump and Pipeline System

Deran Hanesian, Angelo Perna New Jersey Institute of Technology


The concepts of engineering design optimization, and economics were introduced and integrated into the junior Chemical Engineering Fluid Flow course by assigning a computer project to the students. The course is a structured three credit hour course which meets twice per week for eighty minute periods. Students are given the computer problem and asked to analyze and optimize the design of the piping system in approximately the fourth week (eighth period) of the fourteen week semester well before they have all of the theoretical background to solve the problem. All the basic principles to solve the problem are covered by the tenth week of the semester. The problem solution is submitted to the instructor in report form and is due the last period of the semester. The assignment is worth ten percent of the final grade. Students are enthusiastic about the assignment, the application of their theoretical knowledge to a practical problem, and see it as an introduction to “real life” engineering.


At NJIT, the Transport Operations I Chemical Engineering course is given in the first semester of the junior year. The course focuses on fluid dynamics and the practical aspects of fluid flow. The course covers Molecular Transport, Viscosities, Shear, Gradients, Non-Newtonian Behavior, Laminar and Turbulent Flow, Shell Balances, the Hagen-Poiseuille equation, Flow in Pipes and Fittings, Losses Caused by Expansion and Contraction, Conservation of Mass, Continuity equations, Mechanical Energy Balances, Energy Balances, Flow Measurement, Flow past immersed objects, Flow in Packed Beds, Filtration and Fluidization.

A major emphasis is given to flow through piping and fittings. To enable students to consolidate their theoretical knowledge a complex optimization computer problem is assigned in the fourth week of the semester. The students continued to acquire the required background until the tenth week of the semester when all of the theory needed to solve the problem has been discussed. The problem is due at the end of the semester (fourteenth week).

One of the computer problems assigned is shown in this paper. The problem is a variation, with updated cost data, of a problem one of the authors was assigned as an undergraduate. Of course, in those years, the problems were solved using a slide rule and the tedious trial and error methods. Today, the same problems are solved easily by our students using the latest computer technology.

Hanesian, D., & Perna, A. J. (1997, June), Estimation Of Optimum Pipe Diameter And Economics For A Pump And Pipeline System Paper presented at 1997 Annual Conference, Milwaukee, Wisconsin. 10.18260/1-2--6553

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