1st Edition

Engineering Economics and Economic Design for Process Engineers

By Thane Brown Copyright 2006
    368 Pages 79 B/W Illustrations
    by CRC Press

    Engineers often find themselves tasked with the difficult challenge of developing a design that is both technically and economically feasible. A sharply focused, how-to book, Engineering Economics and Economic Design for Process Engineers provides the tools and methods to resolve design and economic issues. It helps you integrate technical and economic decision making, creating more profit and growth for your organization. The book puts methods that are simple, fast, and inexpensive within easy reach.

    Author Thane Brown sets the stage by explaining the engineer’s role in the creation of economically feasible projects. He discusses the basic economics of projects — how they are funded, what kinds of investments they require, how revenues, expenses, profits, and risks are interrelated, and how cash flows into and out of a company. In the engineering economics section of the book, Brown covers topics such as present and future values, annuities, interest rates, inflation, and inflation indices. He details how to create order-of-magnitude and study grade estimates for the investments in a project and how to make study grade production cost estimates.

    Against this backdrop, Brown explores a unique scheme for producing an Economic Design. He demonstrates how using the Economic Design Model brings increased economic thinking and rigor into the early parts of design, the time in a project’s life when its cost structure is being set and when the engineer’s impact on profit is greatest. The model emphasizes three powerful new tools that help you create a comprehensive design option list. When the model is used early in a project, it can drastically lower both capital and production costs.

    The book’s uniquely industrial focus presents topics as they would happen in a real work situation. It shows you how to combine technical and economic decision making to create economically optimum designs and increase your impact on profit and growth, and, therefore, your importance to your organization. Using these time-tested techniques, you can design processes that cost less to build and operate, and improve your company’s profit.

    Engineering Economics

    The Economic Side of Engineering


    The Engineer’s Role in Profit Creation
    Economic Viability
    Project Authorization
    Types of Projects
    Funding
    Investments, Revenues, Expenses, and Profit
    Economic Work After Funding
    Corporate Cash Flow
    Summary
    Problems and Exercises
    References

    Time Value of Money


    Cash Flow Diagrams
    Interest
    Present Worth, Future Worth, and Annuities
    Before- and After-Tax Considerations
    Inflation and Indices
    Summary
    Problems and Exercises
    Additional Topic: Compounding Other Than Annually
    Problems and Exercises

    Estimating Investments


    Capital Costs Defined
    Estimating Capital
    Estimating the Other Investments
    Summary
    Problems/Exercises
    Additional Topic: Types of Estimates
    References

    Estimating Production Cost


    Production Costs Defined
    Fixed and Variable Costs
    Estimating Methods
    Summary
    Problems and Exercises
    Additional Topic: Product Cost and General Expense

    Economic Evaluation Methods


    Evaluation Methods
    Other Methods
    Analysis of Risk
    Summary
    Problems and Exercises
    Additional Topics: Creating Guidelines for Rapid ROI Calculation
    What To Use Constant Dollars Or Actual Dollars

    Economic Design


    Economic Design: A Model
    Defining Economic Design
    The Economic Design Model
    Summary
    Reference

    Defining Objectives


    Why Define Objectives?
    What Do Good Objectives Look Like?
    An Example
    Project objectives
    How to Get Input from the Key Stakeholders (and Ensure it Is Correct)
    Summary
    Problems and Exercises
    References
    Creating Options: Flow Sheet Development.
    Design (or Project) Phases
    Flowsheet Development
    Summary
    Problems and Exercises
    Additional Topic: Types of Flowsheets

    Creating Options: Creating the List


    General Methods
    Process Development Methods
    Feasibility and Conceptual Engineering
    Summary
    Problems and Exercises
    References

    Option/Alternate Analysis


    Technical Feasibility Comes First
    Economic Analysis Methodology
    The Economics of Selecting Equipment
    The Economics of Plant Siting
    Summary
    Problems and Exercises
    Additional Topic: How to Decide Whether to Install Capacity for an Assumed Future Need
    References

    Economic Design Case Studies


    Optimal Cooling Water Temperature in a Cooler
    Optimal Catalyst Usage in a Reactor/Filter System
    Optimal Heat Recovery in a Heat Exchanger Loop
    What to Choose: A Grass-Roots Plant or the Expansion of an Existing Plant
    Optimum Number of Plants
    Appendices
    Appendix I Definitions
    Appendix II Indices
    Appendix III Compound Interest Tables
    Appendix IV Equipment Pricing Data
    Appendix V Design Phases: Inputs and Outputs Index

    Biography

    Thane Brown