Process Engineering White Papers

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  • PACs for industrial control: The future of control

    With a number of vendors producing Programmable Automation Controllers that combine the functionality of a PC and reliability of a PLC, PACs today are increasingly being incorporated into control systems. This white paper explores the origins of the PAC, how PACs differ from PLCs and PCs, and the future direction of industrial control with PACs.

    National Instruments
  • Electro-hydraulic system design: Making the right system choices

    Designers who understand and can take advantage of the differences between fluid power and traditional electromechanical power can build machines that produce higher quality output with lower lifecycle costs. This white paper suggests that care must be taken, however, in selecting and sizing the hydraulic system elements and in tuning the motion controller for optimal performance.

    Delta Computer Systems
  • Level measurement of bulk solids and powders

    This 26-page white paper from Monitor Technologies discusses the difficulties in measuring bulk solids and powders in bins, silos and hoppers.  Download this document to learn which technologies are out there that can make this job easier.

    Monitor Technologies
  • Properly Model and Control Batch Reactors

    This paper covers key aspects for modeling and design of batch reactors, including: heat-up and cool-down performance, sensitivity analysis for reactor parameters, boil-up rate predictions, thermal stability under exothermic conditions, control system design and loop tuning parameters, condenser rating, and process emissions predictions.

  • Properly Model and Design Shell-and-Tube Heat Exchangers

    Shell-and-tube heat exchangers are widely used throughout the chemical industry. This paper provides a review of the key issues involved in their thermal design. It covers both process and mechanical issues, and discusses appropriate methods for determining various parameters.

  • Succeed at Dynamic Modeling of Batch Reactors and Batch Distillation

    This paper reviews the basic techniques for dynamic modeling of these two key operations. It covers considerations related to heat transfer, reaction chemistry, mass balances and the control system. It also discusses equipment configurations, performance characteristics and operational constraints.

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