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HEI Shell and Tube Heat Exchangers, 5th Edition

Current Revision
Standards for Shell and Tube Heat Exchangers, 5th Edition
Best Price Guarantee Jan 1, 2013 English 98 Pages
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HEI Shell and Tube Heat Exchangers, 5th Edition

The HEI Standards for Shell and Tube Heat Exchangers (5th Edition) is the primary technical guide for the design and manufacture of shell and tube exchangers used in power generation and heavy industrial applications.

While the TEMA (Tubular Exchanger Manufacturers Association) standards are often used for general refinery and chemical processes, the HEI Shell and Tube Standards are more specialized. They focus on the high-reliability needs of power plant auxiliary systems, such as lube oil coolers, hydrogen coolers, and pump-seal water coolers.

Technical Scope & Content

The 5th Edition provides a rigorous engineering framework for "non-condenser" heat exchangers, covering:

  • Thermal Design & Fouling: Detailed methods for calculating the overall heat transfer coefficient ($U$). It includes standardized fouling factors specifically tailored to power plant cooling water sources (e.g., river water, treated cooling tower water).
  • Fluid Dynamics: Formulas for calculating shell-side and tube-side pressure drops. This is critical for sizing the pumps that move cooling water and process fluids through the plant.
  • Mechanical Configuration: Standards for various exchanger types, including fixed tubesheets, U-tubes, and floating head designs.
  • Vibration Protection: Specific criteria for baffle spacing and tube support to prevent Flow-Induced Vibration (FIV), which can lead to catastrophic tube failure in high-velocity systems.

Key Features of the 5th Edition

This edition reflects modern manufacturing capabilities and updated safety margins:

  • Material Selection: Expanded data for modern corrosion-resistant alloys, including various grades of stainless steel and titanium.
  • Nozzle and Support Design: Standards for the physical attachments to the shell, ensuring they can handle the "piping loads" (the weight and thermal expansion of the connected pipes).
  • Tolerances: Precise manufacturing tolerances for tube holes, baffle clearances, and shell ovality to ensure predictable thermal performance.

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