Design and Rate Air Cooled Heat Exchangers

Course Id:  EHX1021   |   Duration:  1.00 day(s)   |   CEUs Awarded:  0.7   |   Level:  Introductory

Course Objective

  • Learn the general design considerations of Air Cooled Exchangers. 
  • Examine process side, air side, geometry selection and physical properties, and investigate thermal design principles, cross-flow exchangers and extended surfaces. 
  • Explore process-side events and responses, including single and two-phase heat transfer, condensing and fouling.


  • Optimize the investment in Aspen Air Cooled Exchanger software for design and simulation of water coolers and condensers
  • Efficiently use Aspen Air Cooled Exchanger to evaluate:
    • Single-phase exchangers
    • Condensers
    • Air coolers of different configurations


  • Designers and operators of air cooled heat exchangers in process and power industries 
  • Process enginners looking to integrate Aspen Air Cooled Exchanger to Aspen Plus or Aspen HYSYS for rigorous heat exchanger modeling
  • Engineers involved in the specification of air-cooled heat exchangers for the full range of process applications including condensers, gas and liquid coolers 
  • Anyone required to assess technical proposals for air cooled heat exchanger equipment
  • Engineers involved in the design, specification, or operation of process or power heat recovery equipment, including heat recovery steam generators will find the material appropriate.
  • New engineers wishing to gain experience in heat transfer and heat exchanger design


  • Discussion about the general approach and the key elements for successful simulations
  • Use of Aspen Air Cooled Exchanger in design and simulation exercises covering typical examples in condensing
  • Application of Aspen Air Cooled Exchanger exercises for thermal design, rating, and simulation of tubular exchangers
  • Instruction on basic heat transfer and heat exchanger design topics
  • Detailed course notes

Class Schedule

Class Agenda

EHX1021: Design and Rate Air Cooled Heat Exchangers


  • Introductions and course contents
  • Workshop session descriptions
  • Course objectives
Capabilities of Aspen Air-Cooled Exchanger
  • Recognize the features and functional capability of the Aspen Air-Cooled Exchanger application
  • Workshop 1: Design a Water Cooler – Design a single-phase heat exchanger using the Aspen Air-Cooled Exchanger program for a range of outside stream exit temperatures, minimizing the capital operating costs.
  • Workshop 2: Check a Water Cooler – Determine if there is sufficient area available to cool a process fluid to the required temperature for a forced-draught air-cooled heat exchanger.
  • Workshop 3: Simulate a Condenser – Determine the tube side outlet temperature for a forced-draught air-cooled heat exchanger that is operating at a specified altitude.
Applications of Air-Cooled Exchangers
  • Discuss the characteristics and applicability of tubular crossflow exchangers – most notably air-cooled heat exchangers
  • Workshop 4: Simulate an A frame Condenser – Determine the tube side outlet temperature for an A frame condenser given process, geometry and physical properties data
  • Workshop 5: Simulate a Refrigeration Unit – Determine the airside outlet temperature for humid air flowing in a duct.
  • Workshop 6: Water Cooler Using a Fan Curve – Enter a fan curve to determine the operating condition of the exchanger. Vary the fan speed and find the new operating point for the exchanger.
Rigorous Heat Exchanger Modeling using Activated EDR
  • Examine how to implement Aspen EDR software in Aspen HYSYS simulation
  • Demo: Make use of the Activated EDR feature as an improved method for linking Aspen HYSYS and Aspen Shell & Tube Exchanger or Air-Cooled Exchanger
Thermal Design Overview
  • Discuss and review the scope of calculations performed by Aspen Air Cooled Exchanger
  • Recognize the calculation methodology behind Air Cooled Exchanger
  • Multiple Service Analysis using Aspen Air Cooled Exchanger

Aspen Technology, Inc. awards Continuing Education Units (CEUs) for training classes conducted by our organization. One CEU is granted for every 10 hours of class participation.