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Air-Cooled Lithium Bromide Absorption Chillers

COURSE NO: M04-005
Air-Cooled Lithium Bromide Absorption Chillers
Course Highlights

This online engineering PDH course describes some of the more recent design approaches of LiBr chillers.  The course talks about the basics of single-effect LiBr absorption cycle systems, cascaded systems and other system parameters associated with LiBr chillers and systems.


The objective of this investigation was to summarize the development status of air-cooled lithium bromide water absorption chillers.  The use of LiBr is possible in CHP systems but research is still in progress for commercial applications.


This 4 PDH online course is applicable to engineers who are interested in looking at new technologies for systems involving LiBr water absorption chillers.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Basic single-effect LiBr absorption cycle
  • Performance impacts of high ambient temperatures
  • LiBr chiller/cooler size comparisons
  • Separation of heat and mass transfer in absorbers
  • Cascaded systems
  • Intermittent evaporative cooling
  • Pre-cooling return air in HVAC systems
Course Document

In this professional engineering CEU course, you need to review the material contained in "Guide to Developing Air-Cooled LiBr Absorption for Combined Heat and Power Applications", April 2005, published by the U.S. DOE, Energy Efficiency Renewable Energy.

To view, print and study the course document, please click on the following link(s):
Air-Cooled Lithium Bromide Absorption Chillers (1.4 MB)
Course Quiz
Once you complete your course review, you will need to take a multiple-choice quiz consisting of twenty (20) questions to earn 4 PDH credits.  The quiz will be based on this DOE guide.


The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: