Overview
In the HVAC industry, the refrigeration machine that produces chilled water is referred to as a “chiller”. The majority of installations operating worldwide are based on vapor compression chillers that use mechanical energy in the form of an electric motor to drive the cooling cycle. Vapor compression chiller packages are generally classified by the four (4) types of compressors: centrifugal, reciprocating, screw and scroll.
This 4 hour online course provides comprehensive information on chiller compressors. The course addresses the key issues pertaining to chiller compressor selection and their applications. The practical considerations and assessment criterion are also discussed in brief.
The course is divided into 3 sections:
- Part - I: Types of Chiller Compressors
- Part – II: Comparison of Chiller Compressors
- Part –III: Economic Evaluation of Chiller Systems
This course is applicable to HVAC engineers, facility engineers, architects, environmentalists, operations and maintenance personnel, as well as consultants and contractors who construct, build and manage facilities.
The student must take a multiple-choice quiz consisting of twenty-five (25) questions at the end of this course to obtain PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Operating principle of reciprocating, screw, centrifugal and scroll compressors
- Key advantages, disadvantages, limitations and drawbacks of various refrigeration compressors
- Efficiency ratings of various chiller options on peak load and part load
- Factors affecting the efficiency of chiller compressors
- Types of refrigerants used/recommended
- Heat rejection options – air cooled vs. water cooled chillers
- Reliability, maintenance, field serviceability of various chiller options
- ARI standard 550/590 performance standard for defining part load performance ratings – IPLV vs. NPLV
- Importance of peak load and part load analysis in determining the overall capacity and number of chillers
- Series and parallel arrangement of chillers
- Operational regimes, infrastructural availability and physical attributes affecting the selection of chillers
- Procurement strategies, performance specifications, life cycle cost considerations
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
Overview of Chiller Compressors
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