Industrial refrigeration systems: strategies to improve energy efficiency

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WPPI Energy

1425 Corporate Center Drive

Sun Prairie, WI 53590

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Industrial refrigeration systems: strategies to improve energy efficiency

About this Event

There are many no cost strategies to improve the energy efficiency of industrial refrigeration systems. Join us to learn how to run your industrial refrigerated systems better with simple changes to reduce energy consumption while meeting refrigeration load. This half-day workshop is geared for customers with custom refrigerated systems including cold storage and refrigerated warehouses.

Attendees will get an in-depth look at refrigeration system settings and new technologies. We will explore condensing pressure reduction, suction pressure increase, compressor sequencing, and evaporator defrost. We will also discuss variable frequency drive advantages and disadvantages, appropriate applications, and control recommendations. You will leave with an understanding of the key elements to develop a successful implementation strategy that will improve your system and save on your operating expenses.


  1. Recognize how operational settings influence industrial refrigeration system efficiency .
  2. Identify strategies for no cost energy reduction while meeting refrigeration load.
  3. Discuss the opportunities for variable frequency drives in industrial refrigeration systems.
  4. Develop plans for implementing changes and projects to reduce energy use.


  • Cold storage and refrigerated warehouses
  • Industrial and large buildings with custom refrigeration systems
  • Industrial food/production manufacturing
  • Dairy/ice cream industry
  • Fruit/vegetable industry
  • Meat, poultry and fish production facilities
  • Breweries and wineries with custom refrigeration
  • Ice rinks
  • Pharmaceutical/chemical industries with custom refrigeration systems


7:30 – 8 a.m. - Registration and light breakfast

8 a.m. – noon – Program


Industrial Refrigeration Systems

  • Refrigeration cycle- single stage and multiple-stage systems
  • Equipment description and performance

Opportunities for improved refrigeration system efficiency through operational changes

  • Condensing pressure reduction
  • Suction pressure increase
  • Compressor sequencing
  • Evaporator defrost
  • Case studies

Variable frequency drives

  • Technology overview including advantages and disadvantages
  • Applications to consider in refrigeration systems
  • Control recommendations

Implementation strategy development and management


Facility operators and maintenance personnel, industrial refrigeration contractors, HVAC system operators, refrigeration design engineers and equipment vendors, production staff, industrial refrigeration technicians, and anyone with basic knowledge and interest in industrial food processing and refrigeration energy efficiency best practices.


Please note that in order to receive continuing education credits, you must be present for the entire training; partial credit cannot be given.

AFE This program supports a topic within the body of knowledge outlined by the Association for Facilities Engineering CPE/CPMM/CPS Certification Programs, and should count as 0.375 CEUs (3.75 hours) toward re-certification.

BOC This course offers up to 3.75 points for BOC certified operators.

BOMI This course is approved for up to 3.5 continuing professional development points toward renewal of the professional designations offered by BOMI International.

RETA This course is approved for 4 PD hours.

This course will not be pre-approved for GBCI credits; however, if you believe the content is applicable to your credential, you can self-report credits.


Todd Jekel, Ph.D., P.E., Assistant Director, Industrial Refrigeration Consortium, University of Wisconsin—Madison

In his current role, Todd conducts applied research, shares knowledge and provides technical assistance in all aspects of industrial refrigeration systems and components. Refrigeration load and energy calculations, refrigeration system and component modeling, accumulator design, two-phase flow, condenser control strategies, and design of safety relief vent systems are some of his special interests in industrial refrigeration.

Throughout his career, Todd’s has been involved in the development and delivery of a variety of educational webinars and courses. He is a member of both ASHRAE and IIAR and is involved in multiple refrigeration related committees within those organizations. Todd received his bachelor’s degree in mechanical engineering from Calvin College and master’s degree in mechanical engineering and doctorate in mechanical engineering from the University of Wisconsin—Madison.

Event Host:

Learn more about WPPI Energy.

Questions? Please see our FAQ page, email registration@slipstreaminc.org or call 608.210.7103.

All cancellations are subject to a $25 administrative fee. We will refund 50 percent of the registration fee for cancellations received within two weeks of the training. Cancellations made within three business days of the training are nonrefundable. If this program is not held for any reason, our liability is limited to the refund of the program fee.

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WPPI Energy

1425 Corporate Center Drive

Sun Prairie, WI 53590

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