HVAC - Commercial Refrigeration

  • Wednesday, September 18, 2019
  • 8:30 AM - 3:00 PM
  • SDGE Energy Innovation Center, 4760 Clairemont Mesa Blvd, San Diego, CA 92117

Overview

There is a wide variety of commercial refrigeration equipment, from ice machines to supermarket food displays. Many refrigeration systems are old, operate inefficiently, and have few if any equipment improvements. With today’s new refrigerants and technologies (such as floating head pressure, liquid sub-cooling and multiplexed compressors), there are many opportunities for improving the efficiency of existing equipment or for implementing new equipment.

This full-day course reviews elementary refrigeration concepts and introduces various energy-efficiency techniques that, when properly applied, can save on energy costs. It addresses the latest refrigerant issues, efficiency measures, equipment options, Title 24 compliance, integrated demand side management, and the benefits presented by these topics. This course is designed for owners and managers of refrigeration systems as well as service professionals.

Objectives

  • Identify the components of a commercial refrigeration system
  • Describe the differences between conventional and parallel/multiplex refrigeration systems
  • List the factors that affect the heat-transfer efficiency of a condenser
  • Discuss the differences in air-cooled, water-cooled, and evaporative condensers
  • Identify the characteristics that affect the function of the evaporator
  • Discuss the variables to consider when evaluating and selecting a replacement refrigerant.
  • Assess ways to improve the energy efficiency of refrigeration systems.
  • Explain the benefits of subcooling.
  • Describe how floating head pressure and variable speed drives result in energy savings
  • Define the concept of IDSM and describe demand-side management strategies that can be used for commercial refrigeration
  • Identify relevant Title 24 Part 6 code triggers and mandatory measures
  • Identify relevant SDG&E programs that can help save energy and reduce costs

Speaker

David Wylie is a founding member of ASWB Engineering with 40 years of experience in commercial and industrial building optimization and energy engineering and over 100,000 hours of classroom instruction time. He has developed and managed energy efficiency and technology demonstration projects for utilities, municipalities, commercial clients, and the U.S. Department of Energy. He is best known for his role as a workforce development instructor delivering trainings for PG&E’s Industrial Strength Energy Efficiency Seminar Series, SCE’s Energy Education Centers, and SCE’s Customer Energy Services Department. He is a published author of books and articles on energy efficient technologies and former president of the local chapter of the Southern California Board of Association of Professional Energy Managers (APEM).

Additional Details

Check-in time: 8:30am with breakfast & lunch provided

Learning Level: Intermediate


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This is a project of the San Diego Regional Climate Collaborative, which is partially funded by California utility customers and administered by San Diego Gas & Electric® (SDG&E) under the auspices of the California Public Utilities Commission. The Center for Sustainable Energy® is a member of the collaborative. Trademarks are property of their respective owners.