Heat Recovery Ventilation in HVAC Systems (Ohio Timed & Monitored)

In Heat Recovery Ventilation in HVAC Systems, you'll learn ...

• Fundamental principles of heat and energy recovery systems
• The basic principles of various air-to-air energy recovery devices
• Typical applications, calculations, advantages, and limitations
• Codes and standards pertaining to energy recovery

Overview

To meet the Ohio Board's intent that online courses be "paced" by the provider, a timer will be used to record your study time. You will be unable to access the quiz until the required study time of 250 minutes has been met.

Credit: 5 PDH

Length: 97 pages

Energy recovery ventilation is the process of exchanging the energy contained in a normally exhausted building or space air and using it to treat or "precondition" the incoming outdoor ventilation air in residential and commercial heating, ventilating, and air conditioning (HVAC) systems.

During the warmer seasons, the system pre-cools and dehumidifies, whereas during the cooler seasons, it humidifies and pre-heats.

The benefit of using energy recovery is the ability to meet the ASHRAE ventilation and energy standards while improving indoor air quality and reducing total HVAC equipment capacity.

High-performance Heat Recovery Ventilators (HRV) and Energy Recovery Ventilators (ERV) ensure a continuous ventilation supply and a comfortable and healthy indoor environment.

This technology not only demonstrates an effective means of lowering energy costs and heating and cooling loads, but it has also enabled HVAC equipment to be scaled down.

These energy recovery systems have attracted a lot of interest for industrial, office, and household applications.

Popular methods include air-to-air systems, in which heat recovered from the exhaust air stream is used to preheat incoming fresh air, and heat pumps, in which heat from the exhaust air stream is used to preheat the building's hot water or space heating system.

This course outlines the fundamental principles of heat and energy recovery systems.

This includes understanding the basic principles of various air-to-air energy recovery devices, as well as typical applications, calculations, advantages, and limitations.

Learning Objectives

Upon completion of this course, participants will be able to:

• Explain the basic principles of building-ventilation design.
• Describe the concept of building ventilation and the benefits of air-to-air energy-recovery systems.
• Compare energy-recovery technologies, including plate-type exchangers, enthalpy wheels, heat pipes, and runaround loops.
• Identify alternatives to air-to-air recovery techniques, including economizers, demand-control ventilation, and exhaust-air heat pumps.
• Evaluate the advantages, applications, and limitations of common air-to-air energy-recovery technologies.
• Calculate minimum ventilation rates using ASHRAE Standard 62.1.
• Explain the impact of energy codes, including ASHRAE Standard 90.1, on ERV selection.
• Apply psychrometric analysis to energy-savings calculations for heat- and energy-recovery systems.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 30 questions. PDH credits are not awarded until the course is completed and quiz is passed.