Modern Geothermal HVAC ─ Engineering and Control Applications

Best practices for the design and engineering of geothermal HVAC systems

With a focus on market needs and customer goals, this practical guide explains how to realize the full potential of geothermal HVAC by integrating hydronic systems and controls at maximum capacity. Modern Geothermal HVAC: Engineering and Control Applications explains how to engineer and specify geothermal HVAC for building projects in varying geographic regions. Typical details on control parameters are provided. By using the proven methods in this innovative resource, you will be able to develop highly efficient, long-lasting, and aesthetically pleasing geothermal HVAC systems.

Coverage includes:

• Low-temperature geothermal or earth coupling
• Geothermal heat-pump equipment
• Variations in earth coupling
• Application of earth coupling with regard to site conditions
• Closed-loop earth coupling and fusion
• Intermediate heat exchanger usage in geothermal applications
• Standing column and open geothermal systems
• Fundamentals of comfort, psychrometrics, and thermodynamics
• Hydronic and air HVAC system basics
• Hydronic HVAC system equipment
• Variations and improvements to hydronic systems
• Control systems
• Load sharing and energy recovery
• Calculating system efficiencies, heat gain, and loss
• Geothermal rebates, incentives, and renewables legislation

Jay Egg is a certified geothermal designer and founder of Egg Systems, an HVAC services company focused on geothermal technology. He is a sought-after expert on geothermal HVAC, and his team has written hundreds of web articles on the topic. Jay is the lead author of Geothermal HVAC: Green Heating and Cooling (McGraw-Hill, 2010).

Greg Cunniff is an Application Engineering Manager with Taco Hydronics, a manufacturer and world authority in the field of controls and pumping technologies related to geothermal HVAC. Taco recently broke ground on a $20 million training facility in Cranston, RI, where they will be training up to 200 students at a time, focusing on geothermal technologies.

Carl Orio is a geothermal heat pump systems design engineer, serving as Chairman of Water Energy Distributors, Inc. He is a Certified GeoExchange Designer (Cert#23), and directs and actively participates in training programs for geothermal design engineers and installers. Carl has authored hundreds of transactions, manuals, seminars, and papers on geothermal applications. From the mid 1970s to early 1980 he headed WESCORP Inc, manufacturing approximately 2,200 geothermal heat pumps. During that time to the present, he has developed the Standing Column Well concept, has designed systems and distributed approximately 14,000 geothermal heat pumps.