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Many people are familiar with geothermal heat pump systems, using small, “geothermal” heat pumps, distributed throughout the building, that are coupled with a ground source heat exchanger. These systems operate very efficiently since heat rejected to the ground loop in the summer is stored and extracted in the winter. Today, project teams are also considering central geothermal systems consisting of one or two chillers coupled with a closed, geothermal loop which exchanges heat with the earth. Such systems offer high energy efficiency, with the additional benefit of centralized maintenance, acoustic advantages, and flexibility. This Engineers Newsletter Live! discusses benefits, challenges, design, and control of central geothermal systems.
What you will learn: