Seminar 83 -- Thermal Energy Storage in Geothermal Systems

This product is a zip file that contains files that consist of PowerPoint slides synchronized with the audio-recording of the speaker, PDF files of the slides, and audio only (mp3 format) as noted.

Geothermal Heat Pump systems are expensive primarily due to cost and installation of ground heat exchangers. This session will explore three ways to introduce thermal energy storage in the system design with the goal to reduce the size of ground heat exchanger. The methods presented also explore ways to use off peak rates for low cost system operation. The presenters willshare modeling aspects of this design and its use in innovative projects across the US.

1. Dual-Purpose Underground Thermal Battery
   Xiaobing Liu, Ph.D., Member, ORNL, Oak Ridge, TN
2. Dual Temperature Borehole Thermal Energy Storage
   Michel Bernier, Ph.D., Fellow ASHRAE, Polytechnique Montréal, Montréal, QC, Canada
3. The Integration of PCM Thermal Energy Storage with Ground-Source Heat Pump Applications
   Stephen Hamstra, P.E., HBDP, Member, Melink Solar and Geo, Milford, OH