WorldWide Drilling Resource

Storing Heat Belowground for Winter Adapted from a Press Release by the Karlsruhe Institute of Technology Aquifers are water-bearing layers in the subsoil where the water does not flow, or hardly flows. As a result, the heat is not transported away within the aquifer. After drilling boreholes to reach the aquifer, water can be heated by using the waste heat from industrial plants or solar heat, while the surrounding rock acts as an insulator. This stored heat can be recovered by means of a heat exchanger. The GeoSpeicher.bw project, coordinated by the Karlsruhe Institute of Technology (KIT) in Germany, plans to use waste heat as a method to warm water in the soil, which will act as a storage process until the heat can be retrieved at a later date. The practice of storing summer heat or waste heat from industrial plants in subterranean water-bearing layers is a widespread practice in the Netherlands, which has more than 1800 locations where the technology is being used. In Germany, there are currently only three locations with the capability of using groundwater conductors as a means of geothermal energy storage. One example is the Reichstag building in Berlin, which is supplied warmth in winter and cold in the summer via several aquifers. The GeoSpeicher.bw project currently intends to use the waste heat from a swimming pool, and either the heat supply of a hospital or the elephant house in Stuttgart. A system is also planned for the surplus heat of a large swimming pool and adventure pool in Hockenheim where the cellar rooms are heated to temperatures over 86ºF (30ºC) all year round due to the heating system and waste heat from technical installations. This excess heat will be stored in a groundwater conductor during the summer months, to be used again in winter. KIT scientists will develop an innovative monitoring and storage concept for the project. The Ministry of the Environment of Baden-Württemberg provided a grant to scientifically evaluate the potential of geothermal heat storage at eight locations. Over the next three years, under the leadership of KIT, participants will look for innovative moni- toring and storage concepts, produce detailed heat transport models, conduct hydrochemistry studies, and prepare extensive system and optimization analyses for communication strategies. The GeoSpeicher.bw project will help optimize the utilization of heat for this pool, courtesy of Waldsee-Therme. For more information call 877-632-4748 or visit www.nda4u.com Don’t miss the 2017 NDA Convention! September 21-22 Royal Plaza Hotel & Trade Center Marlborough, MA President’s Dinner with Awards • Golf Outing • Presentations Approved for CE Credits Outdoor Static Displays • Entertainment • And More. PRESENTATIONS • SPT Drilling and Sampling: Best Practices - Benjamin Halada, Stantec Consulting Services, Inc. • Core Drilling 101 - Rick Hutchings, CME; Dennis Duty, Baroid IDP; and Eric Hajek, Terra Testing • The History of the National Drilling Association - NDA President, Mike Willey • The Case for Embracing Electronic Logging Devices - Jim Howe, Geotechnology, Inc. • Instrumentation - Michael Eno, Geokon Incorporated • Rig Safety & Maintenance 101 - Rob Caho, Diedrich Drill, Inc. • Safety Round Table Exhibitor & Sponsor opportunities are available! 37 WorldWide Drilling Resource ® AUGUST 2017 Hydraulic-Pneumatic tools in stock. Sizes 1” to 20”. SALE Mention this ad and receive sales discount. Model 113HD All Hydraulic Sizes 1"-13" 2547 W Success Way Emmett, ID 83617 (208) 365-3492 • Fax: (208) 365-3792 rauchmfg.com • rauchmfg@frontiernet.net