| 摘要 |
The invention provides a system for adapting an HVAC system in an existing building for utilizing geothermal energy, the system comprising an incoming flux of geothermal energy; a plurality of heat exchange surfaces adapted to receive the incoming flux of geothermal energy; and an interface between the HVAC system and the heat exchange surfaces, said interface adapted to transfer the geothermal energy to the system. Also provided is a method for repairing aberrations in drill borings, the method comprising using a rotary mud drill system to produce a drill hole up to the location of the aberrations; removing the rotary mud drill from the drill hole; inserting an auger into the drill hole to a point directly above the location of the aberrations; actuating the auger; introducing loose substrate into the drill hole; allowing the substrate to contact the auger; and lifting and lowering the auger along longitudinally extending regions of the drill hole defining the aberrations for a time and in substrate amounts sufficient to fill the aberrations. The invention also provides a system which facilitates rotating drill bits at an rpm which are multiples faster than their associated drill strings. |
