Method for testing an earth tap heat exchanger and associated ap
Method of recovering thermal energy by heat pump from sea water
Mine cooling
Mini tube and direct expansion heat exchange system
Modular tube bundle heat exchanger and geothermal heat pump syst
Natural ice for cooling energy
Passive-active thermosyphon
Split-air stream air conditioning with desiccant...
Sub-surface and optionally accessible direct expansion...
Sub-surface tubing spacer means for direct expansion...
Subterranean heat exchange units comprising multiple secondary c
Subterranean heat exchanger for refrigeration air conditioning e
Subterranean heating and cooling system
Thermodynamic cycle using hydrostatic head for compression
Underground cooling system and method
Water sump structure
Well-water-type liquid cooling and heating resource system
Wiser cooling system