The archive
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patent · · added 2 months ago
A heat pump for cooling or heating a conditioned space includes an underground heat pipe laid into a hole in the ground back-filled with soil. The heat transfer of the soil is impr...
patent · · added 2 months ago
Containers of radioactive material are placed in a well, so that the subterranean well lining absorbs much of the radiation from the containers. The heat generated by the radioacti...
patent · · added 2 months ago
A method for recovery of heat generated by the combustion of coal in situ within coal seams in the earth. Three embodiments are described: one, in which the coal seam crops out and...
patent · · added 2 months ago
A cold storage tank is mounted in a pit in the ground. An outer plastic sheet barrier lines the pit. A lining of incompressible insulating material lines the interior surface of th...
patent · · added 2 months ago
A method for recovery of heat generated by the combustion of coal in situ within coal seams in the earth. Three embodiments are described: one, in which the coal seam crops out and...
patent · · added 2 months ago
A heat storage tank is mounted in a pit in the ground. The pit preferably has four sides and a bottom. A lining of insulating material mounted against the sides of said pit. A wate...
patent · · added 2 months ago
A thermal storage apparatus comprising two thermal storage vessels, each thermal storage vessel containing a thermal storage medium, one medium being capable of being maintained at...
patent · · added 2 months ago
A heat storage and/or recovery system using multiple heat storage tanks to selectively store heat from a solar collector and recover the stored heat to operate a heat driven system...
patent · · added 2 months ago
A heat or cold storage system utilizing a plurality of channels dug directly into the earth and filled with rocks which are used to absorb heat or cold for storage, a part of such...
patent · · added 2 months ago
Utilization of latent heat stored in a crystalline liquid heat storage medium subject to super-cooling by continuously circulating the storage medium past a heat exchanger position...
patent · · added 2 months ago
A heat or cold storage system utilizing a plurality of channels dug directly into the earth and filled with rocks which are used to absorb heat or cold for storage, a part of such...
patent · · added 2 months ago
Only a limited number of organic or silicone liquid phase thermal exchange fluid types are suitable for operation over a wide range of hot and cold temperatures and these have an u...
patent · · added 2 months ago
A large capacity tank for the seasonal storage of hot water from electrical power-generating thermal and nuclear plants to be used seasonally to heat buildings, consisting of a lar...
patent · · added 2 months ago
This invention relates to a system for generating power utilizing the elevation differences and available temperatures on the earth's surface, such as occurs in a mountainous regio...
patent · · added 2 months ago
A thermal energy storage system including a thermal energy storage tank and a pair of thermal energy exchange tanks disposed in a different horizontal plane than the thermal energy...
patent · · added 2 months ago
A geothermal energy transfer and utilization system makes use of thermal energy stored in hot solute-bearing well water to generate super-heated steam from an injected flow of clea...
patent · · added 2 months ago
A long-period storage accumulator for storing heat water is used as a storing medium. The water is enclosed in large thinwalled containers which are arranged under the ground. The...
patent · · added 2 months ago
Apparatus and method for recovering resources from subterranean rock formations, particularly heat energy, and more particularly geothermal energy. A heat-drill, which has means as...
patent · · added 2 months ago
A solar heating method and apparatus including a system for storing solar heat is provided for heating a house, building or other area. A chamber is filled with calcium oxide which...
patent · · added 2 months ago
In a system for converting heat energy to mechanical energy, a working fluid is vaporized and then permitted to expand in an expander. The vaporized working fluid is introduced to...
patent · · added 2 months ago
A system for the mining of geothermal energy in which a plurality of geothermal wells radiate from a single surface site into a subsurface geothermal reservoir. The wells can be dr...
patent · · added 2 months ago
A freezing-warming apparatus cell which operates on a liquid convection principle in part, as well as by means of a mechanical propeller mounted in the cell. Circulation of the hea...
patent · · added 2 months ago
A cooling water storage system includes two water storage ponds, one pond being located at a higher elevation than the other. The water temperature in the lower pond is reduced by...
patent · · added 2 months ago
Hydraulic fracturing is used to interconnect two or more holes which penetrate a previously dry geothermal reservoir, and to produce within the reservoir a sufficiently large heat-...
patent · · added 2 months ago
Thermal pollution from industrial manufacturing and electric generation plants is avoided by incorporating in the water cooling system of such plants an underground water storage a...
patent · · added 2 months ago
A flight of steps, stairs and the like heated by means of a heating medium passing through a pipe means located within the steps, stairs etc. The pipe means is located totally with...
patent · · added 2 months ago
There is disclosed a method for abstracting geothermal heat from depths below ground that are inaccessible by commercially practicable bore hole drilling techniques. More particula...
patent · · added 2 months ago
Methods and systems for storing large volumes of gas, such as natural gas and the like, as commonly received from pipelines or tankers, in deep underground cavities under near-crit...
patent · · added 2 months ago
A reverse cycle refrigeration system having an indoor heat exchanger, an outdoor heat exchanger, a refrigerant compressor, and reversing valve means for selectively operating the s...
patent · · added 2 months ago
Several heat storage modules may be connected by manifold means to one or more water holding tanks. The heat storage modules may be connected either in parallel or series to water...
