This invention provides a primary uniform heater in the natural temperature preserving main body and it is conducted to a room needed to be heated, where the temperature can disperse openly; the temperature is transferred by the heat-conductive fluid by a main pump, or further by a shunt pump; that is, fresh air enters into the primary uniform air-heater through an open filtered inlet, and enter the primay uniform heater of the natural temperature preserving main body and then it is pumped throu...

Structural support assembly for use in arctic and subarctic (permafrost) areas or in any areas where the upper ground layer is subject to a severe annual freeze-thaw cycle, including the cooperative combination of a support structure and a heat pipe element installed in generally frozen soil. The heat pipe is of a suitably complementary configuration and/or disposition with respect to the support structure to provide appropriate stabilization of the surrounding frozen soil. In one embodiment, th...

An air temperature control system which is highly energy efficient and virtually maintenance free. The system includes an intake conduit for receiving air at a non-selected temperature, an exit conduit for delivering the air at a controlled temperature to a preselected location, a heat exchanger located below the surface of the ground, and a heat sink preferably of limestone which surrounds the heat exchanger and which adjusts the temperature of the air flowing through the heat exchanger to a co...

A method and apparatus are provided for heating and cooling buildings, particularly chickenhouses, wherein low grade heat is obtained from below the frost line and, by heat exchange means, the low grade heat is used to heat or cool air which is then ducted into the building. This conditioned air circulates within the building and exits through horizontal vents extending substantially continuously around the periphery of the building near the floor thereof, which vents connect the inside of the b...

A switchgear cabinet with an air-conditioning device having a heat exchanger, wherein the air in the interior of the switchgear cabinet can be or is conducted to the heat exchanger and can be conditioned by the heat exchanger. Effective air-conditioning of the interior of the switchgear cabinet, along with simultaneously reduced energy requirements, is possible if the heat exchanger is embodied as an underground heat exchanger and is placed into the ground.

A Frasch process sulphur mine power plant is coupled to a steam-electric generating plant by a coupling heat exchange means, wherein the heat liberated by condensing steam is substantially used to bring Frasch mine water up to operating temperature.

A plant for tempering a building, including an energy storage unit formed by ground heat exchangers coupled in parallel and each including a heat insulated leg and a non-insulated leg in thermal contact with surrounding soil. The heat exchangers are included in a circulating circuit for a circulation fluid which includes a circulation pump and room temperature keeping devices. The energy storage unit has a continuously varying temperature in a depth direction from a cold end to a warm end. The f...

Two or more reversible wells open respectively into a "hot" zone and a "cold" zone of a reservoir or captive layer. The water of the layer is circulated within a primary circuit in a first direction corresponding to circulation within an external loop from the "cold zone" wells to the "hot zone" wells and in a second direction corresponding to circulation from the "hot zone" wells to the "cold zone" wells. Indirect heat transfer takes place between the primary circuit and a secondary heating cir...

A geothermal apparatus comprising a first pipe for receiving a heat exchange liquid therein and a second pipe for receiving the heat exchange liquid therein and having a web integrally connected to each of the first and second pipes, between such pipes for holding the second pipe at a predetermined distance from the first pipe. This pair of pipes, which are integrally connected, are installed in the ground in a hole or bore and then are connected to a heat exchanger having a fluid inlet connecte...

A cooling system is provided for cooling a canister. A first heat pipe is mounted around the perimeter of the canister. The first heat pipe has a condenser. A second heat pipe has an evaporator conductively coupled to the condenser of the first heat pipe. The second heat pipe has a condenser. A heat sink is conductively coupled to the condenser of the second heat pipe.