A plate-type heat exchanger and methods of construction and use wherein one or more separate, individual heat exchanging plate elements, through which a heat exchange fluid flows, are used which can (a) withstand pressure surge events, (b) allow the exchanger and the plate elements to be easily cleaned and maintained, and (c) allow the plate elements to be individually and separately removed from the exchanger for cleaning or maintenance while the exchanger remains online and while any other plate elements in the heat exchanger continue to operate.
F28F 9/12 - Arrangements for sealing elements into header boxes or end plates by dismountable joints by flange-type connections
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
A subterranean ground heat exchange system, a method of installation, and a grout composition therefor. The grout composition is a pumpable slurry formed of from about 70 to about 85 parts by weight natural flake graphite and from about 30 to about 15 parts by weight bentonite. The solids content of the pumpable grout slurry is preferably at least 35% by weight and is more preferably at least 40% by weight. The ground exchange apparatus preferably utilizes an improved supply and return header comprised of supply and return ports which are provided through the vertically extending outer wall of a header housing. The header also includes an interior supply conduit which extends from the supply port into the interior of the header housing and includes a bend positioned in the interior of the housing for directing the heat transfer fluid downwardly.
F25J 3/08 - Separating gaseous impurities from gases or gaseous mixtures
F28D 7/12 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, i.e. return type
C09K 8/467 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
F28F 1/08 - Tubular elements crimped or corrugated in longitudinal section
F24T 10/17 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
F28F 13/00 - Arrangements for modifying heat transfer, e.g. increasing, decreasing
A method, apparatus, conduit, and composition for low thermal resistance ground heat exchange which preferably comprise, include, and/or use one or more of: a thin-walled, highly conductive filament wound conduit/casing formed using a thermosetting plastic composition containing a thermal conductivity enhancer; a grout backfill preferably including a sufficient amount of graphite, coke, or similar additive to provide a thermal conductivity of 3 Btu/hr-ft-° F. and higher; and a drop tube delivery conduit within the casing, the drop tube having radial exterior ribs which extend into the fluid return annulus formed between the interior wall of the casing and the exterior of the drop tube.
F28D 7/12 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, i.e. return type
F28F 1/42 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F28F 13/00 - Arrangements for modifying heat transfer, e.g. increasing, decreasing
5.
METHOD, APPARATUS, HEADER, AND COMPOSITION FOR GROUND HEAT EXCHANGE
A subterranean ground heat exchange system, a method of installation, and a grout composition therefor. The grout composition is a pumpable slurry formed of from about 70 to about 85 parts by weight natural flake graphite and from about 30 to about 15 parts by weight bentonite. The solids content of the pumpable grout slurry is preferably at least 35% by weight and is more preferably at least 40% by weight. The ground exchange apparatus preferably utilizes an improved supply and return header comprised of supply and return ports which are provided through the vertically extending outer wall of a header housing. The header also includes an interior supply conduit which extends from the supply port into the interior of the header housing and includes a bend positioned in the interior of the housing for directing the heat transfer fluid downwardly.
C04B 14/00 - Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stoneTreatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
6.
Method, apparatus, header, and composition for ground heat exchange
A subterranean ground heat exchange system, a method of installation, and a grout composition therefor. The grout composition is a pumpable slurry formed of from about 70 to about 85 parts by weight natural flake graphite and from about 30 to about 15 parts by weight bentonite. The solids content of the pumpable grout slurry is preferably at least 35% by weight and is more preferably at least 40% by weight. The ground exchange apparatus preferably utilizes an improved supply and return header comprised of supply and return ports which are provided through the vertically extending outer wall of a header housing. The header also includes an interior supply conduit which extends from the supply port into the interior of the header housing and includes a bend positioned in the interior of the housing for directing the heat transfer fluid downwardly.
F28F 1/20 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being attachable to the element
F24J 3/08 - using geothermal heat (devices for producing mechanical power from geothermal energy F03G 4/00)
F28D 7/12 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, i.e. return type
C09K 8/467 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
F28F 1/08 - Tubular elements crimped or corrugated in longitudinal section
F28F 13/00 - Arrangements for modifying heat transfer, e.g. increasing, decreasing
