Version: 2024.01
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||
| F24S | SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS (for producing mechanical power from solar energy F03G 6/00) [2018-05] NOTE
|
F24S 10/00 | Solar heat collectors using working fluids [2018-05] |
F24S 10/10 | . | the working fluids forming pools or ponds [2018-05] |
F24S 10/13 | . . | Salt-gradient ponds [2018-05] |
F24S 10/17 | . . | using covers or floating solar absorbing elements [2018-05] |
F24S 10/20 | . | having circuits for two or more working fluids (with means for exchanging heat between two or more fluids F24S 10/30) [2018-05] |
F24S 10/25 | . | having two or more passages for the same working fluid layered in direction of solar-rays, e.g. having upper circulation channels connected with lower circulation channels [2018-05] |
F24S 10/30 | . | with means for exchanging heat between two or more working fluids [2018-05] |
F24S 10/40 | . | in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors [2018-05] |
F24S 10/45 | . . | {the enclosure being cylindrical} [2018-05] |
F24S 10/50 | . | the working fluids being conveyed between plates [2018-05] |
F24S 10/501 | . . | {having conduits of plastic material} [2018-05] |
F24S 10/502 | . . | {having conduits formed by paired plates and internal partition means} [2018-05] |
F24S 10/503 | . . | {having conduits formed by paired plates, only one of which is plane} [2018-05] |
F24S 10/504 | . . | {having conduits formed by paired non-plane plates} [2018-05] |
F24S 10/505 | . . | {having curved plate-like conduits, e.g. semi-spherical} [2018-05] |
F24S 10/506 | . . | {having conduits formed by inflation of portions of a pair of joined sheets} [2018-05] |
F24S 10/55 | . . | with enlarged surfaces, e.g. with protrusions or corrugations (collectors comprising porous materials or permeable masses directly contacting the working fluids F24S 10/80) [2018-05] |
F24S 10/60 | . | the working fluids trickling freely over absorbing elements [2018-05] |
F24S 10/70 | . | the working fluids being conveyed through tubular absorbing conduits [2018-05] |
F24S 2010/71 | . . | {the conduits having a non-circular cross-section} [2018-05] |
F24S 10/72 | . . | {the tubular conduits being integrated in a block; the tubular conduits touching each other} [2018-05] |
F24S 10/73 | . . | {the tubular conduits being of plastic material} [2018-05] |
F24S 10/74 | . . | {the tubular conduits are not fixed to heat absorbing plates and are not touching each other} [2018-05] |
F24S 10/742 | . . . | {the conduits being parallel to each other} [2018-05] |
F24S 10/744 | . . . | {the conduits being helically coiled} [2018-05] |
F24S 10/746 | . . . | {the conduits being spirally coiled} [2018-05] |
F24S 10/748 | . . . | {the conduits being otherwise bent, e.g. zig-zag} [2018-05] |
F24S 10/75 | . . | with enlarged surfaces, e.g. with protrusions or corrugations (collectors comprising porous material or permeable masses directly contacting the working fluids F24S 10/80) [2018-05] |
F24S 2010/751 | . . . | {Special fins} [2018-05] |
F24S 2010/752 | . . . . | {extending obliquely} [2018-05] |
F24S 10/753 | . . . | {the conduits being parallel to each other} [2018-05] |
F24S 10/754 | . . . | {the conduits being spirally coiled} [2018-05] |
F24S 10/755 | . . . | {the conduits being otherwise bent, e.g. zig-zag} [2018-05] |
F24S 10/80 | . | comprising porous material or permeable masses directly contacting the working fluids (for conveying liquefied working fluid from evaporator sections to condenser sections with capillary force F24S 10/95) [2021-08] |
F24S 10/90 | . | using internal thermosiphonic circulation [2021-08] |
F24S 20/00 | Solar heat collectors specially adapted for particular uses or environments [2021-08] |
F24S 20/02 | . | {for swimming pools} [2018-05] |
F24S 20/04 | . | {for showers} [2018-05] |
F24S 2020/10 | . | {Solar modules layout; Modular arrangements} [2018-05] |
F24S 2020/11 | . . | {in the form of multiple rows and multiple columns, all solar modules being coplanar} [2018-05] |
F24S 2020/12 | . . | {Coplanar arrangements with frame overlapping portions} [2018-05] |
F24S 2020/13 | . . | {Overlaying arrangements similar to roof tiles} [2018-05] |
F24S 2020/14 | . . | {Stepped arrangements, e.g. in parallel planes, without module overlapping} [2018-05] |
F24S 2020/15 | . . | {Non-parallel arrangements} [2018-05] |
F24S 2020/16 | . . | {Preventing shading effects} [2018-05] |
F24S 2020/17 | . . | {Arrangements of solar thermal modules combined with solar PV modules} [2018-05] |
F24S 2020/18 | . . | {having a particular shape, e.g. prismatic, pyramidal} [2018-05] |
F24S 2020/183 | . . . | {in the form of louvers} [2018-05] |
F24S 2020/186 | . . . | {allowing change of position for optimization of heat collection} [2018-05] |
F24S 20/20 | . | Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants [2018-05] |
F24S 2020/23 | . . | {movable or adjustable} [2018-05] |
F24S 20/25 | . . | using direct solar radiation in combination with concentrated radiation [2018-05] |
F24S 20/30 | . | Solar heat collectors for heating objects, e.g. solar cookers or solar furnaces [2021-08] |
F24S 20/40 | . | Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air [2018-05] |
F24S 20/50 | . | Rollable or foldable solar heat collector modules [2021-08] |
F24S 20/55 | . . | made of flexible materials [2021-08] |
F24S 20/60 | . | Solar heat collectors integrated in fixed constructions, e.g. in buildings [2018-05] |
F24S 20/61 | . . | Passive solar heat collectors, e.g. operated without external energy source [2018-05] |
F24S 20/62 | . . | in the form of fences, balustrades or handrails [2018-05] |
F24S 20/63 | . . | in the form of windows [2018-05] |
F24S 20/64 | . . | in the form of floor constructions, grounds or roads [2018-05] |
F24S 20/66 | . . | in the form of facade constructions, e.g. wall constructions (in the form of shingles or tiles F24S 20/69) [2021-08] |
F24S 20/67 | . . |
F24S 20/69 | . . | in the form of shingles or tiles [2021-08] |
F24S 20/70 | . | Waterborne solar heat collector modules (for working fluids forming pools or ponds F24S 10/10) [2021-08] |
F24S 20/80 | . | Airborne solar heat collector modules, e.g. inflatable structures [2018-05] |
F24S 21/00 | Solar heat collectors not provided for in groups F24S 10/00-F24S 20/00 [2021-08] |
F24S 23/00 | Arrangements for concentrating solar-rays for solar heat collectors [2021-08] |
F24S 23/10 | . | {Prisms} [2018-05] |
F24S 23/11 | . | {Fluorescent material} [2018-05] |
F24S 23/12 | . | {Light guides} [2018-05] |
F24S 23/30 | . | with lenses [2018-05] |
F24S 23/31 | . . | {having discontinuous faces, e.g. Fresnel lenses} [2018-05] |
F24S 23/70 | . | with reflectors [2018-05] |
F24S 23/71 | . . | with parabolic reflective surfaces (with cylindro-parabolic reflective surfaces F24S 23/74) [2021-08] |
F24S 23/715 | . . . | {flexible} [2018-05] |
F24S 23/72 | . . | with hemispherical reflective surfaces [2018-05] |
F24S 23/74 | . . | with trough-shaped or cylindro-parabolic reflective surfaces [2021-08] |
F24S 23/745 | . . . | {flexible} [2018-05] |
F24S 23/75 | . . | with conical reflective surfaces [2018-05] |
F24S 23/77 | . . | with flat reflective plates [2018-05] |
F24S 23/79 | . . | with spaced and opposed interacting reflective surfaces [2018-05] |
F24S 23/80 | . . | {having discontinuous faces} [2018-05] |
F24S 23/81 | . . | {flexible (F24S 23/715, F24S 23/745 take precedence)} [2018-05] |
F24S 23/82 | . . | {characterised by the material or the construction of the reflector} [2018-05] |
F24S 2023/83 | . . | {Other shapes} [2018-05] |
F24S 2023/831 | . . . | {corrugated} [2018-05] |
F24S 2023/832 | . . . | {curved} [2018-05] |
F24S 2023/833 | . . . | {dish-shaped} [2018-05] |
F24S 2023/834 | . . . | {trough-shaped} [2018-05] |
F24S 2023/835 | . . . . | {asymmetric} [2018-05] |
F24S 2023/836 | . . . | {spiral} [2018-05] |
F24S 2023/837 | . . . | {hyperbolic} [2018-05] |
F24S 2023/838 | . . . | {involutes} [2018-05] |
F24S 2023/84 | . . | {Reflective elements inside solar collector casings} [2018-05] |
F24S 2023/85 | . . | {Micro-reflectors} [2018-05] |
F24S 2023/86 | . . | {in the form of reflective coatings} [2018-05] |
F24S 2023/87 | . . | {Reflectors layout} [2018-05] |
F24S 2023/872 | . . . | {Assemblies of spaced reflective elements on common support, e.g. Fresnel reflectors} [2018-05] |
F24S 2023/874 | . . . | {Reflectors formed by assemblies of adjacent similar reflective facets} [2018-05] |
F24S 2023/876 | . . . | {Reflectors formed by assemblies of adjacent reflective elements having different orientation or different features} [2018-05] |
F24S 2023/878 | . . . | {Assemblies of spaced reflective elements in the form of grids, e.g. vertical or inclined reflective elements extending over heat absorbing elements} [2018-05] |
F24S 2023/88 | . . | {Multi reflective traps} [2021-08] |
| F24S 25/00 | Arrangement of stationary mountings or supports for solar heat collector modules [2018-05] NOTE
|
F24S 2025/01 | . | {Special support components; Methods of use} [2018-05] |
F24S 2025/011 | . . | {Arrangements for mounting elements inside solar collectors; Spacers inside solar collectors} [2018-05] |
F24S 2025/012 | . . | {Foldable support elements} [2018-05] |
F24S 2025/013 | . . | {Stackable support elements} [2018-05] |
F24S 2025/014 | . . | {Methods for installing support elements} [2018-05] |
F24S 2025/015 | . . | {Supports with play between elements} [2018-05] |
F24S 2025/016 | . . | {Filling or spacing means; Elastic means} [2018-05] |
F24S 2025/017 | . . | {Tensioning means} [2018-05] |
F24S 2025/018 | . . | {Means for preventing movements, e.g. stops} [2018-05] |
F24S 2025/019 | . . | {Means for accommodating irregularities on mounting surface; Tolerance compensation means} [2018-05] |
F24S 2025/02 | . . | {Ballasting means} [2018-05] |
F24S 2025/021 | . . | {Sealing means between support elements and mounting surface} [2018-05] |
F24S 2025/022 | . . | {Sealing means between support elements, e.g. overlapping arrangements; Gap closing arrangements} [2018-05] |
F24S 2025/023 | . . | {Means for preventing theft; Locking means} [2018-05] |
F24S 25/10 | . | extending in directions away from a supporting surface [2018-05] |
F24S 25/11 | . . | using shaped bodies, e.g. concrete elements, foamed elements or moulded box-like elements [2018-05] |
F24S 25/12 | . . | using posts in combination with upper profiles [2018-05] |
F24S 25/13 | . . |
F24S 25/15 | . . | using bent plates; using assemblies of plates [2018-05] |
F24S 25/16 | . . | Arrangement of interconnected standing structures; Standing structures having separate supporting portions for adjacent modules [2018-05] |
F24S 25/20 | . | Peripheral frames for modules [2018-05] |
F24S 25/30 | . | using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors (extending in directions away from the supporting surface F24S 25/10; peripheral frames for modules F24S 25/20) [2018-05] |
F24S 25/33 | . . | forming substantially planar assemblies, e.g. of coplanar or stacked profiles [2018-05] |
F24S 25/35 | . . . | by means of profiles with a cross-section defining separate supporting portions for adjacent modules [2018-05] |
F24S 25/37 | . . . | forming coplanar grids comprising longitudinal and transversal profiles [2018-05] |
F24S 25/40 | . | using plate-like mounting elements, e.g. profiled or corrugated plates; Plate-like module frames (extending in directions away from a supporting surface F24S 25/10) [2018-05] |
F24S 25/50 | . | comprising elongate non-rigid elements, e.g. straps, wires or ropes [2018-05] |
F24S 25/60 | . | Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules [2018-05] |
F24S 2025/6001 | . . | {by using hook and loop-type fasteners} [2018-05] |
F24S 2025/6002 | . . | {by using hooks} [2018-05] |
F24S 2025/6003 | . . | {by clamping} [2018-05] |
F24S 2025/6004 | . . | {by clipping, e.g. by using snap connectors} [2018-05] |
F24S 2025/6005 | . . | {by screwed connection} [2018-05] |
F24S 2025/6006 | . . | {by using threaded elements, e.g. stud bolts} [2018-05] |
F24S 2025/6007 | . . | {by using form-fitting connection means, e.g. tongue and groove} [2018-05] |
F24S 2025/6008 | . . | {by using toothed elements} [2018-05] |
F24S 2025/6009 | . . | {by deforming the material, e.g. by crimping or clinching} [2018-05] |
F24S 2025/601 | . . | {by bonding, e.g. by using adhesives} [2018-05] |
F24S 2025/6011 | . . | {by welding or brazing} [2018-05] |
F24S 2025/6012 | . . | {Joining different materials} [2018-05] |
F24S 2025/6013 | . . . | {Joining glass with non-glass elements} [2018-05] |
F24S 25/61 | . . | for fixing to the ground or to building structures [2018-05] |
F24S 25/613 | . . . | in the form of bent strips or assemblies of strips; Hook-like connectors; Connectors to be mounted between building-covering elements [2018-05] |
F24S 25/615 | . . . | for fixing to protruding parts of buildings, e.g. to corrugations or to standing seams [2018-05] |
F24S 25/617 | . . . | Elements driven into the ground, e.g. anchor-piles; Foundations for supporting elements; Connectors for connecting supporting structures to the ground or to flat horizontal surfaces [2018-05] |
F24S 25/63 | . . | for fixing modules or their peripheral frames to supporting elements [2018-05] |
F24S 25/632 | . . . | Side connectors; Base connectors [2018-05] |
F24S 25/634 | . . . | Clamps; Clips [2018-05] |
F24S 25/636 | . . . . | clamping by screw-threaded elements [2018-05] |
F24S 25/65 | . . | for coupling adjacent supporting elements, e.g. for connecting profiles together [2018-05] |
F24S 25/67 | . . | for coupling adjacent modules or their peripheral frames (for fixing modules or their peripheral frames to supporting elements F24S 25/63) [2018-05] |
F24S 25/70 | . | with means for adjusting the final position or orientation of supporting elements in relation to each other or to a mounting surface; with means for compensating mounting tolerances [2018-05] |
F24S 2025/80 | . | {Special profiles} [2018-05] |
F24S 2025/801 | . . | {having hollow parts with closed cross-section} [2018-05] |
F24S 2025/802 | . . | {having circular or oval cross-section} [2018-05] |
F24S 2025/803 | . . | {having a central web, e.g. I-shaped, inverted T- shaped} [2018-05] |
F24S 2025/804 | . . | {U-, C- or O-shaped; Hat profiles} [2018-05] |
F24S 2025/805 | . . | {in the form of corrugated profiles} [2018-05] |
F24S 2025/806 | . . | {having curved portions} [2018-05] |
F24S 2025/807 | . . | {having undercut grooves} [2018-05] |
| F24S 30/00 | Arrangements for moving or orienting solar heat collector modules [2021-08] NOTE
|
F24S 2030/10 | . | {Special components} [2018-05] |
F24S 2030/11 | . . | {Driving means} [2018-05] |
F24S 2030/115 | . . . | {Linear actuators, e.g. pneumatic cylinders} [2018-05] |
F24S 2030/12 | . . | {Coupling means} [2018-05] |
F24S 2030/13 | . . | {Transmissions} [2018-05] |
F24S 2030/131 | . . . | {in the form of articulated bars} [2018-05] |
F24S 2030/132 | . . . . | {in the form of compasses, scissors or parallelograms} [2018-05] |
F24S 2030/133 | . . . | {in the form of flexible elements, e.g. belts, chains, ropes} [2018-05] |
F24S 2030/134 | . . . | {in the form of gearings or rack-and-pinion transmissions} [2018-05] |
F24S 2030/135 | . . . | {in the form of threaded elements} [2018-05] |
F24S 2030/136 | . . . | {for moving several solar collectors by common transmission elements} [2018-05] |
F24S 2030/137 | . . . | {for deriving one movement from another one, e.g. for deriving elevation movement from azimuth movement} [2018-05] |
F24S 2030/14 | . . | {Movement guiding means} [2018-05] |
F24S 2030/145 | . . . | {Tracks} [2018-05] |
F24S 2030/15 | . . | {Bearings} [2018-05] |
F24S 2030/16 | . . | {Hinged elements; Pin connections} [2018-05] |
F24S 2030/17 | . . | {Spherical joints} [2018-05] |
F24S 2030/18 | . . | {Load balancing means, e.g. use of counter-weights} [2018-05] |
F24S 2030/19 | . . | {Movement dampening means; Braking means} [2018-05] |
F24S 30/20 | . | for linear movement [2021-08] |
F24S 30/40 | . | for rotary movement [2021-08] |
F24S 30/42 | . . | with only one rotation axis [2021-08] |
F24S 30/422 | . . . | Vertical axis [2021-08] |
F24S 30/425 | . . . | Horizontal axis [2021-08] |
F24S 30/428 | . . . | with inclined axis [2021-08] |
F24S 30/45 | . . | with two rotation axes [2021-08] |
F24S 30/452 | . . . | Vertical primary axis [2021-08] |
F24S 30/455 | . . . | Horizontal primary axis [2021-08] |
F24S 30/458 | . . . | with inclined primary axis [2021-08] |
F24S 30/48 | . . | with three or more rotation axes or with multiple degrees of freedom [2021-08] |
F24S 40/00 | Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors (control arrangements F24S 50/00) [2021-08] |
F24S 40/10 | . | Protective covers or shrouds; Closure members, e.g. lids (transparent coverings F24S 80/50) [2018-05] |
F24S 40/20 | . | Cleaning; Removing snow [2018-05] |
F24S 40/40 | . | Preventing corrosion; Protecting against dirt or contamination [2018-05] |
F24S 40/42 | . . |
F24S 40/44 | . . | Draining rainwater or condensation [2018-05] |
F24S 40/46 | . . | Maintaining vacuum, e.g. by using getters [2018-05] |
F24S 40/48 | . . | Deaerating or degassing the working fluid [2018-05] |
F24S 40/50 | . |
F24S 40/52 | . . | by modifying the heat collection, e.g. by defocusing or by changing the position of heat-receiving elements [2018-05] |
F24S 40/53 | . . | by venting solar heat collector enclosures [2021-08] |
F24S 40/55 | . . | Arrangements for cooling, e.g. by using external heat dissipating means or internal cooling circuits (by venting F24S 40/53) [2018-05] |
F24S 40/57 | . . |
F24S 40/58 | . . | Preventing overpressure in working fluid circuits [2018-05] |
F24S 40/60 | . | Arrangements for draining the working fluid [2018-05] |
F24S 40/70 | . |
F24S 40/80 | . | Accommodating differential expansion of solar collector elements [2018-05] |
F24S 40/85 | . . | {Arrangements for protecting solar collectors against adverse weather conditions (F24S 40/10 takes precedence)} [2018-05] |
F24S 40/90 | . | Arrangements for testing solar heat collectors [2021-08] |
F24S 50/00 | Arrangements for controlling solar heat collectors [2018-05] |
F24S 50/20 | . | for tracking [2021-08] |
F24S 2050/25 | . . | {Calibration means; Methods for initial positioning of solar concentrators or solar receivers} [2018-05] |
F24S 50/40 | . | responsive to temperature [2018-05] |
F24S 50/60 | . | responsive to wind [2018-05] |
F24S 50/80 | . | for controlling collection or absorption of solar radiation [2018-05] |
F24S 60/00 | Arrangements for storing heat collected by solar heat collectors (working fluids forming pools or ponds F24S 10/10) [2021-08] |
F24S 60/10 | . | using latent heat [2021-08] |
F24S 60/20 | . | using chemical reactions, e.g. thermochemical reactions or isomerisation reactions [2021-08] |
F24S 60/30 | . | storing heat in liquids [2021-08] |
F24S 70/00 | Details of absorbing elements [2021-08] |
F24S 70/10 | . | characterised by the absorbing material (absorbing coatings or surface treatment for increasing absorption F24S 70/20) [2018-05] |
F24S 70/12 | . . | made of metallic material [2018-05] |
F24S 70/14 | . . | made of plastics [2018-05] |
F24S 70/16 | . . | made of ceramic; made of concrete; made of natural stone [2018-05] |
F24S 70/20 | . | characterised by absorbing coatings; characterised by surface treatment for increasing absorption [2021-08] |
F24S 70/225 | . . | for spectrally selective absorption [2021-08] |
F24S 70/25 | . . | Coatings made of metallic material [2021-08] |
F24S 70/275 | . . | Coatings made of plastics [2021-08] |
F24S 70/30 | . | Auxiliary coatings, e.g. anti-reflective coatings [2018-05] |
F24S 70/60 | . | characterised by the structure or construction (absorbing coatings or surface treatment for increasing absorption F24S 70/20; auxiliary coatings F24S 70/30) [2018-05] |
F24S 2070/62 | . . | {Heat traps} [2021-08] |
F24S 70/65 | . . | Combinations of two or more absorbing elements [2018-05] |
F24S 80/00 | Details, accessories or component parts of solar heat collectors not provided for in groups F24S 10/00-F24S 70/00 [2021-08] |
F24S 2080/01 | . | {Selection of particular materials} [2018-05] |
F24S 2080/011 | . . | {Ceramics} [2018-05] |
F24S 2080/012 | . . | {Concrete} [2018-05] |
F24S 2080/013 | . . | {Foams} [2018-05] |
F24S 2080/014 | . . | {Carbone, e.g. graphite} [2018-05] |
F24S 2080/015 | . . | {Plastics} [2018-05] |
F24S 2080/016 | . . | {Textiles; Fabrics} [2018-05] |
F24S 2080/017 | . . | {Natural materials, e.g. wood} [2018-05] |
F24S 2080/018 | . . | {Recycled materials} [2018-05] |
F24S 2080/03 | . | {Arrangements for heat transfer optimization} [2018-05] |
F24S 2080/05 | . . | {Flow guiding means; Inserts inside conduits} [2018-05] |
F24S 2080/07 | . . | {Arrangements for one-way heat transfer, e.g. thermal diodes} [2018-05] |
F24S 2080/09 | . | {Arrangements for reinforcement of solar collector elements} [2018-05] |
F24S 80/10 | . | Materials for heat-exchange conduits [2018-05] |
F24S 80/20 | . | Working fluids specially adapted for solar heat collectors [2018-05] |
F24S 80/30 | . | Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers [2018-05] |
F24S 80/40 | . | Casings [2018-05] |
F24S 80/45 | . . | characterised by the material [2018-05] |
F24S 80/453 | . . . | made of metallic material [2018-05] |
F24S 80/457 | . . . | made of plastics [2018-05] |
F24S 80/50 | . | Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings [2021-08] |
F24S 2080/501 | . . | {Special shape} [2018-05] |
F24S 2080/502 | . . . | {in the form of multiple covering elements} [2018-05] |
F24S 2080/503 | . . . | {in the form of curved covering elements} [2018-05] |
F24S 80/52 | . . |
F24S 80/525 | . . . | made of plastics [2021-08] |
F24S 80/54 | . . | using evacuated elements [2021-08] |
F24S 80/56 | . . | characterised by means for preventing heat loss [2021-08] |
F24S 80/58 | . . | characterised by their mountings or fixing means [2021-08] |
F24S 80/60 | . |
F24S 80/65 | . . | characterised by the material [2018-05] |
F24S 80/70 | . | Sealing means [2018-05] |
F24S 90/00 | Solar heat systems not otherwise provided for [2018-05] |
F24S 2201/00 | Prediction; Simulation [2018-05] |