EP3500807A1 - Klimamaschine - Google Patents
KlimamaschineInfo
- Publication number
- EP3500807A1 EP3500807A1 EP17748788.1A EP17748788A EP3500807A1 EP 3500807 A1 EP3500807 A1 EP 3500807A1 EP 17748788 A EP17748788 A EP 17748788A EP 3500807 A1 EP3500807 A1 EP 3500807A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- working fluid
- working
- gas bubbles
- bubble generation
- evaporator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/026—Evaporators specially adapted for sorption type systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
- F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
Definitions
- the invention relates to a climate machine with a heat transfer surface forming evaporator structure and a working fluid containing working ⁇ medium reservoir, wherein the evaporator structure a
- the working ⁇ liquid is also referred to as a working medium or refrigerant.
- Such air conditioning machines are designed either as refrigerators or as heat pumps.
- evaporating working fluid is the
- the vaporized working fluid ⁇ ness is first adsorbed onto an adsorbent.
- Evaporator structure used for a technical application whereas in a heat pump, the heating of the condenser and / or the adsorber is used for a technical application.
- the evaporator structure is therefore also called
- Heat exchanger or heat exchanger structure called.
- the Nutz policestrom can be removed by a coolant flow of the evaporator structure from the air conditioning machine.
- Such a closed circuit of the coolant is realized.
- air conditioning machines which may be designed, for example, as adsorption refrigeration machines or heat pumps, that is, the working medium is cyclically vaporized and adsorbed or desorbed and condensed.
- chillers may include a sorber and a component combining the condenser and the evaporator structure, such as in the
- EP 1 278 028 B1 discloses.
- the evaporator structure is then operated in alternating operation as an evaporator and condenser.
- the working fluid is vaporized on the evaporator in a temporally successive manner and, after adsorption and desorption on the sorber, condensed again at the evaporator at the condensation temperature.
- the heat exchanger structure is sprayed or sprayed from above with refrigerant.
- the refrigerant forms a thin film (trickle film) on the surface of which it evaporates.
- very good heat transfer coefficients are achieved by the heat transfer structure to the working fluid with good distribution of refrigerant on the surface due to the thin films and due to adjusting in the trickle film convection.
- a circulating pump for the working fluid is needed because non-evaporated refrigerant in the sump, that is collected in the accumulated in the working fluid reservoir working fluid, and must be reapplied to the heat exchanger structure.
- a widely used approach in adsorption chillers and heat pumps is a partially flooded mode of operation, as disclosed, for example, in DE 1 00 33 972 B4.
- the evaporator structure is partially flooded by the working fluid, ie partially submerged in the sump (structural flooding).
- thin films of the working fluid can be generated on the heat transfer surface, which have a low heat resistance.
- the wetting of the heat transfer surface with working fluid takes place, for example, in DE 10 2008 028 854 A1 by utilizing the capillary effect.
- the heat transfer ⁇ surface is formed by a low-finned tube and thus forms a capillary structure.
- Working fluid a double function: First, it causes an increase in the heat transfer surface; on the other hand, the refrigerant is drawn against the gravitational force on the capillary structure by the capillary effect and evenly distributed there. Out of the sun
- DE 10 2011 015 153 A1 discloses an in situ storage of working fluid during the condensation / desorption phase on horizontal heat transfer surfaces, as e.g. in lamellar heat exchangers
- the evaporation of the working fluid takes place in the described air conditioning machines by boiling, including a boiling without blistering is understood.
- the heat transfer in the evaporation is limited in silent (convective) boiling with refrigerant films greater than 1 mm essentially by the transport of heat through the refrigerant film.
- the thermal resistances are very large because only the surface of the water to evaporation contributes Ver ⁇ . For the best possible heat transfer therefore very low film thicknesses of the working fluid on the heat transfer surface of the evaporator structure are sought.
- Density quotient of about 100000.
- the large density quotient must be taken into account by designs in which is evaporated not in the flow boiling but in a free volume to keep pressure losses low and the blocking of the heat exchanger to avoid with due to the high pressure loss not exiting steam pads.
- the requirements for space design are for water as working fluid in the described pressure and temperature range on smooth surfaces
- the object of the present invention is to provide an air conditioning machine and a method for its use, which have the disadvantages of the prior art
- Temperature differences allows and the use of water as a working fluid to be enabled.
- Air machine of the invention has a, a heat transfer surface forming ⁇ evaporator structure and a working fluid containing low-key work equipment ⁇ reservoir, so a working sump on.
- the evaporator structure has a cooling liquid passage.
- a bubble generation structure According to the invention, a bubble generation structure
- the bubble generation structure at least partially flooded by the working fluid, and / or wettable with working fluid, is arranged in the region of the working ⁇ medium reservoir.
- the evaporator structure is arranged in such a way in a spray area of the working fluid, for example above the working fluid reservoir, that the heat Transfer surface by, from the bubble generation ⁇ structure in the working fluid generated and / or introduced and ascending in the working fluid gas bubbles, entrained working fluid with a
- a spray area is a volume area which is reached by the entrained working fluid ejected from the gas reservoirs by the gas bubbles, i. in which the working fluid is injected
- gas bubble is for the purposes of the present description, one generated by the bubble generation structure in the reservoir of the working fluid and in the working fluid
- a hybrid evaporator is provided especially for low pressure applications.
- the inventively ver ⁇ realized heat exchanger concept serves as an evaporator in ⁇ particular in chillers and heat pumps, so it can be used eg in sorption in low pressure applications, but also for distributing trickle films, for example, in absorption processes.
- On the heat transfer surface of the evaporator structure such a thin liquid film of the working fluid can be formed, which is almost fully ⁇ constantly vaporized and offers low thermal resistance between the heat transfer surface and the adjacent surface of the working fluid.
- heat can be introduced into the working liquid sump, which locally leads to the formation of the gas bubbles. The thus spilled refrigerant, so the
- Working fluid hits the evaporator structure and forms the desired thin liquid film.
- the Heating power can be introduced, for example, by a constant basic heating and control by a second, additional heat source and / or by a point-shaped heating, for example an electrical resistance.
- the evaporator structure thus may be such structurally separated from the bubble generating structure, that the introduced for generating the gas bubbles from the bubble generating structure into the working medium reservoir energy at least in the Wesent ⁇ union is independent of the temperature of the cooling liquid in the cooling liquid passing the evaporator structure and / or can be controlled.
- the evaporator structure of the climate machine according to the invention thus comprises at least two structural areas, wherein the one
- Structured area is flooded as a bubble generation structure or at least partially flooded located in the working fluid reservoir and is designed such that on the outside of the structure bubble nucleate can be initiated.
- the working fluid Due to the nucleate boiling, the working fluid is ejected from the working fluid reservoir and, in the second structural area designed as an evaporator structure, impinges on its heat transfer surface, which is embodied as the outside of a heat exchanger, which passes through it
- geometric texture is designed such that the working fluid is distributed flat and so on
- the evaporator structure to be wetted in this way can be arranged above the bubble generation structure or else laterally therefrom. It can be complete or in the working sump partially submerged. When partially immersed, at least in the presence of capillary active distribution structures on the surface of the evaporator structure, an additional absorption of the working fluid from the
- gas bubbles are generated with a small proportion of the energy required for operation and / or withdrawn from a coolant, the task of which is to distribute the refrigerant, ie working fluid, on the evaporator structure (s).
- the targeted generation of gas bubbles in the working fluid can by Design of structures or even by phased energy supply done.
- the bubble generation structure is one
- a cooling liquid can be guided, which is withdrawn to generate the gas bubbles heat. It can be the same
- Act liquid coolant which is passed through the coolant ⁇ passage of the evaporator structure. Such is performed as for bubble generation and upon evaporation of the working fluid, a heat extraction from the cooling liquid ⁇ ness.
- the hydraulic connection of the two fluid-carrying structures that is, the cooling liquid passage of the evaporator structure and the fluid guide tube of the bubble generation structure, can either in serial or
- Fluid guide tube and the cooling liquid passage in a cooling liquid circuit arranged in series one behind the other In this case, the fluid guide tube is first flowed through by the cooling liquid, so that there is a higher
- Coolant temperature than in the cooling liquid passage prevails.
- the energy for forming the gas bubbles, that is for the formation of bubbles, is thermally so through the flow of the coolant formed by the
- Coolant circuit eg a cold water circuit, the working fluid reservoir supplied.
- the thermal energy for generating the gas bubbles is thus introduced directly via the cooling liquid circuit, by passing it through in series, ie the largest temperature difference between the cooling liquid and the working liquid then lies in the bubble generation structure.
- a heat exchanger configured to be Cold water inlet area allows bubble forming overheating.
- the bubble generation structure may be electrical heating means and / or a heat pipe and / or mechanical means for
- Blistering may then be additionally or alternatively applied to the thermal feed by the forerun of e.g. Cold water circuit or other heat-transporting fluid circuits, by electrical heating elements, such as electrical resistors or introduction of microwaves and / or heat pipes and / or by mechanical methods, such as. Shaking and / or
- the bubble generation structure may advantageously have a tube deflection and / or surface structures for increasing a heat transfer to the working fluid and / or for improving a bubble separation of the gas bubbles.
- Support for gas bubble detachment serving surface structures may form gaps and / or cavities.
- the fluid guide tube may be inhomogeneous
- the bubble generation structure comprises means for introducing a two-phase flow of the working fluid containing the gas bubbles into the working fluid reservoir.
- the gas bubbles required for spraying the working fluid can also by the introduction of a two-phase flow, for example, from the pressure difference in the working fluid between a Condenser and the evaporator structure by means of a
- Throttle organ is generated to be generated. That the
- Two-phase flow forming two-phase mixture is flowed into the refrigerant pool, ie the working fluid reservoir, from below.
- the rising in the working fluid gas bubbles generate the entrainment of the
- liquid refrigerant i. the working fluid
- the evaporator structure on the cooling liquid passage to increase the heat transfer surfaces arranged fins (fins or - fins) and / or the cooling liquid passage is at least partially plate-shaped and / or the cooling liquid passage is at least partially designed as parallel to each other extending tubes.
- the planteschreiber- ie the evaporator structure to which by the resulting gas bubbles refrigerant, ie working fluid, is sprayed, is arranged such that it is easily accessible for the sprayed refrigerant. This can be realized for example in the form of vertically or laterally aligned over the working fluid reservoir fins, flow-through plates or aligned superimposed tubes.
- An offset arrangement of the structure can be formed in the uppermost structure row of structure rows arranged on top of one another. It can also be a terraced arrangement of the rows of structures
- the to be wetted heat transfer surface ⁇ features such by a very good wetting behavior. This can be achieved either by surface structuring formed by mechanical structuring in the form of, for example, grooves, pins, etc., selectively generated roughnesses, porous layers having a structural height of less than 1 mm and / or by a hydrophilic or contact angle-reducing surface coating and / or chemical Pre-treatment of the heat transfer surface happen.
- the heat transfer surface on which the thin film of the working fluid, such as a water film, evaporates may also have properties that contribute to a uniform distribution of the working fluid on the one hand, but also increase the residence time and mixing the
- Working fluid contributes. This can e.g. herringbone wave structures and / or structural specifications that are consistent with the design of embossed
- Grooves or applied porous structures e.g. Fibers, tissues, sponges, can be determined.
- the working fluid may have a density ratio between about 4000 and about 60,000. In other embodiments of the invention, the working fluid may have a density ratio between about 15,000 and about 60,000, or between about 7,000 and about 25,000, or between about 4,000 and about 14,000. In some embodiments of the invention, the working fluid may have a density quotient greater than about 4,000 or greater than about 7,000 or greater than about 12,000. In some embodiments of the invention, the working fluid may have a density quotient of less than about 55,000 or less than about 25,000 or less than about 14,000. In some embodiments of the invention, the working fluid may include or consist of water and / or methanol and / or ethanol. Optionally, for example, an additive for surface tension reduction buried be.
- water as a working fluid is very environmentally friendly, so that can be dispensed with harmful substances such as CFC or ammonia.
- the air conditioning machine according to the invention can be achieved with a wall overheating on the heat transfer surface of the evaporator structure of only 3 to 5 Kelvin good power density.
- porous particles can be introduced. Such embedded in the liquid refrigerant
- Particles are particularly inert, highly porous and good
- the particles mixed with the refrigerant are strongly agitated due to bubble formation. If these particles are inert, highly porous and have good thermal conductivity, they can quickly release the stored refrigerant in the vapor space.
- the heat removed from the particle is returned to the latter as soon as the particle is submerged in the working fluid sump and can thus be returned via the working fluid sump to the circulation of the cooling fluid, e.g. a cold water circuit, be withdrawn.
- the cooling fluid e.g. a cold water circuit
- the evaporator structure may also be integrated into the bottom or sides of the working fluid reservoir.
- a partially introduced bubble generation structure is thermally easy to isolate.
- Fabric structures and / or wire structures can be arranged in the working medium reservoir. With partial immersion of the evaporator structure in the working fluid reservoir, at least in the presence of capillary active distribution structures on the surface of the evaporator structure an additional absorption of the working fluid from the
- Working medium swamp be effected.
- open cell fabric or wire structures can be used to distribute the working fluid.
- the cooling liquid, e.g. Cold water, leading structure can also be incorporated directly into the fabric structure.
- means for expanding and / or diverting the spray area in particular a distributor structure for collecting working fluid entrained by the gas bubbles and for distributing the
- Distributor structure forms part of the evaporator structure.
- a e.g. funnel-shaped working medium conveying tube wherein the working medium conveying tube with an open end, in the case of the funnel shape the wide
- Funnel filling end immersed in the working fluid reservoir, ascending gas bubbles can pump working fluid, ie refrigerant, upwards against the force of gravity through the working fluid delivery tube, so that the spray area can be increased upward, eg beyond the evaporator structure.
- working fluid ie refrigerant
- liquid refrigerant may be distributed from above on the heat transfer surface.
- the liquid refrigerant can be conveyed to a level above the heat exchanger and distributed from there by gravity driven on the evaporator structure.
- Such a pump is realized, which conveys the liquid refrigerant specifically in the higher-lying Ver ⁇ liner structure. The required for this
- the driving force of the rising gas bubbles is used to sprinkle the evaporator structure from above with working fluid.
- a distribution network as a distributor structure, which ends in a targeted manner above the evaporator structure or its parts which form the heat transfer surface and is charged from above.
- the distributor structure should be sufficiently porous in order to allow the vapor of the working fluid present in the gas bubbles to flow through to the adsorber without liquid entrainment .
- the buoyancy of the gas bubbles can also elements, such as valves, flaps,
- the method according to the invention for operating a climate machine according to the invention has the following method steps:
- Ver ⁇ steamer structure of an air machine of the invention is both a pure evaporator as well as a combined
- the latter mode of operation condenses the working fluid at the actively fluid-flow structures, ie the cooling liquid passage, the evaporator structure, wherein excess condensate can drip from the non-flooded Ver ⁇ steamer structure and collects in the working fluid reservoir in which the second structure, ie the bubble generation structure is located ,
- An advantage of this design is that even with increasing refrigerant liquefaction, a constant condensation surface is available and all working fluid, even if it condenses in undesirable places, reactivated,
- the working fluid ⁇ reservoir is preferably located at the bottom of a component that includes the working fluid and its vapor spatially.
- less than 5 percent of the amount of heat energy used in cooling the cooling liquid flowing through the cooling liquid passage can be used to generate the gas bubbles.
- a cold water circuit the cooling liquid is withdrawn.
- Bladder boiling is generated, characterized by the fact that locally very limited high heat flux in the form of wall overheating of more than 10 Kelvin can be applied.
- the thus generated heat and / or energy flow from the bubble generation structure in the working fluid can by thermal or electrical energy or by
- Measures such as shaking, ultrasound, microwaves are generated.
- the energy supply is designed such that the heat input into the liquid refrigerant remains low and is limited to the generation of the bubbles.
- Bubble production is said to be significantly less than 5%, rather less than 1%, of the heat energy associated with e.g.
- Blistering structure can also be a significantly higher temperature level and thus a higher wall overheating be generated than the wall overheating on the provided for the refrigerant evaporation, with a thin film of the working liquid wetted heat transfer surface of the evaporator structure. This heat supply on higher
- the energy used to generate the gas bubbles is fed discontinuously to the bubble generation structure by means of a power control module .
- the energy required for the generation of the bubbles is phased, pulsating
- FIG. 1 shows an embodiment of a climate machine according to the invention, in which the bubble generation structure has a fluid guide tube.
- FIGS. 2 a and 2 b each show an embodiment of a climate machine according to the invention, in which the bubble generation structure has electrical heating means.
- Fig. 3 shows an embodiment of an inventive
- An air conditioning machine wherein the bubble generation structure comprises means for introducing a two-phase flow of the working fluid into the working fluid reservoir.
- Fig. 4 shows an embodiment of an inventive
- Air conditioning machine in which a distribution structure for collecting the gas bubbles entrained working fluid and for distributing the working fluid is provided on the evaporator structure in the spray area and a working medium delivery tube is provided.
- FIG. 1 shows an embodiment of a climate machine 1 according to the invention, in which the bubble generation structure 2 has a fluid guide tube 3.
- the bladder- generating structure 2 arranged in the region of the working-medium reservoir 5 is partially flooded by working fluid 7 collected in the working-medium reservoir 5.
- working fluid 7 collected in the working-medium reservoir 5.
- Structural area targeted strong spurting gas bubbles 8 are generated in the working fluid 7. Of entrained in the working ⁇ liquid 7 gas bubbles 8 entrained
- Fluid guide tube 3 is traversed by a refrigerant whose temperature is sufficient to introduce sufficient heat energy in the working fluid 7 to produce the gas bubbles 8 by nucleate boiling.
- the evaporator structure 10 is formed by a tube forming a coolant flow line 11.
- the evaporator structure 10 has a heat transfer surface 13 formed by a porous material (porous layer), which is wetted by the entrained working fluid 7 with a working fluid film. The latter is due to the incident on the evaporator structure 10th
- Gas bubbles 8 shown symbolically.
- the evaporator structure 10 as a heat exchanger allows a surface wetting with thin working fluid films.
- the working fluid 7 of the working fluid film evaporates, whereby the cooling liquid passage 11 and the coolant flowing through it is cooled.
- Bubble generation structure 2 arranged spatially one above the other and can cyclically change as the evaporator and
- the partial-flow bubble generation structure 2 based on tube geometries in this embodiment transfers heat the cooling liquid flowing through it to the working ⁇ liquid 7 and thus can be also called a lower heat exchanger ⁇ .
- the hydraulic connection of the two heat exchangers can be serial or parallel. In the figures, only the connections of the cooling liquid passage 10 and the likewise
- Coolant fluid conducting fluid guide tube 3
- the bubble generation structure 10 may be constructed with different gap spacings of the grooves 15 in some embodiments of the invention. Between narrower gap distances, a greater overheating can form, whereby the generation of the gas bubbles 8 can be localized to certain parts of the longitudinal extent of the fluid guide tube 3.
- the gap distances of the grooves 15 are advantageously in a range of less than 1 mm.
- Grooves 15 thus form surface structures for increasing the heat transfer to the working fluid.
- the increase in the heat transfer to the working fluid can also be achieved by closely juxtaposed round or flat tubes and deflections, so locally there is a greater heat input.
- the heat transfer surface can also be treated by a surface treatment.
- Surface of the evaporator structure a good wetting behavior can be achieved.
- Porous structures have the advantage that they extend the residence time of the working fluid, but must be thermally well connected to the heat-emitting tube, ie thedefactkeits die admir, and should have only a small thickness of less than 5 mm on ⁇ wise.
- Examples of porous structures are metallic fibers, sponges and / or foams. The advantages of these porous structures are high specific surface areas which allow a good absorption of the splashing working fluid, the good working fluid distribution due to capillary action and the increased thermal conductivity through the metallic porous structure in comparison to
- the bubble generation structure 2 is in the illustrated embodiment in the working fluid sump, ie the working fluid reservoir 5, incorporated, but can also be supplied eg by capillary structures of a working fluid pool with working fluid 7. With alter ⁇ nierender use of the evaporator structure 10 as an evaporator and condenser, the working fluid sump as
- Condensate collecting serve When used in parallel, the condensate supply via a throttle body from the condenser.
- the existing pressure difference which comprises about 10 to 50 mbar, can also be used in the generation
- spraying gas bubbles 8 are introduced by targeted introduction of the two-phase flow.
- Working fluid reservoir 5 and the bubble generation structure 2 of the heat exchanger according to the invention is preferably carried out at the bottom of a sorption 17, ie under ⁇ half an evaporator structure.
- This has the advantage that all dripping during the condensation work ⁇ liquid 7 collects in the working fluid sump on the ground and can be evaporated there again.
- Working fluid 7 can consequently not be lost, ie in places arrive where they can be difficult activated / evaporated.
- FIGS. 2a and 2b respectively show an embodiment of a climate machine 1 according to the invention, in which the bubble generation structure 2 is e.g. electrical heating means (pins) for supplying heat to the working fluid 7
- the bubble generation structure 2 is e.g. electrical heating means (pins) for supplying heat to the working fluid 7
- the trained heating means are boiling structures 20 and are arranged at the bottom of the working fluid reservoir 5, so that boiling areas are formed there.
- the figures show two differing arrangements of the boiling ranges and evaporator structures 10.
- the evaporator structure 10 is arranged over the working medium reservoir 5 in a planar manner.
- the heating means are arranged distributed over the surface of the working fluid reservoir 5.
- the Ver ⁇ liner structure 10 has evenly along the cooling liquid through line 11 distributed cooling fins 22.
- the heating means of the bubble generation structure 2 are arranged only in the regions with free channel cross sections of the evaporator structure 10 at the bottom of the working medium reservoir 5. They therefore form locally arranged
- the evaporator structure 10 has a plurality of partial evaporators, each with a cooling fins 22 comprising cooling liquid passage 11. As free
- Channel cross sections are the areas between the
- Partial evaporators called.
- the heating means can also be distributed in the working fluid reservoir or in the form of a
- Heat exchanger be introduced.
- the heating takes place from the bottom or the bottom of the working fluid reservoir 5.
- B. be integrated small electrical heating elements and / or heat pipes. Is the required energy for gas bubble formation not by a
- the evaporator structure 10 is characterized by a very good wetting behavior. This can e.g. be achieved by mechanical processing in the form of grooves, pins, selectively generated roughness and / or by a hydrophilic or contact angle reducing surface coating and / or chemical pretreatment.
- FIG. 3 shows an embodiment of a climate machine 1 according to the invention, in which the bubble generation structure 2 has means for introducing a two-phase flow 30 of the working fluid 7 into the working fluid reservoir 5.
- the nucleate boiling and the associated spraying of the working fluid 7 are not initiated by a completely or partially flooded structure 35 for heating the working fluid 7, but rather by supplying the condensate reflux from a
- the rising steam or gas bubbles 8 provide for spraying the working fluid 7 and wetting the non-flooded, cooling liquid-carrying evaporator structure 10 or its heat transfer surface with a film 31 of working fluid.
- the means for introducing a two-phase flow 30 of the working fluid are referred to as a perforated tube
- the structure 35 eg a coolant-carrying tube, is flooded in the illustrated embodiment in the working fluid reservoir 5.
- This tube can be used for preheating the working fluid 7 in the working medium ⁇ reservoir 5.
- FIG. 4 shows an embodiment of a climate machine 1 according to the invention, in which a distributor structure 40 for collecting working fluid 7 entrained in the gas bubbles 8 and for distributing the working fluid onto the heat transfer surface of the spray zone Evaporator structure 10 is provided and a working medium delivery tube 42 is provided.
- the entrained by the gas bubbles 8 working fluid 7 wets not directly, as in the embodiments of Figures 1 to 3, or only partially directly
- Heat exchanger surface of the evaporator structure 10 but it is channeled through a distribution system 44 of the distribution structure 40 generates the wetting.
- the evaporator structure 10 has two partial evaporators, each of a cooling liquid passage 11 with parallel to each other
- the heat transfer surface of the evaporator structure 10 may also be e.g. be formed only from the surface of the cooling liquid passage 11.
- the distributor structure 40 has a running as a splash guard 45 for the working fluid
- the funnel-shaped Häscheaurschreibe 42 (funnel shape) is used to exploit the buoyancy of the gas bubbles 8 to the evaporator structure 10 from above with
- Spraying working fluid 7 or sprinkle The wide, open filling end 47 of the funnel shape is for this purpose immersed in the working fluid 7 in the working fluid reservoir above a heating means forming the bubble generation structure 2.
- a heating means By the heating means, the heat input into the working fluid 7 for gas bubble generation.
- the rising above the heating medium in the working fluid 7 gas bubbles 8 are captured by the funnel shape and lead to a squirting of working fluid 7 from the narrow open end 48 of the funnel shape.
- the working fluid ejected into the spray area in this way is deflected downwards by the distributor cap. This leads to a corresponding extension of the Spray area on the area of the distribution system 44 and the evaporator structure 10th
- the invention relates to a climate machine 1 with a heat transfer surface 13 forming evaporator ⁇ structure 10 and a working fluid. 7
- thermoelectric structure 10 including working fluid reservoir 5, wherein the evaporator structure 10 has a cooling liquid passage 11 and a method for their operation.
- a bubble generating structure 2 is provided, wherein the bubble generating structure 2 at least partially flooded by the working liquid 7, and / or wettable working ⁇ liquid 7, is arranged in the region of the working medium ⁇ reservoirs 5 and wherein the evaporator structure 10 in such a manner in an injection area of the working liquid 7 arranged that the heat transfer surface 13 is wetted by a working fluid film 31 entrained by the bubble generating structure 2 in the working fluid 7 and can be introduced and / or introduced and ascending in the working fluid 7 gas bubbles 8 working fluid 7.
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- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016215591.1A DE102016215591A1 (de) | 2016-08-19 | 2016-08-19 | Klimamaschine |
| PCT/EP2017/069904 WO2018033418A1 (de) | 2016-08-19 | 2017-08-07 | Klimamaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3500807A1 true EP3500807A1 (de) | 2019-06-26 |
| EP3500807B1 EP3500807B1 (de) | 2023-05-03 |
Family
ID=59523154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17748788.1A Active EP3500807B1 (de) | 2016-08-19 | 2017-08-07 | Hybrider verdampfer |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3500807B1 (de) |
| DE (1) | DE102016215591A1 (de) |
| WO (1) | WO2018033418A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114449871B (zh) * | 2022-03-03 | 2024-08-06 | 合肥工业大学 | 一种微小双通道螺旋型沸腾换热式均温冷却板 |
| WO2025029672A2 (en) * | 2023-07-28 | 2025-02-06 | Heatbit Inc. | Computing heat driven sorption-based air-cooling systems and methods |
| DE202023104741U1 (de) | 2023-08-21 | 2024-11-25 | Hochschule für angewandte Wissenschaften München, Körperschaft des öffentlichen Rechts | Fallfilmwärmeübertrager mit Kapillarstruktur |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT411395B (de) | 1999-07-07 | 2003-12-29 | Vaillant Gmbh | Wärmetauscher |
| DE50100110D1 (de) * | 2000-08-04 | 2003-03-27 | Vaillant Gmbh | Sorptionswärmepumpe |
| DE10232726A1 (de) | 2001-07-21 | 2003-02-06 | Vaillant Gmbh | Wärmepumpen-Modul für eine Adsorptionswärmepumpe |
| JP4186738B2 (ja) * | 2003-07-17 | 2008-11-26 | 株式会社デンソー | 吸着式冷凍機 |
| DE102004049411B4 (de) * | 2004-10-08 | 2015-06-03 | Viessmann Werke Gmbh & Co Kg | Vakuum-Sorptionsvorrichtung |
| DE102008028854A1 (de) | 2008-06-19 | 2009-10-01 | Sortech Ag | Verdampfer und Kältemaschine oder Wärmepumpe |
| DE102011015153A1 (de) | 2011-03-25 | 2012-09-27 | Sortech Ag | Verfahren und Vorrichtung zum Ausführen eines alternierenden Verdampfungs- und Kondensationsprozesses eines Arbeitsmediums |
| DE102011053310B4 (de) * | 2011-09-06 | 2016-07-28 | Technische Universität Berlin | Verfahren zum Betreiben einer Kälteanlage und Kälteanlage |
| WO2016059777A1 (ja) * | 2014-10-15 | 2016-04-21 | 株式会社デンソー | 吸着器 |
-
2016
- 2016-08-19 DE DE102016215591.1A patent/DE102016215591A1/de not_active Ceased
-
2017
- 2017-08-07 EP EP17748788.1A patent/EP3500807B1/de active Active
- 2017-08-07 WO PCT/EP2017/069904 patent/WO2018033418A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018033418A1 (de) | 2018-02-22 |
| DE102016215591A1 (de) | 2018-03-08 |
| EP3500807B1 (de) | 2023-05-03 |
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