Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
  • F24S90/00—Solar heat systems not otherwise provided for
  • F24S90/10—Solar heat systems not otherwise provided for using thermosiphonic circulation
• • 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
  • F25B27/00—Machines, plants or systems, using particular sources of energy
  • F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
  • F25B27/007—Machines, plants or systems, using particular sources of energy using solar energy in 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
  • F25B30/00—Heat pumps
  • F25B30/06—Heat pumps characterised by the source of low potential heat
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
  • Y02A30/00—Adapting or protecting infrastructure or their operation
  • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
  • Y02A30/272—Solar heating or cooling
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
  • Y02B10/00—Integration of renewable energy sources in buildings
  • Y02B10/20—Solar thermal
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/40—Solar thermal energy, e.g. solar towers

Definitions

• a chemical heat pump is disclosed in the published International Patent Application WO 00/37864, the chemical heat pump working according to a particular process, herein called the hybrid principle, the hybrid method or the hybrid process.
• the automatic control of the system and the automatic transport of liquid can be used in any cooling installation.
• the system can be used in a solar- powered cooling installation but other sources of heat are also conceivable.
• Fig. 1 is a schematic view of an installation or a system for cooling e.g. a building, showing how the system is working during daytime,
• FIGS. 4 and 5 are schematic but somewhat more detailed views of an installation working in the same way as the installation or system of Figs. 1 - 3,
• Fig. 6a is a schematic view of a unit pipe or a unit cell having external heat exchange surfaces
• unit cells are complete chemical heat pumps.
• a unit cell is charged by keeping one end of the cell, herein called the second end, warmer than the opposite end, here called the first end. Thereafter, when for example no particular external temperature is applied to its two ends, the heat pump generates cooling in the end, which earlier was less warm, and heat in the end, which earlier was kept warm.
• Such a unit cell is suited to be used for example with solar heating, by placing the second end thereof e.g. in a solar energy collector in order to deliver cooling during the dark hours of the day.
• evaporator 23 of the chemical heat pump are housed in the elongated chamber.
• an active substance is provided, which is carried by a matrix 24 applied to the wall of the chamber at this end and which can absorb the vapour phase of a volatile liquid.
• the condenser/evaporator 23 is lo- cated, in which the volatile liquid, the sorbate, is condensed and evaporated and which can be separated from the other end by a partition 25.
• the partition can be designed as an inner pipe and then a gas channel, in which the vapour phase is transported, passes inside the inner pipe to the second end of the chamber.
• the condenser/evaporator 23 is constituted by the space 27 between the gas channel and the surfaces of the walls in the first end of the chamber, and vapour can be condensed and collected in and evaporated from this space.
• the unit pipe can be manufactured from glass or enameled steel to be totally sealed.
• the unit pipe 21 can also have matrix substance 28 in its condenser/evaporator part 23 and then this matrix substance can be located at the upper portion of the inner surface of the pipe, inside the space 27, so that a channel 29 is formed between the outer surface of the tubular part of the partition 25 and the inner surface of the matrix, allowing transport of condensate and vapour to all portions of the matrix, see Fig. 7b. In Figs.
• Fig. 1 The state when charging the system that can take place during daytime, i.e. during the light parts of the day, is shown in Fig. 1.
• the function of the system in the charging state is as follows:
• the heated liquid will ascend, as shown by the arrow 1, because of the difference in weight due to the fact that the density of the heated quantity of liquid is lower than the density of the colder parts of the liquid, towards a cooling source, also called a heat sink, such as a cooling flange Kf mounted to the uninsulated, upper part of the upper con- tainer B.
• a cooling source also called a heat sink
• the ascending liquid is cooled by the fact that the cooling flange transfers the considerably lower temperature of the surrounding colder air to the ascending liquid, whereby it becomes heavier and thereafter moves downward, as shown by the arrow 3, and again is cooling the first part Tl of the unit pipe R.
• the upper container B should be located so that layered differences in liquid temperature are actually obtained, and a condition for this to work can be that it all the time is in a state of rest, without any forced stirring, and that it for example is not exposed to too strong vibrations.
• This circular flow in the upper container B continues as long as the second end T2 of the unit pipe R is being heated, i.e. in the special case, when the sun is shining on the unit pipe, and the cooling flange Kf at the same time has a temperature lower than that of the liquid Ll in the upper container close to the first end Tl of unit pipe. All this time the heat pump in the unit pipe R is also charged.
• the state when discharging the system which according to the discussion above can take place in the night, i.e. during the dark part of the day, is shown in Fig. 2.
• the function of the system in the discharging state is as follows: After the heating of the second end T2 of the unit pipe R has ended, i.e. in the special case after sunset and when the temperature of the surrounding air decreases, the temperature of the unit pipe R in the second part T2 of the pipe located outside the upper container B will decrease, in the special case both due to the decrease of the temperature of the ambient air and because thermal energy is emitted by radiation from the outer surface of the unit pipe towards the sky.
• the liquid in the upper container B around the unit pipe R will be cooled and by this fact, due to the difference in density and to gravitation, be transported downwards, in the direction of the arrow 5, to the inner space filled with the liquid L2 in the lower container Kvf. Then, the cold liquid will pass downwards from the bottom of the inner space of the upper container B through one or more pipes 7 extending from the bottom of the upper container to the inner space of the second container Kvf.
• the pipes 7 can for example be substantially straight and have a substantially vertical course as shown.
• the pipe or pipes must be located so that liquid can be transported, only by the effect of gravitation, from its/their upper end/ends to its/their lower end/ends. It means that no S-formed bend of the type found in water traps can be allowed in the pipe/pipes. It can also be said in the way that when one moves along the pipe from the upper end thereof the movement shall all the time be in the same direction, i.e. downwards, and thus there must not be any part of the pipe, where one, in such a movement, changes one's direction and instead would move upwards, towards a position located at a higher vertical level. It also applies to the pipes that will be described below.
• the lower container Kvf can be thermally insulated using a thermally insulating, enclosing cover indicated at 12, for example at all its outer surfaces as shown.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Mechanical Engineering (AREA)
• Thermal Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (7)

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Family Cites Families (4)

• 2008
  • 2008-06-16 SE SE0801406A patent/SE533461C2/sv not_active IP Right Cessation
• 2009
  • 2009-06-16 WO PCT/SE2009/000304 patent/WO2009154537A1/en active Application Filing
  • 2009-06-16 EP EP09766927A patent/EP2315988A1/en not_active Withdrawn
  • 2009-06-16 CN CN2009801233627A patent/CN102084195A/zh active Pending
  • 2009-06-16 BR BRPI0915042A patent/BRPI0915042A2/pt not_active IP Right Cessation
• 2010
  • 2010-11-05 ZA ZA2010/07951A patent/ZA201007951B/en unknown
  • 2010-12-14 IL IL209990A patent/IL209990A0/en unknown

Non-Patent Citations (1)

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