SE538922C2 - A substance to be used in an absorption machine - Google Patents

A substance to be used in an absorption machine Download PDF

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Publication number
SE538922C2
SE538922C2 SE1551159A SE1551159A SE538922C2 SE 538922 C2 SE538922 C2 SE 538922C2 SE 1551159 A SE1551159 A SE 1551159A SE 1551159 A SE1551159 A SE 1551159A SE 538922 C2 SE538922 C2 SE 538922C2
Authority
SE
Sweden
Prior art keywords
compartment
absorption machine
machine according
compartments
lil
Prior art date
Application number
SE1551159A
Other languages
English (en)
Other versions
SE1551159A1 (sv
Inventor
Bolin Göran
Olsson Ray
Original Assignee
Climatewell Ab (Publ)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Climatewell Ab (Publ) filed Critical Climatewell Ab (Publ)
Priority to SE1551159A priority Critical patent/SE538922C2/sv
Priority to EP16766521.5A priority patent/EP3347655A1/en
Priority to BR112018001248A priority patent/BR112018001248A2/pt
Priority to CN201680046665.3A priority patent/CN107923670A/zh
Priority to PCT/EP2016/071421 priority patent/WO2017042383A1/en
Priority to JP2018512389A priority patent/JP2018526610A/ja
Priority to CA2995023A priority patent/CA2995023A1/en
Priority to US15/758,218 priority patent/US20180252448A1/en
Priority to AU2016319305A priority patent/AU2016319305A1/en
Priority to KR1020187007093A priority patent/KR20180051532A/ko
Publication of SE1551159A1 publication Critical patent/SE1551159A1/sv
Publication of SE538922C2 publication Critical patent/SE538922C2/sv

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
    • F25B30/00—Heat pumps
    • F25B30/04—Heat pumps of the sorption type
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • C09K5/047—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for absorption-type refrigeration 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
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
    • 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
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • 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
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/04—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being ammonia evaporated from aqueous solution
    • 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
    • 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
    • F25B37/00—Absorbers; Adsorbers
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
    • F25B49/043—Operating continuously
    • 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
    • F25B2315/00—Sorption refrigeration cycles or details thereof
    • F25B2315/003—Hydrates for sorption cycles
    • 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
    • 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
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Gas Separation By Absorption (AREA)

Description

538 922 the first compartment comprises Lil-sHzO and wherein at least one of the first compartment and the second compartment comprises NHs.
[OO08]|n one embodiment both the first and second compartments are in heat conducting connection with at least one surrounding system adapted to transfer heat to and from said first and second compartments.
[0009]|n one embodiment the pressure can be regulated in at least one of said first and second compartments. ln yet another embodiment the pressure can be held higher in one of the at least two compartments compared to the other(s). lt is conceived that the pressure regulation takes place with known methods such including but not limited to valves, pressure reducing valves and pumps.
[0010]ln one embodiment the absorption machine is a chemical heat pump working according to the absorption principle, including: a reactor part comprising LiI-3H2O and arranged to be heated and cooled by an external medium, an evaporator/condenser part containing the portion of the NHs that exists in a condensed state, and arranged to be heated and cooled by an external medium, and a channel for the vapor phase of NHa, the channel connecting the reactor part and the evaporator/ condenser part to each other.
[OO11]ln one embodiment at least one of the first compartment and the second compartment comprises particles. ln another embodiment at least one of the first compartment and the second compartment comprises particles with a maximum diameter in the range 1-100 nm. ln yet another embodiment at least one of the first compartment and the second compartment comprises two dimensional particles. Two dimensional particles include but are not limited to particles of graphene, which extends mainly in two dimensions with the third dimension being only one or a few atom layers. ln a further embodiment at least one of the first compartment and the second compartment comprises particles comprising graphene. Advantages of using particles is that the heat conductivity is improved. The particles improve the heat transfer from the solution of Li|-3H2O and/or NHs, to the wall enclosing the compartment. 538 922
[0012]Further aspects and embodiments are defined in the appended claims, which are specifically incorporated herein by reference.
[0013]One advantage is that an absorption machine such as a chemical heat pump using LiI-3H2O + NHs can be made smaller and lighter with the same power. Further AT can be improved. The vapor pressure in the system can be kept relatively high.
Brief description of the drawinQs
[0014] The invention is now described, by way of example, with reference to the accompanying drawings, in which:
[0015] Fig. 1 shows the vapor pressure for Lil-3H2O + NHs at different concentrations of NHs measured in M (mole/Iitre)
[0016] Fig 2 shows a diagram from an experiment with discharging a system with Li|-3H2O + NHs.
Detailed description
[0017] Before the invention is disclosed and described in detail, it is to be understood that this invention is not limited to particular compounds, configurations, method steps, substrates, and materials disclosed herein as such compounds, configurations, method steps, substrates, and materials may vary somewhat. lt is also to be understood that the terminology employed herein is used for the purpose of describing particular embodiments only and is not intended to be limiting since the scope of the present invention is limited only by the appended claims and equivalents thereof.
[0018]lt must be noted that, as used in this specification and the appended claims, the singular forms “a”, “an” and “the” include plural referents unless the context clearly dictates otherwise. 538 922 [0O19]lf nothing else is defined, any terms and scientific terminology used herein are intended to have the meanings commonly understood by those of skill in the art to which this invention pertains.
[0020] For absorption machines in general utilizing both NHe, and water it is a problem that water follows with NHs when the mixture is heated and the water following the NHs constitutes a problem. ln the present invention this is solved by using Lil-3H2O to which NHs is absorbed. The vapor pressure for Lil-3H2O + NHs is depicted in Fig 1 and as can be seen a considerable AT can be achieved. With 4 M of NHs the AT is close to 70°C and with 1.77 M close to 120°C.
[O021]The solution of Lil-3H2O and NHa does comprise water, but in this environment water has such a low vapor pressure so that the amount of water following NHs during heating does not affect the performance to any notable degree. Further this water goes back together with NHs during discharging.
[0022]Temperature stability tests have given that a temperature of 200°C does not affect the stability of the system.
[0023]Fig 2 discloses a diagram from a discharge where Lil-3H2O is kept at about 60°C while stirred with a magnetic stirrer while NHs is taken up from an insulated compartment. The NHe, is a free fluid in the insulated compartment, i.e. a reactor. lt can be seen that the cooling capability is high.
[0024]Since NHs is miscible with water it is conceived that some of the NHs may form a solution with accessible H20 molecules from Lil-3H2O.
[0025]|n order to check for the presence of crystals a solution of Li|-3H2O and NHs with 2.55 M NHe, was put in a glass flask on an ice bath at ambient pressure.
No crystallization could be detected. ln another experiment 100g of LiI-3H2O was put in a flask and NHs was added to a pressure of 80 mbar corresponding to 1.77 M NHa. The solution was cooled on ice, but no crystallization could be Seen. 538 922 [0O26]|n order to investigate the stability the following test was performed: 100g Lil-3H2O was mixed with 4 moles NHß. This was heated during stirring in an evaporator connected to a condenser. The condenser was kept a room temperature (about 20°C). The temperature in the evaporator was increased to 200°C at a pressure of 6.3 bar. At this temperature and pressure a valve between the evaporator and the condenser was closed and the reactor was allowed to cool to room temperature. The condenser was cooled with ice to 0°C and the pressure was 4.3 bar. NH3 from the condenser was removed and replaced with new NHs. This was also cooled with ice to 0°C and the pressure was still 4.3 bar. This shows that the condenser after uptake of NHe, from the condenser at 200°C has not received any water.
[0027]All the described alternative embodiments above or parts of an embodiment can be freely combined without departing from the inventive idea as long as the combination is not contradictory.
[O028]Other features and uses of the invention and their associated advantages will be evident to a person skilled in the art upon reading the description and the examples.
[0029]lt is to be understood that this invention is not limited to the particular embodiments shown here. The embodiments are provided for illustrative purposes and are not intended to limit the scope of the invention since the scope of the present invention is limited only by the appended claims and equivalents thereof.

Claims (9)

538 922 CLAIMS
1. An absorption machine comprising at least a first and a second compartment in fluid connection with each other, wherein the first compartment comprises Lil-3H2O and wherein at least one of the first compartment and the second compartment comprises NHs.
2. The absorption machine according to claim 1, wherein both the first and second compartments are in heat conducting connection with at least one surrounding system adapted to transfer heat to and from said first and second compartments.
3. The absorption machine according to any one of claims 1-2, wherein the pressure can be regulated in at least one of said first and second compartments.
4. The absorption machine according to any one of claims 1-3, wherein the pressure can be held higher in one of the at least two compartments compared to the other(s).
5. The absorption machine according to any one of claim 1-4, wherein the absorption machine is a chemical heat pump working according to the absorption principle, including: a reactor part comprising Lil-3H2O and arranged to be heated and cooled by an external medium, an evaporator/condenser part containing the portion of the NH3 that exists in a condensed state, and arranged to be heated and cooled by an external medium, and a channel for the vapour phase of NHs, the channel connecting the reactor part and the evaporator/ condenser part to each other.
6. The absorption machine according to any one of claim 1-5, wherein at least one of the first compartment and the second compartment comprises particles.
7. The absorption machine according to any one of claim 1-6, wherein at least one of the first compartment and the second compartment comprises particles with a maximum diameter in the range 1-100 nm. 538 922
8. The absorption machine according to any one of claim 1-7, wherein at least one of the first compartment and the second compartment comprises two dimensional particles.
9. The absorption machine according to any one of claim 1-8, wherein at least one of the first compartment and the second compartment comprises particles comprising graphene.
SE1551159A 2015-09-10 2015-09-10 A substance to be used in an absorption machine SE538922C2 (sv)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE1551159A SE538922C2 (sv) 2015-09-10 2015-09-10 A substance to be used in an absorption machine
EP16766521.5A EP3347655A1 (en) 2015-09-10 2016-09-12 A mixture to be used in an absorption machine
BR112018001248A BR112018001248A2 (pt) 2015-09-10 2016-09-12 mistura a ser usada em uma máquina de absorção
CN201680046665.3A CN107923670A (zh) 2015-09-10 2016-09-12 用于吸收机的混合物
PCT/EP2016/071421 WO2017042383A1 (en) 2015-09-10 2016-09-12 A mixture to be used in an absorption machine
JP2018512389A JP2018526610A (ja) 2015-09-10 2016-09-12 吸収装置に使用される混合体
CA2995023A CA2995023A1 (en) 2015-09-10 2016-09-12 A mixture to be used in an absorption machine
US15/758,218 US20180252448A1 (en) 2015-09-10 2016-09-12 A mixture to be used in an absorption machine
AU2016319305A AU2016319305A1 (en) 2015-09-10 2016-09-12 A mixture to be used in an absorption machine
KR1020187007093A KR20180051532A (ko) 2015-09-10 2016-09-12 흡수기에 사용되는 혼합물

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1551159A SE538922C2 (sv) 2015-09-10 2015-09-10 A substance to be used in an absorption machine

Publications (2)

Publication Number Publication Date
SE1551159A1 SE1551159A1 (sv) 2017-02-14
SE538922C2 true SE538922C2 (sv) 2017-02-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SE1551159A SE538922C2 (sv) 2015-09-10 2015-09-10 A substance to be used in an absorption machine

Country Status (10)

Country Link
US (1) US20180252448A1 (sv)
EP (1) EP3347655A1 (sv)
JP (1) JP2018526610A (sv)
KR (1) KR20180051532A (sv)
CN (1) CN107923670A (sv)
AU (1) AU2016319305A1 (sv)
BR (1) BR112018001248A2 (sv)
CA (1) CA2995023A1 (sv)
SE (1) SE538922C2 (sv)
WO (1) WO2017042383A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3283215B1 (en) * 2015-04-16 2020-02-19 SaltX Technology AB Material for a chemical heat pump

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312077A (en) 1964-03-17 1967-04-04 Robertshaw Controls Co Absorption refrigeration system
US5547600A (en) * 1995-05-05 1996-08-20 Carrier Corporation Absorption refrigeration system working fluid with molybdate, borate, silicate inhibitor blend
JP2835945B2 (ja) * 1996-02-26 1998-12-14 中国電力株式会社 吸収冷凍機
US5946937A (en) * 1998-01-14 1999-09-07 Gas Research Institute Dual loop triple effect absorption chiller utilizing a common evaporator circuit
CN1252516A (zh) * 1998-10-22 2000-05-10 潘卫东 一种吸收式制冷方法及其系统
SE515688C2 (sv) * 1998-12-18 2001-09-24 Suncool Ab Kemisk värmepump samt förfarande för kylning och/eller uppvärmning
US7434411B2 (en) * 2003-12-15 2008-10-14 Drost Kevin M Droplet desorption process and system
SE535301C2 (sv) * 2011-03-02 2012-06-19 Climatewell Ab Publ Salt överdraget med nanopartiklar
CN102679617B (zh) * 2012-06-21 2014-07-02 山东大学 一种压缩驱动吸附制冷方法及热泵系统

Also Published As

Publication number Publication date
CN107923670A (zh) 2018-04-17
US20180252448A1 (en) 2018-09-06
KR20180051532A (ko) 2018-05-16
BR112018001248A2 (pt) 2018-09-18
JP2018526610A (ja) 2018-09-13
AU2016319305A1 (en) 2018-04-26
WO2017042383A1 (en) 2017-03-16
EP3347655A1 (en) 2018-07-18
SE1551159A1 (sv) 2017-02-14
CA2995023A1 (en) 2017-03-16

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