WO2020242401A1 - Système de refroidissement et de chauffage par absorption à efficacité énergétique accrue - Google Patents

Système de refroidissement et de chauffage par absorption à efficacité énergétique accrue Download PDF

Info

Publication number
WO2020242401A1
WO2020242401A1 PCT/TR2019/050404 TR2019050404W WO2020242401A1 WO 2020242401 A1 WO2020242401 A1 WO 2020242401A1 TR 2019050404 W TR2019050404 W TR 2019050404W WO 2020242401 A1 WO2020242401 A1 WO 2020242401A1
Authority
WO
WIPO (PCT)
Prior art keywords
working fluid
exits
refrigerant
sorbent
low concentration
Prior art date
Application number
PCT/TR2019/050404
Other languages
English (en)
Inventor
Murat İŞLER
Original Assignee
Maxeff Teknoloji̇ Anoni̇m Şi̇rketi̇
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 Maxeff Teknoloji̇ Anoni̇m Şi̇rketi̇ filed Critical Maxeff Teknoloji̇ Anoni̇m Şi̇rketi̇
Priority to PCT/TR2019/050404 priority Critical patent/WO2020242401A1/fr
Publication of WO2020242401A1 publication Critical patent/WO2020242401A1/fr

Links

Classifications

    • 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
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Definitions

  • the invention relates to an absorption heating and cooling systems.
  • the invention is particularly related to an absorption heating and cooling system which comprises usage of working fluids that exhibit upper critical solution temperature (UCST) and lower critical solution temperature (LCST) behavior and decomposition thereof according to the extraction principal; wherein the energy consumed per unit cooling is decreased, energy efficiency is increased.
  • UST upper critical solution temperature
  • LCST lower critical solution temperature
  • the energy consumption issue is one of the main problems for all countries in the world. Parallel to the increase of the population and the industrialization day by day, also the energy consumption increases. In addition to the increasing energy costs today, when we consider the global warming and carbon release values, using energy efficiently shall be evaluated not only in terms of electrical costs but also in terms of its effects to the environment. In order to enable using current energy sources more efficiently, systems that enable high energy efficiency are required.
  • An exemplary absorption cooling system flow within the present state of the art is as follows; the refrigerant at the low pressure gas phase evaporated in the evaporator passes to the sorber, the refrigerant is cooled by means of the high concentration refrigerant sorbent mixture which comes after losing its heat in the exchanger that it had previously in the sorber, condensation is realized during absorption and the refrigerant condensates and thus transmits the energy on it through the cooling tower into the tower water.
  • the concentration of the high concentration refrigerant sorbent mixture decreases by the absorbed refrigerant and thus becomes a low concentration refrigerant sorbent mixture and is directed from the sorber to the exchanger by means of the pump.
  • the low concentration refrigerant sorbent mixture which is slightly heated by passing through the heat recovery system exchanger enters into the boiler.
  • the low concentration refrigerant sorbent mixture is heated in the boiler with the heat coming from the heat source and while an amount of refrigerant is evaporated and directed to the condenser, low concentration refrigerant sorbent mixture that has decreased refrigerant becomes a high concentration refrigerant sorbent mixture and thus exits from the generator and goes to the heat recovery exchanger.
  • the refrigerant which is condensed within the condenser unit liquefies and transmits the gasification enthalpy to the coming water through the cooling tower. Liquid form refrigerant goes to the evaporator after passing though the expansion valve. It is evaporated in the evaporator by means of taking heat and the cycle is completed.
  • the subject of the invention is related to an energy cycle system which has a multistage absorption cooling machine or absorption heat pump. All of the multi stage absorption machines have at least one high pressure generator wherein the cooling substance at the highest temperature level that exit out of the machine is extracted from the sorbent substance, at least one intermediate pressure generator wherein again cooling substance is extracted from the sorbent substance and herein the intermediate pressure generator is operated by means of the condensation heat of the steam of the cooling substance extracted from the high pressure generator.
  • This heat transfer is performed by means of a first thermic connection unit, the additional drive heat at the intermediate temperature level or a few drive heats having different average temperature level are connected to the first thermic connection unit by means of a second thermic connection unit.
  • the present invention is related to an absorption heating and cooling system with increased energy efficiency, which fulfills the abovementioned requirements, eliminates all disadvantages and brings some additional advantages.
  • the prior aim of the invention is to enable the usage of working fluids which consists of mixture of at least one refrigerant and at least one sorbent; are decomposed according to the extraction principal by exhibiting upper critical solution temperature (UCST) or lower critical solution temperature (LCST) behavior at so I id- liquid, liquid-liquid or gas-liquid phase, in order to increase the energy efficiency in the absorption heating cooling systems.
  • UST upper critical solution temperature
  • LCST lower critical solution temperature
  • Another aim of the invention is to enable an absorption heating and cooling system wherein working fluid that exhibit UCST and LCST behavior are used and decomposed according to the extraction principle; thus, the energy consumed per unit cooling is reduced; energy efficiency is increased.
  • Another aim of the invention is to enable an absorption heating and cooling system which is sensitive against the environment by decreasing carbon release as a result of increasing the energy efficiency.
  • Another aim of the invention is to enable an absorption heating and cooling system which enables to decrease energy costs and economic gain as a result of increasing the energy efficiency.
  • the invention involves working fluids which consists of mixture of at least one refrigerant and at least one sorbent; are decomposed according to the extraction principal by exhibiting upper critical solution temperature (UCST) or lower critical solution temperature (LCST) behavior at solid-liquid, liquid-liquid or gas-liquid phase; in order to be used in the absorption heating and cooling systems for increasing the energy efficiency.
  • said working fluid is selected from the group that consists of Methanol-Nonane, Methanol-Octane, Phenol-Water, [Hbet][Tf 2 N]-water.
  • the invention comprises an absorption heating and cooling cycle method wherein abovementioned working fluid is used, comprising the process steps of; providing cooling by evaporating at least one refrigerant and transforming into a gas refrigerant; providing heating by means of absorbing at least one gas refrigerant with at least one sorbent and transforming into a low concentration working fluid; decomposing said low concentration working fluid as a liquid refrigerant and at least one sorbent by means of bringing to the upper critical solution temperature (UCST) or lower critical solution temperature (LCST).
  • UST upper critical solution temperature
  • LCST lower critical solution temperature
  • the invention comprises an absorption heating and cooling system wherein abovementioned cycle method is used comprising; at least one evaporator wherein at least one liquid refrigerant is evaporated by receiving heat from the environment and thus the cooling is provided;
  • At least one sorber wherein at least one has refrigerant is condensed after being absorbed by at least one sorbent, thus heating is enabled by means of the heat transmitted to the environment; at least one temperature regulator wherein the low concentration working fluid which exits from said sorber is brought to the upper critical solution temperature (UCST) or lower critical solution temperature (LCST); and at least one decomposition unit wherein the low concentration working fluid at critical temperature is decomposed as a liquid refrigerant and sorbent.
  • UST upper critical solution temperature
  • LCST lower critical solution temperature
  • An exemplary embodiment comprises; at least one heat recovery exchanger which is parallel connected to the low concentration working fluid line that exit out of the sorber; is connected between the low concentration working fluid line that exit out of the sorber and the sorbent line that exits out of the decomposition unit and enables heat transfer between two lines and at least one heat recovery exchanger which is connected between the low concentration working fluid line that exit out of the sorber and the liquid refrigerant line that exit out of the decomposition unit and enables heat transfer between the two lines.
  • the exemplary embodiment also comprises at least one pump which increases the pressure of the low concentration working fluid that exits out of the sorber; at least one mechanical power recovery unit which enables recovery of the excessive pressure on the decomposed sorbent or liquid refrigerant in the decomposition unit.
  • Another exemplary embodiment comprises at least one first heat recovery exchanger which is serially connected to the low concentration working fluid line that exits out of the sorber; is connected between the low concentration working fluid that exits out of the sorber and the liquid refrigerant line that exits out of the decomposition unit and enables transfer between the two lines and at least one second heat recovery exchanger which is connected between the low concentration working fluid line that exits our of said first heat recovery exchanger and the sorbent line that exits out of the decomposition unit and enables heat transfer between the two lines.
  • Another exemplary embodiment comprises; at least one first heat recovery exchanger which is serially connected to the low concentration working fluid line that exits out of the sorber; is connected between the low concentration working fluid that exits out of the sorber and the sorbent line that exits out of the decomposition unit and enables transfer between the two lines and at least one second heat exchanger which is connected between low concentration working fluid line that exits out of said first heat recovery exchanger and the liquid refrigerant line that exits out of the decomposition unit and enables heat transfer between the two lines.
  • Figure-1 is a schematic view of the closed cycle within the absorption heating cooling system.
  • Figure-2 is a schematic view of an alternative embodiment which includes parallel connected exchangers within the absorption heating cooling system.
  • Figure-3 is a schematic view of an alternative embodiment which includes serial connected exchangers within the absorption heating cooling system.
  • Figure-4 is a schematic view of an alternative embodiment which includes serial connected exchangers within the absorption heating cooling system.
  • Figure-5 is a schematic view of an alternative embodiment which includes pump and mechanic recovery unit within the absorption heating cooling system.
  • Figure-6 is a liquid-liquid equilibrium phase diagram of the working fluid which consists of Methanol-Nonane mixture used in one embodiment of the invention.
  • Figure-7 is a liquid-liquid equilibrium phase diagram of the working fluid which consists of Methanol-Octane mixture used in one embodiment of the invention.
  • Figure-8 is a liquid-liquid equilibrium phase diagram of the working fluid which consists of Phenol-Water mixture used in one embodiment of the invention.
  • Figure-9 is a liquid-liquid equilibrium phase diagram of the working fluid which consists of [Hbet][Tf2N]-Water mixture used in one embodiment of the invention. Description of the References
  • the invention is related to an absorption heating and cooling system resists to the usage of working fluids which exhibits upper critical solution temperature and lower critical solution temperature, and decomposition of them according to extraction principle; thus, the energy consumed per unit cooling is reduced, energy efficiency is increased.
  • the critical temperature expresses the temperature in which two substances in solid-liquid, liquid-liquid or gas-liquid phase that can be mixed under normal conditions can be fully mixed in a manner to form a homogenous when the temperature increases or in some cases decreases.
  • the critical temperature expresses the temperature which shows variety according to the mixture concentration and is required for bringing two substances in solid-liquid, liquid-liquid or gas-liquid phase into one phase by mixing totally to each other.
  • Critical temperature is a limit temperature; the mixtures can be dissolved at higher temperatures or lower temperatures than the critical temperature according to the behaviors of the liquids.
  • critical temperature expresses the temperature wherein the bond between the substances subject to interaction changes instead of dissolving.
  • the critical temperature expresses the temperature which shows variety according to the concentration of mixture and causes change in the bonds between the substances.
  • the upper critical temperature expresses the upper temperature limit in which all component substances in a mixture (substances at solid- liquid, liquid-liquid or gas-liquid phase) can mix with each other fully.
  • UCST Upper critical solution temperature
  • the mixture is under the UCST temperature degree, the components establish a bond between them and mix totally with each other.
  • the mixture temperature increases to the UCST value then the bond structure between the components is destroyed and the components are decomposed from each other without phase change.
  • the lower critical temperature expresses the lower temperature limit in which all component substances in a mixture (substances at solid- liquid, liquid-liquid or gas-liquid phase) can mix with each other fully.
  • LCST Lower critical solution temperature
  • the working fluid mentioned in the invention comprises sorbent-refrigerant mixtures which exhibit UCST and/or LCST behavior in solid-liquid, liquid-liquid, gas liquid phases.
  • the working fluid used in said systems are decomposed according to the distillation principal.
  • said working fluids with said phase structures are decomposed from each other without phase change by means of the destruction of the bond structures between the components at UCST and/or LCST temperature values.
  • refrigerant expresses a cooling fluid substance, is defined as the substances which enable cooling effect by means of evaporating in the absorption heating and cooling cycle.
  • sorbent expresses an absorptive-absorber substance, is defined as the substances which enable heating effect by means of cooling the refrigerant at the steam phase in the absorption heating and cooling cycle.
  • the working fluid expresses the mixture of the refrigerant and sorbent used in the absorption heating cooling systems; they are the fluid substances which perform the heat transfer in the heating cooling cycle.
  • the working fluid used in the cycle of the absorption heating and cooling systems included within the present state of the art are decomposed by evaporation with the distillation principle by benefiting from the differences in the boiling points of the refrigerant and sorbent within a boiler.
  • the important point of the invention is to use the substances as the working fluid in the absorption heating and cooling systems, whose bond structure among the substances in interaction is subject to change in different temperatures.
  • sorbent and/or refrigerant may have said characteristic; they are enabled to be decomposed from each other by means of bringing the bond between them to the critical temperature (UCST or LCST).
  • UCST or LCST critical temperature
  • sorbent and/or refrigerant may have said characteristic; they are enabled to be decomposed from each other by means of bringing the bond between them to the critical temperature (UCST or LCST).
  • UCST or LCST critical temperature
  • the critical temperature such as UCST or LCST
  • it is required to increase and decrease the temperature of the working fluid.
  • it may be required to heat or cool the working fluid at a temperature regulator, or it can be decomposed directly based on the operating temperature.
  • the working fluid individuals or combinations which are selected among the substances such as heat sensitive ionic liquids, polymers etc. those exhibit UCST or LCST behavior are used as refrigerant and/or sorbent.
  • the preferred working fluids of the invention are; Methanol-Nonane, Methanol-Octane, Phenol-Water, [Hbet][Tf2N]-water mixtures.
  • methanol is selected as the refrigerant, and the nonane is selected as the sorbent; the mixture exhibits LCST behavior ( Figure 6).
  • the working fluid mixture of 50% [Hbet][Tf2N] by weight and 50% water by weight is used.
  • the water is selected as the refrigerant.
  • [Hbet][Tf2N]] betanium bis(trifluoromethylsulfonyl)imide ionic liquid is selected as the sorbent.
  • the working fluid which has a hydrophobic structure, passes to a hydrophilic structure at temperatures more than 550 and water and [Hbet][Tf2N] are decomposed.
  • the critical temperature for the mixture of 50% [Hbet][Tf2N] by weight and 50% water by weight is 550.
  • the critical temperature values for different concentrations are as it is shown in Figure 9.
  • hydrophilic substances before heating and hydrophobic substances after heating to the degrees higher than the critical temperatures can be used.
  • the substances that exhibit such features can be used as both sorbent and refrigerant. Not only mixture forming substances but also various solid, liquid and gas substances and also substances that behave in this manner can be considered within this scope.
  • working fluid solid-fluid working fluids that exhibit UCST or LCST behavior can be used (for example polymer and liquid mixtures).
  • FIG-1 a schematic view of the closed cycle of the preferred embodiment of the absorption heating cooling system subject to the invention is seen.
  • the invention essentially comprises at least one evaporator (103), at least one sorber (101 ), at least one temperature regulator (108); preferably it includes at least one phase decomposition unit (102).
  • Said evaporator (103) is the unit wherein the refrigerant (106) at the liquid phase in the cycle is evaporated by taking heat on itself thus the cooling process is performed.
  • the cooling area is formed around the evaporator (103).
  • Refrigerant (107) output in gas form is realized from the evaporator (103).
  • Said sorber (101 ); is the unit where the absorption of the refrigerant (107) in gas form within the cycle is performed by means of the sorbent (or high concentration working fluid) (105) and the heating process is performed by means of the heat given to the environment during condensation.
  • the heating area is formed around the sorber (101 ).
  • Said decomposition unit (102) is the unit where the low concentration working fluid (104) which is brought to the UCST or LCST critical temperature in the temperature regulator (108) is decomposed as a sorbent (or high concentration working fluid) (105) and liquid refrigerant (106) without phase change according to the extraction principal.
  • the invention includes the absorption heating and cooling cycle method performed in the above defined system.
  • the liquid refrigerant (106) which enters in the evaporator (103) in said cycles seen in Figure 1 is evaporated by means of receiving heat and exits as a gas refrigerant (107).
  • Gas refrigerant (107) enters to the sorber (101 ). Flere it is absorbed by means of mixing with the sorbent (or high concentration working fluid) (105) fed to the sorber (101 ) and exits from the sorber (101 ) as a low concentration working fluid (refrigerant and sorbent mixture) (104).
  • Low concentration working fluid (104) is brought to the required critical temperature (UCST or LCST) for being decomposed as a refrigerant and sorbent after entering into the temperature regulator (108).
  • the decomposed liquid refrigerant (105) is again fed to the evaporator (103).
  • the decomposed sorbent (or high concentration working fluid) (105) is again fed to the sorber (101 ). Therefore, the cycle can be completed with high energy efficiency.
  • the liquid refrigerant in the absorption heating cooling system (100) subject to the invention, the liquid refrigerant
  • gas refrigerant (107) circulating within the cycle are not required to be pure, they may partially comprise sorbent (105). Since the main aim of the system is to create critical temperature difference, as long as it does not affect the proper operation of the system, it will not create any problem that the refrigerant within the cycle may include sorbent. In the most basic form of the absorption heating cooling system cycle, although circulation of the refrigerant in pure form is desired, it may be possible that this may not be realized or may not be required.
  • the components of the system may be configured in a different manner in order to increase the efficiency.
  • the evaporator (103) and the sorber (101 ) can be configured as a single unit.
  • the sorber (101 ) and the decomposition unit (102) can be configured as a single unit so that the absorption and decomposition process can be performed within one unit.
  • the evaporator (103), the sorber (101 ) and the decomposition unit (102) can be found together.
  • the temperature regulator (108) and the decomposition unit (102) can be found together.
  • the alternative embodiments can include various types of pumps in order to enable the transmission of the fluids (refrigerant, sorbent or working fluid).
  • Alternative embodiments can include different types of valves for adjusting, stopping the flow of the fluids within the system which are transferred from one place to another, starting the flow which is stopped previously or increasing the flow rate of the fluid.
  • the refrigerant within the cycle can be overcooled (sub-cool) with an additional cooler. In order to increase the cooling capacity in the cooling system and the efficiency overcooling, is to cool the cooling fluid (refrigerant) at the condensation point under the condensation point.
  • liquid refrigerant (106) in order to increase the efficiency, by enabling the gas refrigerant (107) receive heat from the liquid refrigerant (106), liquid refrigerant (106) can be cooled.
  • sorbent (or high concentration working fluid) (105) fed to the sorber (101 ) is enabled to receive heat from the liquid refrigerant (106) thus the liquid refrigerant (106) can be cooled.
  • Alternative embodiments designed within the absorption heating cooling system subject to the invention can operate at different pressure and/or temperatures.
  • a different component is added in addition to the liquid refrigerant (106) in the evaporator (103), the temperature of the refrigerant at the same pressure can be changed.
  • the alternative embodiments can include at least one heat recovery exchanger (109) for increasing the efficiency.
  • the exchanger (109) enables heat transfer between two fluids (liquid or gas) that have temperature differences between them from one to another without mixing to each other without any physical contact.
  • the low concentration working fluid (104) which exits at the critical temperature from the temperature regulator (108), enters into the decomposition unit (102); and exits as a sorbent (or high concentration working fluid) (105) and liquid refrigerant (106).
  • the temperature herein is different from the temperature of the low concentration working fluid (refrigerant and sorbent mixture) (104) which exit out of the sorber (101 ).
  • Another benefit of the liquid refrigerant (106) heat recovery exchanger (109) is that the flash steam amount formation is reduced when the liquid refrigerant (106) enters into the low-pressure evaporator (103) by decreasing its energy.
  • exchangers (109) can be connected to the system in a serial manner.
  • the low concentration working fluid (refrigerant and sorbent mixture) (104) that exits from the sorber (101 ), before entering into the temperature regulator (108), first passes through the liquid refrigerant (106) heat recovery exchanger (109), then by passing through the sorbent (or high concentration working fluid) (105) heat recovery exchanger (109), it is approximated to the required critical temperature and enters into the temperature regulator (108). Therefore, the energy to be consumed for bringing the fluid to the critical temperature in the temperature regulator (108) can be decreased and the efficiency is increased.
  • pump (1 10) and mechanical power recovery unit (1 1 1 ) can be used for the sake of improvement.
  • An exemplary embodiment for this usage is shown in Figure 5.
  • the low concentration working fluid (refrigerant sorbent solution) (104) that exits after absorption in the sorber (101 ); is decomposed in the decomposition unit (102) as sorbent (105) and liquid refrigerant (106).
  • sorbent (105) or liquid refrigerant (106) transform into gas phase
  • low concentration working fluid (104) is pressurized by means of a pump (1 10).
  • the sorbent (105) and liquid refrigerant (106) couple which have excessive pressure on them are particularly passed through the heat recovery exchangers (109), then through the mechanical power recovery units (1 1 1 ) and recovery of the excessive pressure on them is enabled.
  • the pressures up to the inner pressure of the sorber (101 ) or the evaporator (103) are considered as excessive.
  • Part of the energy consumed for the pump (1 10) by means of the mechanical power recovery units (1 1 1 ) is recovered.
  • a part of the electric of the pump (1 10) can be met by means of a system similar to a turbine which is connected directly to the pump (1 10) used in the alternative embodiments.
  • filters and/or membranes can be used in the decomposition unit (102).
  • steam can be produced by the sorber (101 ), also it may be possible to direct the generated steam to another sorber or system.
  • sorbent any kind of adsorbent (sorbent) product can be used.
  • the number of evaporators (103) can be increased and heat recovery systems can be added among the sorbers (101 ).
  • Various numbers and types of extension valve application can be included to the system. It is possible to operate at different pressures and/or temperatures. In order to create pressure difference and control the flow rate, an extension valve can be added. In order to change the pressure of the liquid refrigerant (106), at least one extension valve to the system from the evaporator (103). A different component is added in addition to the refrigerant in the evaporator (103), the temperature of the refrigerant at the same pressure can be changed.

Abstract

L'invention concerne des fluides de travail : qui sont constitués d'au moins un fluide frigorigène et d'au moins un sorbet ; qui peuvent être en phase solide-liquide, liquide-liquide ou gaz-liquide ; et qui peuvent être décomposés selon le principe d'extraction en présentant une température de solution critique supérieure (UCST)) ou une température de solution critique inférieure (LCST). L'invention concerne également des systèmes et des cycles de refroidissement et de chauffage par absorption dans lesquels ces fluides sont utilisés afin d'augmenter l'efficacité énergétique dans les systèmes de refroidissement à chauffage par absorption.
PCT/TR2019/050404 2019-05-30 2019-05-30 Système de refroidissement et de chauffage par absorption à efficacité énergétique accrue WO2020242401A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2019/050404 WO2020242401A1 (fr) 2019-05-30 2019-05-30 Système de refroidissement et de chauffage par absorption à efficacité énergétique accrue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2019/050404 WO2020242401A1 (fr) 2019-05-30 2019-05-30 Système de refroidissement et de chauffage par absorption à efficacité énergétique accrue

Publications (1)

Publication Number Publication Date
WO2020242401A1 true WO2020242401A1 (fr) 2020-12-03

Family

ID=73552399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2019/050404 WO2020242401A1 (fr) 2019-05-30 2019-05-30 Système de refroidissement et de chauffage par absorption à efficacité énergétique accrue

Country Status (1)

Country Link
WO (1) WO2020242401A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1582247A (en) * 1976-06-25 1981-01-07 Exxon France Transferring heat from relatively cold to relatively hot locations
JPH09280684A (ja) * 1996-04-11 1997-10-31 Ebara Corp 液相分離型吸収式冷凍装置
FR2855869A1 (fr) * 2003-06-06 2004-12-10 Gaz Transport & Technigaz Procede de refroidissement d'un produit, notamment pour la liquefaction d'un gaz, et dispositif pour sa mise en oeuvre
JP2016180583A (ja) * 2015-03-23 2016-10-13 大阪瓦斯株式会社 吸収式冷凍機
WO2017058747A1 (fr) * 2015-09-28 2017-04-06 University Of Florida Research Foundation, Inc. Système de refroidissement par absorption à base de liquide ionique avec un coefficient de performance élevé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1582247A (en) * 1976-06-25 1981-01-07 Exxon France Transferring heat from relatively cold to relatively hot locations
JPH09280684A (ja) * 1996-04-11 1997-10-31 Ebara Corp 液相分離型吸収式冷凍装置
FR2855869A1 (fr) * 2003-06-06 2004-12-10 Gaz Transport & Technigaz Procede de refroidissement d'un produit, notamment pour la liquefaction d'un gaz, et dispositif pour sa mise en oeuvre
JP2016180583A (ja) * 2015-03-23 2016-10-13 大阪瓦斯株式会社 吸収式冷凍機
WO2017058747A1 (fr) * 2015-09-28 2017-04-06 University Of Florida Research Foundation, Inc. Système de refroidissement par absorption à base de liquide ionique avec un coefficient de performance élevé

Similar Documents

Publication Publication Date Title
JP2592625B2 (ja) 熱吸収装置および方法
Horuz A comparison between ammonia-water and water-lithium bromide solutions in vapor absorption refrigeration systems
Xu et al. Comparison of absorption refrigeration cycles for efficient air-cooled solar cooling
US4921515A (en) Advanced regenerative absorption refrigeration cycles
EP2739921B1 (fr) Système de pompe à chaleur et procédé de refroidissement et/ou de chauffage utilisant ledit système
Zhao et al. Performance evaluations of an adsorption-based power and cooling cogeneration system under different operative conditions and working fluids
Crepinsek et al. Comparison of the performances of absorption refrigeration cycles
US5016444A (en) One-and-a-half effect absorption cycle
Shen et al. Analysis of a novel double-effect split mechanical vapor recompression systems for wastewater concentration
JP2011099640A (ja) ハイブリッドヒートポンプ
CN103175332B (zh) 基于双工质对的两级吸收式制冷循环系统及其制冷方法
WO2020242401A1 (fr) Système de refroidissement et de chauffage par absorption à efficacité énergétique accrue
Lin et al. Design and experimental analysis of a vapor compression heat pump combined with double‐stage forced‐circulation evaporators
CN113418320B (zh) 提升低温热源温度的装置及其使用方法
CN103726975B (zh) 低品位热源驱动的两级渗透浓差做功装置及方法
WO2009051582A1 (fr) Concentrateur de membrane destiné à des refroidisseurs à absorption
Ghodeshwar et al. Thermodynamic analysis of lithium bromide-water (LiBr-H2O) vapor absorption refrigeration system based on solar energy
US4283918A (en) Liquid phase separation in absorption refrigeration
JP5389366B2 (ja) 水蒸気圧縮・吸収ハイブリッド冷凍機
CN101603747B (zh) 一种吸收式制冷循环方法
Vasilescu et al. Model for double-effect absorption refrigeration cycle
CN216308270U (zh) 一种热泵机组
VERMA et al. Performance enhancement of absorption refrigeration systems: An overview
JPH05280825A (ja) 吸収式ヒートポンプ
CN112165994A (zh) 在吸收加热冷却系统中使用和以结晶/冷冻/结冰方法工作的、通过固化而分离的方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19930198

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19930198

Country of ref document: EP

Kind code of ref document: A1