EP3169945A1 - Cascade cold water generation system and method - Google Patents
Cascade cold water generation system and methodInfo
- Publication number
- EP3169945A1 EP3169945A1 EP15763432.0A EP15763432A EP3169945A1 EP 3169945 A1 EP3169945 A1 EP 3169945A1 EP 15763432 A EP15763432 A EP 15763432A EP 3169945 A1 EP3169945 A1 EP 3169945A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cold
- air
- volume
- hot
- vortex
- 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.)
- Withdrawn
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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
- F25B9/04—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect using vortex effect
Definitions
- the present invention relates to a general purpose cold water and cold air generation system and method especially used in vehicles.
- the cold water generators known in the state of the art have complex structures, and also have high volume and weight values. For studies under -20°C with the cold water generators in the state of the art, expensive fluids and expensive system equipment are required. Expensive and complex components are required for the cold water generators known in the technique to realize heating function at the same time.
- the cold water generators in the state of the art operating with vortex method are inefficient, large part of the cold water which is generated is released to the environment and causes energy loss.
- Cold water generators with closed pressurized system operating with vortex method and using pressurized air have inefficient method of reusing the air which is higher than atmospheric pressure as a result of expansion. Noise level is high in cooling systems using vortex method.
- the Unites States patent document US2009235672 an application in the state of the art, discloses a two-stage cooling system.
- the said system comprises two vortex tubes.
- the said vortex tubes give cold air into a cabin.
- United States Patent Document no US4333017 another application known in the state of the art, discloses a system and method for closed loop vortex operations.
- the said system uses two vortex tubes.
- the hot outlets of the said tubes form one loop, and their cold outlets form another loop. These loops then are connected at an intersection point.
- the United States patent document no. US6293108 discloses a regenerative refrigeration system with mixed refrigerants.
- the said system comprises two vortex tubes operating in closed loop.
- one of the said vortex tubes is connected to the inlet of the first condenser, and a second vortex tube is connected at the outlet of the said condenser.
- the objective of the present invention is to provide a cascade cold water generation system and method which enables more economical cold water generation relative to similar systems with pressurized air.
- Another objective of the present invention is to provide a cascade cold water generation system and method which can easily reach temperatures below -20°C.
- a further objective of the present invention is to provide a cascade cold water generation system and method which has a simple structure, takes small space, and the noise level of which is decreased.
- Figure 1 is the flowchart of the cold water generation method.
- Figure 2 is the schematic view of the cold water generation method.
- the inventive cascade cold water generation system (1) essentially comprises:
- At least one first cold volume (2) which has a cooled water and air therein,
- At least one first vortex heat separator (3) which separates the air going inside into two as cold and hot,
- At least one second cold volume (5) which has a cooled water and air therein,
- At least one second vortex heat separator (6) which separates the air going inside into two as cold and hot
- At least one pump (7) which pumps cold liquid into the first volume (2) in order to create pressure difference between two volumes (2), (5),
- the inventive cascade cold water generation method (100) comprises the steps of passing the pressurized air through the first cold volume (101), separating the air passed through the first cold volume into two as hot and cold air by expanding in the first vortex heat separator (vortex tube) (102),
- step 105 the cold air which goes out of the second cold volume going to the air pressure booster by combining with the hot air going out of the second vortex heat separator and going back to step 105 (107).
- the pressurized air inlet is subjected to pre-cooling by being passed through the first cold volume (2) in which the cooled liquid and cooled air cooled by the vehicle system is present, it is expanded to a pressure value above ambient pressure in the first vortex heat separator (3) (vortex tube) and it is separated as hot and cold air.
- the air going out of the first cold volume (2) is combined with the air which goes out of the second cold volume (5) and the pressure of which is increased with the air pressure booster (4), and enters into the second vortex heat separator (6) in the same flow rate with the first vortex heat separator (3), and it is separated into two as hot and cold. Since the air cooled in the first cold volume (2) and the hot air going out of the second vortex heat separator (6) are preheated, they are approximately in level of ambient temperature.
- the cold air going out of the second cold volume (5) and the hot air going out of the second vortex heat separator (6) are combined and their pressure is increased in the pressure booster (4), and combined with the air going out of the second cold volume (2), and given to the second vortex heat separator (6) in this way.
- the air pressure booster (4) uses hot air going out of the first vortex heat separator (3) as drive air. In this way, twice as much air as the previous technique is circulated in the system.
- the hot liquid in the second cold volume (5) is pumped to the first cold volume (2) via a pump (7), and the pressure difference between two volumes (2), (5) is formed.
- the system (8) through which the cold water is desired to be circulated is connected between the first cold volume (2) and the second cold volume (5), and thus the volume (2,) (5), pressure is balanced with reverse flow.
- the pressure between two volumes (2), (5) is provided manually or electrically with the pressure decrease valve (9).
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR201408310 | 2014-07-15 | ||
PCT/TR2015/050036 WO2016010504A1 (en) | 2014-07-15 | 2015-07-15 | Cascade cold water generation system and method |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3169945A1 true EP3169945A1 (en) | 2017-05-24 |
Family
ID=54106421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15763432.0A Withdrawn EP3169945A1 (en) | 2014-07-15 | 2015-07-15 | Cascade cold water generation system and method |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3169945A1 (en) |
WO (1) | WO2016010504A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3775988A (en) * | 1969-05-23 | 1973-12-04 | L Fekete | Condensate withdrawal from vortex tube in gas liquification circuit |
US4333017A (en) | 1980-10-20 | 1982-06-01 | Connell John J O | Method and apparatus for closed loop vortex operation |
US6293108B1 (en) | 2000-06-30 | 2001-09-25 | Vortex Aircon | Regenerative refrigeration system with mixed refrigerants |
US8402773B2 (en) | 2008-03-21 | 2013-03-26 | Illinois Tool Works | Two-stage cooling system |
-
2015
- 2015-07-15 EP EP15763432.0A patent/EP3169945A1/en not_active Withdrawn
- 2015-07-15 WO PCT/TR2015/050036 patent/WO2016010504A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2016010504A1 (en) | 2016-01-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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STAA | Information on the status of an ep patent application or granted ep patent |
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17P | Request for examination filed |
Effective date: 20170110 |
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AK | Designated contracting states |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20200623 |