ES8200765A1 - Boiling Surface for Heat Exchangers - Google Patents
Boiling Surface for Heat ExchangersInfo
- Publication number
- ES8200765A1 ES8200765A1 ES494685A ES494685A ES8200765A1 ES 8200765 A1 ES8200765 A1 ES 8200765A1 ES 494685 A ES494685 A ES 494685A ES 494685 A ES494685 A ES 494685A ES 8200765 A1 ES8200765 A1 ES 8200765A1
- Authority
- ES
- Spain
- Prior art keywords
- layer
- metal
- boiling surface
- particles
- heat exchangers
- 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.)
- Expired
Links
- 238000009835 boiling Methods 0.000 title abstract 3
- 239000007789 gas Substances 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 239000002923 metal particle Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000000112 cooling gas Substances 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
- F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention provides a boiling surface for heat exchangers comprising on a metal base a metal layer applied thereto, in which the layer comprises individual partly- cohering metal particles of various shapes, the layer is substantially free from continuous capillaries and closed pores, and the depth of the voids left between individual metal particles and open towards the boiling surface is on average more than 40% of the thickness of the layer and the thickness of the layer is from 30 to 300 mu m as measured over the highest protuberance. The invention also provides a process for the preparation of such a metal layer in which the particles are applied to the metal base by means of a powder flame spray technique in which the metal particles are injected into a gas flow heated by combustion of two gases and cooled and accelerated by means of a cooling gas, the mass balance of all the component flows responsible for such gas flow having a stoichiometric ratio of combustible gas and oxygen.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2936406A DE2936406C2 (en) | 1979-09-08 | 1979-09-08 | Boiling surface for heat exchangers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES8200765A1 true ES8200765A1 (en) | 1981-10-16 |
| ES494685A0 ES494685A0 (en) | 1981-10-16 |
Family
ID=6080420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES494685A Granted ES494685A0 (en) | 1979-09-08 | 1980-09-01 | PROCEDURE TO IMPROVE THE BOILING SURFACE IN THERMAL RECOVERIES |
Country Status (12)
| Country | Link |
|---|---|
| AR (1) | AR220863A1 (en) |
| AT (1) | AT366493B (en) |
| BE (1) | BE885100A (en) |
| BR (1) | BR8005602A (en) |
| CH (1) | CH648651A5 (en) |
| DE (1) | DE2936406C2 (en) |
| ES (1) | ES494685A0 (en) |
| FR (1) | FR2465180B1 (en) |
| GB (1) | GB2062207B (en) |
| IT (1) | IT1132642B (en) |
| NL (1) | NL8004997A (en) |
| ZA (1) | ZA805109B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040251008A1 (en) | 2003-05-30 | 2004-12-16 | O'neill Patrick S. | Method for making brazed heat exchanger and apparatus |
| US8991480B2 (en) | 2010-12-15 | 2015-03-31 | Uop Llc | Fabrication method for making brazed heat exchanger with enhanced parting sheets |
| WO2022066625A1 (en) * | 2020-09-25 | 2022-03-31 | Cleanpart Group Gmbh | Globular thermal spray method and air separation unit evaporator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3384154A (en) * | 1956-08-30 | 1968-05-21 | Union Carbide Corp | Heat exchange system |
| DE2218489A1 (en) * | 1972-04-17 | 1973-10-31 | Wmf Wuerttemberg Metallwaren | Evaporator pipe mfr - with an outer, metal coating of fibres bonded to pipe surface |
| US3990862A (en) * | 1975-01-31 | 1976-11-09 | The Gates Rubber Company | Liquid heat exchanger interface and method |
| US4154293A (en) * | 1976-09-09 | 1979-05-15 | Union Carbide Corporation | Enhanced tube inner surface heat transfer device and method |
| US4154294A (en) * | 1976-09-09 | 1979-05-15 | Union Carbide Corporation | Enhanced condensation heat transfer device and method |
-
1979
- 1979-09-08 DE DE2936406A patent/DE2936406C2/en not_active Expired
- 1979-10-19 FR FR7925971A patent/FR2465180B1/en not_active Expired
-
1980
- 1980-07-25 CH CH5695/80A patent/CH648651A5/en not_active IP Right Cessation
- 1980-08-20 ZA ZA00805109A patent/ZA805109B/en unknown
- 1980-08-25 AT AT0428580A patent/AT366493B/en not_active IP Right Cessation
- 1980-08-28 AR AR282336A patent/AR220863A1/en active
- 1980-09-01 ES ES494685A patent/ES494685A0/en active Granted
- 1980-09-03 GB GB8028473A patent/GB2062207B/en not_active Expired
- 1980-09-03 BR BR8005602A patent/BR8005602A/en unknown
- 1980-09-03 NL NL8004997A patent/NL8004997A/en not_active Application Discontinuation
- 1980-09-04 IT IT24448/80A patent/IT1132642B/en active
- 1980-09-05 BE BE0/201995A patent/BE885100A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT8024448A0 (en) | 1980-09-04 |
| BE885100A (en) | 1980-12-31 |
| DE2936406A1 (en) | 1981-03-12 |
| ATA428580A (en) | 1981-08-15 |
| NL8004997A (en) | 1981-03-10 |
| DE2936406C2 (en) | 1982-12-02 |
| GB2062207A (en) | 1981-05-20 |
| ZA805109B (en) | 1981-08-26 |
| BR8005602A (en) | 1981-03-17 |
| FR2465180B1 (en) | 1985-12-20 |
| AR220863A1 (en) | 1980-11-28 |
| AT366493B (en) | 1982-04-13 |
| FR2465180A1 (en) | 1981-03-20 |
| CH648651A5 (en) | 1985-03-29 |
| ES494685A0 (en) | 1981-10-16 |
| IT1132642B (en) | 1986-07-02 |
| GB2062207B (en) | 1983-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2127473T3 (en) | PROCEDURE FOR THE MANUFACTURE OF AN AGENT TO WELD ALUMINUM ALLOYS CONTAINING A FLOOD. | |
| ES8200765A1 (en) | Boiling Surface for Heat Exchangers | |
| JPS558411A (en) | Nitriding method for aluminum or aluminum alloy in molten state | |
| Liu et al. | Aluminum agglomeration in AP/RDX/Al/HTPB propellant combustion | |
| CA2136660A1 (en) | A method and powder mixture for repairing oxide based refractory bodies | |
| JPS5681668A (en) | Coating method for heat resistant alloy with aluminum | |
| JPS5732347A (en) | Alloy for coating | |
| JPS55113872A (en) | Ground layer treating method for oxide dispersing type heat resistant coating | |
| JPS5421622A (en) | Burner material used cooking appliances | |
| JPS5582768A (en) | Aluminum diffusion-coating method | |
| SU804207A1 (en) | Comrosition for impregnating porous powder blanks | |
| SU1353725A1 (en) | Method of obtaining controllable atmosphere | |
| JPS5372914A (en) | Internal combustion engine | |
| JPS5713167A (en) | Coating method for heat resistant alloy | |
| SU544639A1 (en) | Fireproof padded weight | |
| JPS51136521A (en) | Ni-cr-w alloy | |
| JPS55130390A (en) | Production of clad steel plate | |
| GB572703A (en) | Improvements in or relating to metallic coatings on iron and steel | |
| JPS52105589A (en) | Catalyst | |
| Chen et al. | Soft Nitriding of Steels in N sub 2--Water Gas--NH sub 3 Atmospheres | |
| JPS5538907A (en) | Surface-treating method for aluminum or aluminum alloy | |
| SU1634726A1 (en) | Process for chemical and thermal treatment of steel articles | |
| SU1129268A1 (en) | Composition for borosiliconizing steel products | |
| JPS54162636A (en) | Surface treating method for heat resistant alloy | |
| JPS57207141A (en) | Surface treating material for heat exchanger |