JPS57131992A - Nucleate boiling type heat transfer pipe - Google Patents
Nucleate boiling type heat transfer pipeInfo
- Publication number
- JPS57131992A JPS57131992A JP21177281A JP21177281A JPS57131992A JP S57131992 A JPS57131992 A JP S57131992A JP 21177281 A JP21177281 A JP 21177281A JP 21177281 A JP21177281 A JP 21177281A JP S57131992 A JPS57131992 A JP S57131992A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cavities
- nucleate boiling
- outside
- openings
- 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.)
- Granted
Links
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
Abstract
PURPOSE:To improve nucleate boiling performance on the outside of a pipe, by providing a surface structure for promoting nucleate boiling also in the axial direction of the pipe as well as the circumferential direction of the pipe. CONSTITUTION:Circumferential cavities 1 extending helically aroung the circumference of a pipe is formed under the outer surface of the pipe at desired pitches in the axial direction of the pipe. Similarly, small axial cavities 3 are also formed under the outer surface of the pipe. Openings 2 formed discontinuously at the same pitches as the cavities 3, which are formed substantially continuously for communicating the cavities 1 to the outside, are shaped in irregular forms having many corrugations and ruggedness, and the maximum average width of the openings 2 is selected to be equal to or smaller than 0.13m/m. Further, it is preferable to select the maximum average width of the small axial cavities 3 and narrow interstices 4 communicated to the outside also to be equal to or smaller than 0.13m/m. Since, with such an arrangement, the configuration and surface conditions of the pipe are made preferable for forming many nuclei of bubbles, nucleate boiling can be promoted effectively markedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21177281A JPS57131992A (en) | 1981-12-24 | 1981-12-24 | Nucleate boiling type heat transfer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21177281A JPS57131992A (en) | 1981-12-24 | 1981-12-24 | Nucleate boiling type heat transfer pipe |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14371977A Division JPS5475658A (en) | 1977-02-25 | 1977-11-30 | Boiling type heat transfer tube and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57131992A true JPS57131992A (en) | 1982-08-16 |
| JPS642878B2 JPS642878B2 (en) | 1989-01-18 |
Family
ID=16611330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21177281A Granted JPS57131992A (en) | 1981-12-24 | 1981-12-24 | Nucleate boiling type heat transfer pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57131992A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5938597A (en) * | 1982-08-25 | 1984-03-02 | Matsushita Electric Ind Co Ltd | Heat transmitting tube for boiling medium |
| JPS63172892A (en) * | 1987-01-12 | 1988-07-16 | Sumitomo Light Metal Ind Ltd | Heat transfer pipe for evaporation and its manufacture |
| JPH01261992A (en) * | 1988-04-13 | 1989-10-18 | Matsushita Electric Ind Co Ltd | Title display remote control system |
| EP0495453A1 (en) | 1991-01-14 | 1992-07-22 | The Furukawa Electric Co., Ltd. | Heat transmission tube |
| JP2017020736A (en) * | 2015-07-13 | 2017-01-26 | 株式会社コベルコ マテリアル銅管 | Ebullition type heat transfer pipe |
| JP2020101362A (en) * | 2020-03-30 | 2020-07-02 | 株式会社コベルコ マテリアル銅管 | Ebullition type heat transfer pipe |
-
1981
- 1981-12-24 JP JP21177281A patent/JPS57131992A/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5938597A (en) * | 1982-08-25 | 1984-03-02 | Matsushita Electric Ind Co Ltd | Heat transmitting tube for boiling medium |
| JPS63172892A (en) * | 1987-01-12 | 1988-07-16 | Sumitomo Light Metal Ind Ltd | Heat transfer pipe for evaporation and its manufacture |
| JPH0454876B2 (en) * | 1987-01-12 | 1992-09-01 | Sumitomo Light Metal Ind | |
| JPH01261992A (en) * | 1988-04-13 | 1989-10-18 | Matsushita Electric Ind Co Ltd | Title display remote control system |
| EP0495453A1 (en) | 1991-01-14 | 1992-07-22 | The Furukawa Electric Co., Ltd. | Heat transmission tube |
| US5186252A (en) * | 1991-01-14 | 1993-02-16 | Furukawa Electric Co., Ltd. | Heat transmission tube |
| JP2017020736A (en) * | 2015-07-13 | 2017-01-26 | 株式会社コベルコ マテリアル銅管 | Ebullition type heat transfer pipe |
| JP2020101362A (en) * | 2020-03-30 | 2020-07-02 | 株式会社コベルコ マテリアル銅管 | Ebullition type heat transfer pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS642878B2 (en) | 1989-01-18 |
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