Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Are the available boiling heat transfer coefficients suitable for silicon microchannel heat sinks? | |
| Gan, Yunhua2; Xu, Jinliang1; Wang, Shuangfeng3 | |
| 2008-06-01 | |
| Source Publication | MICROFLUIDICS AND NANOFLUIDICS
 |
| ISSN | 1613-4982 |
| Volume | 4Issue:6Pages:575-587 |
| Corresponding Author | xujl@ms.giec.ac.cn |
| Abstract | The typical MEMS fabrication of micro evaporators ensures the perfect smooth wall surface that is lack of nucleation sites, significantly decreasing the heat transfer coefficients compared with miniature evaporators fabricated using copper or stainless steel. In the present paper, we performed the boiling heat transfer experiment in silicon triangular microchannel heat sink over a wide parameter range for 102 runs. Acetone was used as the working fluid. The measured boiling heat transfer coefficients versus the local vapor mass qualities are compared with the classical Chen's correlation and other correlations for macro and miniature capillary tubes. It is found that most of these correlations significantly over-predict the measured heat transfer coefficients. New correlations are given. There are many reasons for such deviations. The major reason is coming from the perfect smooth silicon surface that lowers the heat transfer performances. New theory is recommended for the silicon microchannel heat sink that should be different from metallic capillary tubes. |
| Subtype | Article |
| Other Abstract | The typical MEMS fabrication of micro evaporators ensures the perfect smooth wall surface that is lack of nucleation sites, significantly decreasing the heat transfer coefficients compared with miniature evaporators fabricated using copper or stainless steel. In the present paper, we performed the boiling heat transfer experiment in silicon triangular microchannel heat sink over a wide parameter range for 102 runs. Acetone was used as the working fluid. The measured boiling heat transfer coefficients versus the local vapor mass qualities are compared with the classical Chen’s correlation and other correlations for macro and miniature capillary tubes. It is found that most of these correlations significantly over-predict the measured heat transfer coefficients. New correlations are given. There are many reasons for such deviations. The major reason is coming from the perfect smooth silicon surface that lowers the heat transfer performances. New theory is recommended for the silicon microchannel heat sink that should be different from metallic capillary tubes. |
| Keyword | Silicon Microchannel Flow Boiling Heat Transfer Coefficient Empirical Correlation |
| WOS Headings | Science & Technology ; Technology ; Physical Sciences |
| DOI | 10.1007/s10404-007-0215-y |
| WOS Subject Extended | Science & Technology - Other Topics ; Instruments & Instrumentation ; Physics |
| URL | 查看原文 |
| WOS Keyword | PRESSURE-DROP ; GENERAL CORRELATION ; FLOW ; TUBES ; ANNULI ; FLUX |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Nanoscience & Nanotechnology ; Instruments & Instrumentation ; Physics, Fluids & Plasmas |
| WOS ID | WOS:000255876900010 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/3430 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.Chinese Acad Sci, Micro Energy Syst Lab, Key Lab Renewable Energy & Gas Hydrate CAS, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.S China Univ Technol, Sch Elect Power, Guangzhou 510641, Peoples R China 3.S China Univ Technol, Sch Chem & Energy Engn, Guangzhou 510641, Peoples R China |
| Recommended Citation GB/T 7714 | Gan, Yunhua,Xu, Jinliang,Wang, Shuangfeng. Are the available boiling heat transfer coefficients suitable for silicon microchannel heat sinks?[J]. MICROFLUIDICS AND NANOFLUIDICS,2008,4(6):575-587. |
| APA | Gan, Yunhua,Xu, Jinliang,&Wang, Shuangfeng.(2008).Are the available boiling heat transfer coefficients suitable for silicon microchannel heat sinks?.MICROFLUIDICS AND NANOFLUIDICS,4(6),575-587. |
| MLA | Gan, Yunhua,et al."Are the available boiling heat transfer coefficients suitable for silicon microchannel heat sinks?".MICROFLUIDICS AND NANOFLUIDICS 4.6(2008):575-587. |
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