دورية أكاديمية
Heat Transfer Performance of a Novel Microchannel Embedded with Connected Grooves
| العنوان: | Heat Transfer Performance of a Novel Microchannel Embedded with Connected Grooves |
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| المؤلفون: | Ding Yuan, Wei Zhou, Ting Fu, Qingyu Dong |
| المصدر: | Chinese Journal of Mechanical Engineering, Vol 34, Iss 1, Pp 1-11 (2021) |
| بيانات النشر: | SpringerOpen, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Ocean engineering LCC:Mechanical engineering and machinery |
| مصطلحات موضوعية: | Microchannel, Connected grooves, Heat transfer enhancement, Performance evaluation, Ocean engineering, TC1501-1800, Mechanical engineering and machinery, TJ1-1570 |
| الوصف: | Abstract To improve the heat transfer performance of microchannels, a novel microchannel embedded with connected grooves crossing two sidewalls and the bottom surface (type A) was designed. A comparative study of heat transfer was conducted regarding the performances of type A microchannels, microchannels embedded with grooves on their bottom (including types B and C), or on the sidewalls (type D) as well as smooth rectangular microchannels (type E) via a three-dimensional numerical simulation and experimental validation (at Reynolds numbers from 118 to 430). Numerical results suggested that the average Nusselt number of types A, B, C, and D microchannels were 106, 73.4, 50.1, and 12.6% higher than that of type E microchannel, respectively. The smallest synergy angle β and entropy generation number N s,a were determined for type A microchannels based on field synergy and nondimensional entropy analysis, which indicated that type A exhibited the best heat transfer performance. Numerical flow analysis indicated that connected grooves induced fluid to flow along two different temperature gradients, which contributed to enhanced heat transfer performance. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1000-9345 2192-8258 |
| العلاقة: | https://doaj.org/toc/1000-9345Test; https://doaj.org/toc/2192-8258Test |
| DOI: | 10.1186/s10033-021-00632-w |
| الوصول الحر: | https://doaj.org/article/2e2648d98a99448b835bafe76a381b94Test |
| رقم الانضمام: | edsdoj.2e2648d98a99448b835bafe76a381b94 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 10009345 21928258 |
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| DOI: | 10.1186/s10033-021-00632-w |