A STUDY ON HEAT TRANSFER AND PRESSURE DROP CHARACTERISTICS FOR SINGLE PHASE FLOW IN RECTANGULAR MICROCHANNEL

被引：0

作者：

Mun, J. H. ^{[1
]}

Kim, S. C. ^{[2
]}

Kim, Y. L. ^{[2
]}

Jeon, D. S. ^{[2
]}

机构：

[1] Univ Sci & Technol, Clean Proc & Syst Engn, 176 Gajungro, Daegeon 305350, South Korea

[2] Korea Inst Ind Technol, Energy Syst Technol Ctr, Cheonan Si 330825, Chungcheongnam, South Korea

来源：

23RD IIR INTERNATIONAL CONGRESS OF REFRIGERATION | 2011年 / 23卷

关键词：

WATER;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An experimental investigation has been performed on the convective heat transfer characteristics for a single phase laminar flow in microchannels. The test sample used in this experiment contains 20 rectangular microchannels which have hydraulic diameter of 700 mu m. Distilled water was used as a working fluid. The experiments were conducted with the range of Reynolds number from 400 to 800, heat flux ranging from 35 to 85 kW/m(2) and the inlet fluid temperature of 20 degrees C. As experimental results, it was found that thermal entry length is about 10 similar to 40 mm and convective heat transfer coefficient has values in the range of 4.6 similar to 6.4 kW/m(2)degrees C except for thermal entrance region. A numerical analysis has been also carried out on the convective heat transfer and pressure drop in a microchannel. As the results of numerical analysis, correlations were suggested for the friction factor and Nusselt number as functions of Reynolds number in the fully developed region.

引用

页码：303 / +

页数：2

共 50 条

[1] Single phase flow pressure drop and heat transfer in rectangular metallic microchannels
Sahar, Amirah M.
Oezdemir, Mehmed R.
Fayyadh, Ekhlas M.
Wissink, Jan
Mahmoud, Mohamed M.
Karayiannis, Tassos G.
[J]. APPLIED THERMAL ENGINEERING, 2016, 93 : 1324 - 1336
[2] Pressure drop and heat transfer characteristics for single-phase developing flow of water in rectangular microchannels
Mirmanto
Kenning, D. B. R.
Lewis, J. S.
Karayiannis, T. G.
[J]. 6TH EUROPEAN THERMAL SCIENCES CONFERENCE (EUROTHERM 2012), 2012, 395
[3] Study on heat transfer and pressure drop characteristics for nanofluids in microchannel heat exchangers
Lalagi, Gururaj
Nagaraj, P. B.
Talugeri, Vinayak
Bidari, Mallikarjuna Veerabhadrappa
[J]. PHYSICS OF FLUIDS, 2023, 35 (10)
[4] Study on Heat Transfer Characteristics for Single-phase Flow in Rectangular Microchannels
Mun, Ji Hyun
Kim, Seon-Chang
[J]. TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B, 2011, 35 (09) : 891 - 896
[5] Pressure drop, boiling heat transfer and flow patterns during flow boiling in a single microchannel
Huh, Cheol
Kim, Moo Hwan .
[J]. HEAT TRANSFER ENGINEERING, 2007, 28 (8-9) : 730 - 737
[6] Two-phase pressure drop and boiling heat transfer in a single horizontal microchannel
Huh, Cheol
Kim, Moo Hwan
[J]. Proceedings of the 4th International Conference on Nanochannels, Microchannnels, and Minichannels, Pts A and B, 2006, : 1097 - 1104
[7] Heat transfer characteristics of magnetohydrodynamic electroosmotic flow in a rectangular microchannel
Yang, Chunhong
Jian, Yongjun
Xie, Zhiyong
Li, Fengqin
[J]. EUROPEAN JOURNAL OF MECHANICS B-FLUIDS, 2019, 74 : 180 - 190
[8] Study of Wettability Effect on Pressure Drop and Flow Pattern of Two-Phase Flow in Rectangular Microchannel
Choi, Chi-woong
Yu, Dong In
Kim, Moo Hwan
[J]. TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B, 2009, 33 (12) : 939 - 946
[9] Pressure drop and point mass transfer in a rectangular microchannel
Ergu, O. Barlay
Sara, O. N.
Yapici, S.
Arzutug, M. E.
[J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2009, 36 (06) : 618 - 623
[10] A comparative study of experimental flow boiling heat transfer and pressure drop characteristics in porous-wall microchannel heat sink
Jia, Y. T.
Xia, G. D.
Zong, L. X.
Ma, D. D.
Tang, Y. X.
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2018, 127 : 818 - 833

← 1 2 3 4 5 →