ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

巻:
巻 50, 2019 巻 49, 2018 巻 48, 2017 巻 47, 2016 巻 46, 2015 巻 45, 2014 巻 44, 2013 巻 43, 2012 巻 42, 2011 巻 41, 2010 巻 40, 2009 巻 39, 2008 巻 38, 2007 巻 37, 2006 巻 36, 2005 巻 35, 2004 巻 34, 2003 巻 33, 2002 巻 32, 2001 巻 31, 2000 巻 30, 1999 巻 29, 1998 巻 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018025111
pages 1721-1744

USAGE OF A DIATOMITE-CONTAINING NANOFLUID AS THE WORKING FLUID IN A WICKLESS LOOP HEAT PIPE: EXPERIMENTAL AND NUMERICAL STUDY

Adnan Sözen
Gazi University, Technology Faculty, Energy Systems Engineering, 06500, Ankara, Turkey
Erdem Çiftçi
Gazi University
Selçuk Keçel
Gazi University, Faculty of Architecture, Department of Industrial Product Design, Maltepe, Ankara, Turkey
Metin Gürü
Gazi University, Engineering Faculty, Chemical Engineering, 06500, Ankara, Turkey
Halil Ibrahim Variyenli
Gazi University, Technology Faculty, Energy Systems Engineering, 06500, Ankara, Turkey
Ugur Karakaya
Gazi University, Engineering Faculty, Chemical Engineering Department, Maltepe, Ankara, Turkey

要約

In this paper, thermal performance of the diatomite-deionized water nanofluid usage as the working fluid in a wickless loop heat pipe at varying operating conditions was experimentally and numerically investigated. A straight copper tube with an inner diameter of 13 mm, which is of 1 mm wall thickness and 1 m in-length, was used as the thermosyphon in the experimental work. The pipe was charged with deionized water and diatomite-based nanofluid respectively, by one-third of the overall volume of the heat pipe. Diatomite has high absorption capability and thus it can be considerably absorbed by the deionized water. Herewith, the disadvantages of the nanofluids, flocculation and sedimentation, are remarkably annihilated. Moreover, by using a surface-active agent, Triton X-100, these disadvantages were tried to be removed. The experiments were conducted for varying heat loads in evaporator section and cooling water mass flow rates in condenser section of the heat pipe in order to determine the operating parameters under maximum efficiency conditions of the heat pipe. Using experimental findings such performance parameters as efficiency, thermal conductivity, improvement rates in heat transfer were determined and then numerical analysis were performed. The maximum efficiency and the improvement in thermal resistance of the heat pipe when it is filled up with diatomite-based nanofluid in place of deionized water were obtained from the recurrent tests as 14.57%and 43.4%, respectively. Consequently, the experimental and numerical findings were compared to each other and it is pointed out that they are in a good agreement.


Articles with similar content:

NUMERICAL SIMULATION OF HEAT TRANSFER ENHANCEMENT FOR COPPER FOAM HEAT SINK IN ELECTRONIC DEVICES USING WATER BASED BN NANOFLUIDS
International Heat Transfer Conference 16, Vol.10, 2018, issue
M. E. Navarro, Yulong Ding, M. Kuball, Gan Zhang, J.W. Pomeroy, C. Yuan, H. Cao
DISCUSSION ON DIFFERENCE IN HEAT TRANSPORT RATE BETWEEN MERCURY HEAT PIPES WITH AND WITHOUT SCREEN MESH WICK
Energy and Environment, 1995, Vol.0, 1995, issue
Wei Wu, Katsuya Nagata, Tadashi Yamamoto, Masafumi Katsuta, Akira Hirano , Katsushiko Kadoguchi, Shinya Kamiyama
Effects of Nanoparticle Parameters on Thermal Performance of the Evaporator in a Small Capillary Pumped Loop Using Nanofluid
Journal of Enhanced Heat Transfer, Vol.17, 2010, issue 4
Zhenhua Liu, Lun-Chun Lv
THERMAL PERFORMANCE OF A HIGH-TEMPERATURE SOLAR ABSORBER EMBEDDED WITH LIQUID METAL HEAT PIPE
Heat Pipe Science and Technology, An International Journal, Vol.5, 2014, issue 1-4
Sang Min Kim, Joon Hong Boo, Jae Hyuk Shin, Seung Shin Yi
A TWO-PHASE REVERSE THERMOSYPHON WITH TWO WORK AGENTS
Heat Pipe Science and Technology, An International Journal, Vol.2, 2011, issue 1-4
Michal Duda, Jurij Dobrianski, Daniel Chludzinski