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| 1 | 强制对流条件下不同传热流体对含相变材料柱形容器放热性能的影响显示文摘本文采用数值模拟方法研究了强制对流条件下不同传热流体对含相变材料柱形容器的放热性能的影响。以空气、氢、水和含氧化铝颗粒的纳米流体作为传热流体,同时考虑了含相变材料(PCM)区域的结构变化,采用有限元法进行求解。研究了不同传热流体类型、雷诺数(100~300)和含PCM区域结构变化(h_(x)在0.01d_(1)~0.65d_(1),h_(y)在0.1h_(1)~0.4h_(1))下不同相的换热动力学特征。研究发现,换热流体类型对放热时间影响较大,以空气为换热流体时相变完成时间比以空气为换热流体时的长10倍以上,而以纳米流体为换热流体时的时间最短。当含PCM区域减小时,放热时间缩短。含PCM区域的结构导致涡流的形成,这使在内筒的半径和高度最大处的性能下降。当内筒半径从h_(x)=0.35d_(1)增加到h_(x)=0.45d_(1)时,放热时间延长约12%。在不同雷诺数下,PCM的温度和液体组分的动态特性均受雷诺数的影响,与最小雷诺数相比,最大雷诺数下的PCM的放电时间缩短了48%左右。 | SELİMEFENDİGİL Fatih ŞİRİN Ceylin ÖZTOP Hakan F | 2021 | Journal of Central South University2021，28，11： | 2 |
| 2 | Laminar natural convection heat transfer in a shed roof with or without eave for summer season显示文摘 | Oztop Hakan F Yasin Varol Ahmet Koca | 2007 | Applied Thermal Engineering2007，27，： | 1 |
| 3 | Filitating transthoracic cardioversion of arial fibriliation with Ibutilide pretreatment显示文摘 | Hakan O Joseph J S Gregory F M | 1999 | The New England Journal of Medcini1999，24，1： | 1 |
| 4 | The flow rate of people during train evacuation in rail tunnels: Effects of different train exit configurations 显示文摘 | Karl F Daniel N Hakan F | 2014 | Safety Science2014，62，： | 1 |
| 5 | Risk analysis and fire safety engineering显示文摘 | Hakan F | 1998 | Fire Safety Journal1998，31，： | 1 |
| 6 | Noncovalent self-assembly of silver and gold nanocrystal aggregates in solution 显示文摘 | STEPHEN F HAKAN R NAGARAJA R S | 2002 | Chem Mater2002，14，： | 1 |
| 7 | Cerebellar liponeurocytoma/lipidized medulloblastoma显示文摘 | Fügen Vardar Aker Selvinaz ?zkara Pinar Eren ?nder Peker Serdar Arma?an Tayfun Hakan | 2005 | Journal of Neuro - Oncology2005，，1： | 1 |
| 8 | Risk Analysis and Fire Safety Engineering显示文摘 | Hakan F | 1998 | Fire safety Journal1998，31，： | 1 |
| 9 | Characteristics of Atrial Tachycardia due to Small versus Large Reentrant Circuits after Ablation of Persistent Atrial Fibrillation显示文摘 | Miki Yokokawa Rakesh Latchamsetty Hamid Ghanbari Diego Belardi Akash Makkar Brett Roberts Wouter Saint-Phard Mohamad Sinno Thomas Carrigan Robert Kennedy Arisara Suwanagool Eric Good Thomas Crawford Krit Jongnarangsin Frank Pelosi Frank Bogun Hakan Oral F | 2012 | Heart Rhythm2012，，： | 1 |
| 10 | Fire alarm in a public building: how do people e- valuate information and choose an evacuation exit显示文摘 | Lars B Hakan F | 1999 | Fire and Ma- terials1999，23，： | 1 |
| 11 | Effect of nanofluid variable properties on natural convection in en- closures显示文摘 | EIYAD A N ZIYAD M HAKAN F O | 2010 | International Journal of Thermal Sciences2010，49，3： | 1 |
| 12 | Natural convection in nanofluids: Are the thermophoresis and Brownian motion effects significant in nanofluid heat transfer enhancement显示文摘 | ZOUBIDA H EIYAD A-N HAKAN F | 2012 | International Journal of Ther- mal Sciences2012，57，： | 1 |
| 13 | Influence of UV-B radiation and Cd^2+ on chlorophyll fluorescence, growth and nutrient content in Brassea napus显示文摘 | Helene Larsson E Janet F Bornman Hakan Asp | 1998 | Journal of Experimental Botany1998，49，323： | 1 |
| 14 | Safety,risk,reliability-trends in engineering显示文摘 | Hakan F | 2001 | Malta:1ABSE2001，，1： | 1 |
| 15 | Numerical and experimental analysis of moisture transfer for convective drying of some products显示文摘 | Hakan F Oztop Ebru Kayak Akpina | 2008 | International Communications in Heat and Mass Transfer2008，35，2： | 1 |
| 16 | Tilt and decentration after primary and secondary transsclerally sutured posterior chamber intraocular lens implantation显示文摘 | Asmet D Hakan F Oner NK | | 0，，02： | 1 |
| 17 | Energy and exergy analysis of a latent heat storage system with phase change material for a solar collector显示文摘 | Kocaa Ahmet Oztopb Hakan F Koyun Tansel | 2008 | Renewable Energy2008，33，： | 1 |
| 18 | Tilt and decentration after primary and secondary transsclerally sutured posterior chamber intraocular lens implantation显示文摘 | Asmet D Hakan F Oner NK | 2001 | Cataract Refract Surg2001，27，2： | 1 |
| 19 | Thermal management of nanoliquid forced convective flow over heated blocks in channel by using double elliptic porous objects显示文摘Effects of using nanoliquid and double porous elliptic objects on the flow separation and convective heat transfer control for flow over multiple heated blocks in channel are numerically investigated by using finite element method.Spherical,brick,blade and cylindrical shaped alumina particles are used in water up to solid volume fraction of 2%.Impacts of Reynolds number(50≤Re≤500),permeability of the porous ellipses(10^(-5)≤D_(a1)≤5×10^(-2) and 10^(-5)≤D_(a2)≤5×10^(-2)),aspect ratio of the ellipses(0.25≤AR_(1)≤1.5,0.25≤AR_(2)≤1.5),distance between the ellipses(0.2H≤sx≤1.6H)and distance of the first ellipse from inlet(-H≤mx≤H)on the hydro-thermal performance are explored.The highest performance improvement is obtained by using the cylindrical shaped particles in the base heat transfer fluid at the highest solid volume fraction and the amount of heat transfer enhancement are 33%and 40.5%for hot blocks while negligible pressure drop is observed.Varying the aspect ratio of the ellipses in the perpendicular direction to the flow,up to 25%and 30%heat transfer increment are obtained for hot block with slight rise of pressure coefficient.However,when varying the horizontal location of the porous ellipses in the channel and permeability of them,there is considerable rise of pressure drop.Variation of the average heat transfer from the hot blocks with varying permeability of the ellipses are obtained as 32%and 25%.Successful hydro-thermal performance estimation results are achieved by using artificial neural networks with feed-forward network architecture of 1 hidden layer and 17 neurons. | Fatih Selimefendigil Hakan FÖztop | 2021 | Propulsion and Power Research2021，10，3： | 1 |
| 20 | Energy and energy analysis of a latent heat storage system with phase change material for a solar collector显示文摘 | Ahmet Koca Hakan F Oztop Tansel Koyun | 2008 | Renewable Energy2008，33，： | 1 |
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