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<table cellpadding="3" cellspacing="0" width="100%" class="forumline"> <thead> <caption><table border="0" cellspacing="0" cellpadding="0" width="100%" class="forumheader"> <tr> <td align="left" valign="bottom" width="25"><img src="http://picsrv.fora.pl/AcidTechTiger/images/hdr_left.gif" width="25" height="27" alt="" /></td> <td align="center" class="forumheader-mid">Topic review</td> <td align="right" valign="bottom" width="25"><img src="http://picsrv.fora.pl/AcidTechTiger/images/hdr_right.gif" width="25" height="27" alt="" /></td> </tr></table></caption> </thead> <tbody> <tr> <th class="thCornerL" width="22%" height="26">Author</th> <th class="thCornerR">Message</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>Googlelovqj</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/AcidTechTiger/images/post_old.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Posted: Tue 16:30, 24 May 2011<span class="gen"> </span> Post subject: fred perry italia Twisted flat tube condenser heat</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Twisted flat tube condenser heat transfer and fouling characteristics of experimental study <br /> <br /> <br />er knock VS. ReasexperimenteginningRe ◇ 1 group 2 group port flat tube flat tube flat tube group △ 3 Figure 8 to determine parameters of call-in dirt under the curve with Re Fig. 8Curvesofdeterminantparameter knock VS. Rein ~ uHng can see the trial began, the tubes are clean and dirt-free state, the twisted flat tube heat exchanger to determine parameters, 7 decreases with increasing Re, indicating that as the Re increases, twisted flat tube heat exchanger combined effect of enhanced heat transfer deterioration. When Re 22000 when r /> l, 2 pipe in Re> 12000 when r /> l, 3 pipe in Re> 4000 when the r /> l. Re is the scope of the twisted flat tube corresponding to each test the best work area, in this work area, the use of twisted flat tube as a heat exchange tube has a high application value. 3 Conclusions 1) The twisted flat tube with helical flow in the large Re can significantly increase the spin-off of the dirt wall on the role in the strengthening effect of Re small detachment is not obvious. 2) state in the absence of dirt, Re 22000, Re> 12000, Re> 4000. References [1】 Gu D algae, God, Eason, MA Chongfang, et al. Heat transfer [M】. Beijing: Science Press ,1990:139-143. [2】 SK,<a href="http://www.christianlouboutinskodk.com" target="_blank">christian louboutin københavn</a>, Xia Qing. Flat tube heat exchanger spiral heat transfer and pressure drop performance [J]. Chemical Industry and Engineering, l995.46 (5): 601 ~ 607. [3】 ButterworthDavid. DesignandApplicationofTwistedTubeExchanger [C】. Proc. ofAdvancesinIndustrialHeatTransferConference. Birmingham. 1996.87 - 95. [4】 Zhang Xingxiang, Zhi-Fu Sang. Twisted flat tube heat transfer and pressure drop performance of simulation [J]. Chemical Machinery, 2006,<a href="http://www.edhardysdanmark.com" target="_blank">ed hardy tøj</a>,33 (1) :24-28. [5】 Kenny Wong, Deng first and, Wang Jun Yang, et al. Spiral elliptical flat tube heat transfer [J]. Petrochemical equipment, 2003,32 (3) :1-4. [6】 Meng, Li Zhixin, Guo, et al. Distorted elliptical spiral tube laminar heat transfer and flow resistance characteristics of simulation [J】, Engineering Thermophysics, 2002,<a href="http://www.abercrombiefrances.com" target="_blank">magasin abercrombie</a>,23 (6) :117-120. [7】 Yang Li, Li Zhixin. Twisted elliptic tube Numerical Study of Laminar Heat Transfer [J】 l Engineering Mechanics, 2003,20 (5) :144-148. [8】 ButterworthDavid. Insight: ATwistintheTale [J】. ChemicalEngineer ,1997,<a href="http://www.ralphlauren-danmark.com" target="_blank">ralph lauren outlet</a>,9:21-24. [9】 Liang Longhu. Spiral flat tube heat exchanger performance and industrial application [J】. Refining the design, 2001,31 (<img src="http://picsrv.fora.pl/images/smiles/icon_cool.gif" alt="Cool" border="0" /> :28-33. [10】 DQKernandRESeaton. SurfaceFouling: HowtoLimit [J], Br. Chem. Eng. 1959,55 (6) :71-73. [11】 Yang Shiming,<a href="http://www.fredperry-outlet.com" target="_blank">fred perry italia</a>, Tao Wen-Quan. Heat Transfer [M】. Third Edition. Higher Education Press ,1998:338-340. <br /> <br />相关的主题文章： <br /> <br /> <br /> <a href="http://bwpc.org/cpg133/displayimage.php?pid=415&message_id=b8b7d644a26dce151345cf81793bdc91&message_icon=info#cpgMessageBlock" target="_blank">Technology into the market for Packaging Industry Development (1993 Summary ) _2210</a> <br /> <br /> <a href="http://googlelovuc.zyz.zsnet.com/archives/2011/2036933.html" target="_blank">christian louboutin shoes Photoshop CS2 RAW format</a> <br /> <br /> <a href="http://www.himandy.net/displayimage.php?pos=-231" target="_blank">Start building your second-hand camera, single lens reflex camera system _1386</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" class="spaceRow"><img src="http://picsrv.fora.pl/AcidTechTiger/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </tbody> </table>
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