|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
内螺纹管内超临界水传热和阻力特性的数值研究
, PP. 24-30
Keywords: 内螺纹管,超临界流体,结构参数,传热特性,阻力特性
Abstract:
对超临界水在不同结构参数的竖直内螺纹管内的流动和传热特性进行数值模拟研究,重点分析了内螺纹管的螺旋升角、相对螺纹宽度和相对螺纹高度在不同质量流速和热流密度条件下对传热和阻力特性的影响规律。结果表明:内螺纹管的传热系数和阻力系数均随升角的减小而增加;相对螺纹宽度的变化对内螺纹管的传热和阻力特性几乎无影响;随着相对螺纹高度的增加,传热系数和阻力系数均增加。通过对内螺纹管的综合性能分析,结构参数对超临界流体传热和阻力特性的影响顺序依次为螺旋升角、螺纹高度、螺纹宽度。
| [1] | duffeyrb,pioroil.experimentalheattransferofsupercriticalcarbondioxideflowinginsidechannels(survey)[j].nuclearengineeringanddesign,2005,235(8):913�924.
|
| [2] | ghiaasiaanm.convectiveheatandmasstransfer[m].cambridge:cambridgeuniversitypress,2011.
|
| [3] | choudhuryd.introductiontotherenormalizationgroupmethodandturbulencemodeling[m].fluentincorporated,1993.
|
| [4] | 周旭,杨冬,肖峰,等.超临界循环流化床锅炉中等质量流速水冷壁流量分配及壁温计算[j].中国电机工程学报,2009,(26):13�18.zhouxu，yangdong，xiaofeng，eta1.massflowrateprofileandmetaltemperaturecalculationinwaterwallofansupercriticalcirculatingfluidizedbedboileratmediummassflowrate[j].proceedingsofthecsee,2009,(26):13�18.
|
| [5] | hes,kimw,jacksonj.acomputationalstudyofconvectiveheattransfertocarbondioxideatapressurejustabovethecriticalvalue[j].appliedthermalengineering,2008,28(13):1662�1675.
|
| [6] | 王建国.超临界锅炉水冷壁管低质量流速下的传热及阻力特性研究[d].西安:西安交通大学,2010.wangjianguo.heattransferandresistancecharacteristicswithlowmassflowratesforsupercriticalwaterwall[d].xi'an:xi'anjiaotonguniversity,2010.
|
| [7] | ackermannjw.pseudo�boilingheattransfertosupercriticalpressurewaterinsmoothandribbedtubes[j].journalofheattransfer,1970:490�498.
|
| [8] | 唐人虎,尹飞,陈听宽.超临界变压运行直流锅炉内螺纹管螺旋管圈水冷壁的传热特性研究[j].中国电机工程学报,2005,25(16):90�95.tangrenhu,yinfei,chentingkuan.aninvestigationonheattransfercharacteristicsofspiralwallwithinternalribinsupercriticalsliding�pressureoperationonce�throughboiler[j].proceedingsofthecsee,2005,25(16):90�95.
|
| [9] | 王为术,罗毓珊,陈听宽，等.超临界压力下倾斜上升内螺纹管传热特性的试验研究[j].动力工程,2005,25(6):790�793.wangweishu,luoyushan,chentingkuan,etal.experimentalstudyofheattransfercharacteristicsundersupercriticalpressureofupwardsinclinedrifledtubes[j].powerengineering,2005,25(6):790�793.
|
| [10] | pioroil,duffeyrb.experimentalheattransferinsupercriticalwaterflowinginsidechannels(survey)[j].nuclearengineeringanddesign,2005,235(22):2407�2430.
|
| [11] | pioroil,khartabilhf,duffeyrb.heattransfertosupercriticalfluidsflowinginchannels�empiricalcorrelations(survey)[j].nuclearengineeringanddesign,2004,230(1):69�91.
|
| [12] | kimsh,kimyi,baeyy,etal.numericalsimulationoftheverticalupwardflowofwaterinaheatedtubeatsupercriticalpressure[c]//proceedingsoficapp04,pittsburgh,pa,usa.2004:13�17.
|
| [13] | roelofsf.cfdanalysesofheattransfertosupercriticalwaterflowingverticallyupwardinatube[j].nrgrapport,2004,21353(04.60811).
|
| [14] | 徐峰,郭烈锦,毛宇飞，等.超临界压力下水在垂直加热管内传热特性的实验[j].西安交通大学学报,2005,39(5):468�471.xufeng,guoliejin,maoyufei,eta1.experimentalinvestigationtotheheattransfercharacteristicsofwaterinverticalpipesundersupercriticalpressure[j].journalofxi'anjiaotonguniversity,2005,39(5):468�471.
|
| [15] | 雷贤良,李会雄,于水清，等.超临界水在倾斜上升管内的非均匀传热特性数值模拟[j].计算物理,2010,27(2):217�227.leixianliang,lihuixiong,yushuiqing,eta1.numericalsimulationonheterogeneousheattransferinwateratsupercriticalpressuresininclinedupwardtubes[j].chinesejournalofcomputationalphysics,2010,27(2):217�227.
|
| [16] | 潘杰.超临界循环流化床锅炉低质量流速水冷壁传热及水动力研究[d].西安:西安交通大学,2011.panjie.heattransferandhydrodynamiccharacteristicswithlowmassflowratesforsupercriticalcfbboiler[d].xi'an:xi'anjiaotonguniversity,2011.
|
| [17] | yamagatak,nishikawak,hasegawas,etal.forcedconvectiveheattransfertosupercriticalwaterflowingintubes[j].internationaljournalofheatandmasstransfer,1972,15(12):2575�2593.
|
| [18] | 王为术,朱晓静,毕勤成，等.优化四头内螺纹管内汽�水两相流摩擦阻力的研究[j].核动力工程,2012,33(3):38�41.wangweishu，zhuxiaojing，biqincheng，eta1.studyonfrictionalpressuredropofsteam�watertwophaseflowinoptimizedfour�headintemal�fibbedtube[j].nuclearpowerengineering,2012,33(3):38�41.
|
| [19] | kolherw,kastnerw.heattransferandpressurelossonrifledtubes[c]//proceedingsofthe8thinternationalheattransferconference,sanfrancisco,1986:2861�2865.
|
| [20] | 潘杰,杨冬,董自春，等.亚临界及近临界压力区低质量流速光管的传热特性研究[j].高技术通讯,2012,22(2):217�223.panjie,yangdong,dongzichun,eta1.experimentalinvestigationonheattransfercharacteristicsofsmoothtubesatlowmassfluxundersubcriticalandnearcriticalpressure[j].chinesehightechnologyletters,2012,22(2):217�223.
|
| [21] | zhaoz,ched.influenceoftubearrangementonthethermalhydraulicperformanceofamembranehelical�coilheatexchanger[j].numericalheattransfer,parta:applications,2012,62(7):565�588.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
