临界热流密度,critical heat flux
1)critical heat flux临界热流密度
1.Status and Existing Problems of Critical Heat Flux Lookup Table;临界热流密度查询表的现状及其存在的问题
2.Investigation of Critical Heat Flux of Annular Flow in Vertical Upward Round Tube;垂直向上圆管环状流临界热流密度研究
3.Analytical study on critical heat flux in a vertical rectangular channel with a closed bottom;底部封闭矩形通道临界热流密度的理论研究
英文短句/例句

1.Study on Critical Heat Flux of Liquid Jet Impingement Boiling on a Heated Flat Surface;受热平板上液体喷流沸腾临界热流密度的研究
2.A Fractal Model for Critical Heat Flux in Pool Boiling;池沸腾中临界热流密度的一个分形模型
3.The experimental results show that water jet impingement induces higher heat flux, higher critical temperature and narrower transition temperature range.水冷实验数据分析结果表明:射流能提高热流密度和临界温度,缩小过渡区温度区间。
4.Enhancement of Critical Current Density in MgB_2 Bulk Superconductors by Chemical Doping;高临界电流密度的MgB_2块材的掺杂研究
5.Enhancement of Critical Current Density in MgB_2 Bulk Superconductors by Chemical Doping高临界电流密度的MgB_2块材掺杂研究
6.IMPROVING CRITICAL CURRENT DENSITY OF MgB_2 BY CODOPING WITH C AND Al铝、碳共掺提高MgB_2临界电流密度
7.Experimental study on the factors affecting the interface between hot and cold fluid in the density lock影响密度锁内热-冷流体分界面因素的实验研究
8.Effects of BaCuO_2 addition in YBa_2Cu_3O_(7-δ) on the critical current densityBaCuO_2的添加对YBa_2Cu_3O_(7-δ)临界电流密度的影响
9.Critical current density distribution for armature coil of high temperature superconducting motor高温超导电机电枢线圈临界电流密度研究
10.threshold population inversion density临界粒子数反转密度
11.critical temperature thermistor临界温度热敏电阻器
12.ACCURATE MEASUREMENT OF HEATFLUXDENSITY──INTELLIGENT HEAT FLOW METER热流密度的准确测量─—智能热流计
13.Fine Patterning YBa_2Cu_3O_(7-δ) Films and Their Critical Current Density;YBa_2Cu_3O_(7-δ)薄膜的微细图形化及其临界电流密度的测试
14.Preparation of Low Density PS Foam by Using Supercritical CO_2超临界流体CO_2技术制备低密度PS发泡材料的研究
15.Kinetic model of alkylation considering internal diffusion factors and supercritical fluid density基于超临界流体密度的烷基化内扩散影响动力学
16.Relationship between the number of average valence electrons and the critical current density of the doping MgB_2平均价电子数与掺杂MgB_2体系临界电流密度的关系
17.Research on the Heating Surface Metal Temperature Soft Sensor and Prediction in Super-critical Once-through Boiler Based on Artificial Intelligenc基于人工智能的超临界直流炉受热面金属温度软测量及预测研究
18.Analysis of fluctuation of reheated steam temperature for 1 000 MW ultra-supercritical pressure once-through boilers and related retrofit1000MW超超临界压力直流锅炉再热蒸汽温度波动大的分析与改进
相关短句/例句

Critical Heat Flux(CHF)临界热流密度
1.The quantificational effects of the nanoparticles concentration and the flow conditions on the jet boiling heat transfer and the critical heat flux(CHF) were systemically investigated.对高温平板滞止区内水-氧化铜纳米流体圆形喷流冲击沸腾的核态沸腾特性和临界热流密度(CHF)进行了系统的稳态实验研究,考察了纳米颗粒质量分数、流速、过冷度等系统条件对喷流沸腾和CHF的影响,建立了预示核态沸腾的经验型方程。
2.A steady heat transfer experiment was carried out for predicting the critical heat flux(CHF) of convective boiling for a round R-113 liquid jet impingement on the stagnation zone of a hot surface.对高温平板滞止区内R-113的喷流冲击沸腾的临界热流密度(CHF)进行了系统的稳态实验研究。
3)CHF临界热流密度
1.EXPERIMENTAL INVESTIGATION OF THE CRITICAL HEAT FLUX (CHF) OF LIQUID NITROGEN IN NARROW CHANNELS;窄缝通道中液氮的临界热流密度实验研究
2.In this paper,a fractal model for the critical heat flux(CHF) is proposed.提出了临界热流密度的一个分形模型,根据加热表面活化点的分形分布得到了临界热流密度的表达式,从该模型中发现大空间临界热流密度(CHF)是壁面过热度、接触角和流体物理特性的函数。
3.In this paper, a fractal model for the critical heat flux (CHF) is proposed.本文第二章介绍了大空间临界热流密度的传统模型,并进行了简要的评述。
4)Critical Heat Flux (CHF)临界热流密度
1.An experimental investigation was carried out to predict the Critical Heat Flux (CHF) of convective boiling of 2 subcooled liquids for a round jet impingement on the stagnation zone of a hot surface.本文对高温平板滞止区内三种过冷液体的圆形喷流冲击沸腾的临界热流密度进行了系统的稳态实验研究。
2.A theoretical analysis and an experimental investigation were carried out for predicting the critical heat flux (CHF) of convective boiling for a round saturated water jet impingement on the jet stagnation zone of a hot surface.对高温平板滞止区内饱和水喷流冲击沸腾的临界热流密度进行了理论解析和实验研究。
5)critical heat flux density临界热流密度
6)Critical heat flux (CHF)临界热流密度(CHF)
延伸阅读

临界热流密度临界热流密度critical heat flux  此时,有更多的汽泡生成。但热流密度增至c点后,如果继续增加热流密度,则由于汽泡密度太大,以致联成汽膜。这种汽膜将加热面与冷却剂隔开,从而使传热能力急剧下降,壁温将由c点急剧上升到。‘点.。点的热流密度(亦即c‘点的热流密度)即定义为临界热流密度。达到临界热流密度时出现的壁温急剧升高,可能造成释热元件表面过热,甚至烧毁。所以临界热流密度有时也被称作烧毁热流密t01卿l伽执j[0仪专屯1 八r.丫、沸腾工况下热流与沮压的关系a以下是液体自然对流工况.a一b是自然对流和泡核沸璐混合的工况;b-。是泡核沸璐工况;c一d是泡核沸璐和膜态沸肠混合的工况.d一e是膜态沸肠工况.e一f是膜态沸腾加辐射的 工况度。由于在此热流密度下开始偏离泡核沸腾而向膜态沸腾过渡,故又叫偏离泡核沸腾热流密度。 临界热流密度与实际(或设计的)热流密度之比称为偏离泡核沸腾比。设计上应保证偏离泡核沸腾比大于1。 影响临界热流密度的主要因素有冷却剂流速、压力和含汽量等。通常液流中含汽量愈大、流速愈低、则临界热流密度愈小。而压力的影响则不是单调的,低压下,临界热流密度随压力的增加而增大;高压下,则随压力的增加而减小。 实验的临界热流密度数据一般概括成经验公式的形式,其中的临界热流密度表示为各种自变t(有时还有一些因变量)的函数。这些公式都只在严格规定的各自变t范围内是最佳的,不推荐外推到这个范围之外。例如下述的W一3公式,临界热流密度qcr表示为 叮。,=3 .154Xlo‘〔(2.022一6.23sxlo一色P) +(0.1722一1.43xlo一吕P)exp(18.177 一5 .987xlo一’P)苏〕〔(0.1484一l.596x.+。·1729苏.二})x些瓮黔+1·。37〕 X(1 .157一0.869浓)〔0.2664 +0.8357exP(一124D。)〕(0.8258 +0.34lX10一8△H.)FW/mZ式中p为冷却剂工作压力,Pa;G为冷却剂质t流密度,kg/(h·m,);从为当t直径,m;不为计算点处的含汽量;△月一H一H.。为冷却剂在进口处的欠热焙差,H.为工作压力下冷却剂的饱和熔,J/kg;Hln为冷却剂在进口处的熔,J/kg,F为格架修正因子。公式的适用范围为:P=(6.59~15·86)x 10‘pa;G,(4·88~24·41)X lo6kg/(h·mZ);De一(5·08~17·78)X10一3m;X.簇o·15;H,。)930·4 X 10,J/kg。I一n]旧rel旧m一du临界热流密度(eritieal heat flux)由泡核沸腾转变为膜态沸腾时的单位表面积、单位时间内所传出的热t。它是反应堆热工水力设计中的一个限制t,即不允许热流密度达到或过分接近临界热流密度,以防发生嫩料元件的过热或烧毁。 图中给出沸腾工况下的热流与温压的关系.由图可见,在a一b段,随粉热流密度的增加,壁温逐渐升高。