临界热流(critical heat flux, CHF)是指在恒定压力下，在沸腾过程中液体和气体之间的转变，达到液体沸腾的最大热流密度。在科学和工程领域，研究和掌握临界热流现象对于提高热交换设备的性能至关重要。本文整理了关于临界热流的英语短句和例句大全，旨在帮助读者更好地理解和运用这一概念。通过阐释临界热流的概念和特性，并结合具体的例句，旨在深入浅出地介绍这一重要主题。
临界热流,critical heat flux
1)critical heat flux临界热流
1.Employing a pseudopolastic liquid as a work one,a CMC(sodium carbosy methly cellulose) aquatic solution,and a stainless steel tube heater heated by the direct passage of a current,thecritical heat flux(CHF) of flow boiling heat transfer in vertical downward flow of a highly viscous fluid was investigated for a consistency index η=1.采用薄壁不锈钢管，用高粘幂律流体进行了垂直向下流动沸腾临界热流实验研究，建立了临界热流关联式。
2.ith CMC aqueous solution as medium,thecritical heat flux(CHF)of flow boiling heat transferto a highly viscous fluid in vertical downward flow was investigated.以ＣＭＣ水溶液为介质，对高粘幂律流体进行了垂直管内流动沸腾超临界热流的研究。
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 Research on Convection Heat-Transfer of Supercritical Carbon Dioxide Flow In-tube;超临界CO_2流体管内对流换热的研究
4.CFD Study on Supercritical Water Flow and Heat Transfer in Rectangular Channel With Mixing Vane带交混翼矩形流道内超临界流动传热CFD研究
5.CFD Analysis of Thermal-Hydraulic Behavior of Supercritical Water in Square Sub-Channels方形子通道内超临界流体流动传热CFD分析
6.Experimental Investigation of RP-3 Convective Recuperation Law Based on Supercritical RP-3 Flow Recuperation System基于超临界RP-3流动换热系统的RP-3对流换热规律试验研究
7.Thermal Stability of BPA and DMT in Supercritical/Subcritical Fluid;超/亚临界流体中BPA和DMT的热稳定性研究
8.A Molecular Simulation Study of Thermodynamics Properties of CO_2 Expanded Liquids/Supercritical Fluids;CO_2膨胀液体/超临界流体热力学性质分子模拟
9.Supercritical Once-through High-temperature Furnace Overheated Tube Rupture Analysis and Treatment超临界直流炉高温过热器爆管原因分析及处理
10.Convection heat transfer of supercritical nitrogen in a small vertical tube竖直细圆管中超临界氮的对流换热研究
11.Static-state Mathematical Model of Evaporating Heat Surface in Supercritical Pressure Once-through Boilers超临界直流锅炉蒸发受热面静态数学模型
12.Analysis on Superheated Steam Temperature Characteristics of Supercritical Once-Through Boiler超临界直流锅炉过热汽温变工况特性分析
13.Numerical Simulation of Convection Heat Transfer for CO_2 at Supercritical Pressure in Vertical Circular Tube超临界压力CO_2在垂直管内对流换热数值模拟
14.CONVECTION HEAT TRANSFER OF CO_2 AT SUPERCRITICAL PRESSURES IN TUBE DURING COOLING冷却条件下管内超临界压力CO_2对流换热研究
15.Heat transfer in a 600 MWe supercritical circulating fluidized bed boiler with water cooled wall panels600MWe超临界循环流化床锅炉的炉膛水冷壁传热
16.Analysis of Superheated Steam Temperature and Its Influencing Factors for Supercritical Once-through Boiler超临界直流锅炉的过热汽温及其影响因素分析
17.HEAT TRANSFER CALCULATION FOR EVAPORATIVE HEATING SURFACE IN SUPERCRITICAL ONCE-THROUGH BOILER SUITABLE FOR PREDICTION OF ENTHALPY VALUE AT INTERMEDIATE POINT适合于中间点焓值预测的超临界直流锅炉蒸发受热面传热计算
18.An Experimental Investigation on the DNB of Steam-water Mixtures in Vertical Water Wall Tubes of Subcritical Pressure Once-through Boilers Xu Ren-de, Zhu Cai-guang亚临界直流锅炉水冷壁管内传热恶化的试验研究
相关短句/例句
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 oncritical 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
3)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。
4)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。
5)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。
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。
