增加沸腾管入口段流动阻力是抑制沸腾管内流动不稳定性的主要措施之一。
One of the major measures to suppress flow instability in a boiling tube consists in increasing the flow resistance at the boiling tube inlet section.
阳光照射管阵时,管道里的液体会被加热沸腾,在日常情况下,液体会流进热泵并传导热能。
When sunlight hits the tubes the liquid within becomes superheated. In a home situation, it would then flow into a heat pump to transfer that heat.
热负荷的改变方式、最高初始热负荷以及加热前表面状态均将显著影响T管的沸腾传热性能和滞后现象。
The heat transfer efficiency and boiling hysteresis are affected by the method to change heat loading, the maximum initial heat loading, and surface aging before heating.
以水和正己烷作为介质,考察了通入空气对内管加热的竖直圆柱形环隙内的沸腾传热性能的影响。
Heat transfer of nucleate boiling of water and n-hexane in a vertical cylindrical annulus with inner side heated has been experimentally investigated.
对微型螺旋管蒸发器的沸腾换热与阻力特性进行了实验研究。
The characteristics of boiling heat transfer and pressure drop is studied experimentally.
对螺旋管中两相强制对流沸腾传热特性进行了试验研究。
Two phase flow forced convection boiling heat transfer on helical coiled tubes has been systematically studied.
论述了埋管结构对流化质量的影响,以及沸腾层燃烧份额对受热面布置的影响。
The effect of in-bed tube structure on bed fluidization as well as that of the fluid-bed combustion on heating surface arrangement is also discussed in the paper.
最佳管距对应的管束水力当量直径近似等于池内沸腾时的气泡脱离直径。
The optimum tube spacing equals approximately to the departure diameter of the bubbles during a pool boiling.
在常压下对竖直光管和环隙流道内沸腾换热启动阶段的壁温变化规律进行了实验研究。
An experimental investigation on transient of wall temperature in start-up process of pool boiling heat transfer, on vertical plain tube and narrow annuli under atmospheric pressure, was carried out.
在大容量、亚临界自然循环锅炉蒸发系统设计中,有时不可避免地需要部份地采用价格昂贵的内螺纹管,以避免出现膜态沸腾。
In evaporating system design of large subcritical pressure natural circulation boiler sometime expensive rifled tube will be used unavoidably in part, so that the film boiling Can be avoided.
本文报道了肋形隧道机械加工表面多孔管(JK—2管)单管管外池沸腾实验。
The present paper reports pool boiling experiments of the mechanically made porous surface tubes with ribbed tunnels (JK-2 tube).
本文提出了基于微肋管的薄液膜蒸发沸腾的输运现象数学模型及其有限差分求解方法。
The mathematic model for the transportation phenomenon of thin film evaporation basedon microfin tubes, as well as its finite difference numerical method, was conducted.
本文对氟利昂22在水平光滑管和内螺纹管内的流动沸腾换热特性进行了实验研究。
Flow boiling heat transfer characteristics in horizontal smooth tubes and internal grooved tubes of R22 are experimentally investigated.
这一最佳管距接近沸腾气泡的脱离直径。
This optimum tube spacing is quite close to the bubble departure diameter.
本文报道了几种不同平均开口度的T管、低肋管和光管的沸腾传热性能及沸腾滞后现象。
The performance and hysteresis of boiling heat transfer of T-tube with different opening, low fin tube, and two kind of plain tubes have been studied experimentally.
对JK - 1管和JK - 2管的降膜沸腾强化传热机理作了定性分析,并根据实验数据建立了简单的经验关联式。
The mechanisms for JK-1 tubes and JK-2 tubes to enhance spray falling film boiling has been analyzed and the simple correlations based on the experimental data was established.
说明本文所介绍的传热模型在一定程度上反映了沸腾燃烧锅炉内埋管传热过程。
It may be seemed that the heat transfer model presented in this paper would reflect the heat transfer process of the immersed tube in the fluidized bed combustion boiler.
介绍了表面增强型蒸发强化管,并对氟利昂制冷工质R22在该管外的沸腾换热进行了实验研究。
The experimental study on the performance of nucleate boiling of R22 outside the surface enhanced evaporation tubes was conducted by use of four two-sides enhanced tubes with different geometries.
为减少磨损,沸腾炉内蒸发管采用加焊半圆形钢板防磨。
Semicircle steel sheets were welded on the wall of evaporation pipes in fluidized bed roaster for anti-abrasion.
浓时产生二次蒸汽,通过蒸发器上升管送入提取罐作提取的热源和溶液,维持提取罐内沸腾。
The second vapor produced during concentration can enter the extraction tank through the upward pipe at the evaporator to serve as the heat source for extraction to maintain the boil inside the tank.
硫酸装置沸腾炉冷却管组穿孔的危害极大。
Hole forming in the cooling bundles of the fluidized bed roaster in sulfuric acid plant is very harmful.
文中尚对劣质煤沸腾燃烧锅炉中的埋管辐射放热系数进行了讨论。
The radiative heat transfer coefficients of the immersed tude within the operating conditions of the fluidized bed combustion boiler with low grade coal are also discussed.
在去离子水、乙醇、二甲苯三种介质中的沸腾传热测试表明表面多孔管具有优良的强化沸腾传热性能。
Porous surface tubes exhibited excellent performance in enhancing boiling heat transfer, with the deionized water, ethanol and xylene as the working fluids.
实验结果表明,机加工管的传热性能比同规格的工业光管及T型翅片管的传热性能有较大提高,在实验热负荷内其沸腾传热系数是光管的1.7~2.2倍。
The experimental results showed that the heat transfer coefficients for the porous surface tubes are 1.7~2.2 times larger than that for smooth tube.
管束对池沸腾换热有增强效应,水平管束的沸腾换热系数明显高于单管的沸腾换热系数。
For the horizontal tubes bundle an enhanced action on the pool boiling heat transfer exists. Heat transfer coefficient of the tube bundle is higher than that of a single tube.
将这种方法应用于沸腾炉空气埋管动态过程的研究时,其有效性得到证实。
The method is applied to the dynamic process of submerged air tube in fluidized bod boiler. The good effects are obtained.
实验结果表明,采用强化屏可使低肋管沸腾传热系数提高几倍乃至十倍。
The experiment results show that the boiling heat transfer coefficient can be 7-up to 10-fold enhanced by using shroud.
管束对池沸腾换热有增强效应,水平管束的沸腾换热系数明显高于单管的沸腾换热系数。
For the horizontal tubes bundle an enhanced action on the pool boiling heat transfer exists. Heat transfer coefficient of the tube bundle is...
管束对池沸腾换热有增强效应,水平管束的沸腾换热系数明显高于单管的沸腾换热系数。
For the horizontal tubes bundle an enhanced action on the pool boiling heat transfer exists. Heat transfer coefficient of the tube bundle is...
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