| 自然循环型气液固三相流载气蒸发传热的实验研究 |
| |
| 引用本文： | 于志家,罗丽华,张远树,徐维勤,沈自求.自然循环型气液固三相流载气蒸发传热的实验研究[J].工程热物理学报,1998(4). |
| |
| 作者姓名： | 于志家 罗丽华 张远树 徐维勤 沈自求 |
| |
| 作者单位： | 大连理工大学化学工程研究所!大连，116012，大连理工大学化学工程研究所!大连，116012，大连理工大学化学工程研究所!大连，116012，大连理工大学化学工程研究所!大连，116012，大连理工大学化学工程研究所!大连，116012 |
| |
| 摘 要： | 符号表Cs固体颗粒在液体中的含量vol．％dp固体颗粒直径mmde实验段当量直径mmh表面传热系数kw／m2Kk液体导热率W／mKq热通量kw／m2r液体汽化潜热kJ／kgTw加热壁面温度℃ug载气表现速度mm／sul循环液速m／sρg载气的密度kg／m3ρl液体的密度kg／m3ρs固体颗粒的密度kg／m3μg气相粘度mPa·sμl液相粘度mPa·sBo沸腾准数Nu努塞尔准数Reg载气雷诺数Rel液体雷诺数沸腾与蒸发装置内换热壁面上的结垢与结疤是降低换热效率的重要因素之一。换热装置的防垢抗垢一直受到重视。近年来，一些研究者将固体颗粒引入换热器的加热管内，形成流化床换热…
|
| 关 键 词： | 气液固三相 蒸发 传热 |
HEAT TRANSFER OF GAS CARRYING EVAPORATION WITH FLUIDIZED SOLID PARTICLES |
| |
| YU Zhijia ,LUO Lihua, ZHANG Yuanshu, XU Weiqin ,SHEN Ziqiu.HEAT TRANSFER OF GAS CARRYING EVAPORATION WITH FLUIDIZED SOLID PARTICLES[J].Journal of Engineering Thermophysics,1998(4). |
| |
| Authors: | YU Zhijia LUO Lihua ZHANG Yuanshu XU Weiqin SHEN Ziqiu |
| |
| Abstract: | Experimental study was carried out of heat transfer of the Gas Carrying Evaportion with fluidized solid particles in a vertical annulus. The annulus consists of an electrical heating bar and an outer glass tube. Air was adopted as the carrying gas. Water and aqueous solutions of carboxyl methyl cellulose were used as the working liquids. Solid particles were ceramic beads and glass beads of different diameter. The experimental results showed that the liquid flow boiling heat transfer was increased and the superheat of liquid at heating surface lowered remarkably by the introduction of the carrying gas and the fluidized solid pericles. The heat transfer augmentation became weaker as the liquid viscosity icreased.Experimental data of the heat transfer were correlated. |
| |
| Keywords: | gas-liquid-solid three-phase evaporation heat transfer |
| 本文献已被 CNKI 等数据库收录！ |
