1) heat deterioration
热恶化,热退化
2) heat transfer deterioration
传热恶化
1.
An extensive experimental investigation was made on liquid entrainment in vapor and heat transfer deterioration in falling film evaporation in a vertical tube with vapor up-flowing.
对垂直管内蒸汽和水逆向流动时的降膜蒸发、蒸汽夹带液体及传热恶化特性进行了详细的试验研究,发现降膜蒸发管工质入口端的壁温首先突然升高和出现波动。
2.
The critical dryness of heat transfer deterioration will experience a drastic reduction.
在近临界压力区 ,随着压力向临界压力靠近 ,光管的传热特性变差 ,传热恶化的临界干度下降得很厉害 ,甚至在过冷区就会发生壁温飞升 ;内螺纹管在近临界压力区可以消除传热恶化 ,但是随着靠近临界压力其抑制传热恶化的能力下降。
3.
According to experimental data,heat transfer characteristics of water in the vertically-upward internally-ribbed tubs at supercritical pressures is obtained,and the mechanism of heat transfer enhancement and heat transfer deterioration are thoroughly analyzed.
根据试验结果,细致地分析了质量流速和压力对超临界水传热特性的影响,并探讨了大比热容区传热强化和传热恶化的发生机理。
3) impairment of heat transfer
换热恶化
1.
The results indicate that for upward flow in a vertical tube, with the increasing of heat flux, heat transfer is reduced by the influence of buoyancy and impairment of heat transfer occurs.
研究发现,空气在竖直圆管中向上流动时,随着热流密度的不断增大,出现换热恶化现象。
4) deterioration
[英][di,tiriə'reiʃən] [美][dɪ,tɪrɪə'reʃən]
退化;恶化
5) deterioration
[英][di,tiriə'reiʃən] [美][dɪ,tɪrɪə'reʃən]
退化,恶化
6) thermal annealing nitridation
热退火N化
补充资料:恶化
恶化
deterioration
病情变化向不利于机体方面发展转化的过程。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条