受限空间乙醇燃烧小尺度火焰特性.pdf

28, 163 V ol28, Sum No163 2010 9, 5 ENERGY CON SERVAT ION TECHNOLOGY Sep2010, No5 受限空间乙醇燃烧小尺度火焰特性 , , (华南理工大学 电力学院, 广东 广州 510641 : 本文主要分析在受限空间条件下液体乙醇燃 小尺度火焰形态的特性, 并且与自由空 间下的实验结果进行比对, 得出在受限空间条件下乙醇蒸发燃 的特殊规律实验采用石英玻璃 管模拟受限空间, 通过改变玻璃管的直径调整受限空间的大小最后得出实验结论, 在受限空间条 件下, 燃 小火焰体积得到压缩, 火焰的平均温度得到提升本文主要通过实验手段进行研究, 以 期为微型燃 器的设计提供一定的理论参考 : 受限空间; 预热空气; 小尺度; 液体乙醇 : TQ 038. 1 : A : 1002- 6339 ( 2010 05- 0415- 04 Characteristics of E thanol Com bustion M icro- scale F lam e in the Restricted Space Condition YANG Z e- liang, L IU Zh i- cheng, GAN Y un- hua ( Schoo l of electric pow er in South China Un iversity of T echnology, Guang zhou, 510641 Abs tract: In th is paper, the con form at ion characteristics of the m icro- scale flam e o f liquid ethanol com bustion under the restricted space is analyzed, and com pared w ith the expermi en tal resu lts in the free space, and it concludes special law s o f the ethano l vaporation com bu stion in the restricted space condi t ion. The quartz g lass tubes are u sed for smi u lating the restricted space in the expermi ent, and the di m ensions of the restricted space is adjusted by chang ing the quartz g lass tubes size. F inaly, it draw s con clusions that the vo lum e o f m icro- sca le flam e is compressed m uch low er and the average tem perature o f the flam e is h igher in the restricted space cond ition. It m a in ly researches by the exper mi enta l m ethod, and then hopes to prov ide som e reference for the m icro - scale combu sto r design. K ey w ord s: restr iced space; preheating air; m icro- sca le; liquid ethano l , 0