重油加水乳化燃油燃燒特性實驗研究

An Experimental Study on the Burning of Water-in-Oil Emulsions

李聰盛(T. S. Lee) ； 楊建嘩(J. Y. Yang) ； 陳茂景(M. J. Chen)

《中國航空太空學會學刊》 31卷3期 (1999/09) Pp. 247-252

https://doi.org/10.6124/TAASRC.199909_31(3).12

摘要

本研究完成乳化重油二次霧化微爆定性觀測以及相關燃燒污染排放之測試實驗。利用顯微放大技術，觀察不同含水量乳化重油中水粒子粒徑及分佈，經過自行研製之高速剪力均質機作用後，乳化重油中水粒子粒徑約10微米且呈均勻分佈。本研究亦成功發展以壓電片振動液注產生單位徑液方法，以期有效控制重油液滴大小以進行微爆燃燒之定量分析。利用成功大學航太中心之重油燃燒設備及技術，完成乳化重油之燃燒及其對排放污染之影響等定量特性測試。測試結果顯示，乳化重油微爆燃燒可減少CO及NO(上標 x)之排放量。隨著乳化重油中含水量之增加，NO(上標 x)之排放量隨著降低，在燃燒室溫度爲1200C時，4.76%含水量之乳化重油其NO(上標 x)排放值較純重油燃燒之排放值減少約15%。而粒狀污染物排放值受燃燒室溫度影響較大，在較高溫度下，乳化重油中含水量對粒狀污染物排放幾無影響。但在較低之燃燒室溫度(1000C)，因乳化重油微爆燃燒作用，其粒狀污染物排放值較純重油燃燒之排放值減少約27%。

關鍵字

乳化重油燃燒 ； 二次霧化 ； 微爆燃燒 ； 乳化重油檢測

並列摘要

Combustion and emission characteristics of burning of No. 6 residual oil and its emulsion with water are investigated in a can combustor test rig. Oil-water emulsion of 4.76% and 9.09% water contents was made of a homemade fuel conditioner. The effects of water content on the formation of pollutant are examined at a fixed combustion temperatures With Beckman/Rosemount gas analyzer and Roscoe engine smoke emission sampler, the exhaust pollutant and particulate are measured. Temperature distribution inside the combustion chamber is employed to assess the flame structure. A wider flame zone was found in the case of emulsified fuel combustion.
The higher the water content in the emulsion fuel, the lower the NO(subscript x) emission was obtained. At the combustor temperature of 1200C, the NO(subscript x) emission from 4.76% Water content emulsion was found about 15%, less than that from pure oil combustion. The particulate showed a strongly dependent on the combustion temperature. At lower combustor temperature (100CC), the particulate from burning of 4.76 % water content emulsion was observed about 27% less than that from pure oil combustion.

並列關鍵字

microexplosion c ombustion ； Oil-water emulsion ； pollutant emission