語系:
繁體中文
English
說明(常見問題)
回圖書館首頁
手機版館藏查詢
登入
回首頁
切換:
標籤
|
MARC模式
|
ISBD
The effect of dissolved oxygen on th...
~
Roan, Melissa Anne.
FindBook
Google Book
Amazon
博客來
The effect of dissolved oxygen on the pyrolytic degradation of jet fuels.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
The effect of dissolved oxygen on the pyrolytic degradation of jet fuels./
作者:
Roan, Melissa Anne.
面頁冊數:
245 p.
附註:
Source: Dissertation Abstracts International, Volume: 64-07, Section: B, page: 3503.
Contained By:
Dissertation Abstracts International64-07B.
標題:
Engineering, Petroleum. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3097035
The effect of dissolved oxygen on the pyrolytic degradation of jet fuels.
Roan, Melissa Anne.
The effect of dissolved oxygen on the pyrolytic degradation of jet fuels.
- 245 p.
Source: Dissertation Abstracts International, Volume: 64-07, Section: B, page: 3503.
Thesis (Ph.D.)--The Pennsylvania State University, 2003.
Future high-speed aircraft will require fuels that can withstand high temperatures and pressures. Research into the mechanisms of degradation has revealed that fuels undergo different degradation mechanisms at different temperatures. At relatively low temperatures (150°C--250°C), the fuel reacts with dissolved oxygen in a process termed autoxidation to form gums and varnishes. At higher temperatures (<400°C) pyrolysis takes place, and the fuels break down to form carbonaceous solids. Between these two temperatures, intermediate reactions occur. Although much research has been done on autoxidation and pyrolysis, little research has been done on the intermediate reactions or the link between the two regimes.Subjects--Topical Terms:
1018448
Engineering, Petroleum.
The effect of dissolved oxygen on the pyrolytic degradation of jet fuels.
LDR
:03385nmm 2200301 4500
001
1865286
005
20041217071842.5
008
130614s2003 eng d
035
$a
(UnM)AAI3097035
035
$a
AAI3097035
040
$a
UnM
$c
UnM
100
1
$a
Roan, Melissa Anne.
$3
1952739
245
1 4
$a
The effect of dissolved oxygen on the pyrolytic degradation of jet fuels.
300
$a
245 p.
500
$a
Source: Dissertation Abstracts International, Volume: 64-07, Section: B, page: 3503.
500
$a
Adviser: Andre Boehman.
502
$a
Thesis (Ph.D.)--The Pennsylvania State University, 2003.
520
$a
Future high-speed aircraft will require fuels that can withstand high temperatures and pressures. Research into the mechanisms of degradation has revealed that fuels undergo different degradation mechanisms at different temperatures. At relatively low temperatures (150°C--250°C), the fuel reacts with dissolved oxygen in a process termed autoxidation to form gums and varnishes. At higher temperatures (<400°C) pyrolysis takes place, and the fuels break down to form carbonaceous solids. Between these two temperatures, intermediate reactions occur. Although much research has been done on autoxidation and pyrolysis, little research has been done on the intermediate reactions or the link between the two regimes.
520
$a
This research focuses on the effects of the presence of dissolved oxygen in the fuel. The hypothesis of this work is that the presence of dissolved oxygen in a fuel has an effect on the pyrolytic deposition behavior and thermal stability of the fuel. The effect, namely increasing or decreasing the deposit formation, is dependent on the fuel composition. Six fuels were tested for this work: three fuels consisting largely of hydroaromatic and aromatic compounds, and three fuels consisting mainly of naphthenic compounds. These fuels were expected to be thermally stable.
520
$a
Removal of dissolved oxygen via nitrogen sparging increased the pyrolytic stability of all six fuels. The process of nitrogen sparging removed volatile compounds from the fuel, which may have increased the thermal stability of the fuels at higher temperatures. The fuels were also rated in thermal stability. Those containing naphthenic compounds were found to be more stable than those containing hydroaromatic and aromatic compounds, particularly in the autoxidative regime. Additionally, the fuels that contained fewer n-alkanes exhibited greater pyrolytic stability.
520
$a
There was also substantial evidence that the mechanism for pyrolytic deposit formation differs if dissolved oxygen is present or absent. Temperature-programmed oxidation profiles and scanning electron microscope images show that the deposit from the fuels has a different structure depending on the oxygen content of the starting fuels. This is especially obvious in the intermediate deposits. These differences are more pronounced in the deposits formed from the fuels consisting of hydroaromatic and aromatic compounds than in the deposits formed from the fuels consisting of naphthenic compounds.
590
$a
School code: 0176.
650
4
$a
Engineering, Petroleum.
$3
1018448
650
4
$a
Engineering, Materials Science.
$3
1017759
690
$a
0765
690
$a
0794
710
2 0
$a
The Pennsylvania State University.
$3
699896
773
0
$t
Dissertation Abstracts International
$g
64-07B.
790
1 0
$a
Boehman, Andre,
$e
advisor
790
$a
0176
791
$a
Ph.D.
792
$a
2003
856
4 0
$u
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3097035
筆 0 讀者評論
館藏地:
全部
電子資源
出版年:
卷號:
館藏
1 筆 • 頁數 1 •
1
條碼號
典藏地名稱
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
W9184161
電子資源
11.線上閱覽_V
電子書
EB
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
評論
新增評論
分享你的心得
Export
取書館
處理中
...
變更密碼
登入