在本研究中，使用了快速壓縮機(Rapid compression machine, RCM)來研究傳統航空燃油JP-5、Jet A-1以及加氫替代航空燃油(Hydroprocessed renewable jet fuel, HRJ)在氣相均勻預混的情況下之點火特性，同時所使用之HRJ是經由成功大學能源與系統整合實驗室自行開發之催化劑，將棕櫚油催化而得。其中，探討在中低溫(630-830 K)、壓力(10、15以及20 bar)以及當量比(0.25和0.5)下之點火延遲情形。三種航空燃油的點火延遲時間均會隨著壓力以及當量比的增加而減少，而且HRJ在低溫的環境下，表現出比JP-5以及Jet A-1較好的反應性以及較短的點火延遲時間，其減少了約50%的點火延遲時間，而隨著溫度升高，三種航空燃油都存在負溫度係數(Negative temperature coefficient, NTC)區間，其中，HRJ的NTC起始溫度(T=710 K)較早於JP-5以及Jet A-1的NTC起始溫度(T=730K)，由此發現HRJ在中低溫下有更好的表現。

In this study, a rapid compression machine (RCM) was used to study the auto-ignition characteristics of the traditional jet fuel JP-5, Jet A-1 and the hydro-processing renewable jet fuel (HRJ) which is uniformly premixed in the gas phase. The HRJ in this study is a self-produced fuel made from Palm oil through the catalytic hydro-processing technology by the Energy and System Integration Laboratory of National Cheng Kung University. The ignition delay time was studied at low temperature (630-830 K), at pressure (10, 15 and 20 bar), and at equivalent ratio (0.25 and 0.5). The ignition delay time of the three aviation fuels will decrease with the increase of pressure and equivalence ratio, and HRJ shows better reactivity and shorter ignition delay time than JP-5 and Jet A-1 in low temperature condition. As the temperature increases, the three types of aviation fuels all have a negative temperature coefficient (NTC) region. The NTC starting temperature of HRJ (T=710 K) is earlier than JP-5 and Jet A-1 (T=730 K), and it is found that HRJ performs better at medium and low temperatures.

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