Intermediate species measurement during iso-butanol auto-ignition

Ji, Weiqi; Zhang, Peng; He, Tanjin; Wang, Zhi; Tao, Ling; He, Xin; Law, Chung K.

doi:10.1016/j.combustflame.2015.06.010

Cited by 36 publications

(12 citation statements)

References 29 publications

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“…All experiments were conducted using the Tsinghua University Rapid Compression Machine (TU‐RCM) . The TU‐RCM was a single piston type, which could be heated up to 150°C.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Note, the specific heat ratio (γ) was calculated based on the first 15 components that contain the most in naphtha. The experimental uncertainties were calculated using the same method as described in …”

Section: Experimental Methodsmentioning

confidence: 99%

“…The volume time‐history was obtained in the same manner as in Di et al . and Ji et al . and provided as Supplementary Material.…”

Section: Methodsmentioning

confidence: 99%

“…All experiments were conducted using the Tsinghua University Rapid Compression Machine (TU-RCM). 26,27 The TU-RCM was a single piston type, which could be heated up to 150°C. The mixture could be compressed to high pressure and high temperature in less than 30 milliseconds (ms).…”

Section: Tsinghua University Rapid Compression Machinementioning

confidence: 99%

“…The experimental uncertainties were calculated using the same method as described in. 26,27 where t 0 and t 1 are the time at end of compression and the time of p min , respectively, T in and p in are the initial temperature and pressure before compression.…”

Section: Definition Of Experimental Conditions and Ignition Delaymentioning

confidence: 99%

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Autoignition of light naphtha and its surrogates in a rapid compression machine

Wang

2019

Energy Science & Engineering

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Gasoline Compression Ignition (GCI) is a promising combustion mode to improve engine efficiency and reduce emissions. Naphtha has higher ignitability than gasoline and could be a better fuel for GCI. Understanding the autoignition behavior of naphtha is essential for the development of GCI engines. In this study, the ignition delay of light naphtha and its three surrogates, including PRF59 (59% iso‐octane and 41% n‐heptane in volume) and two three‐component surrogates composed of methyl‐cyclohexane, n‐heptane, and iso‐octane with blending ratios of 33.8%/43.2%/23% (MRF1) and 31.4%/33.3%/35.3% (MRF2) in volume were studied using a rapid compression machine. PRF59 was selected by matching the RON of light naphtha. MRF1 was composited by matching the RON and MON of light naphtha, while MRF2 was composed by matching RON and H/C. The experiments were conducted at equivalence ratio Φ = 0.5 and 1, P = 10, 20, and 30 bar, and temperature range of 665‐965 K. It was found that MRF2 best matched the first‐stage and total ignition delays of light naphtha, while PRF59 exhibited shorter first‐stage ignition delay. Although the ignition delay times of MRF1 and MRF2 were very close to each other, uncertainty analysis showed that matching RON and H/C ratio was a better method in determining the blending ratio. In addition, the MRF experiments were compared with predictions using the detailed mechanism. The mechanism showed good performance in reproducing the total ignition delay at high‐pressure conditions, but it underpredicted the ignition delay at low pressure. Also, the mechanism predicted less pronounced NTC behavior.

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“…All experiments were conducted using the Tsinghua University Rapid Compression Machine (TU‐RCM) . The TU‐RCM was a single piston type, which could be heated up to 150°C.…”

Section: Experimental Methodsmentioning

confidence: 99%

Section: Experimental Methodsmentioning

confidence: 99%

“…The volume time‐history was obtained in the same manner as in Di et al . and Ji et al . and provided as Supplementary Material.…”

Section: Methodsmentioning

confidence: 99%

Section: Tsinghua University Rapid Compression Machinementioning

confidence: 99%

Section: Definition Of Experimental Conditions and Ignition Delaymentioning

confidence: 99%

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