Response surface methodology application in optimization of performance and exhaust emissions of RON 98, aviation gasoline 100LL and the blends in Lycoming O-320 engine

Kumar, Thanikasalam; Mohsin, Rahmat; Majid, Zulkepli; Ghafir, Mohammad Fahmi Abdul; Yusuf, Nur Kamilah; Kim, Je Young; Wash, Ananth Manickam; Sahri, Dzulkarnain Mohd

doi:10.1016/j.fuel.2019.115909

Cited by 11 publications

(6 citation statements)

References 46 publications

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“…Various unleaded fuel compositions, including ordinary unleaded motor gasoline (MOGAS), have been extensively tested in real engines against these properties yielding promising results [21][22][23][24][25][26], illustrating that it is experimentally feasible to match the performance of leaded aviation fuel without the lead. What the industry needs is commercialisation of this technology informed by this research, and this object has recently been achieved.…”

Section: Warningmentioning

confidence: 99%

Lead exposure from general aviation emissions in the UK: A review and call for action

Mills

Peckham

2022

Public Health Challenges

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Section: Warningmentioning

confidence: 99%

Lead exposure from general aviation emissions in the UK: A review and call for action

Mills

Peckham

2022

Public Health Challenges

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“…68 The filter performance is shown in Figure 5. The filter performance is acceptable, and the filtered pressure traces are smooth, specifically in the early stages of the knock event (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25).…”

Section: Filter Designmentioning

confidence: 99%

“…15 Then using response surface methodology, these different fuels have been statistically examined for their performance and emissions compared to 100 LL. 13,16 This shows the importance of research, testing, and analysis of unleaded fuel replacement for general aviation.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of ASTM D6424 standard for knock analysis using unleaded fuel candidates on a six cylinder aircraft engine

Ebrahimi

Gordon

Canteenwalla

et al. 2021

International Journal of Engine Research

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The ASTM D6424 standard is used for general aviation piston engine knock detection and is tested for unleaded fuel candidates. Issues are discussed regarding the identification of knocking cycles, filtering frequency bands, and the effects of down-sampling for this knock detection technique. The knock tests were performed on the Continental TSIO-520-VB engine at 12,000 ft for take-off and cruise conditions using three different fuels, the standard leaded 100LL avgas and two unleaded fuel candidates. The ASTM D6424 knock detection method has its own particular disadvantages, which are detailed and compared to other knock detection methods including the third derivative of pressure signal and discrete wavelet transform. Updates to the standard include a minimum sampling rate of 0.2 CAD. Additionally, the current standard does not contain recommendations for filtering the cylinder pressure which results in over detection of knocking cycles with the two new aviation fuel candidates tested. Recommendations are provided regarding the pressure signal processing prior to ASTM D6424 knock-characterization.

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“…Octane number of AVGAS fuel is higher than the octane number of gasoline (Kumar et al, 2020;Rajendran & Mohsin, 2018). Octane rating is a measure of how resistant a fuel is to knock; the higher the octane ratio, the more the fuel/air mixture can be compressed without ignition (Kumar et al, 2019;Rajendran & Mohsin, 2018). The ratio of low and very volatile components in AVGAS is less than gasoline used in automobiles (Berry, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effect of Gasoline-AVGAS Blends on Engine Performance of Engine with Direct Injection

Doğan¹,

Gökmen²,

Aydoğan³

2021

bes

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AVGAS called is a high-octane fuel that is obtained by formulating Gasoline and called aviation Gasoline. Due to the high-octane level, the air-fuel mixture can be compressed at a higher rate without ignition. TSI, which consists of the initials of Turbo Supercharger Injection, is defined as a turbocharged and direct injection engine. Generally used in small volume engines such as 1.2 lt. In this study, aviation Gasoline AVGAS and Gasoline were mixed in certain proportions and TSI was applied in a Gasoline engine. The changes in the performance of AVGAS-Gasoline fuel blends used in Direct Injection Engine were investigated in this experimental study. A5 (5% AVGAS, 95% Gasoline fuel by volume), A10, and Gasoline fuel were used as fuel. The tests were performed at full-throttle valve opening and variable engine speeds. The results of the tests showed increases in engine power, engine torque values with the use of AVGAS-Gasoline fuel blends, whereas, decrease was observed in brake specific fuel consumption values. While an increase of 1.54% was achieved in engine torque values compared to gasoline, the optimum values in engine power and specific fuel consumption were obtained as 51.92 kW at 3500 rpm and 239 g/kWh at 3000 rpm, respectively. In addition, increases were observed in the exhaust gas temperature and engine oil temperature, while a decrease was observed in the noise values.

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Response surface methodology application in optimization of performance and exhaust emissions of RON 98, aviation gasoline 100LL and the blends in Lycoming O-320 engine

Cited by 11 publications

References 46 publications

Lead exposure from general aviation emissions in the UK: A review and call for action

Lead exposure from general aviation emissions in the UK: A review and call for action

Evaluation of ASTM D6424 standard for knock analysis using unleaded fuel candidates on a six cylinder aircraft engine

Effect of Gasoline-AVGAS Blends on Engine Performance of Engine with Direct Injection

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