Alternative RON estimation method by using pressure oscillation analysis, serving novel spark ignition fuel development
Robeyn, Tom ; Larsson, Tara and Verhelst, Sebastian LU
(2024)
In Fuel
364.
- Abstract
For almost a century, the knock-resisting ability of a spark ignition fuel has been quantified with the RON and MON indications, conforming to the corresponding ASTM-D2699 and D2700 methods, respectively. These testing methods rely on specific pressure pickup technology that acts like a low-pass signal filter, thereby cutting off high frequency cylinder pressure information. Within a second-generation sustainable naphthenic fuel research framework where many different fuels had to be screened, the need arose to develop a simplified octane rating method for quick, economical and efficient knock-resistance evaluation. The method that was subsequently developed is based on mean average maximum pressure oscillations (MAMPO) and allows for... (More)
For almost a century, the knock-resisting ability of a spark ignition fuel has been quantified with the RON and MON indications, conforming to the corresponding ASTM-D2699 and D2700 methods, respectively. These testing methods rely on specific pressure pickup technology that acts like a low-pass signal filter, thereby cutting off high frequency cylinder pressure information. Within a second-generation sustainable naphthenic fuel research framework where many different fuels had to be screened, the need arose to develop a simplified octane rating method for quick, economical and efficient knock-resistance evaluation. The method that was subsequently developed is based on mean average maximum pressure oscillations (MAMPO) and allows for quick octane number verification with a CFR engine equipped with commonly available high frequency pressure measurement equipment. This paper investigates the necessary test parameters to deal with the stochastic nature of knock and to obtain a good correlation, not previously established in literature, between the MAMPO-based octane rating and the well-established RON. A method was found to enable fast and economical RON estimations of novel spark ignition fuels, additionally providing insight in the pressure oscillation behavior of a fuel during knock, enabling the assessment of potential knock-induced engine damage thanks to the use of high-frequency pressure information.
(Less)
- author
- Robeyn, Tom
; Larsson, Tara
and Verhelst, Sebastian
LU
- organization
- publishing date
- 2024-05
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Fuel
- volume
- 364
- article number
- 131086
- publisher
- Elsevier
- external identifiers
-
- scopus:85183978210
- ISSN
- 0016-2361
- DOI
- 10.1016/j.fuel.2024.131086
- language
- English
- LU publication?
- yes
- id
- 90a9d4f1-e181-40cb-a848-f0adf039aeab
- date added to LUP
- 2024-03-07 15:31:56
- date last changed
- 2024-03-07 15:33:08
@article{90a9d4f1-e181-40cb-a848-f0adf039aeab,
abstract = {{<p>For almost a century, the knock-resisting ability of a spark ignition fuel has been quantified with the RON and MON indications, conforming to the corresponding ASTM-D2699 and D2700 methods, respectively. These testing methods rely on specific pressure pickup technology that acts like a low-pass signal filter, thereby cutting off high frequency cylinder pressure information. Within a second-generation sustainable naphthenic fuel research framework where many different fuels had to be screened, the need arose to develop a simplified octane rating method for quick, economical and efficient knock-resistance evaluation. The method that was subsequently developed is based on mean average maximum pressure oscillations (MAMPO) and allows for quick octane number verification with a CFR engine equipped with commonly available high frequency pressure measurement equipment. This paper investigates the necessary test parameters to deal with the stochastic nature of knock and to obtain a good correlation, not previously established in literature, between the MAMPO-based octane rating and the well-established RON. A method was found to enable fast and economical RON estimations of novel spark ignition fuels, additionally providing insight in the pressure oscillation behavior of a fuel during knock, enabling the assessment of potential knock-induced engine damage thanks to the use of high-frequency pressure information.</p>}},
author = {{Robeyn, Tom and Larsson, Tara and Verhelst, Sebastian}},
issn = {{0016-2361}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Fuel}},
title = {{Alternative RON estimation method by using pressure oscillation analysis, serving novel spark ignition fuel development}},
url = {{http://dx.doi.org/10.1016/j.fuel.2024.131086}},
doi = {{10.1016/j.fuel.2024.131086}},
volume = {{364}},
year = {{2024}},
}