Predicting lubricant oil induced pre-ignition phenomena in modern gasoline engines: The reduced GasLube reaction mechanism

Distaso, Elia; Amirante, Riccardo; Calò, G.; Palma, P. De; Tamburrano, Paolo; Reitz, Rolf D.

doi:10.1016/j.fuel.2020.118709

Cited by 26 publications

(9 citation statements)

References 74 publications

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“…It should be borne in mind that this assumption underestimates GA parameters because the expansion of detonation products is a finite-time process. (3) The WO is modeled by n-hexadecane (C 16 H 34 ), which is often used as a physical and chemical surrogate for lubricant oils [40]. It is assumed that the WO enters the gasifier as a liquid at a temperature of T 0 = 300 K.…”

Section: Modelsmentioning

confidence: 99%

Gasification of Liquid Hydrocarbon Waste by the Ultra-Superheated Mixture of Steam and Carbon Dioxide: A Thermodynamic Study

Frolov,

Panin,

Smetanyuk

2024

Energies

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The thermodynamic modeling of waste oil (WO) gasification by a high-temperature gasification agent (GA) composed of an ultra-superheated H2O/CO2 mixture is carried out. The GA is assumed to be obtained by the gaseous detonation of fuel–oxidizer–diluent mixture in a pulsed detonation gun (PDG). N-hexadecane is used as a WO surrogate. Methane or the produced syngas (generally a mixture of H2, CO, CH4, CO2, etc.) is used as fuel for the PDG. Oxygen, air, or oxygen-enriched air are used as oxidizers for the PDG. Low-temperature steam is used as a diluent gas. The gasification process is assumed to proceed in a flow-through gasifier at atmospheric pressure. It is shown that the use of the detonation products of the stoichiometric methane–oxygen and methane–air mixtures theoretically leads to the complete conversion of WO into a syngas consisting exclusively of H2 and CO, or into energy gas with high contents of CH4 and C2-C3 hydrocarbons and an LHV of 36.7 (fuel–oxygen mixture) and 13.6 MJ/kg (fuel–air mixture). The use of the detonation products of the stoichiometric mixture of the produced syngas with oxygen or with oxygen-enriched air also allows theoretically achieving the complete conversion of WO into syngas consisting exclusively of H2 and CO. About 33% of the produced syngas mixed with oxygen can be theoretically used for PDG self-feeding, thus making the gasification technology very attractive and cost-effective. To self-feed the PDG with the mixture of the produced syngas with air, it is necessary to increase the backpressure in the gasifier and/or enrich the air with oxygen. The addition of low-temperature steam to the fuel–oxygen mixture in the PDG allows controlling the H2/CO ratio in the produced syngas from 1.3 to 3.4.

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Section: Modelsmentioning

confidence: 99%

Gasification of Liquid Hydrocarbon Waste by the Ultra-Superheated Mixture of Steam and Carbon Dioxide: A Thermodynamic Study

Frolov,

Panin,

Smetanyuk

2024

Energies

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“…Although various heat treatment and use of synthetic lubricants have been found to adequately mitigate against wear rate in rubbing mechanical components, however, developments in seed oils have demonstrated significant results in the search for an environmentally compliant and biodegradable lubricant. 12,13 Notwithstanding, researchers are still inundated by the challenge of satisfactorily confirming specific vegetable oil for lubrication against the common nondegradable mineral oils for general purpose applications like the SAE40 standard. Increased desire for sustainable environment in a technologically advancing world where attainment of clean energy becomes a challenging pursuant to this advancement.…”

Section: Introductionmentioning

confidence: 99%

Potential of palm oil with tert-Butylhydroquinone in place of mineral oil lubricant for reducing environmental degradation

Ojaomo

Samion

Zawawi

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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Lubrication has remained an important aspect of machines maintenance and designs since time immemorial, yet the quest for improved lubricant for sustainable life of both equipment and environment continues to intensify. Many lubricants that is, research for a lubricant that is capable of providing maintenance of sustainable equipment without compromise to the environment is on the rise have been formulated and a lot of discoveries have been found in approaches toward enhanced and sustainable lubricants performance. Addition of foreign materials in nano quantity to fortify base oil properties for special purposes has also received greater attention in recent years. While this approach has yielded amazing results, concerns bordering on non-biodegradability of the mineral oils and safety of their additives to the environment equally continue to grow. This has escalated research interest in vegetable oils and their derivatives such as palm oil and other seed oils as a substitute toward limiting the consequences of improper disposal and eventual natural habitat degradation. A new approach to this quest is the adoption of palm oil (in Super Olein IV64 grade) with 150–450particles per million of tert-Butylhydroquinone for comparison with tribological behavior of mineral oil (Shell Helix SAE40W10) within the temperatures of 40°C to 100°C using linear reciprocating tribometer Winducom ASTM G133 test rig. The results showed tremendous similarity in coefficient of friction values between 0.1 and 0.12 of Super Olein with 150 particles per million and 300 particles per million of tert-Butylhydroquinone correlating closely with that of Shell Helix SAE40W10 at 80°C and 100°C, respectively. Wear track on the 20mm square plate was observed on the low-resolution microscope while wear scar diameter of the 6 mm SKD11 ball was observed on the high-resolution microscope. The results obtained at a temperature of 100°C in Super Olein IV64 + 150 particles per million tert-Butylhydroquinone and Super Olein IV64 + 300 particles per million tert-Butylhydroquinone is very similar to that of SAE40W10 except for Super Olein IV64 + 450 particles per million TBHQ whose coefficient of friction maintained a higher value of 0.3 at those temperatures.

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“…However, a number of issues need to be addressed for such engines, including reliable control of the cycle-to-cycle combustion phasing and the narrow engine operating range. In HCCI engines, the combustion process is governed by a complex chemical kinetics, which is influenced by several factors IOP Publishing doi:10.1088/1742-6596/2385/1/012086 2 [2], including intake temperature and chamber temperature distribution [3][4], combustion chamber geometry [5][6], EGR [7] and lubricant oil contamination [8].…”

Section: Introductionmentioning

confidence: 99%

On Iso-octane Combustion with Ozone Addition under HCCI Engine-Like Conditions

D’Amato

Magi

Viggiano

2022

J. Phys.: Conf. Ser.

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Numerical simulations were carried out to study the influence of ozone on the Ignition Delay Time (IDT) of iso-octane/air mixtures under typical operating conditions of HCCI engines. 0-D and 2-D CFD simulations were carried out to compute IDT and to characterize compression, combustion, and expansion in an HCCI engine, respectively. A kinetic model was developed by merging a mechanism for iso-octane, a sub-mechanism for nitrogen oxides, and a sub-mechanism for ozone. The model was used to investigate iso-octane/air/ozone mixtures under typical operating conditions of HCCI engines running with very lean mixtures (equivalence ratio equal to 0.3). Parametric analyses were carried out considering different values of temperature (500 to 1200 K), pressure (15 to 40 bar) and ozone concentration (0 to 50 ppm). The results show that as ozone concentration increases IDT decreases, with a greater impact at low temperatures, and the NTC (Negative Temperature Coefficient) effect decreases. However, the reduction of IDT with ozone addition is less as ozone concentration increases, especially at low temperatures. An increased pressure, on the other hand, generally promotes faster ozone decomposition and enhances ozone effect on IDT reduction for all temperatures except in the range 760-840 K, where the opposite effect occurs due to NTC phenomenon. Finally, when temperature is very high, i.e. 1200 K, both ozone and pressure have little influence on the percentage reduction of IDT.

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Predicting lubricant oil induced pre-ignition phenomena in modern gasoline engines: The reduced GasLube reaction mechanism

Cited by 26 publications

References 74 publications

Gasification of Liquid Hydrocarbon Waste by the Ultra-Superheated Mixture of Steam and Carbon Dioxide: A Thermodynamic Study

Gasification of Liquid Hydrocarbon Waste by the Ultra-Superheated Mixture of Steam and Carbon Dioxide: A Thermodynamic Study

Potential of palm oil with tert-Butylhydroquinone in place of mineral oil lubricant for reducing environmental degradation

On Iso-octane Combustion with Ozone Addition under HCCI Engine-Like Conditions

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