Performance Evaluation of the Ignition Quality Testers Equipped with TALM Precision Package (TALM-IQT™) Participating in the ASTM NEG Cetane Number Fuel Exchange Program

Ramadan, Omar; Menard, Luc; Gardiner, David; Wilcox, Aaron; Webster, Gary D.

doi:10.4271/2017-01-0720

Cited by 7 publications

(10 citation statements)

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“…Due to the cost of the apparatus, many indicators that describe the self-ignition delay are used to accurately determine the cetane number, which is determined using the dedicated test analyzers (derived cetane number, DCN) and the laboratory methods (cetane index, CI, and calculated cetane index, CCI), and also the approximate calculation formulas for residual fuels (calculated ignition index, CII, and calculated carbon aromaticity index, CCAI) [43]. In this experiment, the determination of the value of the derived cetane number (DCN) [44,45] was not possible for mixtures of lubricating oils with diesel oil contamination due to the technical limitations of the device and the flammability properties of mixtures with a low content of diesel oil in the mixture.…”

Section: Ignition Properties Of the Oil Diluted With Diesel Oilmentioning

confidence: 99%

“…The CCI index was chosen as the critical parameter, which is determined in accordance with the ASTM D4737-21 standard based on the volatility of the substance [46] and is described by the withdrawal temperatures of 10%, 50%, and 90% v/v of the test mixture during distillation [35]. The CCI indicator is interpreted analogously to the CN [43] and is determined in accordance with the mentioned standard based on the four-variable equation [35], i.e.,:…”

Section: Ignition Properties Of the Oil Diluted With Diesel Oilmentioning

confidence: 99%

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Assessment of the Impact of Lubricating Oil Contamination by Biodiesel on Trunk Piston Engine Reliability

2023

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The rheological, ignition, and tribological properties of lubricating oils diluted with biodiesel were analyzed. The flash point tFP, calculated cetane index CCI, density ρ, coefficient of the temperature density change ε, kinematic viscosity ν, dynamic viscosity η, viscosity index VI, and lubricity during a High-Frequency Reciprocating Rig (HFFR) test (x, y, WSD, and WS1.4) and lubricating conditions during an HFFR test (oil film resistance FILM and friction coefficient μ) were determined. The test was performed for the oil mixtures of the lubricating oil of the SAE 30 and SAE 40 viscosity grades, which were diluted with the biodiesel blend (D93B7—diesel oil with 7% v/v fatty acid methyl esters, FAME) at concentrations of diesel oil in the mixture equal to 0% (pure lubricating oil), 1%, 2%, 5%, 10%, 20%, 30%, 50%, and 75% m/m, respectively. The experiment confirmed the existence of clear relationships between the increase in the dilution of lubricating oil with tested biodiesel blend and tFP, ρ, ε, ν, η, and VI, and the deterioration of lubrication conditions. It is recommended to take remedial action even in the case of low diesel oil concentration (<5% m/m) in the lubricating oil due to tFP, ν, and η changes. Simultaneously, the tests showed no significant effect on the lubricity and the CCI. The critical contamination of oil with fuel in the range of 2–5% by weight, as indicated in the literature, still allowed for a certain “safety margin” regarding these parameters. However, when the concentration of diesel fuel in the lubricating oil exceeded 5–8% m/m, the deterioration of the lubrication was expressed by a decrease in FILM and an increase in μ was observed; hence, such a contamination should be considered excessive. When the concentration of diesel fuel exceeds 10% by weight, there is a serious risk of engine damage during operation.

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Section: Ignition Properties Of the Oil Diluted With Diesel Oilmentioning

confidence: 99%

Section: Ignition Properties Of the Oil Diluted With Diesel Oilmentioning

confidence: 99%

Assessment of the Impact of Lubricating Oil Contamination by Biodiesel on Trunk Piston Engine Reliability

2023

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“…As indicated by Formula (2), the temperatures t 10 , t 50 , and t 90 of the recovery of a specific amount of fuel during the distillation are also used to calculate the empirical indicators of the fuel autoignition delay (which is an alternative to a measured parameter, the cetane number (CN)). One such indicator is the calculated cetane index (CCI), which is interpreted in the same way as the cetane number (the cetane rating) [34]. The CCI can be determined using an equation with two or four variables described in the respective standards.…”

Section: Gas Chromatographymentioning

confidence: 99%

“…The CCI can be determined using an equation with two or four variables described in the respective standards. According to ASTM D976, the CCI value is [34]…”

Section: Gas Chromatographymentioning

confidence: 99%

The Initial Boiling Point of Lubricating Oil as an Indicator for the Assessment of the Possible Contamination of Lubricating Oil with Diesel Oil

Chybowski

2022

Energies

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This article provides a brief introduction to the indicators of the volatility and flammability of lubricating oils and fuels. It is proposed that the initial boiling point be used as an indicator of the contamination of lubricating oil with distillate fuel (i.e., diesel biofuel oil) in the context of the rapid detection of explosion risks in the crankcase. Detailed tests were carried out on lubricating oil samples (SAE 30 and SAE 40 grades, which are most commonly used in the lubrication systems of marine trunk engines) diluted with diesel oil at selected mass concentrations (0, 1, 2, 5, 10, 20, 50, and 100%). The oils were tested to determine their relevant properties: the flash point temperature and the initial boiling temperature. The flash point was determined in a closed crucible using the Pensky–Martens method, which is in accordance with PN-EN ISO 2719. The differences between the initial boiling point and the flash point of the tested lubricating oils were determined for different dilution levels of lubricating oil in diesel fuel. An approximate method for the calculation of the flash point of the oil based on the initial boiling point is proposed. The results of oil flash point measurements are compared with values calculated as a function of the boiling point for both lubricating oils tested. An evaluation of how well models fit the experimental results is reported. Conclusions are presented on the applicability of the proposed method during operational practice.

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“…totally automated laboratory model (TALM) technology have improved the IQT T M test accuracy, reproducibility and repeatability[114]-[116] and made it less intervention with the operator. The repeatability or test-retest reliability is used to show the accuracy of the results when the test or experiment is repeated several times and measurements taken under same operating conditions.…”

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confidence: 99%

Combustion Characteristics of n-heptane Through Temperature Variation Measurements Using Ignition Quality Tester

Hmood¹

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The constant volume combustion apparatus, known as the Ignition Quality Tester (IQT T M), is increasingly used around the world to measure the ignition delay (ID) of compression ignited fuels, and to calculate the derived cetane number (DCN) from correlations developed with the cetane number (CN). The IQT is widely used in research due to its capability to manipulate combustion controller parameters, including pressure, temperature, oxygen content and mass of injected fuel. Recently, the IQT has also been used to conduct experiments on fuels with a longer ID, such as gasoline. Most findings from I would like to greatly thank all people who either contributed to the work described with this thesis or to me personally during the working time on it. First and foremost, I would like to express my gratitude and appreciation to my supervisor professor Edgar A. Matida. His continuous support and guidance have demolished the difficulties toward gaining my PhD. I would like to acknowledge the Advanced Engine Technology (AET) Ltd. for allowing me to use their facilities and dedicating an IQT to do my research. The AET staff was wonderful and generous in providing everything for my research. I must thank Mr. Gary Webster, the principal of the AET for the opportunity to work in his laboratory, may he rest in peace. I also want to appreciate the unlimited technical support during experimental work from Luc Menard, Omar Ramadan, Dave Gardiner, and Aaron Wilcox. Without a scholarship from my home country Iraq, it was impossible to achieve this work. I hope all progress and prosperity to my country and peace to all people there. Many thanks to all friends for their emotional supports and invaluable advises. Their encouragement during difficult times of my study has inspired me and made me more productive. Finally, I dedicate this thesis to my family; my beloved mother and father whose love continues as long as my heart is beating, my lovely wife for always standing by me and my kids, my elder brothers Assim and Yasir with respect, and to all other brothers and sisters.

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Performance Evaluation of the Ignition Quality Testers Equipped with TALM Precision Package (TALM-IQT™) Participating in the ASTM NEG Cetane Number Fuel Exchange Program

Cited by 7 publications

References 4 publications

Assessment of the Impact of Lubricating Oil Contamination by Biodiesel on Trunk Piston Engine Reliability

Assessment of the Impact of Lubricating Oil Contamination by Biodiesel on Trunk Piston Engine Reliability

The Initial Boiling Point of Lubricating Oil as an Indicator for the Assessment of the Possible Contamination of Lubricating Oil with Diesel Oil

Combustion Characteristics of n-heptane Through Temperature Variation Measurements Using Ignition Quality Tester

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