Effects of dampers on piston slapping motion

Mahroogi, Faisal O.; Narayan, Seema

doi:10.1504/ijvnv.2020.112432

Cited by 4 publications

(2 citation statements)

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“…Costs of vibration and noise control are usually very high, e.g., the yearly costs of warranty for brake was about 1 Billion U.S. $. during the year 2005 [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. So it is necessary to focus on NVH aspects of combustion engines.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Transducer Location for Novel Non-Intrusive Methodologies of Diagnosis in Diesel Engines

Narayan¹,

Kaisan²,

Abubakar³

et al. 2021

Sound&Vibration

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The health monitoring has been studied to ensure integrity of design of engine structure by detection, quantification, and prediction of damages. Early detection of faults may allow the downtime of maintenance to be rescheduled, thus preventing sudden shutdown of machines. In cylinder pressure developed, vibrations and noise emissions data provide a rich source of information about condition of engines. Monitoring of vibrations and noise emissions are novel non-intrusive methodologies for which positioning of various transducers are important issue. The presented work shows applicability of these diagnosis methodologies adopted in case of diesel engines. The effects of changing various fuel injection parameters was analyzed. Scope of using non-intrusive technique has been analyzed by changing locations of microphone. Novelty of this worklies in exploring signal processing methods for various locations around the engine test set up. Various frequency ranges of contributing noise and vibration sources were identified. Time-Frequency analysis showed the onset of various cyclic. Based on the identification of various frequency bands, it is possible to device suitable filters in order to extract more information.

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Section: Introductionmentioning

confidence: 99%

Optimization of Transducer Location for Novel Non-Intrusive Methodologies of Diagnosis in Diesel Engines

Narayan¹,

Kaisan²,

Abubakar³

et al. 2021

Sound&Vibration

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“…The objectives of this research are to compare and evaluate the performance of the biodiesel blends with petro-diesel on a stationary multi-cylinder diesel engine, and carry out exhaust air quality analysis of the combustion products (gases) [17][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

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confidence: 99%

Quality assessments, performance, and emissions evaluation of biodiesel from citrullus lanatus oil seeds and diesel blends in compression ignition engine

Narayan

Kaisan

Mahroogi

2023

The Journal of Engineering

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Due to limited stock of levels of fossil fuel resources and ecological issues, biodiesel is becoming an attractive alternative choice for replacing conventional fuels. Biodiesel can be used by mixing with different fuels like citrullus lanatus seeds, camphor, cleaner fuel injector, sunflower, safflower, soybean, cottonseed, rapeseed, palm, Jatropha, and Moringa oil seeds. This paper reviews use of biofuels blended with citrullus lanatus seeds. The citrullus lanatus biodiesel was mixed with diesel in different percentages by volume. Some physico‐chemical characteristics of blends and pure diesel were investigated and it was established that it conforms to the American Society of Testing Materials (ASTM) standards. The exceptions were the viscosity and specific gravity of the pure biodiesel B100 which were 0.09 and 0.018 mm2/s above the ASTM standard, respectively. All blends were run on a stationary 4‐cylinder diesel engine at 70% loading and speeds of 1500, 2000, and 2500 rpm. It was deduced that B10 gave the best brake power, thermal efficiency, and optimum specific fuel consumption at a speed of 2500 rpm. B15 gave the highest brake mean effective pressure. B25 and B100 gave the least values of brake power and brake thermal efficiency across the speeds. B100 gave the highest brake specific fuel consumption. Furthermore, the exhaust emission gases such as CO2, CO, NOx, and HC in different engine conditions stated above were recorded and analyzed. It was found that B25 emitted about 53% lesser CO2 and 37% lesser CO as compared to pure diesel with zero HC at 2500 rpm. The blends were better in terms of engine performance and also in reduction of emissions in most cases, than pure diesel fuel. Problem statement: Various emissions from engines like unburnt hydro carbons, particulate emissions, NOx, and CO have bad effects on ecology. This work presents an overview on use of novel hybrid fuels in compression ignition engines with an aim of mitigating effects of emissions on environment. Biodiesel was blended with Citrullus lanatus oil and pure diesel in different proportions to see effects on performance of diesel engines. The presented work may pave the way for use of alternative cheap and environmentally friendly fuels in automotive systems.

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A Critical Review of Biofuels as an Alternative Fuel to Diesel in Gulf Regional Corporation (GCC) Region: Current Market Trends and Future Opportunitie

Mahroogi¹,

Narayan²,

Kaisan³

et al. 2022

Komunikácie

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Bio Fuels are considered as good alternatives for conventional fossil fuels. By the year 2020, in the GCC region these fuels are able to meet around 0.5 - 1% of total transportation fuel demand. This industry grew at rate of 3.4% over the period of 2015-2020 with a strong projected growth in the Kingdom of Saudi Arabia (KSA). Bio fuels are used to operate automotive for mining and construction industries. Critical barriers in foreign investments pose a major challenge for growth of this sector in the GCC region. The presented work discusses situation and growth predictions of Bio-Fuel industry in the GCC region. It also discusses about current growth, trends, opportunities and challenges being faced by major companies operating in the GCC region.

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Effects of dampers on piston slapping motion

Cited by 4 publications

References 0 publications

Optimization of Transducer Location for Novel Non-Intrusive Methodologies of Diagnosis in Diesel Engines

Optimization of Transducer Location for Novel Non-Intrusive Methodologies of Diagnosis in Diesel Engines

Quality assessments, performance, and emissions evaluation of biodiesel from citrullus lanatus oil seeds and diesel blends in compression ignition engine

A Critical Review of Biofuels as an Alternative Fuel to Diesel in Gulf Regional Corporation (GCC) Region: Current Market Trends and Future Opportunitie

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