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159 articles for “Compression ratio”
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Assessing the Impact of the Compression Ratio on Emission and Performance Attributes of Jatropha Biodiesel Fuelled VCR Engine.
Abstract: In the view of fast diminishing petroleum reservoirs and polluted environment, it’s the need of time to opt for a viable alternative to diesel fuel. Fuels derived from plant oils or animal fats are better alternatives to diesel fuels. The jatropha derived from the non-edible plant has proven its ability for being an alternative to conventional diesel. The variable compression ratio (VCR) technology is recognised for improving the performance, efficiency, …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 6–17 Read article
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Experimental Investigation of a 4-Stroke Diesel Engine for Varying Fuel Injection Pressure and Compression Ratio
Abstract: Diesel engines are widely used in transportation, agriculture, power sector and various other types of industries due to its high fuel efficiency. An improvement in the performance of the same makes remarkable difference in nation economy. This paper presents an experimental investigation of a 4-stroke engine, using diesel as a fuel. The engine is modified to study the effect of various parameters on the performance of engine. The parameters varied …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 3, 2016 · pp. 11–20 Read article
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Effect of Compression Ratio on Petro-DEE Fuelled HCCI Engine
Abstract: In compression ignition engines, soot-NOx paradox is extremely challenging issue, which remains to be resolved. Homogeneous charge compression ignition is a new combustion concept that gives benefits such as diesel like efficiency and resolves the problem of high level of NOx and PM simultaneously. It gives very high rate of heat release which cannot be easily controlled. The present work deals with development of HCCI engine and experimental investigations on …
Published in Journal of Automobile Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 1–11 Read article
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Performance analysis of Butanol and Waste Cooking Oil bio-diesels in VCR diesel engine
Abstract: Global energy crisis is the key reason for switching to alternate fuels without compromising with environmental standards. This paper focuses on assessing the performance parameters viz. brake thermal efficiency (BTE), brake specific fuel consumption (BSFC), air/fuel ratio and torque against gradually increasing load (0-4 kg) for waste cooking oil (WCO) biodiesel, butanol biodiesel and neat diesel in a variable compression ratio engine. Three different blends of WCO and butanol, separately, …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 3, 2018 · pp. 113–117 Read article
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Emission Analysis Of Butanol and Waste Cooking Oil in VCR Diesel Engine
Abstract: Environmental pollution and depleting energy resources are two major reasons to find a suitable alternative fuel. The experimental study is carried out on a variable compression ratio engine to compare the emissions produced by the engine using the blends of waste cooking oil and that of butanol, separately with the emissions produced by the same engine using neat diesel on the different compression ratio and loads. The blends were prepared …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 3, 2018 · pp. 86–90 Read article
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RCCI Engine: Performance and Emission Testing Using Biodiesel
Abstract: With dwindling fossil fuel reserves and rising energy demands, the need for renewable alternatives is more critical than ever. This study explores the potential of Karanja biodiesel, a fuel derived from Karanja oil, as a sustainable replacement for diesel in RCCI engines. Karanja biodiesel offers several advantages. It's renewable, reduces dependence on fossil fuels, and produces lower emissions compared to traditional diesel. This research investigates how Karanja biodiesel blends impact …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 3, 2023 · pp. 30–41 Read article
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The Effect of Compression on Sound Absorption of Multi-layered Isotropic and Transversely Isotropic Porous Materials at Oblique Incidence
Abstract: Porous materials which are effective in sound absorption in automobile and airplane industry areoften used under compression. This compression is associated with a reduction in thickness and theresulting changes in acoustical properties and non-acoustical parameters of the porous materials.Therefore, these acoustics changes should be taken into account when the behavior of these materialsis studied. So far, the studies on the effect of compression on sound absorption characteristics ofporous materials have …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 1, 2021 · pp. 43–61 Read article
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Thermal Analysis of Kirloskar VCR Engines Using Blended Biodiesels under Varying Loads
Abstract: The increasing demand for sustainable energy has prompted much research into environment-friendly substitutes for traditional fossil fuels. In this study, the thermal performance and emission characteristics of Kirloskar Variable Compression Ratio (VCR) diesel engines evaluated with varying load conditions using biodiesel-sourced oil blended with soybean oil are discussed. B0 (pure diesel) to B100 (pure biodiesel) blends were considered for the study to assess their effects on parameters, like brake thermal …
Published in International Journal of Electrical and Communication Engineering Technology · Vol. 3, Issue 1, 2025 · pp. 19–34 Read article
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Enhancing Compressive Strength and Durability through Optimization of Concrete Mixtures
Abstract: This research investigates how varying cement-aggregate ratio, water-cement ratio, and slump height affect the compressive strength of concrete mixtures. Through an analysis of 36 samples, each representing different combinations of these parameters, significant insights are gained into the optimization of concrete mix designs for construction applications. The study reveals that higher water-cement ratios tend to decrease compressive strength due to increased porosity in cured concrete. Conversely, higher cement-aggregate ratios generally …
Published in Journal of Geotechnical Engineering · Vol. 11, Issue 1, 2024 · pp. 1–12 Read article
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Elimination of Super Chargers in Automobiles by Using Cooling System
Abstract: Nowadays, the fossil fuels are depleting day by day. The efficiency of an automobile has to be increased to overcome the shortage of fossil fuels. If we reduce the consumption of the brake power obtained during combustion for other purposes rather than running the vehicle such as super chargers, cooling systems etc., we can increase the efficiency. We are using almost 35% of the output power of the crankshaft for …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 3, 2016 · pp. 8–10 Read article
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Comparative Study of Performance and Emission of Gasoline and Gasoline-Ethanol Blends
Abstract: AbstractThis study is about analysing performance of gasoline and gasoline-ethanol blends in multi-fuel engine. Performance, combustion and emission characteristics of gasoline fuel and gasoline ethanol blended fuels have been analysed in detail under various load conditions, various ignition angle, different compression ratios and at different rpm. The study showed improvement in thermal efficiency at higher compression ratios compared to lower compression ratios as well as with ethanol blended fuel. There …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 9, Issue 3, 2018 · pp. 1–8 Read article
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Recognition of Engine Parameters for Mahua Biodiesel by Analyzing the Performance Using OFAT Approach
Abstract: The review work deals with the prediction of significant engine input parameters by the use of one factor at a time approach. The technique is a trial of experiments by varying only one engine input parameter and others remain at constant values. The various engine input parameters are found from the literature review. In the current work, six engine input parameters are predicted from the past research. These are blending …
Published in International Journal of Environmental Noise and Pollution Control · Vol. 1, Issue 1, 2023 · pp. 1–10 Read article
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Review on Free Piston Linear Alternator
Abstract: This study presents the development methodology of the Free-Piston Linear Alternator/Generator (FPLG). The FPLG is a free-piston combustion engine with an integrated linear generator. The engine can be used as a range-extending device in an electric vehicle. Unlike conventional internal combustion engines, a free-piston linear engine has no a crankshaft, and thus the pistons move freely in the cylinder. This allows a free-piston linear engine to easily adjust the compression …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 8–18 Read article
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Effect of Alccofine and Tyre buffings on Engineering Properties of Sand
Abstract: In the present paper, the effect of alccofine and tyre buffings addition on the compression and bearing ratio of sand are evaluated through laboratory study. On the basis of compaction test, a reference mix composed of sand + 12 % alccofine + 2 % tire buffing was selected for further study. The unconfined compression and bearing ratio test on the reference mix was then carried out by curing the sample …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 1, 2020 · pp. 9–20 Read article
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Optimization of Cement Replacement by Fly Ash in Compressive Strength of Portland Cement Concrete
Abstract: The production of cement has been known for its additive role in environmental pollution. As a measure of abatement of pollution effort, scientist have evoked the concept of diluting cement with various pozzolanic additive like fly ash, blast furnace slag etc. Many of these additives were found to be acceptable for cement replacement, but their exact role and efficacy remains elusive. In the present study, fly ash was added as …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 24–35 Read article
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Evaluating the Effect of the EGR Rate on the Performance and the Emission of VCR Engine Operating on Jatropha Biodiesel Blends
Abstract: AbstractThe modern diesel engines running on biodiesel employ many techniques to encounter strict exhaust emission norms. Among the many techniques suggested to mitigate the NOX emission from the compression ignition engine, the Exhaust Gas Recirculation (EGR) system is being employed extensively. The EGR curtails the proportion of the oxygen in the mixture and lowers the flame temperature inside the cylinder. This research is intended to investigate the influence of the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 9, Issue 1, 2018 · pp. 7–14 Read article
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Optimization of Fly Ash and Granulated Blast Furnace Slag (FA-GBFS) Mixes for Flexible Pavements
Abstract: This study investigates the compaction, strength, and permeability characteristics of fly ash (FA) stabilized with granulated blast furnace slag (GBFS) to determine the optimal mix proportions for geotechnical applications. Standard Proctor compaction, unconfined compressive strength (UCS), California Bearing Ratio (CBR), and permeability tests were conducted on FA-GBFS mixtures, with GBFS content varying from 10 to 50% by dry weight. The results indicate that increasing GBFS content enhances the maximum dry …
Published in Journal of Geotechnical Engineering · Vol. 12, Issue 2, 2025 · pp. 14–19 Read article
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Performance Evaluation of Petrol-Ethanol Blends and Testing on Multicylinder 4-Stroke SI Engine
Abstract: The usage of different alcohols as a fuel for spark ignition (SI) engines has been in progress since the invention of engine, with ethanol being renewable, bio-based and ecofriendly is the best replacement for petrol as fuel in SI engines. Ethanol is derived basically from sugarcane, cassava, corn and other waste biomass materials. The choice of ethanol as a fuel is due to the positive influence on engine performance due …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 6, Issue 1, 2015 · pp. 41–45 Read article
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Deep Learning Enhanced Compressive Sensing for Wireless IoT Data Optimization and Weather Monitoring.
Abstract: This research explores the application of deep learning and compressive sensing in order to optimize data traffic in non-orthogonal multiple access (NOMA)-based wireless internet of things (IoT) networks and weather monitoring. Such a framework would be very effective and overcome pilot attacks and reconstruction losses for secure data transmission. In this regard, a strong communication model has been adopted based on power-domain NOMA for simultaneous wireless transmission by multiple IoT …
Published in International Journal of Satellite Remote Sensing · Vol. 2, Issue 2, 2024 · pp. 20–36 Read article
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A Short Survey of Data Compression Techniques for Column Oriented Databases
Abstract: AbstractColumn oriented data-stores has all values of a single column stored as a row followed by all values of the next column. Such way of storing records helps in data compression since values of the same column are of the similar type and may repeat. This paper surveys the various data compression techniques in column oriented databases. Data compression is efficiently used to save storage space and network bandwidth. It …
Published in Current Trends in Information Technology · Vol. 3, Issue 2, 2013 · pp. 1–6 Read article