The unique characteristics of the composite materials for specific requirements makes these more popular in a variety applications such as aerospace, automotive (pistons, cylinder liners, bearings), and structural components, resulting savings material energy. In this paper aluminium alloy Al6061 was reinforced with TiB2 particles by stir casting method. Metal matrix composites produced method have advantages compare other methods. Experiments were conducted varying weight fraction (0%, 4%,...

Increasingly stringent emissions and fuel economy standards have long remained a source of challenges for research in automobile engine technology development towards the more thermally efficient less polluting engine. Spark ignition (SI) engines lower part-load efficiency when compared with diesel engines. The greatest opportunity improving SI is by way higher compression ratio, variable valve timing, low friction, reducing throttling losses, boosting, down-sizing. Variable ratio (VCR) has...

Metal matrix composites, produced by stir casting method, have more advantages when compared to other methods. Aluminium alloy Al6061 was reinforced with various percentages of TiB 2 particles using high energy method. The characterization performed through EDS and SEM. mechanical behaviours like hardness, tensile wear were investigated. Wear experiments conducted a pin-on-disc tester at varying load evaluate the tribological property Al6061-TiB composite. mechanism studied In this study...

The competent and efficient utilization of feedstocks is highly essential in the transesterification biodiesel from sardine fish oil. identification optimal reaction parameters high importance to maximize yield produced oil at low cost. Application ultrasonic energy-assisted production catalyzed by KOH catalyst has been studied under different conditions. Response surface methodology (RSM) based on central composite rotatable design (CCRD) was employed optimize three important process...

Metal matrix composites possess some glamorous properties like light weight, low density ,high strength-to-density ratio, formable to complex shape, lower manufacturing cost and are used more in commercial, industrial, marine, naval based industrial extensively automobiles aerospace empennage, wings, fuselage fighter aircraft, bomber, transport, general aviation, rotary aircraft etc. Many researches done on micro structural metals they result shows that composite of having good mechanical...

The performance of the swirl atomizers largely depends on spray characteristics liquid sheets. In this context, a modified linear instability analysis accounting for weak form centrifugal force along flow direction is proposed and breakup length conical sheets predicted. investigation dispersion relation that covers both viscous inviscid sheets, with different wave modes (sinuous varicose) approximations (long short). A newly identified transition zone across long- short-wave defines Weber...

The aim of this study is to investigate the application ultrasonic energy-assisted biodiesel production process from fish oil catalyzed by KOH at different conditions. optimization reaction parameters, such as molar ratio methanol oil, catalyst concentration and time, on transesterification for methyl ester has been studied. Taguchi method with an L 9 orthogonal array was implemented optimize parameters. optimal experimental conditions obtained were 9:1, 1.5% Wt. a time 30 min. According...

The main purpose of the experiment is to investigate performance and emission characteristics a hydrous methanol (85% 15% water) fueled homogeneous charge compression ignition (HCCI) engine through various spark timings (SPT) (32°, 34°, 36°, 38° 40° before Top Dead Centre). In this study plug used for assisting auto-ignition. Experimental investigation reveals that brake thermal efficiency (BTE) an HCCI increases when SPT increased maximum BTE 28.5% was obtained 40°SPT. Emission analysis...