the present work is focused on the performance analysis of a 1.7 liter engine with turbocharger. the ultimate target is studying the response of the turbocharger to the inlet pulsating flow. such numerical analysis requires the time variation of pressure and velocity at turbine inlet. in order to achieve such information, one dimensional unsteady viscous compressible flow within a 1.7 liter tur...

background: aim of this study is to evaluate the accuracy of the gated volumetric modulated arc therapy (vmat/rapidarc) using 2d planar dosimetry, dynalog files and compass 3d dosimetry system. materials and methods: pre-treatment quality assurance of 10 gated vmat plans was verified using 2d array and compass 3d dosimetry system. advantage of compass over 2d planar is that it provides the clin...

A well-matched relationship between the compressor and turbine plays an important role in improving turbocharger engine performance. However, matching of engine, internal operation is not considered comprehensively. In order to fill this gap, paper proposed joint law (IJOL) method based on operating characteristics using a combination experimental simulation methods. On basis, optimization was ...

Variable geometry (VG) and wastegate mechanisms are commonplace within modern turbochargers and contain critical components without which the correct and efficient operation of a turbomachine would be affected. Such mechanisms rely upon components repeatedly and accurately moving against one another, even when subjected to extreme conditions such as high temperatures, a range of exhaust gas che...

Introduction: Many patients have only diastolic dysfunction without any abnormality in systolic function. We compared cardiac diastolic parameters obtained by gated myocardial perfusion SPECT (Gated SPECT) with those evaluated by echocardiography. Methods: Forty-nine patients (aged 37-85 years, 19 males and 30 women) underwent Gated SPECT and echocardiogr...

turbocharging an engine boosts its power by increasing the amount of input air. this task is accomplished by using the exhaust gas to power a turbine which is engaged with a compressor. the variable geometry turbocharger, vgt is a unique turbocharger that the diffuser vane angle can be changed over a wide range of positions. the mathematics of turbomachinery flow analysis is intensive and uses ...

In a modern small sized passenger car fitted with a common rail diesel engine, turbo-lag is an important factor which hampers its performance. This paper discusses the basics of turbo-charger and VGT and some of the methods employed to reduce the turbo-lag in CRDI diesel engine. A novel turbocharger concept, approach to design, the control strategy and advantages of the concept are explained.

Rob Eling 1,2,*, Mathys te Wierik1,2, Ron van Ostayen 1 and Daniel Rixen 3 1 Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands; [email protected] (M.t.W.), [email protected] (R.v.O.) 2 Research and Development, Mitsubishi Turbocharger and Engine Europe, Damsluisweg 2, 1332 EC Almere, The Netherlands 3 Institute of...