Analysis of a SuperTurbocharged Downsized Engine Using 1-D CFD Simulation

Chadwell, Christopher; Walls, Mark

doi:10.4271/2010-01-1231

Cited by 24 publications

(10 citation statements)

References 5 publications

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“…Downsizing is a very effective way of reducing BSFC in the entire engine speed-load domain, especially at low loads or high speeds (Mayer et al, 1982;Ecker et al, 2000;Ge et al, 2011;Saulnier and Guilain, 2004;Bargende and Berner, 2005;Banks et al, 2009;Fraser et al, 2009;Lumsden et al, 2009;Chadwell and Walls, 2010;Kirwan et al, 2010;Sisken et al, 2010;Thirouard and Pacaud, 2010;Gheorghiu, 2011;Pohorelsky et al, 2012). Downsizing (or even combined with down-speeding) at the same brake power means increased BMEP so that the engine speed-load modes re-defined by the US SET 13-mode or FTP cycle certification will all have elevated BMEP levels and hence lower BSFC and brake specific CO 2 emission.…”

Section: 6mentioning

confidence: 99%

Improving the environmental performance of heavy-duty vehicles and engines: particular technologies

Xin

Pinzon

2014

Alternative Fuels and Advanced Vehicle Technologies for Improved Environmental Performance

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Section: 6mentioning

confidence: 99%

Improving the environmental performance of heavy-duty vehicles and engines: particular technologies

Xin

Pinzon

2014

Alternative Fuels and Advanced Vehicle Technologies for Improved Environmental Performance

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“…According to Baines [48], such machine (and other contemporary turbocompounded engines) shows potential but is notoriously complex and quickly superseded by the advancing development of gas turbine engines. Chadwell and Walls [18] investigated the VanDyne SuperTurbocharger, a modern counterpart for the automotive sector that offers supercharging, turbocharging, and turbocompounding in one device. The SuperTurbocharger consists of a turbocharger that transmits power to and from the engine crankshaft via a high-speed traction drive with an integral reduction ratio, a set of reduction gears, a traction drive CVT, and a belt-and-pulley system (Figure 20, reproduced from VanDyne et al [86]).…”

Section: Mechanical Turbocompoundingmentioning

confidence: 99%

“…In this example, full-load performance potential is typically maintained through pressure charging (supercharging) to facilitate downsizing [15][16][17][18]. In conjunction with turbocharging, direct fuel injection and variable valve timing for inlet and exhaust valves can aid in the downsizing for gasoline engines [15].…”

Section: Introductionmentioning

confidence: 99%

Electric Boosting and Energy Recovery Systems for Engine Downsizing

Alshammari

Pesyridis

2019

Energies

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Due to the increasing demand for better fuel economy and increasingly stringent emissions regulations, engine manufacturers have paid attention towards engine downsizing as the most suitable technology to meet these requirements. This study sheds light on the technology currently available or under development that enables engine downsizing in passenger cars. Pros and cons, and any recently published literature of these systems, will be considered. The study clearly shows that no certain boosting method is superior. Selection of the best boosting method depends largely on the application and complexity of the system.

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“…Therefore, some type of shaft coupling between the IC engine and the LP compressor should be considered in order to provide the necessary power. Such devices are complex, but nowadays, several elements to couple the high-speed turbomachinery to the low-speed IC engines have been developed [22].…”

Section: Configuration Without Lp Turbine With Mp Egrmentioning

confidence: 99%

HD Diesel engine equipped with a bottoming Rankine cycle as a waste heat recovery system. Part 2: Evaluation of alternative solutions

Serrano

Dolz

Novella

et al. 2012

Applied Thermal Engineering

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ElsevierSerrano Cruz, JR.; Dolz Ruiz, V.; Novella Rosa, R.; García Martínez, A. (2012). HD Diesel engine equipped with a bottoming Rankine cycle as a waste heat recovery system. AbstractA theoretical investigation has been performed on the feasibility of introducing a waste heat recovery (WHR) system in a two-stage turbocharged HDD engine. The WHR is attained by introducing a Rankine cycle, which uses an organic substance or directly water as a working fluid depending on energetic performance considerations. A previous research was carried out to evaluate the maximum potential of this WHR concept, a conventional layout was used for coupling the Rankine cycle to the thermal engine. The objective of the present research is to broad the scope of the previous analysis by considering new alternative solutions for the problems related to the coupling between the WHR Rankine cycle and the thermal engine. These solutions are based on adapting one of the turbochargers by removing its turbine and trying to recover the energy by the Rankine cycle. Finally, the turbine of the Rankine cycle supplies the recovered energy directly to the compressor of this turbocharger. Thus, in these layouts the coupling is simpler as it involves only two turbomachines, which are supposed to share a similar rotating speed. From the results of the global energy balance, these alternative layouts produce slight benefits in fuel consumption but in all cases these benefits are lower compared to those attained with conventional layouts.

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Analysis of a SuperTurbocharged Downsized Engine Using 1-D CFD Simulation

Cited by 24 publications

References 5 publications

Improving the environmental performance of heavy-duty vehicles and engines: particular technologies

Improving the environmental performance of heavy-duty vehicles and engines: particular technologies

Electric Boosting and Energy Recovery Systems for Engine Downsizing

HD Diesel engine equipped with a bottoming Rankine cycle as a waste heat recovery system. Part 2: Evaluation of alternative solutions

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