Evaluation of Heat Transfer Effects on Turbocharger Performance

Sirakov, Borislav T.; Casey, Michael

doi:10.1115/1.4006608

Cited by 54 publications

(25 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some authors have studied the phenomena experimentally, both in a gas stand [4] and in an engine test bench [5], while other studies are theoretical [6]. The gas stand tests aim to decouple the turbocharger phenomena from the 15 ones associated to the engine.…”

mentioning

confidence: 99%

Turbocharger heat transfer and mechanical losses influence in predicting engines performance by using one-dimensional simulation codes

Serrano

Olmeda

Arnau

et al. 2015

Energy

View full text Add to dashboard Cite

ElsevierSerrano Cruz, JR.; Olmeda González, PC.; Arnau Martínez, FJ.; Smith, L. (2015). Turbocharger heat transfer and mechanical losses influence in predicting engines performance by using one-dimensional simulation codes. Energy. 86:204-218. doi:10.1016Energy. 86:204-218. doi:10. /j.energy.2015 Turbocharger heat transfer and mechanical losses influence in predicting engines performance by using one-dimensional simulation codes

show abstract

mentioning

confidence: 99%

Turbocharger heat transfer and mechanical losses influence in predicting engines performance by using one-dimensional simulation codes

Serrano

Olmeda

Arnau

et al. 2015

Energy

View full text Add to dashboard Cite

show abstract

“…13 The temperature of the solid domain and pressure at the interfaces are then imported to subsequent structural analysis as boundary conditions.…”

Section: Conjugate Convective Heat Transfer Analysismentioning

confidence: 99%

Effect of temperature and pressure on stress of impeller in axial-centrifugal combined compressor

Zheng

Ding

2016

Advances in Mechanical Engineering

View full text Add to dashboard Cite

Axial-centrifugal combined compressors are commonly used, and the stresses of their impeller are important and influenced by temperature and pressure. The effects of temperature and pressure on the stresses of the impeller with different inlet conditions are investigated. Conjugate heat transfer analysis and three-dimensional structural finite element analysis are used to get the stresses of the impeller. The effects of temperature and pressure are obtained by comparing the equivalent (Von-Mises) stresses between cases taking and not taking them into account. From the result, the temperature effect is surprisingly large for low inlet temperature, reaching 57% of the total equivalent stress, and should be carefully considered. The effect strongly relates with the inlet conditions and the disk thermal boundary conditions. Thus, the later can't be treated as adiabatic as usual. For certain inlet conditions, the stress of the impeller can be improved by adjusting the disk thermal boundary conditions. In addition, the temperature mainly affects the stress on the disk and the root of the blade. The pressure effect is small for low inlet temperature and can be sufficiently large for high inlet temperature. Furthermore, the pressure mainly influences the stress on the blade part and can reduce the stresses at the inducer of a negative-lean impeller.

show abstract

“…The motivation for this is that, while η c presented in a map is largely affected by heat transfer, the flow/pressure-behavior is insensitive to changes in heat transfer, see e.g. Shaaban (2004), Cormerais, Hetet, Chesse, and Maiboom (2006), Casey and Fesich (2009), and Sirakov and Casey (2011). Thus, a detailed heat transfer modeling effort is avoided.…”

Section: Ellipse Compressorπ àModelmentioning

confidence: 99%

A surge and choke capable compressor flow model—Validation and extrapolation capability

Leufvén

Eriksson

2013

Control Engineering Practice

View full text Add to dashboard Cite

a b s t r a c tIncreasingly stringent emissions legislation combined with consumer performance demand has created the need for complex automotive engines. The control of this complex system relies heavily on control oriented models. Models capable of describing all operating modes of the systems are beneficial, and the models should be easily parametrized and enable extrapolation. A large database of automotive compressor maps is characterized, and used to develop, validate and automatically parametrize a compressor flow model capable of describing reversed flow, normal operation and choke. Measurement data from both an engine test stand and a surge test stand is used to parametrize and validate the surge capability of the model. The model is shown to describe all modes of operation with good performance, and also to be able to extrapolate to small turbo speeds. The extrapolation capability is important, since compressor maps are shown to lack information for low speeds, even though they frequently operate there in an engine installation.

show abstract

Evaluation of Heat Transfer Effects on Turbocharger Performance

Cited by 54 publications

References 4 publications

Turbocharger heat transfer and mechanical losses influence in predicting engines performance by using one-dimensional simulation codes

Turbocharger heat transfer and mechanical losses influence in predicting engines performance by using one-dimensional simulation codes

Effect of temperature and pressure on stress of impeller in axial-centrifugal combined compressor

A surge and choke capable compressor flow model—Validation and extrapolation capability

Contact Info

Product

Resources

About