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Listar por autor "Samala, Vishnu"

Mostrando ítems 1-9 de 9

A holistic methodology to correct heat transfer and bearing friction losses from hot turbocharger maps in order to obtain adiabatic efficiency of the turbomachinery

Serrano, J.R.; Olmeda, P.; Arnau Martínez, Francisco José; Samala, Vishnu (SAGE Publications, 2020-10)

[EN] Turbocharger performance maps provided by manufacturers are usually far from the assumption of reproducing the isentropic performance. The reason being, those maps are usually measured using a hot gas stand. The ...
A Robust Adiabatic Model for a Quasi-Steady Prediction of Far-Off Non-Measured Performance in Vaneless Twin-Entry or Dual-Volute Radial Turbines

Serrano, J.R.; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Samala, Vishnu (MDPI AG, 2020-03)

[EN] The current investigation describes in detail a mass flow oriented model for extrapolation of reduced mass flow and adiabatic efficiency of double entry radial inflow turbines under any unequal and partial flow admission ...
An Experimental and Modeling Strategy for Obtaining Complete Characteristic Maps of Dual-Volute Radial Inflow Turbines

Serrano, J.R.; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Samala, Vishnu; Guilain, Stephane; Batard, Samuel (ASME International, 2021-07-01)

[EN] Despite the importance of turbocharged engines with dual-volute turbines, their characteristic maps and fully predictive modeling using 1D gas dynamic codes are not well established yet. The complexity of unsteady ...
Análisis térmico y fluido-dinámico de un turbogrupo ensayado y modelado con flujo a 1000ºC aguas arriba de su turbina de doble entrada

Samala, Vishnu (Universitat Politècnica de València, 2017-07-27)

In the TFM the test of a turbocharger with double entry turbine in real conditions of operation, as for the temperature at the entrance of the turbine, will be realized. The turbine is double-entry, typical of the spark ...
Boosting the capabilities of gas stand data acquisition and control systems by using a digital twin based on a holistic turbocharger model

Serrano, J.R.; García-Cuevas González, Luis Miguel; Samala, Vishnu; López-Carrillo, Juan Antonio; Mai, Holger (American Society of Mechanical Engineers (ASME), 2021-10-15)

[EN] During the last decade, increasingly advanced turbocharger models have been developed for sizing, engine matching and one-dimensional modeling. This work goes further and, instead of using these models for turbocharged ...
Evaluation of a Double-Entry Turbine Model Coupled With a One-Dimensional Calibrated Engine Model at Engine Full Load Curves

Galindo, José; Serrano, J.R.; De La Morena, Joaquín; Samala, Vishnu; Guilain, Stephane; Batard, Samuel (Frontiers Media SA, 2021-02-10)

[EN] Turbocharging is one of the foremost ways of engine downsizing and represents the leading technology for reducing the engine CO2 emission standards in gasoline engine application. Turbocharger turbine always faces ...
Experimental approach for the characterization and performance analysis of twin entry radial-inflow turbines in a gas stand and with different flow admission conditions

Serrano, J.R.; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Samala, Vishnu; Smith, Les (Elsevier, 2019-08)

[EN] In an internal combustion engine, twin entry turbine operates under different unequal admission conditions by feeding the turbine with a dissimilar amount of flow in each entry for a majority of the time. Despite of ...
Experimental characterization and mean line modelling of twin-entry and dual-volute turbines working under different admission conditions with steady flow

Samala, Vishnu (Universitat Politècnica de València, 2020-10-29)

[ES] A pesar de la importancia de las turbinas radiales de doble entrada y doble voluta en el flujo para motores turboalimentados, sus mapas característicos y su modelado totalmente predictivo utilizando códigos dinámicos ...
Experimental procedure for the characterization of turbocharger s waste-gate discharge coefficient

Serrano, J.R.; Arnau Martínez, Francisco José; Tiseira ., Andrés Omar; Samala, Vishnu (SAGE Publications, 2017)

[EN] Nowadays, the turbocharger has become one of the key components for automotive spark-ignition engine improvements (fed with both liquid and gaseous fuels), as a support for the boosting and downsizing concept to ...