Turbocharger Selection and Matching Criteria in a Heavy Duty Diesel Engine

Emara, Kareem; Emara, Ahmed; Razek, El Sayed Abdel

doi:10.14299/ijser.2016.12.009

Cited by 10 publications

(6 citation statements)

References 6 publications

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“…Contrarily to DBs created by Sanaye et al 14 and Emara et al 41 the actual one contains around 500 different types of TCs obtained from several manufacturers' open sources [42][43][44] and covering a large mass flow and pressure ratio ranges; from 0.041 to 1.46 kg, and from 0.26 to 3.74, respectively. The main difficulties encountered during the DB construction were due to the lack of information.…”

Section: Database Constructionmentioning

confidence: 99%

An approach to select an appropriate turbocharger for matching with an internal combustion engine

Hameur

Sehili

Cerdoun

et al. 2022

International Journal of Engine Research

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The present paper proposes a novel methodology of turbocharging automotive engines to reach targeted performance. The actual method is tested and validated against simulation test results of two turbocharged diesel engines; engine I, three cylinders, 1.5 L, and engine II, six cylinders, 5.9 L. The present procedure is subdivided into four key parts; namely, database construction, selection procedure, turbocharger preliminary design, and engine modeling. Based on geometric dimensions and aerodynamic parameters provided by the preliminary design procedure, 3D geometries of the turbine and compressor are generated for each studied engine. After integrating previous data into a constructed turbocharger database, two turbochargers are selected for the engine I, while only one turbocharger for the engine II. The findings show that, at the engine speed of 4000 rpm, engine I matched with the adequate turbocharger reached a target power about 2.7%, compared to the original turbocharger equipping engine I. Furthermore, engine II reached a rated power of 299.3 kW at 2500 rpm which is slightly under the original one by 2.64 kW. The superimposition of the engine operating area on compressor and turbine maps provided satisfactory results in terms of turbocharger-engine output performance, fuel consumption, secure functioning and engine thermal strength. Finally, the main advantage of the developed methodology consists of its ability to be applied at both earlier and last stages of the engine turbocharging process or to find new adequate turbochargers to replace the original one for economic, mechanical or for safety reasons.

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Section: Database Constructionmentioning

confidence: 99%

An approach to select an appropriate turbocharger for matching with an internal combustion engine

Hameur

Sehili

Cerdoun

et al. 2022

International Journal of Engine Research

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“…The engine main characteristics are experimentally measured at different speeds and loads, especially at the conditions of the maximum torque and power output with and without increasing the boost pressure (basic and upgraded engine) [18][19][20][21]. The main features of the engine and the connecting rod are listed in Table 1.…”

Section: Engine Specificationmentioning

confidence: 99%

Enhancing the Durability of Connecting Rod of a Heavy-Duty Diesel Engine

Ismail¹,

Abdelrazek²,

Ismail³

et al. 2021

IJAME

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This paper investigates the mechanical loads resulting from the combustion pressure and dynamic inertia and their effects on the connecting rod of a direct injection turbocharged diesel engine. The main purpose is to enhance the durability of the connecting rod in order to withstand more engine power increase. The distribution of the axial (compressive/tensile) stress, deformation, and safety factors are calculated in order to predict any possible mechanical failure. The finite element routine is used by ANSYS Workbench to analyse the loading on the connecting rod model. The current study is applied to the connecting rod of a 300 hp diesel engine in order to increase the engine power by 17%. The connecting rod operates safely and withstands the applied loads until the power increase reaches 72%. The most stressed points are at the connecting rod shank, while less stressed are experienced at the big end. Calculations show that introducing some changes to the connecting rod geometry may result in decreasing the excessive stresses. These changes include increasing the thickness of the shank cross-section, increasing the fillets radii and slightly reducing the dimensions of the big end in order to maintain the same mass. The new geometry could significantly reduce the maximum stress by 25.5% with an insignificant reduction in the total mass of the connecting rod.

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“…Ideally, Journal of Engineering for Gas Turbines and Power GTP-20-1402 6 Ntonas the turbo-components operating nominal points should be in high efficiency area. In addition compressor operating line distance from surge line must be as large as possible [15]. The degree of fulfilling these criteria is indicative of matching quality.…”

Section: Turbocharger Retrofitting Platformmentioning

confidence: 99%

A Marine Turbocharger Retrofitting Platform

Ntonas

Aretakis

Roumeliotis

et al. 2020

Journal of Engineering for Gas Turbines and Power

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A turbocharger retrofitting platform utilizing one-dimensional (1D) models for calculating turbomachinery components map and a fully coupled process for integration with the turbomachinery components and the diesel engine, is presented. The platform has been developed with two modes of operation, allowing the retrofitting process to become fully automatic. In the first mode, available turbocomponents are examined, in order to select the one that best matches the entire engine system, aiming to retain or improve the diesel engine efficiency. In the second mode, an optimization procedure is employed, in order to redesign the compressor to match the entire system in an optimum way. Dimensionless parameters are used as optimization variables, for a given compressor mass flow and power. A retrofitting case study is presented, where three retrofitting options are analyzed (compressor retrofit, turbocharger retrofit, and compressor redesign). In the first and second option, turbocharger retrofitting is carried out, using available turbocomponents. It is shown that initial performance cannot be reconstituted using off-the-self-solutions. In the third option, compressor designing is performed, using the optimization mode, in order to provide an improved retrofitting solution, aiming to at least reconstituting the original diesel engine performance. Finally, a CFD analysis is carried out, in order to validate the compressor optimization tool capability to capture the performance trends, based on geometry variation.

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Turbocharger Selection and Matching Criteria in a Heavy Duty Diesel Engine

Cited by 10 publications

References 6 publications

An approach to select an appropriate turbocharger for matching with an internal combustion engine

An approach to select an appropriate turbocharger for matching with an internal combustion engine

Enhancing the Durability of Connecting Rod of a Heavy-Duty Diesel Engine

A Marine Turbocharger Retrofitting Platform

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