Relevant bibliographies by topics / Turbocharged engine

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Turbocharged engine'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "Turbocharged engine"

1

Korakianitis, Theodosios, and T. Sadoi. "Turbocharger-Design Effects on Gasoline-Engine Performance." Journal of Engineering for Gas Turbines and Power 127, no. 3 (June 24, 2005): 525–30. http://dx.doi.org/10.1115/1.1808428.

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Specification of a turbocharger for a given engine involves matching the turbocharger performance characteristics with those of the piston engine. Theoretical considerations of matching turbocharger pressure ratio and mass flow with engine mass flow and power permits designers to approach a series of potential turbochargers suitable for the engine. Ultimately, the final choice among several candidate turbochargers is made by tests. In this paper two types of steady-flow experiments are used to match three different turbochargers to an automotive turbocharged-intercooled gasoline engine. The first set of tests measures the steady-flow performance of the compressors and turbines of the three turbochargers. The second set of tests measures the steady-flow design-point and off-design-point engine performance with each turbocharger. The test results show the design-point and off-design-point performance of the overall thermodynamic cycle, and this is used to identify which turbocharger is suitable for different types of engine duties.
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Benajes, J., J. M. Luján, V. Bermúdez, and J. R. Serrano. "Modelling of turbocharged diesel engines in transient operation. Part 1: Insight into the relevant physical phenomena." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 216, no. 5 (May 1, 2002): 431–41. http://dx.doi.org/10.1243/0954407021529237.

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A new calculation model, able to predict the engine performance during an engine transient, has been developed, based on an existing wave action code. Previously to the model development, the turbocharged diesel engine's transient phenomena (turbocharger lag, thermal transient and energy transport delay) were deeply analysed on the basis of experimental information. The study has been focused on the load transient, i.e. torque increase from idle, at constant engine speed of a high speed direct injection (DI) turbocharged engine. Experimental load transient tests have been performed, with the aim of obtaining a combustion database during engine transient operation, to input into a combustion simulation submodel. The applied methodology allows the characterization of the transient combustion process in any DI turbocharged engine.
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Katrašnik, Tomaž, Ferdinand Trenc, Vladimir Medica, and Stojan Markič. "An Analysis of Turbocharged Diesel Engine Dynamic Response Improvement by Electric Assisting Systems." Journal of Engineering for Gas Turbines and Power 127, no. 4 (July 23, 2004): 918–26. http://dx.doi.org/10.1115/1.1924533.

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It is well known that turbocharged diesel engines suffer from an inadequate response to sudden load increase, this being a consequence of the nature of the energy exchange between the engine and the turbocharger. The dynamic response of turbocharged diesel engines could be improved by electric assisting systems, either by direct energy supply with an integrated starter-generator-booster (ISG) mounted on the engine flywheel, or indirect energy supply with an electrically assisted turbocharger. A previously verified zero dimensional computer simulation method was used for the analysis of both types of electrical assistance. The credibility of the data presented is further assured by the experimentally determined characteristics of the electric motors used as input parameters of the simulation. The paper offers an analysis of the interaction between a turbocharged diesel engine operating under various load conditions and electric assisting systems, as well as the requirements for supporting electric motors suitable for the improvement of an engine’s dynamic response. It is evident that an electrically assisted turbocharger outperforms an integrated starter-generator-booster for vehicle application, however ISG is the preferred solution when instant power increase is demanded.
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Fang, Yan Kai, and Limin Chen. "Performance Analysis on Electrical Aided Turbocharged System." Applied Mechanics and Materials 34-35 (October 2010): 1946–50. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1946.

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A turbocharger is fitted to a diesel in order to enhance the inlet charge pressure, hence increasing the fresh air in the cylinder, then more fuel can be injected into the cylinder and sequentially more engine power can put out. The electrical aided turbocharged system is a mechanism adding a high speed electronic motor into a turbocharger shaft. The electronic motor can work as a motor to drive the turbocharger shaft and as a generator to generate electricity energy to storage energy. According to certain constraint conditions, the controlling strategy of the hybrid turbocharged system is presented. The simulation results about key work points reveal that controlling the turbocharged engine following the strategy can enhance the engine performance.
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Justin Dhiraviam, F., V. Naveen Prabhu, T. Suresh, and C. Selva Senthil Prabhu. "Improved Efficiency in Engine Cooling System by Repositioning of Turbo Inter Cooler." Applied Mechanics and Materials 787 (August 2015): 792–96. http://dx.doi.org/10.4028/www.scientific.net/amm.787.792.

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Turbochargers are an integral part of today’s modern diesel engines and are a major reason that they are able to produce more power. Unlike a super charger that is driven via a belt from the engine, a turbo takes the exhaust that the engine is producing and puts it to good use. As Turbochargers are driven by exhaust, heat is an unwelcome by product and something that wasn’t really taken into account in automobiles. Then those intercoolers started to come into play in turbocharged automobiles. The forced air produced by the turbocharger is routed through the intercooler where its temperature is reduced before reaching the engine. The use of intercoolers has made turbocharged vehicles far more reliable and, in the case of today’s heavy duty diesel trucks, is a very important component. The inlet air of an IC engine from turbocharger temperature is very much high (due to compression) means oxygen content is very much less. And also air with high temperature causes pre-ignition and detonation. So fuel combustion does not take place properly. Inter Cooling of inlet air is very much essential according to performance point of view. Turbo intercoolers are used for cooling the inlet air of an IC engine from turbo chargers. Moreover cooling of air makes it denser and contributes for better combustion and more power they are mounted close to the radiators for achieving lower air temperature. This arrangement affects the performance of both. So in this project an attempt will be made to increase the efficiency of the turbo intercooler arrangement through design modification and repositioning of intercooler by taking the TATA MARCOPOLO-Star Bus 909 as a reference.
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Tauzia, X., J. F. Hetet, P. Chesse, G. Crosshans, and L. Mouillard. "Computer aided study of the transient performances of a highly rated sequentially turbocharged marine diesel engine." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 212, no. 3 (May 1, 1998): 185–96. http://dx.doi.org/10.1243/0957650981536853.

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The sequential turbocharging technique described in this paper leads to an improvement in the operations of highly rated diesel engines, in particular at part loads (better air admission). However, transient phases such as a switch from one turbocharger to two turbochargers can be difficult, mainly because of the inertia of the turbochargers. In order to simulate the dynamics of turbocharged diesel engines, the SELENDIA software has been extended. When applied to two different engines (12 and 16 cylinders), the program shows good agreement with the experimental data. Moreover, the compressor surge has been investigated during faulty switch processes. The software has then been used for predictive studies to evaluate the possibility of adapting sequential turbocharging to a 20-cylinder engine and to calibrate the optimum switching conditions (air and gas valve opening timing).
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Khodaparast, Mohammad Reza, Mohsen Agha Seyed Mirza Bozorg, and Saeid Kheradmand. "Keeping twin turbocharged engine power at flight altitudes." Aircraft Engineering and Aerospace Technology 90, no. 6 (September 3, 2018): 906–13. http://dx.doi.org/10.1108/aeat-11-2016-0200.

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Purpose The purpose of this paper is the selection and arrangement of turbochargers set for internal combustion engine which could keep engine power in an altitude of up to 12.2 km above sea level. Design/methodology/approach In the current research, the target engine, a one-dimensional four-stroke 1,600 cc piston engine has been simulated and the manufacturer’ results have been validated. Depending on engine size, three proper types of Garret turbochargers GT30, GT25 and GT20 were selected for this engine. Then, the engine and a combination of two turbochargers have been modeled one-dimensionally. A control system was used for regulation of different pressure ratios between the two turbochargers. Findings The parametric analysis shows that using the combination of GT20, GT30 turbochargers with a properly controlled pressure ratio leads to a constant output power with little changes at different altitudes which enable achieving an altitude of 12.2 km for the target engine. Practical implications Adaptation of the internal combustion engine with a twin turbocharger using one-dimensional modeling. Originality/value The one-dimensional analysis provided an overall picture of the effective performance of turbochargers functioning in different altitudes and loads. It presents a new method for adopting of turbochargers set with internal combustion engines for propulsion medium-altitude aircraft.
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Özgür, Tayfun, and Kadir Aydın. "Analysis of Engine Performance Parameters of Electrically Assisted Turbocharged Diesel Engine." Applied Mechanics and Materials 799-800 (October 2015): 861–64. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.861.

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Charging system is used to increase the charge density. Supercharging system suffers from fuel consumption penalty because of compressor powered by engine output. Turbocharging system uses wasted exhaust energy that means compressor powered by exhaust turbine but has a turbo lag problem. The electrically assisted turbocharger which can eliminate turbo lag problem and fuel consumption penalty is the topic of this paper. The purpose of this paper is to analyze the effect of electrically assisted turbocharger on diesel engine performance parameters. The AVL Boost software program was used to simulate the electrically assisted turbocharged diesel engine. Simulations results showed that electrically assisted turbocharger increases low end torque and improves fuel economy.
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Alshammari, Mamdouh, Nikolaos Xypolitas, and Apostolos Pesyridis. "Modelling of Electrically-Assisted Turbocharger Compressor Performance." Energies 12, no. 6 (March 13, 2019): 975. http://dx.doi.org/10.3390/en12060975.

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For the purposes of design of a turbocharger centrifugal compressor, a one-dimensional modelling method has been developed and applied specifically to electrically-assisted turbochargers (EAT). For this purpose, a mix of authoritative loss models was applied to determine the compressor losses. Furthermore, an engine equipped with an electrically-assisted turbocharger was modelled using commercial engine simulation software (GT-Power) to assess the performance of the engine equipped with the designed compressor. A commercial 1.5 L gasoline, in-line, 3-cylinder engine was selected for modeling. In addition, the simulations have been performed for an engine speed range between 1000 and 5000 rpm. The design target was an electric turbocharger compressor that could meet the boosting requirements of the engine with noticeable improvement in a transient response. The results from the simulations indicated that the EAT improved the overall performance of the engine when compared to the equivalent conventional turbocharged engine model. Moreover, the electrically-assisted turbochargers (EAT) equipped engine with power outputs of 1 kW and 5 kW EAT was increased by an average of 5.96% and 15.4%, respectively. This ranged from 1000 rpm to 3000 rpm engine speed. For the EAT model of 1 kW and 5 kW, the overall net reduction of the BSFC was 0.53% and 1.45%, respectively, from the initial baseline engine model.
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Sajedin, Azadeh, Seyed Ali Jazayeri, Mahdi Ahmadi, and Omid Farhangian Marandi. "Enhancing the Starting Torque of Turbocharged SI Engine Using 1-D CFD Simulation." Applied Mechanics and Materials 110-116 (October 2011): 4919–24. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.4919.

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Turbo lag and low starting torque is the challenges of turbochargers. These challenges can be met with the implementation of an additional boosting device which can significantly boost the starting torque of the engine. the goal of this study is to show how the steady-state performance of a turbocharged SI engine can be improved by supercharging turbocharged engine. A one dimensional model for a turbocharged V type, four cylinder CNG engine has been developed and studied in detail using GT-POWER software. For validation purposes the model results are compared with experimental data available where acceptable results with good accuracy has been observed.
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Dissertations / Theses on the topic "Turbocharged engine"

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Westin, Fredrik. "Accuracy of turbocharged SI-engine simulations." Licentiate thesis, KTH, Machine Design, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1491.

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This licentiate thesis deals mainly with modelling ofturbocharged SIengines. A model of a 4-cylinder engine was runin both steady state and transient conditions and the resultswere compared to measured data. Large differences betweenmeasurements and simulations were detected and the reasons forthis discrepancy were investigated. The investigation showedthat it was the turbocharger turbine model that performed in anon-optimal way. To cope with this, the turbine model containedparameters, which could be adjusted so that the model resultsmatched measured data. However, it was absolutely necessary tohave measured data to match against. It was thus concluded thatthe predictivity of the software tool was too poor to try topredict the performance of various boosting systems. Thereforemeans of improving the modelling procedure were investigated.To enable such an investigation a technique was developed tomeasure the instantaneous power output from, and efficiency of,the turbine when the turbocharger was used on the engine.

The project’s initial aim was to predict, throughsimulations, the best way to boost a downsized SI-engine with avery high boost-pressure demand. The first simulation run on astandard turbocharged engine showed that this could not be donewith any high accuracy. However, a literature study was madethat presents various different boosting techniques that canproduce higher boost pressure in a larger flow-range than asingle turbocharger, and in addition, with smallerboost-pressure lag.

Key words:boosting, turbocharging, supercharging,modelling, simulation, turbine, pulsating flow, unsteadyperformance, SI-engine, measurement accuracy

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Kristoffersson, Ida. "Model Predictive Control of a Turbocharged Engine." Thesis, KTH, Reglerteknik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-107508.

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Engine control becomes increasingly important in newer cars. It is therefore interesting to investigate if a relatively new control method as Model Predictive Control (MPC) can be useful in engine control in the future. One of the advantages of MPC is that it can handle contraints explicitly. In this thesis basics on turbocharged engines and the underlying theory of MPC is presented. Based on a nonlinear mean value engine model, linearized at multiple operating points, we then implement both a linear and a nonlinearMPC strategy and highlight implementation issues. The implemented MPC controllers calculate optimal wastegate position in order to track a requested torque curve and still make sure that the constraints on turbocharger speed and minimum and maximum opening of the wastegate are fulfilled.
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Jo, Young Suk. "Turbocharged engine operations using knock resistant fuel blends for engine efficiency improvements." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81606.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 61).
Engine downsizing with a turbocharger has become popular these days in automotive industries. Downsizing the engine lets the engine operate in a more efficient region, and the engine boosting compensates for the power loss accompanied by downsizing. However, the use of high boost in a downsized engine is limited by knock. Changing operating parameters such as spark timing has shown to be effective in avoiding knock. However, those strategies usually deteriorate efficiency of the engine. Another method to suppress knock without lowering efficiency is to use knock resistant fuels. Among them ethanol has gotten a large attention due to its renewable characteristics. About 13.3 billion gallons of ethanol were produced in 2012, and about 99 % of them are used as fuel added to gasoline. However, the optimal use of ethanol in a spark ignited engine as a knock suppressing additive is not well quantified. Also, operation limitations of a knock free engine are not well known. The objective of this project was to determine the knock onset engine operating conditions and to explore the potential of a direct injection of ethanol enhanced fuels. An engine with a turbocharger was used to measure efficiencies of the engine over the wide range of operating points. Speed range was chosen from 1500 rpm to 3000 rpm in which vehicle is usually driven in the driving cycle. Then, knock onset of different ethanol-gasoline blends, from 0 % ethanol to 85 % ethanol contents with 91 RON gasoline, were determined. Generated engine fuel consumption maps with knock onset limits were utilized in a vehicle driving simulation tool. In a simulation, the consumption of gasoline and knock suppressing fuels was determined in different driving cycles. Finally, effects of downsizig and spark retard on ethanol fraction in the fuel were determined.
by Young Suk Jo.
S.M.
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Renberg, Ulrica. "1D engine simulation of a turbocharged SI engine with CFD computation on components." Licentiate thesis, KTH, Machine Design (Div.), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9162.

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1D engine simulations of turbocharged engines are difficult to

Techniques that can increase the SI- engine efficiency while keeping the emissions very low is to reduce the engine displacement volume combined with a charging system. Advanced systems are needed for an effective boosting of the engine and today 1D engine simulation tools are often used for their optimization.

This thesis concerns 1D engine simulation of a turbocharged SI engine and the introduction of CFD computations on components as a way to assess inaccuracies in the 1D model.

1D engine simulations have been performed on a turbocharged SI engine and the results have been validated by on-engine measurements in test cell. The operating points considered have been in the engine’s low speed and load region, with the turbocharger’s waste-gate closed.

The instantaneous on-engine turbine efficiency was calculated for two different turbochargers based on high frequency measurements in test cell. Unfortunately the instantaneous mass flow rates and temperatures directly upstream and downstream of the turbine could not be measured and simulated values from the calibrated engine model were used. The on-engine turbine efficiency was compared with the efficiency computed by the 1D code using steady flow data to describe the turbine performance.

The results show that the on-engine turbine efficiency shows a hysteretic effect over the exhaust pulse so that the discrepancy between measured and quasi-steady values increases for decreasing mass flow rate after a pulse peak.

Flow modeling in pipe geometries that can be representative to those of an exhaust manifold, single bent pipes and double bent pipes and also the outer runners of an exhaust manifold, have been computed in both 1D and 3D under steady and pulsating flow conditions. The results have been compared in terms of pressure losses.

The results show that calculated pressure gradient for a straight pipe under steady flow is similar using either 1D or 3D computations. The calculated pressure drop over a bend is clearly higher1D engine simulations of turbocharged engines are difficult to using 1D computations compared to 3D computations, both for steady and pulsating flow. Also, the slow decay of the secondary flow structure that develops over a bend, gives a higher pressure gradient in the 3D calculations compared to the 1D calculation in the straight pipe parts downstream of a bend.

 

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Chan, Siew Hwa. "Transient performance of turbocharged vehicle diesel engines." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/46707.

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Rezaeian, M. "Modelling of engine transmission systems for heavy vehicles : the differential compound engine versus the turbocharged engine." Thesis, University of Bath, 1988. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.484306.

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Roberts, Stefan Ross. "Non-intrusive knock detection in a turbocharged, dual fuel engine." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq22664.pdf.

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Ren, Zizhong. "Theoretical and experimental study on sequentially turbocharged diesel engine performance." Thesis, Glasgow Caledonian University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388308.

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An investigation on the sequential turbocharging of a Kelvin TFSC6 6-cylinder 4- stroke marine diesel engine developing 320 kW at 1200 r/min is reported in this thesis. The sequential turbocharging (ST) system, utilising turbochargers of unequal size, resulted in significant improvement when compared with previously designed systems. The engine test results show that the new sequential turbocharging system improves the engine performance at both high speeds and low speeds except at or near to the 'transfer' speed. The engine low speed performance is obviously improved with the fuel saving of up to 7 g/kwh for the 1st sequence. The engine high speed performance is also improved for the 2nd sequence where both turbochargers are in operation. There is some boost air leakage from the delivery pipe which is used for connecting the peak unit to the intercooler inlet. This restricts the 2nd sequence gains. An optimised sequence transfer control mode is also proposed in this research and validated by both test and simulation results. Two control valves, one at the peak unit turbine inlet and the other at the compressor outlet, are specifically designed for the ST system and both of them worked very well during the engine test programme. Both simulation models - "Filling& Emptying" and "Method of Characteristic" were modified and used for the sequential turbocharging simulation. The modified program of the "Filling& Emptying" model can be used to analyse and compare the effects of different exhaust systems. It can also be applied to simulate and design a pulse converter system for a sequential turbocharged diesel engine. The modification on the "MOC" program makes it possible to simulate the exhaust pressure wave for the ST system with different turbocharger arrangements (concentrated or separated). The consideration of pressure losses in the 'three branch junction' boundary improves the simulation accuracy. In addition, a comprehensive engine test data acquisition and control system has been developed in this study. The advanced system with many new features can be used for engine condition monitoring. diagnosis and other similar applications for engine development and test. The efficiency and reliability of the system have been corroborated by the engine test process. The real time data process, analysis and display in various forms are available using the developed program with 'LabVIEW'. The proposed self-adaptive auto-load setting with optimised parameters is validated as an economic solution for engine load control with an early type of hydraulic dynamometer.
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McCoy, Colleen (Colleen M. ). "Fuel economy of a turbocharged, single-cylinder, four-stroke engine." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112556.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 56-57).
Agriculture is the main source of livelihood for a majority of India's population. However, despite the number of workers, the yield and the yield of principal crops in India is much lower than that in developed nations. One of the reasons for this is the lack of farming mechanization in India. One of the common ways to run farming equipment is by using a single-cylinder, four-stroke diesel engine. Diesel engines can be turbocharged in order to make them more efficient for less cost. A method has been found to turbocharge a single-cylinder diesel engine by adding an air capacitor to form a buffer between the intake and exhaust strokes. This thesis analyzes how the size and heat transfer of the air capacitor for this turbocharged diesel engine are correlated to engine performance and fuel economy. According to the modeled engine, a 3.0 liter capacitor had better peak power and fuel economy at high loads and speeds than a 2.4 or 1.25 liter capacitor. Additionally, forced convection cooling on the capacitor using a fan allowed the intake air density to increase, and the engine to have better fuel economy than the . However the peak power and fuel economy of the modeled naturally aspirated engine was better than the turbocharged engine for speeds below 2500 rpm. The general trends from the model were reflected in the experimental data. The forced convection increased cooling, and improved the intake air density. However, it was difficult to make any confident recommendations about the fuel economy based on the experimental data.
by Colleen McCoy.
S.B.
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Ghazy, Mohamed Riad Aly. "Exciting forces and their relationship to turbocharged diesel engine vibration." Thesis, University of Southampton, 1986. https://eprints.soton.ac.uk/52293/.

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The work presented here quantifies the forces applied to the main bearings of three six-cylinder turbocharged diesel engines and reviews their exciting properties in both time and frequency domains. The engine structure response at the bearing supports and the outer surfaces are correlated. Vibration acceleration was measured, in the three different directions, at the engine main bearings and the outer surface. The liner vibrations were also measured. A theoretical model for calculating the bearing forces and estimating the bearing moment characteristics is proposed. The calculated bearing forces are investigated in both time and frequency domains. The characteristics of the forces driving the piston across the cylinder clearance are calculated. The characteristics of the forces acting on the liner by the piston are also calculated. Combining the results of the measurements with the theoretical model for force calculation, a technique for estimating the actual running clearance of the piston is presented. A technique for deriving the displacement from the measured acceleration is developed. By representing the engine response in terms of displacement it is possible to recognise the applied force time history and thus the identification of the specific parts of the engine structure primarily excited by moments and by direct force. It is shown that the engine structure response is a transient phenomenon and is maximum in the vicinity of the applied force. The displacement technique for quantifying engine response provides detailed information of the distortion of the running engine enabling the prediction of mechanical inputs which control the turbocharged engine noise.
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Books on the topic "Turbocharged engine"

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Sardari, Pirous. Turbocharged lorry engine using methane and derv as fuels. Leicester: Leicester Polytechnic, 1986.

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Billings, S. A. The identification of linear and nonlinear models of a turbocharged atomotive diesel engine. Sheffield: University of Sheffield, Dept. of Control Engineering, 1988.

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Larsen, John F. Comparison of emissions and efficiency of a turbocharged lean-burn natural gas and hythane fuelled engine. Ottawa: National Library of Canada, 1994.

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Boretti, Alberto, ed. Advances in Turbocharged Racing Engines. Warrendale, PA: SAE International, 2019. http://dx.doi.org/10.4271/9780768000276.

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How to supercharge and turbocharge GM LS-Series engines. North Branch, MN: CarTech, 2010.

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Kächele, Andreas. Turbocharger Integration into Multidimensional Engine Simulations to Enable Transient Load Cases. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-28786-3.

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Turbo: Real world high-performance turbocharger systems. North Branch, MN: CarTech, 2008.

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Rivera, Gilbert D. Turbochargers to small turbojet engines for uninhabited aerial vehicles. Monterey, Calif: Naval Postgraduate School, 1998.

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Jai-In, S. Dynamics and control of turbocharged diesel engines: Ship propulsion plant ans automotive applications. Manchester: UMIST, 1990.

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International Conference on Turbochargers and Turbocharging (10th 2012 London). 10th International Conference on Turbochargers and Turbocharging: 15-16 May 2012, Savoy Place, London. Cambridge: Woodhead Publishing, 2012.

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Book chapters on the topic "Turbocharged engine"

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Stewart, Greg, Francesco Borrelli, Jaroslav Pekar, David Germann, Daniel Pachner, and Dejan Kihas. "Toward a Systematic Design for Turbocharged Engine Control." In Automotive Model Predictive Control, 211–30. London: Springer London, 2010. http://dx.doi.org/10.1007/978-1-84996-071-7_14.

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Zu, Xiang-huan, Chuan-lei Yang, He-chun Wang, and Yin-yan Wang. "An Optimized Method for Turbocharged Diesel Engine EGR Performance Evaluation." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 38–49. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73317-3_6.

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Li, Jun, Jincheng Li, Yanfeng Gong, Haie Chen, Meilan Qu, Jinyu Liu, Wei Li, et al. "Development of FAW 2.0 L Turbocharged Gasoline Direct Injection Engine." In Lecture Notes in Electrical Engineering, 259–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33841-0_20.

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Selmane, Fouad, Mohamed Djermouni, and Ahmed Ouadha. "Thermodynamic Study of a Turbocharged Diesel-Hydrogen Dual Fuel Marine Engine." In Springer Proceedings in Energy, 221–29. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6595-3_29.

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Liu, Qiang, Zhongchang Liu, Yongqiang Han, Jun Wang, and Zhou Yang. "Effect of Premix Combustion on Transient Performance of Turbocharged Diesel Engine." In Lecture Notes in Electrical Engineering, 1034–39. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3250-4_132.

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Wei, Hong, Lianbao Li, Lin Yang, Narendra Purania, Xuehai Qin, Huacheng Zhou, Dongya Chen, Xiaoli Tian, Yunlong Kuang, and Ruiping Wang. "LP EGR Influence on Performance of Turbocharged Direct Injection Gasoline Engine." In Lecture Notes in Electrical Engineering, 113–39. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8506-2_8.

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Liu, Qiang, Zhongchang Liu, Jing Tian, Yongqiang Han, Jun Wang, and Jian Fang. "Optimization of Control Strategy for Turbocharged Diesel Engine Under Transient Condition." In Lecture Notes in Electrical Engineering, 1093–99. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3648-5_138.

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Payri, F., J. Galindo, and J. R. Serrano. "Variable Geometry Turbine Modelling and Control for Turbocharged Diesel Engine Transient Operation." In Thermo- and Fluid-dynamic Processes in Diesel Engines, 189–209. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04925-9_11.

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Li, Gang, Ying Huang, Fujun Zhang, and Xiaoyan Dai. "Modeling on Torque Generation for Turbocharged Diesel Engine Based on Identification Method." In Lecture Notes in Electrical Engineering, 123–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33829-8_13.

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Luu, Do Duc, Nguyen Quang Vinh, and Bui Hong Duong. "Modeling and Simulating Working Processes of the Main Turbocharged Marine Diesel Engine." In Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020), 107–12. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69610-8_14.

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Conference papers on the topic "Turbocharged engine"

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Korakianitis, T., and T. Sadoi. "Turbocharger-Design Effects on Gasoline-Engine Performance." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-387.

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Specification of a turbocharger for a given engine involves matching the turbocharger performance characteristics with those of the piston engine. Theoretical considerations of matching turbocharger pressure ratio and mass flow with engine mass flow and power permits designers to approach a series of potential turbochargers suitable for the engine. Ultimately, the final choice among several candidate turbochargers is made by tests. In this paper two types of steady-flow experiments are used to match three different turbochargers to an automotive turbocharged-intercooled gasoline engine. The first set of tests measures the steady-flow performance of the compressors and turbines of the three turbochargers. The second set of tests measures the steady-flow design-point and off-design-point engine performance with each turbocharger. The test results show the design-point and off-design-point performance of the over-all thermodynamic cycle, and this is used to identify which turbocharger is suitable for different types of engine duties.
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Chen, Tao, Weilin Zhuge, Xinqian Zheng, Yangjun Zhang, and Yongsheng He. "Turbocharger Design for a 1.8 Liter Turbocharged Gasoline Engine Using an Integrated Method." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59951.

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Turbocharging is playing an increasingly vital role in the development of gasoline engines to reduce fuel consumption and CO2 emissions. Turbocharger design is a key technique used for improving the gasoline engine’s performance. In this study, a new turbocharger design method is proposed by integrating a turbocharger through-flow model with a gasoline engine model for better turbocharger matching. The integrated method was applied to design a new turbocharger according to the performance requirements of a 1.8L turbocharged gasoline engine. Compared to the original prototype, the engine with the new turbocharger designed with the integrated method can achieve a better power and torque curve with about a 4% reduction of fuel consumption at the rated engine speed.
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Shiraishi, Keiichi, and Venky Krishnan. "Electro-Assist Turbo for Marine Turbocharged Diesel Engines." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25667.

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Turbocharged diesel engines are widely used in the marine industry and have a significant impact on global CO2 and NOx emissions. Turbochargers are an integral component of any diesel engine and they play a critical role in their performance. Mitsubishi Heavy Industries (MHI) and Calnetix Technologies have developed a unique technology called the “Electro-Assist Turbo” (EAT). The EAT unit consists of a specially designed high speed permanent magnet motor directly mounted to the turbocharger rotating assembly. The high speed motor applies torque to the turbocharger rotor enabling it maintain or vary rotor speed at low engine exhaust flow rates in order to supply sufficient charge air to maximize engine performance. Turbocharged diesel engines suffer from inherent deficiencies at low engine speeds; there is not enough energy in the exhaust to produce an optimum and readily available level of boost for the engine intake air system at off-design points. This technology proves even more important as the majority of large marine vessels are now operating in a “slow steaming” part throttle mode. To date the majority of marine diesel engines use auxiliary air blowers (AAB) to supply additional air to the engine intake during off design point operation. These AABs are inefficient and not intended nor designed to be used in constant operation. The EAT unit can provide a higher discharge pressure at the same electrical power consumption as an AAB. This more efficient design with higher discharge pressure further improves fuel efficiency and eliminates the need to run an external piece of machinery during operation, thus lowering maintenance costs. This paper will provide an overview of the design, integration and initial testing of the 100kW Electro-Assist Turbo into a Mitsubishi Exhaust-gas Turbocharger (MET)-83 marine diesel turbocharger. In addition this paper will go over the custom designed aerodynamic motor housing structure that holds the non-rotating components without penalizing performance of the turbocharger, special software developed for the variable frequency drive system that enables the flexible operation of the high speed motor, and features of the high speed permanent magnet motor that allows for operation without any active cooling. Also, this paper will provide and discuss the initial test results of the EAT integrated into the MET-83 turbocharger along with engine testing results provided by MHI. Low cost designs will be discussed that enable turbochargers currently in operation to be retrofitted and the further improvements taking place to commercialize.
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Aghaali, Habib, and Hans-Erik Angstrom. "Improving Turbocharged Engine Simulation by Including Heat Transfer in the Turbocharger." In SAE 2012 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2012. http://dx.doi.org/10.4271/2012-01-0703.

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Chapman, Kirby S., Ali Keshavar, and Kyle Wolfram. "Increasing Turbocharged Engine Operating Ranges Through Use of a Booster System." In ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1806.

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In the natural gas industry a large portion of the engines used for compression are lean-burn engines. When these engines operate at low equivalence ratios, oxides of nitrogen (NOX) can be minimized. The lean-burn engines are turbocharged to deliver high air flow to the engine. However, varying ambient temperatures alter the mass flow rate of air delivered to the engine, changing the equivalence ratio the engine fires at. This may cause an engine to be de-rated, or taken off line reducing the gas throughput. This problem can be partially offset by the installation of a turbocharger booster system to increase the available energy at the turbocharger turbine inlet. One method to boost the energy available to drive the turbocharger is to increase the temperature of the exhaust before it enters the turbine via a relatively small dry low NOX burner. A turbocharger booster system was designed, prototyped, installed, and tested at the National Gas Machinery Laboratory (NGML) turbocharger test and research facility (TTRF). The test data show that the addition of a turbocharger booster system increased the speed of the turbocharger without increasing the emission levels. The increase in speed translates to an increased pressure ratio and mass flow rate of air produced by the compressor. By controlling the booster system, constant air flow rate can be achieved regardless of ambient conditions. This paper provides test results that show how the system can be used to increase an engine’s operating range and mitigate ambient effects.
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Hribernik, Ales, Gorazd Bombek, and Ferdinand Trenc. "Investigation of Acceleration of Turbocharged Diesel Engine." In ASME 2001 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-ice-430.

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Abstract Acceleration of a 4-cylinder, 7-litre, turbocharged diesel engine has been investigated by the means of experimental and analytical procedure. The engine acceleration on a test stand has been tested using standard dynamometer which has been controlled by a computer. All measurements have been performed at the maximum fuel rack position, however the courses of engine load have been varied. Engine speed, dynamometer load, in-cylinder pressure and boost pressure-time history, have been measured during acceleration in order to acquire the data for validation of engine acceleration model. A non-linear, transient, multi-cylinder, turbocharged, diesel engine simulation has been developed for predictions of instantaneous engine and turbocharger speed and torque. The foundation of the model is a thermodynamic, steady state diesel engine simulation. The transient extension of the original model represents the diesel engine as a non-linear, dynamic system. The predictions of engine simulation model agree fairly well with experimental results and may be used for case studies of engine acceleration. As an example the model has been used to study the influence of manifold-pressure compensator (LDA-system) on the acceleration of turbocharged diesel engine. The original LDA-system has been modified and the comparison of the results predicted by the application of original and modified LDA system has been done.
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Serrano, José Ramón, Francisco José Arnau, Luis Miguel García-Cuevas González, Alejandro Gómez-Vilanova, and Stephane Guilain. "Impact of a Holistic Turbocharger Model in the Prediction of Engines Performance in Transient Operation and in Steady State With LP-EGR." In ASME 2018 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icef2018-9550.

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Turbocharged engines are the standard powertrain type of internal combustion engines for both spark ignition and compression ignition concepts. Turbochargers modeling traditionally rely in look up tables based on turbocharger manufacturer provided maps. These maps as the only secure source of information. They are used both for the matching between reciprocating engine and the turbocharger and for the further engine optimization and performance analysis. In the last years have become evident that only these maps are not being useful for detailed calculation of variables like after-treatment inlet temperature (turbine outlet), intercooler inlet temperature (compressor outlet) and engine BSFC at low loads. This paper shows a comprehensive study that quantifies the errors of using just look up tables compared with a model that accounts for friction losses, heat transfer and gas-dynamics in a turbocharger and in a conjugated way. The study is based in an Euro 5 engine operating in load transient conditions and using a LP-EGR circuit during steady state operation.
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Thompson, Ian, Stephen Spence, Charles McCartan, David Thornhill, and Jonathan Talbot-Weiss. "Investigations Into the Performance of a Turbogenerated Biogas Engine During Speed Transients." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45317.

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Turbogenerating is a form of turbocompounding whereby a Turbogenerator is placed in the exhaust stream of an internal combustion engine. The Turbogenerator converts a portion of the expelled energy in the exhaust gas into electricity which can then be used to supplement the crankshaft power. Previous investigations have shown how the addition of a Turbogenerator can increase the system efficiency by up to 9%. However, these investigations pertain to the engine system operating at one fixed engine speed. The purpose of this paper is to investigate how the system and in particular the Turbogenerator operate during engine speed transients. On turbocharged engines, turbocharger lag is an issue. With the addition of a Turbogenerator, these issues can be somewhat alleviated. This is done by altering the speed at which the Turbogenerator operates during the engine’s speed transient. During the transients, the Turbogenerator can be thought to act in a similar manner to a variable geometry turbine where its speed can cause a change in the turbocharger turbine’s pressure ratio. This paper shows that by adding a Turbogenerator to a turbocharged engine the transient performance can be enhanced. This enhancement is shown by comparing the turbogenerated engine to a similar turbocharged engine. When comparing the two engines, it can be seen that the addition of a Turbogenerator can reduce the time taken to reach full power by up to 7% whilst at the same time, improve overall efficiency by 7.1% during the engine speed transient.
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Ismail, Muhammad Izzal, Aaron Costall, Ricardo Martinez-Botas, and Srithar Rajoo. "Turbocharger Matching Method for Reducing Residual Concentration in a Turbocharged Gasoline Engine." In SAE 2015 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2015. http://dx.doi.org/10.4271/2015-01-1278.

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Aghaali, Habib, and Hans-Erik Ångström. "Turbocharged SI-Engine Simulation With Cold and Hot-Measured Turbocharger Performance Maps." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68758.

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Heat transfer within the turbocharger is an issue in engine simulation based on zero and one-dimensional gas dynamics. Turbocharged engine simulation is often done without taking into account the heat transfer in the turbocharger. In the simulation, using multipliers is the common way of adjusting turbocharger speed and parameters downstream of the compressor and upstream of the turbine. However, they do not represent the physical reality. The multipliers change the maps and need often to be different for different load points. The aim of this paper is to simulate a turbocharged engine and also consider heat transfer in the turbocharger. To be able to consider heat transfer in the turbine and compressor, heat is transferred from the turbine volute and into the compressor scroll. Additionally, the engine simulation was done by using two different turbocharger performance maps of a turbocharger measured under cold and hot conditions. The turbine inlet temperatures were 100 and 600°C, respectively. The turbocharged engine experiment was performed on a water-oil-cooled turbocharger (closed waste-gate), which was installed on a 2-liter gasoline direct-injected engine with variable valve timing, for different load points of the engine. In the work described in this paper, the difference between cold and hot-measured turbocharger performance maps is discussed and the quantified heat transfers from the turbine and to/from the compressor are interpreted and related to the maps.
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Reports on the topic "Turbocharged engine"

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Wagner, Terrance. Advanced Gasoline Turbocharged Direction Injection (GTDI) Engine Development. Office of Scientific and Technical Information (OSTI), December 2015. http://dx.doi.org/10.2172/1253890.

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Gaspar, Daniel J., Brian H. West, Danial Ruddy, Trenton J. Wilke, Evgueni Polikarpov, Teresa L. Alleman, Anthe George, et al. Top Ten Blendstocks Derived From Biomass For Turbocharged Spark Ignition Engines: Bio-blendstocks With Potential for Highest Engine Efficiency. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1567705.

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Muth, T. R., and R. Mayer. Production of Diesel Engine Turbocharger Turbine from Low Cost Titanium Powder. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1040848.

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Muth, Thomas R., and Rob Mayer. Production of Diesel Engine Turbocharger Turbine from Low Cost Titanium Powder. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1042917.

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Davis, Ryan, Eric Monroe, and Anthe George. Top Ten Blendstocks Derived From Biomass For Turbocharged Spark Ignition Engines. Office of Scientific and Technical Information (OSTI), June 2019. http://dx.doi.org/10.2172/1762671.

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West, Brian H., Shean P. Huff, Larry G. Moore, Melanie Moses DeBusk, and Scott Sluder. Effects Of High-Octane E25 On Two Vehicles Equipped With Turbocharged, Direct-Injection Engines. Office of Scientific and Technical Information (OSTI), September 2018. http://dx.doi.org/10.2172/1470897.

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