Methodologies to Compare IC Engine Power Assembly Interface Materials

2018 ◽  
Author(s):  
M R Sridhar ◽  
K A Harsha ◽  
Savio Sebastian ◽  
Souvik Math
Keyword(s):  
Ic Engine ◽  
Interface Materials ◽  
Engine Power

scholarly journals Prediction of IC Engine Power System Durability with the Use of Ring Pack Model

2010 ◽  
Vol 13 (1) ◽  
pp. 299-310
Author(s):  
Grzegorz Koszałka ◽  
Andrzej Niewczas
Keyword(s):  
Diesel Engine ◽  
Power System ◽  
Prior Knowledge ◽  
Analytical Model ◽  
Life Prediction ◽  
New Method ◽  
Ic Engine ◽  
Ring Pack ◽  
Engine Life ◽  
Engine Power

Prediction of IC Engine Power System Durability with the Use of Ring Pack ModelThe paper presents the new method of engine life prediction, which bases on the results of wear measurements taken on an investigated engine and simulations carried out with the use of the analytical model of ring pack of the engine. In the contrary to traditional methods the proposed method does not require the prior knowledge of the limit wear value, which is essential for the prediction, however its reliable establishing for new engines is difficult. In the presented method its value is determined with the use of the ring pack model. The example of durability calculation for an automotive diesel engine is also presented.

Optimizing the Efficiency of Electro-Hydraulic Powertrains

2006 ◽  
Author(s):  
Alexander J. Montgomery ◽  
Andrew G. Alleyne
Keyword(s):  
Intelligent Control ◽  
Operating Conditions ◽  
Control Algorithms ◽  
Prime Mover ◽  
Ic Engine ◽  
Engine Operation ◽  
Hydrostatic Transmission ◽  
Controlled Systems ◽  
Variable Displacement ◽  
Engine Power

The evolution of the hydrostatic transmission system from mechanical systems to electronically controlled systems creates opportunity for improvements in efficiency through the use of intelligent control algorithms. In systems for which the prime mover is an internal combustion (IC) engine, overall system efficiency depends greatly on the prime mover's operating conditions. The use of variable displacement pumps can add a degree of freedom and allow engine operation to be optimized. However, this strategy requires a desired engine power value based on operating states and load references. This paper proposes a novel solution to this problem by using a dynamic engine power demand estimate to meet steady-state load demands using minimal engine power.

Forced Induction Technologies in an IC Engine: A Review

2021 ◽  
Vol 9 (VI) ◽  
pp. 2766-2770
Author(s):  
Ranaji Arib Hafiz Ayyub Akbar Ahmedi
Keyword(s):  
Automotive Industry ◽  
Performance Enhancement ◽  
Combustion Engine ◽  
Early Stage ◽  
Passenger Cars ◽  
Ic Engine ◽  
Electric Supercharger ◽  
Light Duty ◽  
Greenhouse Emission ◽  
Engine Power

This study has been undertaken to show the performance enhancement of engines using different Forced induction technologies. Forced induction technology like turbocharging and supercharging can enhance the performance of an internal combustion engine by compressing inlet air charge, allowing full engine power to be produced efficiently. As the fuel economy and greenhouse emission standards are projected to be far more stringent globally, the use of a Forced induction engine in passenger cars and light-duty trucks has become an inevitable trend within the automotive industry. A turbocharger system can effectively improve the power and torque of an engine, but turbo hysteresis exists. A mechanical supercharging system can boost at low speed, but the efficiency is lower. An electric supercharger can effectively improve the intake air at the early stage of accelerated working conditions, however, an electric supercharger will consume the engine power. The addition of Forced induction technologies to an IC engine helps with the scope of downsizing it. This review brings forward all the aspects of Forced induction technologies

Advances in Nonlinear Rotordynamics of Passenger Vehicle Turbochargers: A Virtual Laboratory Anchored to Test Data

2005 ◽  
Author(s):  
Luis San Andre´s ◽  
Juan Carlos Rivadeneira ◽  
Kostandin Gjika ◽  
Murali Chinta ◽  
Gerry LaRue
Keyword(s):  
Engine Oil ◽  
Virtual Laboratory ◽  
Frequency Content ◽  
Passenger Vehicle ◽  
Ic Engine ◽  
Lubricant Films ◽  
In Series ◽  
Nonlinear Motions ◽  
Wide Operating ◽  
Engine Power

Passenger vehicle turbochargers (TCs) offer increased IC engine power and efficiency. TCs operate at high rotational speeds and use engine oil in their bearing support system comprising of inner and outer lubricant films acting in series. The hydrodynamic bearings induce instabilities, i.e. subsynchronous shaft motions over wide operating speed ranges [1]. Yet, the motions are well bounded limit enabling the TC continuous operation [2, 3]. Due to the lack of accurate and efficient predictive nonlinear tools, turbocharger rotordynamic design followed, until recently, costly test stand iteration [3]. Presently, a rotordynamics model coupled to a bearing lubrication model calculates the nonlinear motions of TCs and delivers predictions of TC shaft dynamic response for practical conditions [4–6]. The software emulates a virtual laboratory, effectively aiding to design better TC products with increased reliability in a shorter cycle time. Predictions of the nonlinear model compare well with recorded TC shaft motions, both in amplitude and frequency content. The benchmarking lends credence to the validity of the integrated computational model.

Cleaning Up Gasification Producer Gas for Use in an IC Engine

2012 ◽  
Author(s):  
Bradley Ginger
Keyword(s):  
Lessons Learned ◽  
Technical Solution ◽  
Producer Gas ◽  
Air Pollution Control ◽  
Successful Operation ◽  
Ic Engine ◽  
Refuse Derived Fuels ◽  
Commercial Research ◽  
Gasification Technology ◽  
Engine Power

A great deal of recent commercial interest in gasification technology has been centered on the idea of conditioning the producer or syn-gas generated to a level suitable for inclusion in an internal combustion (IC) engine power generation in the 3–15 MW range. Ideally the feed stocks for the gasification system should be able to encompass a variety of opportunity fuels to reduce the energy input costs to the engine. However, these opportunity fuels can cover a wide variety of potential energy sources such as refuse derived fuels, recovered plastics, and various grades of woody biomass, which can present operational challenges to the successful operation of an IC engine. Most major IC engine manufacturers have published guideline specifications for acceptable levels of particulate matter, sulfur, halogens, trace metals, and tar dew points to be maintained in handling a gasification producer gas. The requirements can be very rigorous especially in the context of variable feed mixtures and operational variations encountered in gasification of opportunity fuels. This presentation will address commercial research efforts to adapt an emerging air pollution control technology, the EISENMANN WESP-2F, as the desired technical solution for appropriately conditioning gasification producer gas to a point where inclusion in an IC engine is feasible. Research and testing on the aforementioned system took place using a pilot sized unit operating a slipstream off a commercial sized gasifier testing a number of opportunity fuels. Technical challenges encountered and lessons learned are recounted.

Quasi-Periodic Control Technique for Minimizing Fuel Consumption During Record Vehicle Competition

2013 ◽  
Vol 60 (2) ◽  
pp. 185-197 ◽  
Author(s):  
Paweł Sulikowski ◽  
Ryszard Maronski
Keyword(s):  
Fuel Consumption ◽  
Optimal Control Theory ◽  
Slope Angle ◽  
Control Technique ◽  
Decision Variables ◽  
Aeronautical Engineering ◽  
The One ◽  
Optimal Driving ◽  
The Given ◽  
Engine Power

The problem of the optimal driving technique during the fuel economy competition is reconsidered. The vehicle is regarded as a particle moving on a trace with a variable slope angle. The fuel consumption is minimized as the vehicle covers the given distance in a given time. It is assumed that the run consists of two recurrent phases: acceleration with a full available engine power and coasting down with the engine turned off. The most fuel-efficient technique for shifting gears during acceleration is found. The decision variables are: the vehicle velocities at which the gears should be shifted, on the one hand, and the vehicle velocities when the engine should be turned on and off, on the other hand. For the data of students’ vehicle representing the Faculty of Power and Aeronautical Engineering it has been found that such driving strategy is more effective in comparison with a constant speed strategy with the engine partly throttled, as well as a strategy resulting from optimal control theory when the engine is still active.

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