Internal Combustion Engines is a textbook designed for the students of mechanical and allied engineering programmes to help them understand the principles, working, and performance of various IC engines. Suitable for: students of mechanical and allied engineering programmes............................................................
Discover the world's research
- 20+ million members
- 135+ million publications
- 700k+ research projects
Join for free
`000
Internal Combustion Engines is a textbook designed for the students of mechanical and allied
engineering programmes to help them understand the principles, working, and performance of various IC
engines.
Beginning with the thermodynamic cycles, the discussion moves onto combustion mechanism, fuels and
systems, ignition system, friction and lubrication, and cooling auxiliaries. This is followed by chapters on
two-stroke engines, superchargers and turbochargers, air pollution control, and testing and performance.
The last chapter deals with the dynamics of exhaust and fresh charge for successive cycles in gas
exchange systems.
Key Features
V. Sajith is Assistant Professor, School of Nano Science and Technology, National Institute of Technology
Calicut, Kerala. His teaching and professional experience together spans more than 20 years.
Shijo Thomas is Assistant Professor, School of Nano Science and Technology, National Institute of
Technology Calicut, Kerala and has more than 15 years of experience in teaching and research.
Discusses electronic fuel injection systems such as MPFI, GDI, and CRDI as well as air-assisted fuel
injection system.
Describes the application of nanotechnology in internal combustion engines in various systems such
as cooling, lubrication, and fuel systems.
Presents ame visualization techniques for combustion analysis, thermodynamic analysis of
combustion, and associated heat release.
Illustrates the concepts through schematics, sectional views, and photographs wherever relevant.
Includes a variety of solved problems along with multiple choice questions (MCQs), theoretical
questions, and exercise problems.
The following resources are available to support the faculty and students using this text:
Solutions manual
Chapter-wise lecture PPTs
Additional reading material on
gas turbines
ONLINE RESOURCES
For Students
Colour photographs of engines presented
in the book
Additional reading material on
gas turbines
For Faculty
ONLINE RESOURCES
For Teachers and Students
india.oup.com/orcs/9780199479481
V. Sajith Shijo Thomas
Internal Combustion
Engines
Internal Combustion Engines
Internal Combustion Engines Sajith Shijo
... (2) The piston travel can be calculated ---(3) The piston velocity can be calculated -(4) The acceleration of the piston is A = R ( cos Φ + λcos2Φ + kλsin Φ ) (5) where, R = crank radius λ = dimensionless parameters k = the relative displacement a = displacement of the plane of travel of the piston pin axis from crankshaft axis Figure 1.The offset engine crank gear Φ = angle of crank travel counted from the cylinder axis in the direction of clockwise crankshaft rotation β = angle between the connecting rod and cylinder axis ω = angular velocity of crankshaft rotation S = 2R = piston stroke L Rod = connecting rod length V p = piston velocity A = acceleration of the piston Take the rotational speed of engine N = 3200 rpm and the offset is 0.015D [2]. Piston-travel, velocity and acceleration with corresponding crank angle are shown in Table 1. ...
... Cross section of a spark-ignition engine (adapted from Ganesan[32]). ...
This article presents a review of the available solutions of micro combined heat and power systems. First part focuses on existing energy conversion devices. If internal combustion engine technology seems to be the more mature and economically viable, several research and development works aim to develop other systems such as Stirling engine, organic Rankine cycle (ORC) and fuel cells. The second part deals with renewable energy fuelled micro combined heat and power systems with a focus on solar energy-based technologies.
... The investigation examines two more cases. In general, the compression ratio's increment improves the thermal efficiency (Ganesan, 2003). This is also validated here by the CFD results of the two last cases. ...
Amid an increasingly higher demand for lower fuel consumption and pollutant emissions, mechanical design favors the development of novel engine configurations. Along these lines, the main aim of the present contribution is to conduct a numerical investigation of a new concept rotary engine and compare it to a conventional reciprocating engine, in terms of thermodynamic efficiency and output power. The paper reviews the physical model and the operating principle of the recently brought to light rotary engine. A zero-dimensional fuel-air cycle analysis is initially performed in order to be enhanced by more accurate computational fluid dynamics (CFD) analyses for both engines. The main challenge of this investigation is to examine the advantages of the new concept engine, when compared with a reciprocating engine with the same initial conditions such as full load (stoichiometric mixture, λ=1), same fuel consumption and the same compression ratio (CR). This introductory work on the potential of the novel rotary engine shows that it can achieve more performance benefits than the conventional Otto cycle engine in all cases. The results indicate that the lower temperatures developed during engine combustion may result in decreased NOx formation while the thermal efficiency augmentation of the current non-optimized geometry exceeds 15% in all studied cases.
... Since the ignition is done by compression of air, the diesel engine is called Compression Ignition engine (CI engine).Compared with petrol engines, the diesel engines are more economical due to high thermal efficiency. [1] In an external combustion engine, on the other hand, the fuel is burnt outside the engine For example, in a steam engine or a steam turbine, the heat generated due to the combustion of fuel is employed to generate high pressure steam which is used as the working fluid in a reciprocating engine or a turbine [2] Piston is considered to be one of the most important parts in a reciprocating engine in which it helps to convert the chemical energy obtained by the combustion of fuel into (useful work) mechanical power. Piston is the moving component that is contained by a cylinder and is made gas-tight by piston rings. ...
The current research aims to present an inclusive review of latest research works performed with the aim of improving the efficiency of the hybrid renewable energy systems (HRESs) by employing diverse ranges of the optimization techniques, which aid the designers to achieve the minimum expected total cost, while satisfying the power demand and the reliability. For this purpose, a detailed analysis of the different classification drivers considering the design factors such as the optimization goals, utilized optimization methods, grid type as well as the investigated technology has been conducted. Initial results have indicated that among all optimization goals, load demand parameters including loss of power supply probability (LPSP) and loss of load probability (LLP), cost, sizing (configuration), energy production, and environmental emissions are the most frequent design variables which have been cited the most. Another result of this paper indicates that almost 70% of the research projects have been dedicated towards the optimization of the off-grid applications of the HRESs. Furthermore, it has been demonstrated that, integration of the PV, wind and battery is the most frequent configuration. In the next stage of the paper, a review concerning the sizing methods is also carried out to outline the most common techniques which are used to configure the components of the HRESs. In this regard, an analysis covering the optimized indicators such as the cost drivers, energy index parameters, load indicators, battery's state of charge, PV generator area, design parameters such as the LPSP, and the wind power generation to load ratio, is also performed.
This paper presents an Atkinson Cycle mechanisms classification. The proposed classification is based on mechanism theory, dividing the mechanisms into two main classes and eight subclasses. The reconfigurability of Atkinson Cycle mechanisms is discussed as well as the mechanism characteristics for each class. This classification was applied to the engines found in bibliography and patent survey. Both surveys were necessary to yield a complete state of the art, regarding not only academic but also technological advances. These surveys and the Atkinson Cycle engine classification expose the wide window of opportunities for engine development. The use of reconfigurable Atkinson Cycle engines can be a powerful tool to develop more efficient vehicles.
A numerical study was carried out to study the effect of various combustion bowl parameters on the performance behavior, combustion characteristics, and emission magnitude on a single cylinder diesel engine. A base combustion bowl and 11 different combustion bowls were created by varying the aspect ratio, reentrancy ratio, and bore to bowl ratio. The study was carried out at engine rated speed and a full throttle performance condition, without altering the compression ratio. The results revealed that the combustion bowl parameters could have a huge impact on the performance behavior, combustion characteristics, and emission magnitude of the engine. The bowl parameters, namely throat diameter and toroidal radius, played a crucial role in determining the performance behavior of the combustion bowls. It was observed that the combustion bowl parameters, namely central pip distance, throat diameter, and bowl depth, also could have an impact on the combustion characteristics. And throat diameter and toroidal radius, central pip distance, and toroidal corner radius could have a consequent effect on the emission magnitude of the engine. Of the different combustion bowls tested, combustion bowl 4 was preferable to others owing to the superior performance of 3% of higher indicated mean effective pressure and lower fuel consumption. Interestingly, trade-off for NO x emission was higher only by 2.85% compared with the base bowl. The sensitivity analysis proved that bowl depth, bowl diameter, toroidal radius, and throat diameter played a vital role in the fuel consumption parameter and emission characteristics even at the manufacturing tolerance variations.
The waste tyre and waste cooking oils have a great potential to be used as alternative fuels for diesel engines. The aim of this study was to convert light fractions of pyrolysis oil derived from Pakistani waste vehicle tyres and waste soybean oil methyl esters into valuable fuel and to reduce waste disposal-associated environmental problems. In this study, the waste tyre pyrolysis liquid (light fraction) was collected from commercial tyre pyrolysis plant and biodiesel was prepared from waste soybean oil. The fuel blends (FMWO10, FMWO20, FMWO30, FMWO40 and FMWO50) were prepared from a 30:70 mixture of waste tyre pyrolysis liquid and waste soybean oil methyl esters with different proportions of mineral diesel. The mixture was named as the fuel mixture of waste oils (FMWO). FT-IR analysis of the fuel mixture was carried out using ALPHA FT-IR spectrometer. Experimental investigations on a diesel engine were carried out with various FMWO blends. It was observed that the engine fuel consumption was marginally increased and brake thermal efficiency was marginally decreased with FMWO fuel blends. FMWO10 has shown lowest NOx emissions among all the fuel blends tested. In addition, HC, CO and smoke emissions were noticeably decreased by 3.1–15.6%, 16.5–33.2%, and 1.8–4.5%, respectively, in comparison to diesel fuel, thereby qualifying the blends to be used as alternative fuel for diesel engines.
ResearchGate has not been able to resolve any references for this publication.
Source: https://www.researchgate.net/publication/319260186_Internal_Combustion_Engine
Posted by: vernrushanane0197381.blogspot.com
Post a Comment