diesel engine Articles
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A computational study of compressor surge during transient operation of turbocharged diesel engines
The transient response of turbocharged diesel engines is of great importance, especially when compressor surge is likely to occur. Turbocharger compressor surge is a dynamic instability mode that can generate air mass flow rate and pressure rise oscillations of large amplitude, and may also induce severe torsional loading to the turbocharger shaft. In this paper, an effort is made to study by ...
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Exergy analysis of a diesel engine cycle and its performance improvement
This paper aims to evaluate available energy losses, i.e. exergy losses caused by irreversible processes in the theoretical cycle of two-stroke and four-stroke diesel engines. All exergy losses in these cycles have been divided into three categories: exergy loss in the heat receiving process which is inevitable in thermal power systems; exergy loss in the scavenging process peculiar to the ...
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Fault diagnosis of a diesel engine by using the analysis of instantaneous angular speed with a flexible model
Engine shaft instantaneous angular speed (IAS) can be used to diagnose combustion related faults and other faults affecting the output of engines, especially for small-scale diesel generators. Unfortunately, it is difficult to apply this technology to monitoring the operational condition of a marine propulsion diesel engine due to its complex shafting systems and multiple factors affecting the ...
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Systemic problems in technology transfer in emerging markets
This study analyses a case of a Korean company that imported the manufacturing technology of diesel engines from West Germany back in the 1970s when Korea was in a state of an emerging market. The first objective of this study is to identify the systemic nature of the problems that arose in the course of the transfer of technology from an advanced country to an emerging market. The second ...
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Exergetic performance investigation of a turbocharged stationary diesel engine
An exergetic assessment is reported of a turbocharged stationary diesel engine with a power output of about 19 MW. The system studied consists of a diesel engine, a turbine, a compressor, an intercooler and a radiator. The sites of exergy destructions are identified and quantified and the exergy efficiencies of various components are determined. The effects of inlet air temperature and pressure ...
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A review on exergetic analysis and assessment of various types of engines
This study presents a review on energy and exergy analysis of Otto and Diesel engines. Calculation methods of the analysis are discussed in detail. Previous studies, from 1963 to 2008, are chronologically listed and studied. The test engines had different cylinder numbers, speeds and rated powers. Engine specifications and test bench schematics are given in tables and figures. The best exergetic ...
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The influence of injection system characteristics on the first- and second-law terms in high-speed DI diesel engines with swirl combustion chamber
In this investigation, the influences of fuel injection system characteristics on the first and second laws of thermodynamics are analysed in DI diesel engines with swirl combustion chamber. The first law analysis is done by using the results of KIVA Π code. The results show a good agreement with the experimental data. Also for the second law analysis during a closed cycle, a home made ...
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A diesel compound HCCI combustion engine based on injection strategy control
This paper presents a compound combustion technology of "Premixed Combustion" and "Lean Diffusion Combustion" for the purpose of realising the concept of homogeneous charge compression ignition (HCCI) combustion in a DI diesel engine. The premixed combustion is achieved by the technology of multi-pulse fuel injection. The start of pulse injection, injection-pulse number, injection period of each ...
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Diesel Engine Generator Project - Case Study
We were responsible for the refurbishment, delivery and installation of the AVK generator. This includes managing the logistic requirements to deliver the generator from China to our customer in ...
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Diesel Engine Rebuild Facility
The facility rebuilds both tractor and truck diesel engines. The process uses soaps and surfactants to clean the engine and parts during the rebuilding process. The wastewater generated is treated using the Floccin 1105 in a water reuse system designed by Integrated Engineers, Inc. All of the water is reused in this closed loop system. Here is an example of the jars before and after treatment ...
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The Diesel Engine and the Road Ahead – a US Perspective
The diesel engine has become the workhorse of commercial transportation around the world and has had to adapt to different environments and various pressures throughout its history. It is now at the point where it has achieved excellent performance whilst maintaining its superior fuel economy and meeting ever-tightening emissions regulations. Contrary to common belief, diesel engines ...
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Performance and emissions of a dual fuel operated diesel engine
Vegetable oil and its esters (biodiesel) are the renewable alternative fuels that can be used as a substitute for diesel in the diesel engines. The vegetable oil fuelled diesel engine results in lower efficiency and higher smoke emission. Hence in this work, an attempt has been made to use inedible and under utilised mahua oil (MO) as a substitute for diesel by fumigating liquefied petroleum gas ...
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Assessment of fuel efficiency of neem biodiesel (Azadirachta indica) in a single cylinder diesel engine
Increase of petroleum diesel usage and its environmental pollution necessitate the study of alternate fuel production. Vegetable oils are the viable alternate form of non–polluted, renewable fuel to diesel engines. In this work, the non–edible oil, neem (Azadirachta indica) was used to produce biodiesel by a two step transesterification process. The fuel properties of the biodiesel thus produced ...
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Engineering, Procurement, Construction (EPC) Project - Case Study
We were awarded an Engineering, Procurement, Construction (EPC) contract for six(6) pre-owned Deutz Diesel Engine to a new power plant in Asia. The power plant generate and supply about 30MW of electricity to the national ...
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Effects of injection timing on the performance and emissions of a diesel engine fuelled with diethyl ether blended thevetia peruviana biodiesel
Fast depletion of petroleum reserves and existing emission norms drive us to search for the apt fuel for the IC engines. Biodiesel derived from vegetable oils is being tried now–a–days in most of the researches. A number of researches are in progress to reduce the emissions by using various techniques. In this study, the injection timing of a single cylinder diesel engine is advanced from 23° to ...
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Performance and emission characteristics of calophyllum inophyllum linn oil (blends and preheated) in an agricultural diesel engine
The present work examines the use of a non-edible oil namely honne oil, a new possible source of alternative fuel for diesel engine. The uses of honne oil either in neat form or blended (unheated or preheated) with diesel fuel in diesel engine has not been reported in the literature. The viscosity of honne oil can be reduced by blending it with diesel fuel. Even after blending, viscosity is high ...
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Controlling the timing chain noise in diesel engines
Timing drive by chain is commonly used in passenger cars especially in diesel engines with double overhead camshafts owing to their numerous advantages compared with belt drive systems. However, one of the important subjects to take into account is the timing chain noise, so-called "meshing noise" that can be perceived by the driver. The manufacturer's efforts to reduce it, are focused ...
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Effect of EGR on performance and emission characteristics of diesel engine at advanced injection timing
This work attempts to reduce the smoke density of diesel engine by advancing the fuel injection timing and also the NOx emission of the engine by introducing EGR at the advanced injection timing. A single cylinder 4.4 kW air cooled, naturally aspirated, stationary diesel engine was utilised for the investigation. Engine tests were conducted at different loads at standard injection timing and ...
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Exergetic cost analysis and sustainability assessment of an Internal Combustion Engine
This study deals with exergy cost analysis and sustainability assessment of a diesel engine, which runs with diesel no. 2 and two different biodiesel fuels at 1400 1/min test speed. Maximum total cost per exergy flow input rate and total exergy cost are found to be 12.5549 $/kW•year and 1728.312 $/year for one of the biodiesel fuels, respectively, while minimum values of these costs are ...
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Vibration diagnosis of main journal bearings for diesel engines
A comprehensive summary of the vibration diagnosis techniques used to detect the wear of the main journal bearings in a diesel engine is presented. The load of the main journal bearing, the minimum thickness of the oil film, the oil film pressure and the locus of the crankshaft centre have been calculated based on the measured thermal parameters. Simulated wear experiments for the main journal ...
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