Investigation on Single, Four And Five Holes Fuel Injector Nozzle on Performance And Emission Characteristic of Diesel on A VCR Engine by Using Ceramic Coating Material on The Piston Crown

The performance and emission characteristics of diesel engines are largely governed by fuel atomization and spray processes which in turn are strongly influenced by the flow dynamics inside the injector nozzle. Accurate measurement of the nozzle geometry is important for the study of the flow dynamics. Using the third-generation synchrontron radiation light source of the ShangHai Light Source (SSRF), the research team successfully captured the internal structure images of the single hole nozzle and multi-hole nozzle. According to the captured images, the researchers clearly observed the internal structure of nozzle as well as the sac region. The diameter and length of the nozzles and orifice angle were also be accurately measured.

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Performance and emission characteristic studies on CRDI diesel engine fuelled with plastic pyrolysis oil blended with ethanol and diesel

International Journal of Sustainable Engineering ◽

10.1080/19397038.2018.1527863 ◽

2018 ◽

Vol 12 (4) ◽

pp. 262-271 ◽

Cited By ~ 3

Author(s):

Sudershan B. Gadwal ◽

N.R. Banapurmath ◽

M.A. Kamoji ◽

P.B. Rampure ◽

S. V. Khandal

Keyword(s):

Diesel Engine ◽

Emission Characteristic ◽

Pyrolysis Oil ◽

Performance And Emission

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Modeling a fuel injector for a two-stroke diesel engine

Combustion Engines ◽

10.19206/ce-2017-325 ◽

2017 ◽

Vol 170 (3) ◽

pp. 147-153

Author(s):

Rafał SOCHACZEWSKI ◽

Zbigniew CZYŻ ◽

Ksenia SIADKOWSKA

Keyword(s):

Diesel Engine ◽

Combustion Chamber ◽

Fuel Injection ◽

Maximum Load ◽

Fuel Injector ◽

Dimensional Model ◽

Flow Area ◽

Fuel Mass ◽

One Dimensional ◽

Injector Nozzle

This paper discusses the modeling of a fuel injector to be applied in a two-stroke diesel engine. A one-dimensional model of a diesel injector was modeled in the AVL Hydsim. The research assumption is that the combustion chamber will be supplied with one or two spray injectors with a defined number of nozzle holes. The diameter of the nozzle holes was calculated for the defined options to provide a correct fuel amount for idling and the maximum load. There was examined the fuel mass per injection and efficient flow area. The studies enabled us to optimize the injector nozzle, given the option of fuel injection into the combustion chamber to be followed.

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Effect of Partially Premixed Fuel on Performance and Emission Characteristics of Compression Ignition (CI) Engine

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.d1035.1284s219 ◽

2019 ◽

Vol 8 (4S2) ◽

pp. 163-166

Keyword(s):

Diesel Engine ◽

New Technology ◽

Control Unit ◽

Injection Timing ◽

Emission Characteristics ◽

Compression Ignition ◽

Fuel Injector ◽

Si Engine ◽

Performance And Emission ◽

Partially Premixed

In this world, the population is increased and the number of vehicles increased. Not only population the pollution is increased lot by vehicles in the world harmful pollutant is realized from the vehicles like CO, HC, NOx and smoke particulates. It is inevitable to find some new technology, which increases the better performance and emission characteristics. Partially premixed compression ignition (PCCI) is the best technology for the reducing of harmful pollution in the vehicle, which uses the diesel as fuel it, gives the advantages of both CI and SI engine. This paper investigates the performance and emission characteristics of partially premixed diesel engine. Diesel engine has two injectors of port fuel injector (PFI) and direct injector (DI) to inject the fuel in different timing and electrical control unit (ECU) passes the power to PFI; it can control the injection timing and increases the fuel content from the fuel pump. The main aim in this paper is studied is effect of partially premixed ratio, performance of engine and emission characteristics of diesel engine

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Numerical study on the effects of creating rotationary flow inside the injector nozzle and changing fuel injection angle on the performance and emission of caterpillar diesel engine

Journal of the Brazilian Society of Mechanical Sciences and Engineering ◽

10.1007/s40430-021-03306-9 ◽

2021 ◽

Vol 44 (1) ◽

Author(s):

Amir Hamzeh Farajollahi ◽

Reza Firuzi ◽

Mohsen Rostami ◽

Amir Mardani

Keyword(s):

Diesel Engine ◽

Fuel Injection ◽

Numerical Study ◽

Injection Angle ◽

Performance And Emission ◽

Injector Nozzle

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Addition of Cellulose Nanofibers to Control Surface Roughness for Hydrophobic Ceramic Coatings

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2021.19430 ◽

2021 ◽

Vol 21 (8) ◽

pp. 4492-4497

Author(s):

Eun Ae Shin ◽

Gye Hyeon Kim ◽

Jeyoung Jung ◽

Sang Bong Lee ◽

Chang Kee Lee

Keyword(s):

Surface Roughness ◽

Contact Angle ◽

Surface Energy ◽

Water Contact Angle ◽

Ceramic Coating ◽

Cellulose Nanofibers ◽

Ceramic Coatings ◽

Coating Material ◽

Textured Surface ◽

Water Contact

Hydrophobic ceramic coatings are used for a variety of applications. Generally, hydrophobic coating surfaces are obtained by reducing the surface energy of the coating material or by forming a highly textured surface. Reducing the surface energy of the coating material requires additional costs and processing and changes the surface properties of the ceramic coating. In this study, we introduce a simple method to improve the hydrophobicity of ceramic coatings by implementing a textured surface without chemical modification of the surface. The ceramic coating solution was first prepared by adding cellulose nanofibers (CNFs) and then applied to a polypropylene (PP) substrate. The surface roughness increased as the amount of added CNFs increased, increasing the water contact angle of the surface. When the amount of CNFs added was corresponding to 10% of the solid content, the surface roughness average of the area was 43.8 μm. This is an increase of approximately 140% from 3.1 μm (the value of the surface roughness of the surface without added CNFs). In addition, the water contact angle of the coating with added CNF increased to 145.0°, which was 46% higher than that without the CNFs. The hydrophobicity of ceramic coatings with added CNFs was better because of changes in the surface topography. After coating and drying, the CNFs randomly accumulated inside the ceramic coating layer, forming a textured surface. Thus, hydrophobicity was improved by implementing a rugged ceramic surface without revealing the surface of the CNFs inside the ceramic layer.

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