Experimental Study of Ceramic Coated Piston Crown for Compressed Natural Gas Direct Injection Engines

Jalaludin, Helmisyah Ahmad; Abdullah, Shahrir; Ghazali, Mariyam Jameelah; Abdullah, Bulan; Abdullah, Nik Rosli

doi:10.1016/j.proeng.2013.12.213

Cited by 22 publications

(3 citation statements)

References 14 publications

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“…Cerit et al (2014) reported that the improvement in the performance of diesel engine by applying plasma splashed magnesia-stabilized zirconia coating on a piston crown. Jalaludin et al (2013) exposed that the yttria-stabilized zirconia/NiCrAl coated piston crown encountered the minimum heat transitions than the uncoated piston surfaces and giving additional protection at the time of ignition operation. Azadi et al (2013) demonstrated that the superior lifetime has to be achieved by maintaining the minimum thickness of coating layer.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Thermal Barrier (8YSZ-MGO-TIO2) Coated Piston used in Diesel Engine

Vadivel¹,

Sivanandi²

2020

JAFM

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A single cylinder diesel engine was tested under different loading conditions with its piston crown coated with the Thermal Barrier Coating (TBC). The main objective of this work is to investigate the effect of the TBC on performance and emission characteristics in the diesel engine. The top surface of the piston was coated with 100 µm thick NiCrAl as lining layer by plasma spray method. A mixture of 88% Yttria stabilized Zirconia, 4% MgO and 8% TiO2 of 150 µm thick were coated over the lining layer. Exhaust emission (HC, NOx, CO and CO2) parameters were investigated using AVL exhaust gas analyzer. The results showed that the brake thermal efficiency was increased by 10% and brake specific fuel consumption was decreased by 9.8% for coated piston in comparison with the uncoated piston engine. It was also observed that, smoke, CO and HC emissions were decreased in the TBC engine as compared with the baseline engine. In addition carbon di oxide (CO2) and nitrogen oxide (NOx) emissions were partially increased.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Thermal Barrier (8YSZ-MGO-TIO2) Coated Piston used in Diesel Engine

Vadivel¹,

Sivanandi²

2020

JAFM

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“…Various ceramic oxide materials available for coatings are Zirconia (ZRO2), Magnesia (MgO), Alumina (Al2O3), Berillya (BeO), Yttria-stabilized Zirconia (YSZ), Silicon Nitride (Si3N4), Ceria (CeO2), NiCrAl alloy, tin [6,7]. The parameters that have to be considered while selecting the suitable ceramic material are High melting point, Low thermal conductivity, High thermal expansion coefficient, Chemical stability, No phase transformation, Adherence to base metal, Lower sintering rate [8,9].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Formation of Oxide Layer on the Piston Crown Using Micro - Arc Oxidation on the Characteristics of the Spark Ignition Engine

Velavan

Saravanan

Vikneswaran

2019

KEM

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In the present study, experiments were conducted to compare the effect of oxide layer formation on the piston crown coated using Micro-Arc Oxidation (MAO) with uncoated piston on the combustion and emission characteristics of the port injected Spark Ignition engine fueled by gasoline. The micro-arc oxidation (MAO) coating technique is the modern process to form a ceramic oxide layer on the reactive metal substrate (base metal) by electrochemical and electro-thermal oxidation in an alkaline electrolytic solution. Using MAO technique, an oxide layer of thickness 72 μm was formed on the piston crown. This oxide layer acts as a thermal barrier to reduce the in-cylinder heat rejection and increase the durability of the piston by withstanding high temperature and pressure produced during combustion. Combustion flames have been captured using the AVL combustion analyzer to analyze the development and propagation of flames within the engine cylinder. From the flame images, it was observed that propagation of flame was faster in MAO coated piston compared to uncoated piston. This is because of higher local temperature inside the combustion chamber that was resulted due to low thermal conductivity of MAO layer. It was also found that carbon monoxide (CO) and hydrocarbon (HC) emissions were reduced as a result of efficient fuel combustion, while NOx emissions increased because of increased combustion temperatures for MAO coated pistons. Keywords: Electro-thermal oxidation, Flame propagation, Micro-arc oxidation, Piston crown, Thermal barrie

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“…The temperatures of the piston crown at top and piston underside were measured and the heat fluxes on piston crown were calculated. Finally the YPSZ or NiCrAl coated CNGDI piston crown has the lower heat fluxes than that of the uncoated piston [4]. A single cylinder, four stroke, direct injection, diesel engine with coated piston crown, cylinder head and valves with a 0.5 mm thick (Al2O3 60%, SiO2 40%) over a 150 µm thick NiCrAlY bond coat.…”

Section: Introductionmentioning

confidence: 99%

Effect on Performance and Emission Analysis of Advanced Ceramic Material Coated Piston Crown Using Plasma Spray Coating Techniques

Mahalingam

Ganesan

Ahammed

et al. 2015

AMM

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Advanced ceramic coating technologies are commonly used as metal coatings for internal combustion engine components and aerospace application. The thermal barrier coatings are being applied to the engine components to increasing life and improve the performance of the engine. This experimental study is focused on advanced ceramic material of Zirconia stabilized with the yttrium oxide (Zirconia 80% wt and Yttia 20 % by weight) applied on the piston crown for analyzing the performance and emission characteristics of the diesel engine. By using ceramics coated piston crown, the brake thermal efficiency and specific fuel consumption were improved as compared to that of the piston without coating. Exhaust emission level of CO, UHC and NOx are also considerably reduced using advanced ceramic metal coating techniques.

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Experimental Study of Ceramic Coated Piston Crown for Compressed Natural Gas Direct Injection Engines

Cited by 22 publications

References 14 publications

Experimental Investigation of Thermal Barrier (8YSZ-MGO-TIO2) Coated Piston used in Diesel Engine

Experimental Investigation of Thermal Barrier (8YSZ-MGO-TIO2) Coated Piston used in Diesel Engine

The Impact of Formation of Oxide Layer on the Piston Crown Using Micro - Arc Oxidation on the Characteristics of the Spark Ignition Engine

Effect on Performance and Emission Analysis of Advanced Ceramic Material Coated Piston Crown Using Plasma Spray Coating Techniques

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