Microstructure and chemical analysis of NOx and particle emissions of diesel engines

Güney, Bekir; Öz, Ali

doi:10.18245/ijaet.730585

Cited by 9 publications

(7 citation statements)

References 39 publications

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“…A large part of the particulate matter, called secondary particles from the exhaust gas, occurs during this process of nucleation and solidification. This process of condensation and agglomeration also affects the composition, size and quantity of PM [19]. Due to the high atmospheric oxidation occurring in the process, the composite structure morphology consists of highly oxidized form [20].…”

Section: Introductionmentioning

confidence: 99%

“…In similar studies in the relevant literature, various studies have been conducted on the impact of vehicle emissions on the environment [25][26][27], health [28,29] and characterization [30][31][32][33][34]. Microstructure analysis of vehicle emissions was performed in our previous studies [19,35,36]. Today, significant improvements have been made in terms of fuel efficiency and CO 2 emissions for gasoline engines due to the increasingly systematic introduction of emission control mechanisms [37].…”

Section: Introductionmentioning

confidence: 99%

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Microstructural Characterization of Particulate Matter from Gasoline-Fuelled Vehicle Emissions

Güney

Aladağ

2020

JERR

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Exhaust emissions from vehicle traffic refers to the particles released into the air due to combustion of fuels, additives and wear of engine parts in the system during vehicle use. These emissions occur depending on the type of vehicle, type of fuel, combustion process and environmental conditions. In this study, microstructure and chemical characterization of particulate matter (PM) released from gasoline-fuelled vehicles were examined using electron microscopy techniques. As a result, much solid soot, metalloids, heavy metals, ash, sulphates, phosphates, minerals, volatile organic and inorganic pollutants were found to be present in gasoline exhaust emission. These toxic structures still pose a danger to environmental safety and human health. Aim: In study, microstructure characterization of emissions released from gasoline-fuelled vehicles exhaust were investigated using electron microscopy techniques. Study design: SEM, EDS, XRD and FTIR electron microscopy techniques were used for characterization. Place and Duration of Study: Material Characterization Laboratory of Karamanoğlu Mehmetbey University, Scientific and Technological Research Application and Research Center, between Junuary 2020 and July 2020. Results: The vehicles still continue to spread toxic pollutants. Conclusions: The chemical structure of PM contains 20 elements including C, F, N, Na, O, Mg, Br, Si, Hg, S, P, Pb, Ca, Cr, Mn, Fe, Ni, Co, Cu, Zn. There are pollutant functional groups such as OH, CO, SO in the structure. Hydrocarbons, metalloids, heavy metals, different minerals, phosphates, sulfates, many volatile organic and inorganic compounds pollute the air in PM structure. These toxic pollutants harm the environment and human health.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microstructural Characterization of Particulate Matter from Gasoline-Fuelled Vehicle Emissions

Güney

Aladağ

2020

JERR

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“…Egzoz gazından ikincil parçacıklar olarak adlandırılan partikül maddenin büyük bir kısmı bu sırada, çekirdekleşme ve katılaşma sürecinde meydana gelmektedir. Bu yoğunlaşma ve aglomerasyon süreci PM'nin bileşim, boyut ve miktarına da etki etmektedir [11]. Süreç içerisinde meydana gelen yüksek atmosferik oksidasyon sebebiyle kompozit yapı morfolojisinde yoğun şekilde oksitli formlar oluşmaktadır [12].…”

Section: Introductionunclassified

“…Önceki çalışmalarda, taşıt emisyonlarının çevre [25][26][27], sağlık [28,29], üzerine etkisi, ve karakterizasyonuna [30][31][32][33][34][35] dair çeşitli çalışmalar yapılmıştır. Bizim önceki çalışmalarımızda [5,11,36,37] ise taşıt emisyonu mikro yapı analizleri yapılmıştır. Otomotiv endüstrisinde izlenmesi gereken birçok egzoz dumanı ve kirletici madde vardır.…”

Section: Introductionunclassified

Dizel Yakıtlı Taşıtlardan Salınan Partikül Maddelerin Mikroyapı ve Kimyasal Karakterizasyonu

Güney¹,

Aladağ²

2021

El-Cezeri Fen Ve Mühendislik Dergisi

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Taşıt trafiğinden kaynaklanan egzoz emisyonları, taşıt kullanımı sırasında yakıtların, katkı maddelerinin yanması ve sistemindeki motor parçalarının aşınması nedeniyle havaya salınan parçacıkları ifade eder. Kirliliğin en önemli potansiyel kaynağı taşıt emisyonlarıdır. Dizel yakıtlı araçlar yaygın olarak kullanılmalarından dolayı, ulaştırma sektöründe egzoz gazı emisyonlarını arttırmaktadır. Bu emisyonlar motorlarda motor tipi, yakıt tipi ve yanma süreci gibi farklı şartlarda gaz halinden katılaşarak meydana gelmektedir. Bu motorlarda yanma sırasında yaklaşık 2000 0 C sıcaklık meydana gelirken, egzoz hattında bu sıcaklık 1000 0 C seviyelerine düşmektedir. Çevreye dahil olduğunda ise gerçek atmosferik sıcaklıkta seyretmektedir. Yüksek sıcaklıktan soğuyarak katılaşan partiküller oldukça farklı yapılar içermektedir. Bu çalışmanın amacı, gerçek atmosfere katılan komplex yapıların mikro yapı ve kimyasal özelliklerini ayrıntılı olarak tanımlamaktır. Çalışmada SEM, EDS, XRD ve FTIR teknikleriyle kullanılarak karakterizasyon yapılmıştır. Çalışma sonunda, dizel partikül kompozisyonunda hidrokarbon, azot oksit, karbon monoksit, organik esaslı mineral ve bileşiklerin farklı formlarda havayı kirletmeye devam ettiği tespit edilmiştir.

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“…The average effective pressure increases thanks to the supercharging done by cooling the charge air; higher power, increase in engine efficiency and decrease in specific fuel consumption are provided from engines with small cylinder volumes. However, the improvement of in-cylinder combustion conditions in supercharged engines causes serious decreases in HC and CO emissions, which are incomplete and bad combustion products, and a slight increase in NOx emissions [7,8]. One of the most important and most encountered processes in engineering application areas is the process of providing heat transfer between two or more fluids at different temperatures.…”

Section: Introductionmentioning

confidence: 99%

Determination of Optimum Operating Conditions of Different Types of Intercooler Designs in Supercharged Engines

Öner

Öz

2021

International Journal of Automotive Science and Technology

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In the rapidly developing automotive technology, the efforts to achieve high performance with less fuel consumption is one of the most important issues today. The purpose of the supercharged systems developed for this reason is to send more air into the cylinder. For high engine performance and low exhaust emission values, the intake air temperature, which is heated in the turbo-compressor and has the oxygen concentration (the amount of oxygen in the unit air) decreased, must be kept at certain levels. Therefore, the heated air between the compressor outlet and the cylinder inlet must be cooled. In this study, different types of intercoolers were designed and analyzed with the help of ANSYS Fluent (CFD) program, and optimum conditions were tried to be obtained by comparing them with each other.

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Microstructure and chemical analysis of NOx and particle emissions of diesel engines

Abstract: This study was carried out to investigate the micro and chemical structure of particulate matter and nitrogen oxide from motor vehicle exhaust fumes. In this context, particulate matter microstructure was determined with the help of scanning electron microscope; elements such as C

Cited by 9 publications

References 39 publications

Microstructural Characterization of Particulate Matter from Gasoline-Fuelled Vehicle Emissions

Microstructural Characterization of Particulate Matter from Gasoline-Fuelled Vehicle Emissions

Dizel Yakıtlı Taşıtlardan Salınan Partikül Maddelerin Mikroyapı ve Kimyasal Karakterizasyonu

Determination of Optimum Operating Conditions of Different Types of Intercooler Designs in Supercharged Engines

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