Understanding the role of nanoparticle size on energy, exergy, thermoeconomic, exergoeconomic, and sustainability analyses of an IC engine: A thermodynamic approach

Ağbulut, Ümit

doi:10.1016/j.fuproc.2021.107060

Cited by 74 publications

(9 citation statements)

References 88 publications

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“…Brake thermal efficiency is an engine performance parameter that indicates how efficiently the energy delivered by the fuel is converted into mechanical output. 74,75 The BTE value is calculated with the following equation: 11 Where, LHV is the lower heating value of the test fuels and its unit is MJ/kg as like in Table 2.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, instead of fossil energy sources whose reserves are decreasing and polluting the environment, the use of naturefriendly and renewable energy resources has come to the fore. [11][12][13] The worst part of diesel engines in terms of environmental pollution is that they cause high NOx emissions. This has prompted fuel researchers to find oxygenated additives to reduce NOx emissions and eliminate environmental concerns.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, instead of fossil energy sources whose reserves are decreasing and polluting the environment, the use of nature-friendly and renewable energy resources has come to the fore. 11–13…”

Section: Introductionmentioning

confidence: 99%

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Performance and emission behaviors of a CI engine fueled by waste feedstocks at varying compression ratios

Polat

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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The main objective of this study is to observe the effects of compression ratio (CR) variation on the engine performance and exhaust emission characteristics of a single-cylinder diesel engine fueled by waste fusel oil (F), waste cooking oil biodiesel (BD), and waste tire pyrolysis oil (P). For this purpose, Diesel RK software was used and the analyzes were performed at varying CRs of 18.3, 20.3, and 22.3. Analyzes were carried out at 2400 rpm constant engine speed, and varying engine loads (3, 6, 9, and 12 Nm). In the results, it is noticed that as the CR increased, BSFC (Brake Specific Fuel Consumption) value also increased for all test fuels. However, at low loads (3 and 6 Nm), the BSFC value decreased as the compression ratio increased after CR20.3. While the maximum BSFC value was obtained to be 560.55 g/kWh for P20 fuel at 3 Nm for CR20.3, the minimum one was achieved to be 46.76 g/kWh for neat diesel fuel at 12 Nm for 18.3. As the CR increased, the BTE (Brake thermal efficiency) value decreased for all test fuels at nearly all loads. However, at low loads (3 and 6 Nm), it is observed that the BTE improved as the CR increased after CR20.3. While maximum BTE was calculated to be 32.07% for P10F10 fuel at CR18.3 compression ratio at 12 Nm load, minimum one was achieved to be 15.36% for P20 at 3 Nm load for CR20.3. In addition, the NOx increased at all loads as CR increased for all test fuels. The maximum NOx value for P20 was recorded to be 1300 ppm at 12 Nm load and CR22.3. A minimum NOx was detected as 144. 56 ppm for P10F10 at 3 Nm, and CR18.3. In conclusion, the paper has proved that the experimental results are well-fitting with those of simulation software.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance and emission behaviors of a CI engine fueled by waste feedstocks at varying compression ratios

Polat

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Although various researchers have investigated the benefits of adding nanoparticles to diesel and diesel-biodiesel blends, very few studies have investigated the role of the primary particle size in the improvement of combustion and emission characteristics of the fuel (Ağbulut, 2022;Chinnasamy et al, 2019;Dinesha et al, 2021). However, none of the previous work has studied the actual size of particles/aggregates dispersed in diesel/biodiesel and its importance in the reduction of emissions.…”

Section: Introductionmentioning

confidence: 99%

Effect of Titania Nano-additives on Fine and Ultrafine Carbonaceous Emissions during Flame Combustion of Diesel

Jain,

Ambekar,

Thajudeen

2024

Aerosol Air Qual. Res.

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The severe impacts of emissions from combustion necessitate the need for advanced mitigation techniques. This study focuses on experimentally investigating the change in particulate matter (PM) emissions during the flame combustion of diesel blended with varying quantities of titania (TiO2) nano-additives. The initial observations using a Scanning Mobility Particle Sizer showed a reduction in the total number concentration (TNC) of PM emissions for TiO2-nanofuel samples compared to diesel. However, detailed investigations revealed the enhancement in the TNC of ultra-fine particles (UFPs) with mobility diameters less than 100 nm. This indicates the possibility of the emission of nano-additives during flame combustion, which enhances the number concentration of UFPs. The evolution of TiO2 nanoparticles is validated by performing the elemental composition analysis using energy-dispersive X-ray spectroscopy after sampling the PM emissions. A detailed experimental study also revealed the significance of the size and stability of the dispersed nanoparticles in the overall emissions. Ball milling (BM) was used for the size reduction of dispersed nanoparticles to enhance the dispersibility of the nano-additives. BM, when combined with bathsonication (BS), resulted in the highest reduction in the TNC (37.70% for Ti100 BM-BS, 48.46% for Ti150 BM-BS, and 53.27% for Ti200 BM-BS), highlighting the importance of size of the dispersed nanoparticles. The detailed analysis of UFPs showed an increase in the TNC of particulates in sub-23 nm (22.92% for Ti100 BS and 39.16% for Ti100 BM) and super ultra-fine (96.46% for Ti100 BS, 100.83% for Ti100 BM, and 16.73% for Ti100 BM-BS) regions for nanofuel samples in contrast to neat diesel.

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“…Test sonuçlarını kullanarak geliştirdikleri modelin motor performansı ve emisyonlarını belirleme konusunda başarılı olduğunu ifade etmişlerdir. Ağbulut [46] titanyum dioksit nanopartikülü ile gerçekleştirdiği çalışmada partikül boyutunun içten yanmalı motordaki etkilerini incelemiştir. 28, 45 ve 200 nm boyutlarındaki titanyum dioksit nanopartiküllerini kanola metil esteri ve dizel yakıtı karışımına 100 ppm olarak ilave ederek tek silindirli hava ile soğutmalı bir dizel motorunda 1800 rpm motor hızında test etmiştir.…”

Section: Giriş (Introduction)unclassified

Dizel-biyodizel karışımına karbon nanotüp katkısının motor performansı ve egzoz emisyonlarına etkisinin incelenmesi

SÜRER

Solmaz

Yılmaz³

et al. 2022

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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Çevresel kirlenmenin yol açtığı endişelerin giderek artması, içten yanmalı motorlarda daha temiz ve yenilenebilir yakıtların kullanımını arttırmıştır. Biyodizel pek çok ülkede dizel motorlarda alternatif yakıt olarak kullanılmaktadır. Bununla birlikte, dizel yakıtı ile karşılaştırıldığında biyodizelin yüksek viskozitesi ve buna bağlı olarak daha kötü atomizasyon karakteristiği kullanım alanının sınırlı kalmasına neden olmaktadır. Biyodizelin bu özelliklerinin iyileştirilebilmesi amacıyla çeşitli katkı maddeleri kullanımı üzerine araştırmalar gerçekleştirilmiştir. Bu çalışmada, karbon nanotüp katkı maddesinin, biyodizel-dizel yakıtı ile çalışan tek silindirli direkt enjeksiyonlu bir dizel motorunda performans ve emisyon karakteristiklerine etkileri incelenmiştir. Tam yükte motor hızına bağlı olarak gerçekleştirilen deneylerde, termik verim, motor gücü ve torku ile egzoz emisyonları incelenmiştir. Maksimum tork devrinde silindir içi basınç ve ısı dağılım oranı da analiz edilmiştir. Karbon nanotüp katkı maddesinin yanma başlangıcını öne aldığı ve termik verimi iyileştirdiği belirlenmiştir. Maksimum termik verim 100 ppm karbon nanotüp katkısı kullanıldığında %39,3 olarak elde edilmiştir. Karbon nanotüp katkı maddesinin CO, HC ve is emisyonlarını azalttığı ancak motor performansının iyileşmesine bağlı olarak NOx emisyonlarını arttırdığı belirlenmiştir. 100 ppm karbon nanotüp katkısının NOx emisyonlarını yaklaşık %11 arttırdığı, buna karşın CO, HC ve is emisyonları %20, %26 ve %7,9 oranında azalttığı tespit edilmiştir.

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Understanding the role of nanoparticle size on energy, exergy, thermoeconomic, exergoeconomic, and sustainability analyses of an IC engine: A thermodynamic approach

Cited by 74 publications

References 88 publications

Performance and emission behaviors of a CI engine fueled by waste feedstocks at varying compression ratios

Performance and emission behaviors of a CI engine fueled by waste feedstocks at varying compression ratios

Effect of Titania Nano-additives on Fine and Ultrafine Carbonaceous Emissions during Flame Combustion of Diesel

Dizel-biyodizel karışımına karbon nanotüp katkısının motor performansı ve egzoz emisyonlarına etkisinin incelenmesi

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