Effect of fuel injection strategies and EGR on biodiesel blend in a CRDI engine

Bhowmick, Pathikrit; Jeevanantham, A.K.; Ashok, B.; Nanthagopal, K.; Perumal, D. Arumuga; Karthickeyan, V.; Vora, K. C.; Jain, Ashish

doi:10.1016/j.energy.2019.06.014

Cited by 67 publications

(24 citation statements)

References 37 publications

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“…The use of such a system allows achievement of the goals set through the use of alternative fuels and pollution reduction, at the same time analyzing them more intensively for the specifics of the engine's operating process [26][27][28][29]. Various injection strategies have been used to analyze the use of natural gas/diesel blends in compression ignition engines [30]. Diesel engines can be modified so that natural gas inside the intake manifold is fumigated [31].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Energetic and Ecologic Parameters of Dual Fuels (Diesel–NG and HVO–Biogas) and Conventional Diesel Fuel in a CI Engine

2020

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The Article presents the results of the experimental research and numerical analysis of a compression ignition (CI) engine adapted for running on dual fuels of different composition (diesel and natural gas, diesel and biogas, biodiesel and natural gas, and biodiesel and biogas). The main goal was to find out the impact of different dual fuels on energy performance and emissions depending on the start of injection (SOI) of diesel and the crank angle degree (CAD). Pure conventional diesel fuel and second generation hydrotreated vegetable oil (HVO) (Neste) was used in the research. Natural gas contained 97 vol. % of methane. Biogas (biomethane) was simulated using a methane and carbon dioxide blend consisting of 60 vol. % of methane and 40 vol. % of carbon dioxide. Dual (liquid and gaseous) fuels were used in the tests, with the energy share of liquid fuels accounting for 40% and gas for 60%. The research results have shown that having replaced conventional diesel fuel with dual fuel, engine’s BTE declined by 11.9–16.5%. The use of methane in the dual fuel blend reduced CO2 volumetric fraction in the exhaust gases by 17–20%, while biomethane increased CO2 volumetric fraction by 10–14%. Dual fuel significantly increased CO and HC emissions, but NOx volumetric fraction decreased by 67–82% and smoke by 23–39%. The numerical analysis of the combustion process revealed changes in the ROHR (Rate of Heat Release) that affected engine efficiency and exhaust emissions was done by AVL (Anstalt für Verbrennungskraftmaschinen List) BOOST program.

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Section: Introductionmentioning

confidence: 99%

Comparative Study on the Energetic and Ecologic Parameters of Dual Fuels (Diesel–NG and HVO–Biogas) and Conventional Diesel Fuel in a CI Engine

2020

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“…31 This result is in line with many other research works carried with EGR system. 32,33 Escalating the compression ratio from 16 to 19 had significantly increased the PCP this behavior can be explained by taking close look into Figure 4, which reveals that as the CR increases most of the combustion events occur well before TDC which lead to high PCP. 22 Heat release rate vs. crank angle.…”

Section: Combustion Analysismentioning

confidence: 83%

“…It can be noted that when EGR escalates the mean gas temperature drops, this is because exhaust gas contains inert gases which act as a sink and absorb the heat evolved during the combustion process which lowers the gas temperature. 32,33 Another reason could be the dilution effect of EGR which replaces the intake oxygen and thereby creating an oxygen-deprived environment inside the combustion chamber resulting in incomplete combustion and lesser MGT. [35][36][37] Increasing the compression ratio leads to higher MGT.…”

Section: Combustion Analysismentioning

confidence: 99%

Emission profiling of a common rail direct injection diesel engine fueled with hydrocarbon fuel extracted from waste high density polyethylene as a partial replacement for diesel with some modifications

Duraisamy

Ismailgani

Paramasivam

et al. 2020

Energy & Environment

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A hydrocarbon fuel extracted from waste high-density polyethylene (WHDPE) by catalytic pyrolysis in a batch scale reactor is blended with diesel by 30% vol. (called as D70H30) is tested in a variable compression ratio engine equipped with a common rail system. Experiments were conducted at three compression ratios (16:1, 17.5:1, and 19:1) and exhaust gas re-circulation (EGR) rates (0%, 10%, and 20%) at the engine’s rated power to evaluate its combustion, performance and emission characteristics. The results revealed that, increasing the compression ratio resulted in higher peak cylinder pressure (PCP) and heat release rates (HRR). Introduction of EGR diminished both PCP and HRR peaks. The brake thermal efficiency of D70H30 blend was 4% lower than diesel at same operating conditions which got better at higher compression ratio without EGR. NOx emission was highest when injected at compression ratio 19:1 and at 0% EGR rate which was 6% and 3% higher than diesel and D70H30 blend operated at engine stock settings. In comparison with baseline diesel smoke opacity remained lower at all operating conditions, where lowest smoke emission was recorded at CR19 and at 0% EGR rate. UHC and CO emission followed the similar trend of smoke opacity. Whereas CO2 emission increased with compression ratio and reduced with induction of EGR. It can be concluded from the study that at higher compression ratio and low EGR rates D70H30 blend can be effectively utilized in a CRDi engine.

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“…Bhowmick vd. [19] common rail (tutuculu püskürtme sistemi) direkt enjeksiyonlu bir dizel motorda farklı enjeksiyon stratejileri ve EGR'nin etkilerini araştırmak için deneysel çalışmalar yapmışlardır. Bunun için tamanu (calophyllum inophyllum) biyodizeli üretmişler (CIP10) ve bu yakıtın %10'luk bir karışımını (CIP10) hazırlamışlardır.…”

Section: Introductionunclassified

Biyodizel ve EGR Kullanılan Bir Dizel Motorunda Motor Performansını ve NO Emisyonunu Etkileyen Faktörlerin Taguchi Yöntemi ile Optimizasyonu

Çangal¹,

Ayhan²

2021

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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Araç motorlarında petrol kökenli yakıtlara bağımlı kalındığı sürece çevre kirliliğinin tehlikeli boyutlara ulaşması yadsınamaz bir gerçektir. Ayrıca fosil yakıt kaynaklarının azalması farklı yakıt arayışlarını zorunlu hale getirmiştir. Dolayısıyla günümüzde alternatif yakıtları geliştirme çabaları ve bu yakıtların araç motorlarında kullanılması yaygınlaşmaktadır. Bunun yanı sıra egzoz emisyon standartlarındaki kısıtlayıcı yasalar gereği yenilenebilir alternatif yakıtlarla birlikte emisyon azaltıcı yöntemlerin de kullanılması gereklidir. Bu amaçla bu çalışmada, tek silindirli direkt püskürtmeli ve tam yükte çalışan bir dizel motoruna farklı oranlarda biyodizel (B10, B20 ve B50) ve egzoz gazı resirkülasyonu (EGR) (%10, %15 ve %20) uygulanarak motor performans ve NO emisyonlarındaki değişimler deneysel olarak araştırılmıştır. Deney tasarımının Taguchi optimizasyon yöntemi ile yapıldığı çalışmada L16 ortogonal dizisi kullanılmış, böylece deneyler esnasında zaman ve maliyetten tasarruf edilerek motor performansı ve NO emisyonunun optimizasyonu yapılmıştır. Motor performansı ve NO emisyonu üzerinde etkili faktörler olarak biyodizel, EGR ve devir seçilmiş ve bu faktörlerin farklı seviyeleri kullanılmıştır. Sinyal/Gürültü (S/N) analizi sonucunda motor parametreleri açısından en iyi kombinasyonlar belirlenmiştir. Daha sonra faktörlerin etki dereceleri ANOVA (varyans) analizi ile test edilmiştir. Son olarak doğrulama deneyleri yapılmış ve Taguchi optimizasyonu sonucu elde edilen iyileşmeler standart motor sonuçlarıyla karşılaştırmalı olarak verilmiştir. Motor döndürme momenti ve özgül yakıt sarfiyatı (ÖYS) açısından optimum sonuçlar B20 yakıtında, EGR uygulanmadığında (EGR0) ve 1600 d/d'da elde edilmiştir. Taguchi optimizasyonu sonucu momentte %1,11'lik, ÖYS'de ise %0,67'lik bir iyileşme kaydedilmiştir. NO emisyonunda ise Taguchi optimizasyonu sonucunda %92,3'lük bir iyileşme meydana gelmiştir. ANOVA analizi sonucunda faktörlerin performans parametreleri üzerinde %99 ile %99,99 arasında etkili oldukları saptanmıştır.

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Effect of fuel injection strategies and EGR on biodiesel blend in a CRDI engine

Cited by 67 publications

References 37 publications

Comparative Study on the Energetic and Ecologic Parameters of Dual Fuels (Diesel–NG and HVO–Biogas) and Conventional Diesel Fuel in a CI Engine

Comparative Study on the Energetic and Ecologic Parameters of Dual Fuels (Diesel–NG and HVO–Biogas) and Conventional Diesel Fuel in a CI Engine

Emission profiling of a common rail direct injection diesel engine fueled with hydrocarbon fuel extracted from waste high density polyethylene as a partial replacement for diesel with some modifications

Biyodizel ve EGR Kullanılan Bir Dizel Motorunda Motor Performansını ve NO Emisyonunu Etkileyen Faktörlerin Taguchi Yöntemi ile Optimizasyonu

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