Study of low emission homogeneous charge compression ignition (HCCI) engine using combined internal and external exhaust gas recirculation (EGR)

Shi, Lei; Cui, Yi; Deng, Kangyao; Peng, Haiyong; Chen, Yuanyuan

doi:10.1016/j.energy.2005.12.005

Cited by 147 publications

(58 citation statements)

References 17 publications

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“…Based on this review, almost all researchers have obtained simultaneous reduction in negligible amount of NOx and PM, with increase in HC and CO emission compared to S.I and C.I combustion [17][18][19][20][21][22][23][24][25].…”

Section: Discussionmentioning

confidence: 99%

Impact of Engine Emissions From HCCI Engine, An Overview

Devaraj¹

2017

IJMPERD

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Section: Discussionmentioning

confidence: 99%

Impact of Engine Emissions From HCCI Engine, An Overview

Devaraj¹

2017

IJMPERD

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“…Lower particle emissions, especially of nanoparticles, are urgently required to satisfy the increasingly strict engine emission regulations [1,2]. New combustion concepts, homogeneous charge compression ignition (HCCI) [3][4][5], dilute diffuse combustion [6,7], and low-temperature combustion (LTC) [8,9], achieved by introducing high exhaust gas recirculation (EGR) up to 55% [10,11], have been successfully applied to significantly reduce toxic diesel emissions. Longer fuel air mixing progress and lower combustion temperatures due to high EGR are beneficial for simultaneously reducing NO x and smoke [12,13], However, considerable penalties of these technologies still exist in the current situation, such as the deterioration of combustion stability and engine performance due to low oxygen in the Energies 2017, 10, 1888 2 of 13 engine cylinder, and more cooling loss of high EGR [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Numeric Investigation of Gas Distribution in the Intake Manifold and Intake Ports of a Multi-Cylinder Diesel Engine Refined for Exhaust Gas Stratification

Shen

Cui

et al. 2017

Energies

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Abstract:In-cylinder exhaust gas recirculation (EGR) stratification, generally achieved by supplying EGR asymmetrically into intake ports on a four-valve diesel engine, is sensitive to trapped exhaust gas in the intake manifold and intake ports that is caused by the continuous supply of EGR during the valve-close periods of the intake valves. The subject of this study is to evaluate the distribution of trapped exhaust gas in the diesel intake system using commercial Star-CD software (version 4.22.018). Numeric simulations of the intake flow of fresh air and recycled exhaust in the diesel intake system were initialized following previous experiments that were conducted on a reformed six-cylinder diesel engine by supplying CO 2 instead of EGR to the tangential intake port alone to establish CO 2 stratification in the first cylinder. The distributions of the intake CO 2 in the intake manifold and intake ports under the conditions of 1330 r/min and 50% load with different mass flow rates of CO 2 are discussed. This indicates that CO 2 supplied to one intake port alone would escape to another intake port, which not only weakens the CO 2 stratification by diminishing the mass fraction disparity of the CO 2 between the two intake ports of cylinder 1, but also influences the total mass of CO 2 in the cylinder. There is 4% CO 2 by mass fraction in the intake port without CO 2 supply under the condition that the CO 2 mass flow rate is 5 kg/h during the intake process, and 10% CO 2 under the condition of 50 kg/h.

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“…HCCI motorlarda katalitik dönüştürücülere gerek olmaksızın çok düşük NOx emisyonlarının meydana geldiği görülmektedir. Fakat bu motorlarda düşük yanma sıcaklıkları nedeniyle HC ve CO emisyonları yüksektir ve emisyon normlarını sağlayabilmek için bu emisyonlarla ilgili azaltıcı önlemler alınmalıdır [16][17][18][19][20][21][22][23].…”

Section: Gi̇ri̇ş (Introduction)unclassified

Homojen Karışımlı Sıkıştırma Ateşlemeli (HCCI) Bir Motorun Tek Bölgeli Modelleme Yöntemi Kullanılarak Analizi

Yaşar¹

2016

SAUFenBilDer

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ÖZHCCI motorların modellenmesinde sıfır-boyutlu modeller yaygın olarak kullanılmaktadır. Bu modeller tek veya çok bölge içerebilirler. Bununla birlikte, en basit yaklaşım yanmış ve yanmamış gazı içeren tek bölge yaklaşımıdır. Bu tip sıfır-boyutlu modellerde yanma olayı Wiebe fonksiyonu ile modellenmektedir. Bu makalede, HCCI prensibine göre çalışan tek silindirli bir Ricardo Hydra motoru tek bölge yaklaşımı kullanılarak modellenmiştir. Analiz çalışmalarında SPICE (Simulated Petrol Internal Combustion Engine) yazılımının modifiye edilmiş bir versiyonu olan TRICE yazılımı kullanılmıştır. Yanma analizlerinde, HCCI yanma modellerinde standart Wiebe fonksiyonu kullanımının maksimum silindir basıncının yüksek olarak tahmin edilmesi sonucunu doğurması nedeniyle, standart Wiebe fonksiyonunun modifiye edilmiş bir şekli olan Double-Wiebe fonksiyonu kullanılmıştır. Analizler, n-Heptan-Toluen karışımı için üç hava fazlalık katsayısı değerinde gerçekleştirilmiş ve elde edilen sonuçlar bir Avrupa Komisyonu Marie Curie destek programı (FP-6) projesi kapsamında Shell Araştırma Merkezine ait motor test laboratuvarında ölçülen deneysel verilerle karşılaştırılmıştır.Anahtar Kelimeler: HCCI motor, tek-bölgeli modelleme, net ısı yayılımı, dilindir basıncı Analysis of a Homogeneous Charge Compression Ignition (HCCI) engineby using a single-zone modelling method ABSTRACT Zero-dimensional models are commonly used to model HCCI engines. These models may contain single or multi zones. However, the simplest approach is the single-zone containing burned and unburned gases. In these type models, combustion progress is modelled by Wiebe function. In this article, a single-cylinder Ricardo Hydra engine, which is running in HCCI mode, was modelled by using single-zone method. In the analysis, a modified Shell SI engine code called TRICE was used. This code is a modified version of SPICE (Simulated Petrol Internal Combustion Engine) and modified for HCCI engine. In the combustion analysis, a modified Wiebe function called double-Wiebe function was used since standard Wiebe-function tends to over-predict the peak cylinder pressure in HCCI combustion models. The analses were performed for n-Heptane-Toluene blend with three excess air ratios and the results were compared to the experimental data measured in the engine test laboratuary of Shell Research Centre within an European Commission Marie Curie Transfer of Knowledge Scheme (FP6) project.

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Study of low emission homogeneous charge compression ignition (HCCI) engine using combined internal and external exhaust gas recirculation (EGR)

Cited by 147 publications

References 17 publications

Impact of Engine Emissions From HCCI Engine, An Overview

Impact of Engine Emissions From HCCI Engine, An Overview

Numeric Investigation of Gas Distribution in the Intake Manifold and Intake Ports of a Multi-Cylinder Diesel Engine Refined for Exhaust Gas Stratification

Homojen Karışımlı Sıkıştırma Ateşlemeli (HCCI) Bir Motorun Tek Bölgeli Modelleme Yöntemi Kullanılarak Analizi

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