Performance and Emission Characteristics Analysis of Dual Fuel Compression Ignition Engine Using Natural Gas and Diesel

Ahmed, Salman Abdu; Zhou, Song; Zhu, Yuangqing

doi:10.5541/ijot.316300

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…The effect was attributed to incomplete combustion caused by oxygen deficiency in the combustion chamber. Ahmed et al [17] reported similar results. Karagoz et al [18] obtained similar results and attributed it to the low LHV of the syngas fuel, which is considerably lower than that of diesel fuel.…”

Section: Brake Specific Fuel Consumption (Bsfc)mentioning

confidence: 58%

Experimental Study of the Performance and Emission Characteristics of a Compression Ignition (CI) Engine Using Syngas-Diesel Blend

Gatumu¹,

Ndiritu²,

Gathitu³

2020

JETP

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The main purpose of this study was to investigate the performance and emissions characteristics of the compression ignition engine when operated with several blends of syngas-diesel fuel. The aim is to identify the best conditions of fuel-blend proportion, compression, fuel ignition timing, speed and load under which the engine is to be operated for maximum power output and minimum emissions. Syngas used was generated from a bench-scale gasifier and mixed with air at mixing unit before the mixture is supplied to the engine combustion chamber for the mixing with a controlled amount of neat diesel. The gas was first cleaned and cooled before delivery to the mixing unit. Tests were done for fuel consumption, power output and emissions for each aforementioned condition. It is known, coal has been a major source of energy for many countries of the developed world, especially where coal deposits exist. This situation is expected to persist for a long time to come; more so, in light of the rapid depletion of the world's oil reserves, underdevelopment of conversion equipment for renewable energy and the uncertainty of nuclear energy. However, coal has been the major contributor to global warming and the greenhouse effect. These problems associated with coal have necessitated carrying out of studies under the clean coal technology and green coal programs. Both aimed at reducing its negative environmental impact and health hazard in power and industrial plants, and as an alternative fuel in ICE engines. This is partly achieved through the gasification of existing coal to produce a combustible gas called synthetic gas (syngas). Syngas can meet energy needs in an economical and environmentally friendly way, especially in the areas where coal is available, the price of petroleum fuels is high, or where supplies are uncertain. This study has established that a CI engine using syngas, though generates less power than an engine operated with neat diesel, emits less and fewer emission(s) and therefore is promising and even cost-competitive alternative to the conventional diesel fuel engines. Therefore, this paper has included information on the performance and emissions of CI engine when using syngas-diesel blend and compared it with when the engine is operated on neat diesel.

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Section: Brake Specific Fuel Consumption (Bsfc)mentioning

confidence: 58%

Experimental Study of the Performance and Emission Characteristics of a Compression Ignition (CI) Engine Using Syngas-Diesel Blend

Gatumu¹,

Ndiritu²,

Gathitu³

2020

JETP

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“…CO emisyonları birden çok sebep dolayısıyla ortaya çıkan yanma ürünleridir. Yapılan bu çalışmada, %60 yük dışında tüm yüklerde silindir içerindeki sıcaklığın artan karışım oranıyla birlikte düşmesinin daha az oksitlenmeye sebep olduğu ve bunun bir sonucu olarak da CO oranını arttırdığı düşünülmektedir [33,34]. Düşük yanma sıcaklığı CO oranlarının artmasına sebep olmuştur.…”

Section: Materyal Ve Yöntem (Materials and Method)unclassified

Bir RCCI motorun yanma ve egzoz emisyon karakteristikleri üzerinde benzin ön karışım oranı ve motor yükünün etkisinin incelenmesi

Fırat

Altun

Okcu

et al. 2021

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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Bu çalışmada, RCCI modunda çalışacak şekilde modifiye edilmiş tek silindirli bir dizel motorda biyodizel ve petrol kökenli dizel karışımı ile benzin kullanımının yanma ve egzoz emisyon karakteristiklerine etkisi deneysel olarak incelenmiştir. Çalışmada hacimsel olarak %20 biyodizel ve %80 petrol kökenli dizel karışımından oluşan B20 karışım yakıtı yüksek reaktiviteli yakıt olarak doğrudan silindir içerisine püskürtülürken; düşük reaktiviteli yakıt olarak ta benzin emme kanalına püskürtülmüştür. Deneyler %0 (geleneksel dizel yanma), %15, %30, %45 ve %60 olmak üzere beş farklı ön karışım oranlarında ve sabit motor hızı ile değişik yük şartlarında gerçekleştirilmiştir. Elde edilen verilere göre, %0 ve %20 yükte RCCI şartlarında karışım oranının artması ile silindir içi maksimum basınç değerinin azaldığı, %40 ve %60 yükte ise arttığı belirlenmiştir. Ayrıca, karışım oranının %15 ve %30 olarak kullanımının tüm yüklerde ortalama indike basınç ve termik verimi artırdığı, diğer karışım oranlarında ise önemli bir değişimin olmadığı görülmüştür. RCCI şartlarında motor yüksüz ve %20 gibi düşük yüklerde çalışırken NOx emisyonunda azalma sağlanmış ancak motor yükünün artması ile artış olduğu gözlenmiştir. Bununla birlikte tüm yüklerde karışım oranı artışının duman koyuluğunu azalttığı belirlenmiştir. Özellikle %60 yük durumda ve %60 karışım oranı kullanımı ile duman koyuluğunun %96 oranında azaldığı tespit edilmiştir. %60 yükte RCCI şartlarında CO emisyonunda bir artış olmasının dışında CO ve yanmamış HC emisyon seviyeleri RCCI şartlarında tüm yüklerde karışım oranının artışı ile arttığı görülmüştür.

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“…Dual-fuel engines running natural gas and diesel are currently the subject of numerous studies. The efficient and ecological indicators of compression-ignition engines adapted to run simultaneously on gas fuel and conventional diesel fuel are determined and analysed [4,13,31,30,39]. In these studies, attention is also drawn to the course of the combustion process presented in the form of graphs of heat release rate [1,12,40,44,46].…”

Section: Introductionmentioning

confidence: 99%

Nitrogen oxides concentrations and heat release characteristics of the Perkins 1104D-E44TA dual-fuel engine running with natural gas and diesel

Kurczyński

Łagowski

Pukalskas

2019

The Archives of Automotive Engineering – Archiwum Motoryzacji

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In the near future, natural gas may become a fuel, which will see increased use in powering internal combustion engines. Due to its properties, it can be used to power spark-ignition engines without major obstacles. Yet using natural gas to power compression-ignition engines proves to be more difficult. One of the possibilities are the dual-fuel compression-ignition engines running with gas fuel and diesel fuel, enabling ignition through compression and combustion of gas fuel. The article presents the heat release characteristics of the Perkins 1104D-E44TA engine powered by compressed natural gas and diesel fuel. Characteristics of heat release are an image of the combustion process. They affect the engine performance indicators. The determined heat release characteristics for a dual-fuel-powered engine were compared with the heat release characteristics for a diesel engine under the same operating conditions. An analysis of heat release characteristics was carried in the scope of their influence on the concentration of nitrogen oxides in the exhaust of the tested engine. The effect of the relative amount of heat released and the heat release rate during the combustion process in the Perkins 1104D-E44TA engine cylinder running dual-fuel with CNG+diesel on the concentration of nitrogen oxides in the exhaust, as compared to the values measured when running with diesel fuel only, was demonstrated. Higher share of natural gas in the total amount of energy supplied to the engine cylinders results in greater differences in the course of the combustion process and result in a greater reduction in the concentration of nitrogen oxides in the exhaust of the tested engine.

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Performance and Emission Characteristics Analysis of Dual Fuel Compression Ignition Engine Using Natural Gas and Diesel

Cited by 8 publications

References 27 publications

Experimental Study of the Performance and Emission Characteristics of a Compression Ignition (CI) Engine Using Syngas-Diesel Blend

Experimental Study of the Performance and Emission Characteristics of a Compression Ignition (CI) Engine Using Syngas-Diesel Blend

Bir RCCI motorun yanma ve egzoz emisyon karakteristikleri üzerinde benzin ön karışım oranı ve motor yükünün etkisinin incelenmesi

Nitrogen oxides concentrations and heat release characteristics of the Perkins 1104D-E44TA dual-fuel engine running with natural gas and diesel

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