Combustion and exergy analysis of multi-component diesel-DME-methanol blends in HCCI engine

Taghavifar, Hadi; Nemati, Arash; Walther, Jens Honoré

doi:10.1016/j.energy.2019.115951

Cited by 51 publications

(22 citation statements)

References 39 publications

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“…The emission data measured in the tests to obtain the actual combustion equation were used in Eq. ( 12) (da Costa et al, 2019;Taghavifar et al, 2019;Verhelst et al, 2019).…”

Section: Figure 2 Schematic View Of the Control Volumementioning

confidence: 99%

A Study Toward Analyzing the Energy, Exergy and Sustainability Index Based on Performance and Exhaust Emission Characteristics of a Spark-Ignition Engine Fuelled with the Binary Blends of Gasoline and Methanol or Ethanol

Doğan¹,

Yeşilyurt²,

Erol³

et al. 2020

Uluslararası Muhendislik Arastirma Ve Gelistirme Dergisi

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The anxieties regarding global warming upon increasing greenhouse gas emission grades worldwide and the presence of petroleumbased fuels have directed the researchers to focus on the development of biofuels as well as the utilization of reformulated gasoline fuels by adding oxygenated additives resulting in an extensive application to improve fuel properties. In this study, engine performance and exhaust emission tests were performed using pure gasoline and volumetrically 10% ethanol-C2 or methanol-C1/gasoline blends (G100, E10, and M10). The engine experiments for all test fuels were carried out in a single-cylinder, fourstroke, water-cooled, spark-ignition (SI) engine under fixed engine speed (1500 rpm) and various loading conditions (25%, 50%, 75%, and 100%). In the tested engine, the brake specific fuel consumption (BSFC) values of G100, M10, and E10 fuels under full load condition were found to be as 0.279 kg/kWh, 0.296 kg/kWh and 0.307 kg/kWh, respectively. When the exhaust emissions were examined, E10 and M10 fuels were observed to have lesser CO, CO2, NOX, and HC emissions in comparison with pure gasoline. The lowest CO emission was determined as 3.15% for E10 fuel at a 75% load. NOX emissions descended with the increase of engine load in all fuel blends meanwhile the best performance is measured as 908.86 ppm in E10 fuel at 100% load. The minimum HC emission for E10 fuel was measured as 116.36 ppm at a 75% load. Compared with G100 fuel, E10 and M10 blends emitted 39% and 35% fewer HC emissions, respectively at 75% load. Besides, E10 and M10 fuels generated 8% and 5% less CO2 emissions at all engine loads, respectively, when compared to G100 fuel. As a result of thermodynamic analyses; The highest exergy efficiency values were found to be at 21.0% for G100, 17.92% for E10, and 16.85% for M10, respectively. Besides, the energy efficiencies were obtained to be as 30.01% for G100, 28.33% for E10, and 29.90% for M10, respectively. According to the sustainability analysis, E10 fuel performed better results than M10 fuel in order to be an alternative to G100 fuel.

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“…The emission data measured in the tests to obtain the actual combustion equation were used in Eq. ( 12) (da Costa et al, 2019;Taghavifar et al, 2019;Verhelst et al, 2019).…”

Section: Figure 2 Schematic View Of the Control Volumementioning

confidence: 99%

A Study Toward Analyzing the Energy, Exergy and Sustainability Index Based on Performance and Exhaust Emission Characteristics of a Spark-Ignition Engine Fuelled with the Binary Blends of Gasoline and Methanol or Ethanol

Doğan¹,

Yeşilyurt²,

Erol³

et al. 2020

Uluslararası Muhendislik Arastirma Ve Gelistirme Dergisi

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“…The decreased NO X concentration into exhaust gas is achieved by means of: -by infl uence to the operation process into engine cylinder [18][19][20]; -construction and operation parameters changes of high pressure fuel equipment [21][22][23]; -infusion of reagents into exhaust gas during their passing through special reactors [24][25][26];…”

Section: Literature Review / Pregled Literaturementioning

confidence: 99%

Supplying of Marine Diesel Engine Ecological Parameters

Sagin¹,

Kuropyatnyk²,

Zablotskyi³

et al. 2022

Naše more

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The by-pass system of exhaust gas for the engine 6L20 Wartsila has been observed. The requirements of Annex VI MARPOL towards nitrogen oxide concentration in ship engine exhaust gases have been provided. The purpose of research was the determination of diesel 6L20 Wartsila by-pass exhaust gases optimum volume – at this the nitrogen oxide minimal concentration in exhaust gases is assured, the minimal increase (comparing with operation mode without by-pass) – specific effective fuel consumption, supporting of necessary thermal factor diapason of engine cylinders. The research was performed for the exhaust gas by-pass diapason 0…10 % with engine load diapason 0.55…0.85 % from nominal power. Upon experimental results it has been stated that the exhaust gas by-pass usage favors the ecological parameters of ships engine operation modes – by this at the range of exploitation load 0.55…0.85 % from nominal power the nitrogen oxide concentration in exhaust gas is decreased to 1.32….12.97 %. The exhaust gas by-pass impairs the combustion process and favors the increasing of specific effective fuel consumption and increasing the temperature of exhaust gases. The exhaust gas by-pass system effectiveness assessment should be performed by complex estimation of the following engine operation parameters: the nitrogen oxide concentration in exhaust gas, increasing of specific effective fuel consumption(SFOC), the exhaust gas temperature. As optimal degree of exhaust gas by-pass value when the maximum decrease of nitrogen oxide emission at minimal increase of fuel consumption and simultaneous engine thermal factor handling has to be considered.

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“…The variables _ Ex o:fuel and _ Ex dme in Equation ( 18) represent the overall chemical exergy of the input natural gas and the generated DME. 63,64 The solar exergy input is calculated by using _ Q solar , T, and T o that represents the solar energy input and temperature of the absorber in CSP system and of surrounding atmosphere, respectively.…”

Section: Exergy Analysismentioning

confidence: 99%

A novel calcium looping–integrated NGCC power plant configuration for carbon capture and utilization—Comprehensive performance analysis

Pillai

Surywanshi

Patnaikuni

et al. 2021

Intl J of Energy Research

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Energy plays a pivotal role in industrial development of any country. At present, most of the countries are utilizing fossil fuels, mainly coal and natural gas as energy sources for power production. However, these sources emit high amounts of carbon dioxide (CO 2 ) into the atmosphere resulting in global warming. Hence, the fossil fuel-based thermal power plants need to be integrated with CO 2 sequestration and utilization processes for sustainable power production. In this work, four natural gas combined cycle (NGCC) power plant configurations are proposed-two with CO 2 capture and sequestration (single and double calcium looping units) and two with CO 2 capture and utilization (for production of dimethyl ether). Energy, exergy, environmental, and economic analyses are carried out to assess the performance of the proposed novel configurations against the conventional NGCC power plant. These analyses reveal that the NGCC power plant integrated with double calcium looping unit captures 91.32% of CO 2 with an energy penalty of 6.73%. The proposed CO 2 capture and utilization integrated configurations have low electrical power output; however, the conversion of CO 2 to high energy density dimethyl ether (DME) product resulted in overall energy and exergy efficiency gain. The CO 2 capture and utilization configuration integrated with solar energy is able to convert the total captured CO 2 to DME and makes the process sustainable. K E Y W O R D Scalcium looping unit for CO 2 capture, DME production from CO 2 , economic analysis, energy and exergy analysis, NGCC power generation

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Combustion and exergy analysis of multi-component diesel-DME-methanol blends in HCCI engine

Cited by 51 publications

References 39 publications

A Study Toward Analyzing the Energy, Exergy and Sustainability Index Based on Performance and Exhaust Emission Characteristics of a Spark-Ignition Engine Fuelled with the Binary Blends of Gasoline and Methanol or Ethanol

A Study Toward Analyzing the Energy, Exergy and Sustainability Index Based on Performance and Exhaust Emission Characteristics of a Spark-Ignition Engine Fuelled with the Binary Blends of Gasoline and Methanol or Ethanol

Supplying of Marine Diesel Engine Ecological Parameters

A novel calcium looping–integrated NGCC power plant configuration for carbon capture and utilization—Comprehensive performance analysis

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