Combustion of Emulsions in Internal Combustion Engines and Reduction of Pollutant Emissions in Isolated Electricity Systems

被引:1
作者
Pereira, Fabiola [1 ]
Silva, Carlos [1 ]
机构
[1] Univ Tecn Lisboa, IN Ctr Innovat Technol & Policy Res, MIT Portugal Sustainable Energy Syst, Inst Super Tecn, P-1049001 Lisbon, Portugal
关键词
droplet size; water emulsions; internal combustion engines; isolated electricity systems; pollutant emissions; engine efficiency; DIESEL; FUEL; PERFORMANCE; BEHAVIOR;
D O I
10.3390/en15218053
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The aim of this work is the combustion of emulsions in two internal combustion diesel engines, instead of residual fuel oil, to reduce pollutant emissions into the atmosphere and fuel consumption for a cleaner energy transition. A methodology was designed that include the planification and implementation of several experiments in a thermoelectric power plant in Madeira Island, that is part of an isolated electricity production system. In the first place, the planification of experiences was developed and the reference points were created. In this case study, three different operating regimes at the nominal speed of 500 rpm were studied: 7.5 MW, 8.5 MW and 9.5 MW, with a gradual increase of the incorporation of water into the emulsions. A comparative analysis of the potential emulsions in diesel engines, instead of fuel oil, were carried out and two process solutions were created in the 8.5 MW regime with 15% v/v of water and 18% v/v of water. The impact on process parameters and the savings obtained were measured. The best result obtained was the reduction of 56.5% of CO, 96.7% of NO2 and 4.2% of NOx emissions. The specific fuel consumption savings obtained were 2.7%. In conclusion, the experiments and research developed contributed to a more in-depth knowledge about the potential of emulsions in combustion systems; pollutant emissions were reduced; and we designed a new operation regime for the internal combustion engine that are part of an isolated electricity production system.
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页数:29
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共 60 条
[51]  
Sulzer, 1994, TEST BED REPORT NEW
[52]   Determination of Some Important Emissions of Poultry Waste Co-combustion [J].
Topal, Huseyin ;
Amirabedin, Ehsan .
ENVIRONMENTAL AND CLIMATE TECHNOLOGIES, 2012, 8 (01) :12-17
[53]  
Turton R., 2008, Analysis, Synthesis and Design of Chemical Processes, V3rd
[54]  
U.S. Department of Energy, 2005, PUMPING SYSTEMS MATC
[55]   Formation of water-in-oil (W/O) nano-emulsions in a water/mixed non-ionic surfactant/oil systems prepared by a low-energy emulsification method [J].
Usón, N ;
Garcia, MJ ;
Solans, C .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2004, 250 (1-3) :415-421
[56]   Emission characteristics of co-combustion of a low calorie and high sulfur-lignite coal and woodchips in a circulating fluidized bed combustor: Part 1. Effect of excess air ratio [J].
Varol, Murat ;
Atimtay, Aysel T. ;
Olgun, Hayati ;
Atakul, Husnu .
FUEL, 2014, 117 :792-800
[57]   Experimental investigation of unmodified diesel engine performance, combustion and emission with multipurpose additive along with water-in-diesel emulsion fuel [J].
Vigneswaran, R. ;
Annamalai, K. ;
Dhinesh, B. ;
Krishnamoorthy, R. .
ENERGY CONVERSION AND MANAGEMENT, 2018, 172 :370-380
[58]  
Walas S., 1990, CHEM PROCESS EQUIPME
[59]  
Warmburg B.M., 2006, MASTERS THESIS
[60]   Emulsion fuel with novel nano-organic additives for diesel engine application [J].
Yang, W. M. ;
An, H. ;
Chou, S. K. ;
Vedharaji, S. ;
Vallinagam, R. ;
Balaji, M. ;
Mohammad, F. E. A. ;
Chua, K. J. E. .
FUEL, 2013, 104 :726-731