Limiting Conditions for Droplet Fragmentation of Stabilized Suspension Fuels
Source abstract
Abstract
The main barrier to the wide use of composite liquid fuels in the energy sector is the significant sedimentation of solid particles during fuel storage and transportation. As a result, the composition of fuel slurries changes quite fast and considerably when yet another portion of fuel is pumped from a storage tank. Stabilizing additives are one of the possible solutions to this problem. The technology of primary and secondary slurry fuel atomization is generally considered promising for obtaining a spray of small fragments (droplets and particles). This way, droplets of liquid components and solid particles can be produced with a size of less than 10 μm. A fuel aerosol with particles and droplets this small burns out rapidly. The most effective secondary droplet atomization technology is based on their microexplosive breakup in combustion chambers by superheating the water in the fuel to exceed its nucleation (boiling) point. As part of this research, we studied the impact of the main stabilizing additives to slurry fuels on droplet breakup behavior: heating time until breakup, breakup delay and duration, and the number, size, and velocities of secondary fragments. Soy lecithin and sodium lignosulfonate were used as stabilizers. The main components of the fuel slurries were water, rapeseed oil, diesel fuel, coal processing waste (filter cake), coking bituminous coal, soy lecithin, and sodium lignosulfonate. Droplets were heated at an ambient gas temperature ranging from 450 to 1050 K until the breakup conditions were achieved. Mathematical expressions were obtained for the relationship between input parameters and the key characteristics of the process. Principal differences and overall patterns of droplet breakup were established for slurries with and without stabilizing additives.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Coal Combustion and Slurry Processing · Environmental and Industrial Safety · Thermochemical Biomass Conversion Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Heat and Mass Transfer Simulation Laboratory, National Research Tomsk Polytechnic University, 30 Lenin Avenue, 634050 Tomsk, Russia
Funding
Tomsk Polytechnic University (TPU) development program, Priority 2030
References (57)
Show source-provided references
1. Human Health and Environmental Impacts of Coal Combustion and Post-Combustion Wastes10.1016/j.jsm.2017.12.007 ↗
2. Temporal Trends and Spatial Variation Characteristics of Primary Air Pollutants Emissions from Coal-Fired Industrial Boilers in Beijing, China10.1016/j.envpol.2016.03.047 ↗
3. Experimental Investigation on Using Emulsified Fuels with Different Biofuel Additives in a DI Diesel Engine for Performance and Emissions10.1016/j.applthermaleng.2017.10.106 ↗
4. Simulation of Co-Gasification of Coal and Wood in a Dual Fluidized Bed System10.1016/j.apt.2020.11.017 ↗
5. Glushkov, D., Nyashina, G., Medvedev, V., and Vershinina, K. (2020). Relative Environmental, Economic, and Energy Performance Indicators of Fuel Compositions with Biomass. Appl. Sci., 10.10.3390/app10062092 ↗
6. Nyashina, G., Legros, J.C., and Strizhak, P. (2017). Environmental Potential of Using Coal-Processing Waste as the Primary and Secondary Fuel for Energy Providers. Energies, 10.10.3390/en10030405 ↗
7. Vershinina, K., Dorokhov, V., Romanov, D., Nyashina, G., and Kuznetsov, G. (2020). Multi-Criteria Efficiency Analysis of Using Waste-Based Fuel Mixtures in the Power Industries of China, Japan, and Russia. Appl. Sci., 10.10.3390/app10072460 ↗
8. Comparative Analysis of Factors Affecting Differences in the Concentrations of Gaseous Anthropogenic Emissions from Coal and Slurry Fuel Combustion10.1016/j.fuel.2020.117581 ↗
9. Studies on CWL with Glycerol for Combustion Process10.1007/s11356-018-3814-0 ↗
10. Viewing Internal Bubbling and Microexplosions in Combusting Metal Particles via X-Ray Phase Contrast Imaging10.1016/j.combustflame.2018.10.019 ↗
11. Experimental and Numerical Investigation of Aerodynamics of a Pneumatic Nozzle for Suspension Fuel10.1016/j.ijheatfluidflow.2019.04.013 ↗
12. CFD Simulation for Secondary Breakup of Coal-Water Slurry Drops Using OpenFOAM10.1016/j.fuproc.2014.12.037 ↗
13. Study on the Stability of Coal Water Slurry Using Dispersion-Stability Analyzer10.1016/S1872-5813(08)60033-X ↗
14. Burning Properties of Slurry Based on Coal and Oil Processing Waste10.1021/acs.energyfuels.5b02881 ↗
15. A Review of Multi Criteria Decision Making (MCDM) towards Sustainable Renewable Energy Development10.1016/j.rser.2016.11.191 ↗
16. Experimental Investigation and Demonstration of Pilot-Scale Combustion of Oil-Water Emulsions and Coal-Water Slurry with Pronounced Water Contents at Elevated Temperatures with the Use of Pure Oxygen10.1016/j.fuel.2020.118692 ↗
17. Char-Diesel Slurry Fuels for Microgeneration: Emission Characteristics and Engine Performance10.1016/j.energy.2020.118225 ↗
18. Analysis of the Useable Properties of Coal-Water Fuel Modified with Chemical Compounds10.1016/j.fuproc.2016.07.007 ↗
19. Organic Coal-Water Fuel: Problems and Advances (Review)10.1134/S0040601516100037 ↗
20. Differences of Two-Component Droplets Breakup at the High Temperatures10.1016/j.joei.2019.02.005 ↗
21. Investigation on the Conditions Leading to the Micro-Explosion of Emulsified Fuel Droplet Using Two Colors LIF Method10.1016/j.expthermflusci.2020.110106 ↗
22. A New Approach to Modelling Micro-Explosions in Composite Droplets10.1016/j.ijheatmasstransfer.2020.120238 ↗
23. Micro-Explosive Droplet Fragmentation of Environmentally Promising Coal-Water Slurries Containing Petrochemicals10.1016/j.fuel.2020.118949 ↗
24. Individual and Synergistic Effects of Modifications of the Carrier Medium of Carbon-Containing Slurries on the Viscosity and Sedimentation Stability10.1016/j.cherd.2022.06.005 ↗
25. Yaws, C.L. (2003). Yaws’ Handbook of Thermodynamic and Physical Properties of Chemical Compounds, Knovel.
26. Performance and Mechanism of Polyacrylamide Stabilizers in Coal Water Slurry10.1016/j.colsurfa.2021.127544 ↗
27. (2009). TAPPI Solid Mineral Fuels—Determination of Gross Calorific Value by the Bomb Calorimetric Method and Calculation of Net Calorific Value. TAPPI Test Methods (Standard No. ISO 1928:2009).
28. ASTM International (2018). Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter, ASTM International.
29. Ibraeva, K.T., Manaev, Y.O., Tabakaev, R.B., Yazykov, N.A., and Zavorin, A.S. (2019). Research of Characteristics and Mineral Composition of Peat of the Tomsk Region Relating to Energy Use. Bull. Tomsk Polytech. Univ. Geo Assets Eng., 330.
30. ASTM International (2016). Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke 1, ASTM International.
31. Antonov, D., Bellettre, J., Tarlet, D., Massoli, P., Vysokomornaya, O., and Piskunov, M. (2018). Impact of Holder Materials on the Heating and Explosive Breakup of Two-Component Droplets. Energies, 11.10.3390/en11123307 ↗
32. Breakup of Heterogeneous Water Drop Immersed in High-Temperature Air10.1016/j.applthermaleng.2017.08.162 ↗
33. Puffing/Micro-Explosion in Composite Fuel/Water Droplets Heated in Flames10.1016/j.combustflame.2021.111599 ↗
34. The Balance between Surface and Kinetic Energies within an Optimal Micro-Explosion10.1016/j.ijthermalsci.2016.04.008 ↗
35. Experimental Investigation of Microexplosion Occurrence in Water in Diesel Emulsion Droplets during the Leidenfrost Effect10.1021/ef501588z ↗
36. The Effect of Fuel Injection Equipment on the Dispersed Phase of Water-in-Diesel Emulsions10.1016/j.apenergy.2018.03.070 ↗
37. Micro-Explosion and Autoignition of Composite Fuel/Water Droplets10.1016/j.combustflame.2019.09.004 ↗
38. Explosive Disintegration of Two-Component Drops under Intense Conductive, Convective, and Radiant Heating10.1016/j.applthermaleng.2019.02.099 ↗
39. Child Droplets Produced by Micro-Explosion and Puffing of Two-Component Droplets10.1016/j.applthermaleng.2019.114501 ↗
40. Distribution of Thermal Energy of Child-Droplets Issued from an Optimal Micro-Explosion10.1016/j.ijheatmasstransfer.2014.06.054 ↗
41. Dispersed Phase Structure and Micro-Explosion Behavior under Different Schemes of Water-Fuel Droplets Heating10.1016/j.fuel.2019.116241 ↗
42. Breakup and Explosion of Droplets of Two Immiscible Fluids and Emulsions10.1016/j.ijthermalsci.2019.04.011 ↗
43. Experimental Study of Micro-Explosion and Puffing of Gas-to-Liquid (GTL) Fuel Blends by Suspended Droplet Method10.1016/j.energy.2020.119462 ↗
44. Experimental Understanding on the Dynamics of Micro-Explosion and Puffing in Ternary Emulsion Droplets10.1016/j.fuel.2018.11.112 ↗
45. Analysis of Statistical Data on Drop Collisions in an Aerosol Flow during Experiments10.1051/epjconf/201919600013 ↗
46. Water Droplet Deformation in Gas Stream: Impact of Temperature Difference between Liquid and Gas10.1016/j.ijheatmasstransfer.2015.01.078 ↗
47. Maximal Spreading of Droplet during Collision on Particle: Effects of Liquid Viscosity and Surface Curvature10.1063/5.0058816 ↗
48. Effects of Dispersed Phase Viscosity on Drop Deformation and Breakup in Inertial Shear Flow10.1016/j.ces.2014.12.012 ↗
49. Physicochemical Features of the Effect of Special Water-Based Fire Retardants on Forest Materials10.1016/j.firesaf.2021.103371 ↗
50. Intensification of Vaporization and Secondary Atomization of Droplets of Fire-Extinguishing Liquid Composition10.1134/S1063785020020029 ↗
51. Identification of Slurry Fuel Components in a Spray Flow10.1016/j.fuel.2022.124353 ↗
52. Experimental Study on the Evaporation and Micro-Explosion Characteristics of Nanofuel Droplet at Dilute Concentrations10.1016/j.energy.2019.06.136 ↗
53. Experimental Study on Evaporation and Micro-Explosion Characteristics of Biodiesel/n-Propanol Blended Droplet10.1016/j.energy.2020.118031 ↗
54. Superheat Limit and Micro-Explosion in Droplets of Hydrous Ethanol-Diesel Emulsions at Atmospheric Pressure and Diesel-like Conditions10.1016/j.energy.2018.04.176 ↗
55. Experimental Investigations on Nucleation, Bubble Growth, and Micro-Explosion Characteristics during the Combustion of Ethanol/Jet A-1 Fuel Droplets10.1016/j.expthermflusci.2017.08.025 ↗
56. Time Evolution of Composite Fuel/Water Droplet Radii before the Start of Puffing/Micro-Explosion10.1016/j.ijheatmasstransfer.2022.122838 ↗
57. The Efficacy of Multiple-Criteria Design Matrix for Biodiesel Feedstock Selection10.1016/j.enconman.2019.111790 ↗