کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10274914 | 461777 | 2005 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Corrosion studies with a new laboratory-scale system simulating large-scale diesel engines operating with residual fuels
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Particle and deposit characteristics were studied with a new laboratory-scale deposition-corrosion apparatus designed to simulate the particle formation and deposition in large-scale diesel engines. Synthetic ash particles containing V, Ni, and Na are generated with an ultrasonic nebuliser. Total particle mass concentrations varied from 463 to 1739 mg/N m3 and highest concentrations were reached with SO2(g) feed and cold dilution. Mass size distributions at the size range of 0.01-15 μm (aerodynamic size) were unimodal at 1.4 μm. Particle morphology changed dramatically from 1 to 5 μm sized solid particles without SO2(g) feed into flat wet “pools” with SO2(g) feed. It seemed that condensing sulphuric acid had dissolved the particles. Small 70-90 nm spherical particles were also observed with SO2(g) feed. On the other hand, hardly any S was found in the deposits, which indicated that S as SO2(g)/SO3(g) was transported through the deposit pile into the base material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 86, Issue 4, 25 January 2005, Pages 329-352
Journal: Fuel Processing Technology - Volume 86, Issue 4, 25 January 2005, Pages 329-352
نویسندگان
Jussi Lyyränen, Jorma Jokiniemi, Esko I. Kauppinen, Aulis Silvonen,