Abstract
The soot blowing performance for a wall blower, according to the entering distance of a nozzle from the boiler wall, is evaluated according to a liquid droplet impingement erosion model. This erosion model incorporated the computational fluid dynamics of a jet steam of nozzle, and it uses the pressure and velocity of a jet steam at the furnace wall for several entering distances of the nozzle. A relative erosion rate dependent on the velocity of the jet steam is also introduced. Several cases are compared, as determined according to the entering distance and the number of nozzles. The shaded erosion region, according to the entering distance of the nozzle and the co-injected region, have also been schematized. Specifically, when the entering distance of the nozzle is large, the maximum relative erosion rate is small. However, the soot blowing area is uniformly large, as compared with the case of a small entering distance. This shows that the maximum relative erosion rate is high, but the soot blowing region is small and the shaded regions occur.
| Original language | English |
|---|---|
| Pages (from-to) | 531-536 |
| Number of pages | 6 |
| Journal | Journal of the Korean Society for Precision Engineering |
| Volume | 35 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2018 May 1 |
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All Science Journal Classification (ASJC) codes
- Safety, Risk, Reliability and Quality
- Mechanical Engineering
- Industrial and Manufacturing Engineering
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Performance estimation of adjustable wall blower according to the entering distance of nozzle. / Jang, Ilkwang; Paek, Jae Ho; Jang, Yong Hoon.
In: Journal of the Korean Society for Precision Engineering, Vol. 35, No. 5, 01.05.2018, p. 531-536.Research output: Contribution to journal › Article
TY - JOUR
T1 - Performance estimation of adjustable wall blower according to the entering distance of nozzle
AU - Jang, Ilkwang
AU - Paek, Jae Ho
AU - Jang, Yong Hoon
PY - 2018/5/1
Y1 - 2018/5/1
N2 - The soot blowing performance for a wall blower, according to the entering distance of a nozzle from the boiler wall, is evaluated according to a liquid droplet impingement erosion model. This erosion model incorporated the computational fluid dynamics of a jet steam of nozzle, and it uses the pressure and velocity of a jet steam at the furnace wall for several entering distances of the nozzle. A relative erosion rate dependent on the velocity of the jet steam is also introduced. Several cases are compared, as determined according to the entering distance and the number of nozzles. The shaded erosion region, according to the entering distance of the nozzle and the co-injected region, have also been schematized. Specifically, when the entering distance of the nozzle is large, the maximum relative erosion rate is small. However, the soot blowing area is uniformly large, as compared with the case of a small entering distance. This shows that the maximum relative erosion rate is high, but the soot blowing region is small and the shaded regions occur.
AB - The soot blowing performance for a wall blower, according to the entering distance of a nozzle from the boiler wall, is evaluated according to a liquid droplet impingement erosion model. This erosion model incorporated the computational fluid dynamics of a jet steam of nozzle, and it uses the pressure and velocity of a jet steam at the furnace wall for several entering distances of the nozzle. A relative erosion rate dependent on the velocity of the jet steam is also introduced. Several cases are compared, as determined according to the entering distance and the number of nozzles. The shaded erosion region, according to the entering distance of the nozzle and the co-injected region, have also been schematized. Specifically, when the entering distance of the nozzle is large, the maximum relative erosion rate is small. However, the soot blowing area is uniformly large, as compared with the case of a small entering distance. This shows that the maximum relative erosion rate is high, but the soot blowing region is small and the shaded regions occur.
UR - http://www.scopus.com/inward/record.url?scp=85046547171&partnerID=8YFLogxK
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U2 - 10.7736/KSPE.2018.35.5.531
DO - 10.7736/KSPE.2018.35.5.531
M3 - Article
VL - 35
SP - 531
EP - 536
JO - Journal of the Korean Society for Precision Engineering
JF - Journal of the Korean Society for Precision Engineering
SN - 1225-9071
IS - 5
ER -