TY  - JOUR
T1  - The Boiler Pipes Failure in Power Plants (South of Baghdad Station)
AU - Liu, Hongfang AU - A. Fadhil, Ahmed AU - H. Ismael, Muataz AU - A. Mahmmod, Adiba AU - Imran, Omar A. AU - N. Farhan, Salah 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 7
SP  - 2187
EP  - 2194
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.2187.2194
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.2187.2194
KW  - Hot corrosion
KW  -high temperatures
KW  -carbon steel
KW  -boiler
KW  -fuel ash
KW  -several problems
AB  - Pipes boilers in power plants leads to big problems and loss of thermal equipment. Through the field
visit to South Baghdad station for electrical power been getting several problems faced by pipes boilers in the
plant. The current study aims to analyze the main causes that lead to the failure of the pipes boilers in South
Baghdad electric power. Failure analysis methods including chemical, mechanical characterizations and visual
examination using optical microscopy in combination using Scanning Electron Microscopy (SEM) equipped.
The results of this research indicate that the main reason behind for this failure tow type of failure first one the
Glue remnants of heavy fuel combustion (Ash) on the outside of the pipes boilers. By examining The chemical
composition of fuel ash is 69% Vanadium Oxide (V<sub>2</sub>O<sub>5</sub>) and 31% Sodium Sulfate (Na<sub>2</sub>SO<sub>4</sub>). These materials are of relatively low melting point between (550-560)&deg;C and the working conditions of these boilers are between
(500-800)&deg;C. The second one flow water inside the pipes boiler contains a high present of the primary ions
distinguished were Bicarbonate proportion (HCO<sup>3-</sup> Chloride(Cl<sup>-</sup>) and Sulfate (SO<sub>4</sub><sup>2-</sup>) where Chloride (Cl<sup>-</sup>) has
been known as aggressive ions. The pH of water was equal to 8.2 or unnecessary condition.
ER  -