Influence of wind and topography on distribution of H2S concentration at Cirata hydropower plant and its impact on corrosion rate

Padjadjaran Earth Dialogues: International Symposium on Geophysical Issues

Suryaningsih, Sri^1 ; Mindara, Jajat Y.^1

Department of Physics, Padjadjaran University, Jl. Raya Bandung-Sumedang Km. 21, Jatinangor, Sumedang, West-Java

45363, Indonesia^1

关键词: Average concentration;    Field studies;    Hydropower plants;    Simulation model;    Three dimensional terrain;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/29/1/012014/pdf
DOI  :  10.1088/1755-1315/29/1/012014

来源: IOP

【 摘 要 】

Emission of hydrogen sulfide (H2S) gas by diffusion and by bubbling into the atmosphere at tailrace of Cirata hydropower plant give an environmental impact on surrounding area, especially on corrosion of metal surfaces. Field study shows that the highest H2S concentration and the highest corrosion rate are located at the location of Tailrace, with an average concentration of 152.63×10-3μg.m-3, and corrosion rate of 0.5010 mm.yr-1. Computational Fluid Dynamics is used to develop a simulation model that replicates the function of wind in the distribution of H2S concentration over the complex three dimensional terrain. Results from this simulation are presented and compared with field study data to determine its impact on corrosion rate.