Thermal dispersion model of cooling water discharges from industrial activities of steam power plants (PLTU) on the north coast of Paiton, East Java

• Published in: IOP conference series. Earth and environmental science Vol. 429; no. 1; pp. 12022 - 12039
• Main Authors: Fikri, M Y, Atmadipoera, A S, Nurjaya, I W
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.01.2020
• Subjects: Cooling water; Electric power generation; Electricity; Hot water; Industrial areas; Mathematical models; Numerical models; Power plants; Steam electric power generation; Steam power; Water depth; East Java Indonesia; Indonesia
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/429/1/012022

Necessity electricity in the society especially in industrial activities every year there is an increase in demand. The technology that used in production electricity is one of the Steam Power Plant (PLTU), where Paiton Power Plant is one of the largest power plant in Indonesia and can distribute electricity to Java and Bali. The purpose of this research is to know the process of hot water waste distribution from PLTU Paiton either horizontally or vertically with observation method and numerical model. Tidal model validation with observation data has a high correlation value (r = +0,908). Validation model of hot water waste distribution on surface with observation result has RMSE value equal to (e = 0,96). The observation results show the temperature of the hot water waste in front of the outlet is recorded between 30 °C to 40 °C. Vertically, the distribution of hot water waste near the outlet reaches a depth of 5 m and horizontally the thickness becomes thinner at a distance of about 500 m from the outlet mouth. The model result shows that the distribution of hot water waste distribution occurs more broadly when the low tide.