Consequence Study of CO2 Leakage in Seawater using Computational Fluid Dynamic (CFD) Approach

The climate change due to the effect of greenhouse gas-CO2 is considered a risk to environment as well as humanity. The promising mitigation action to solve this problem is the implementation of Carbon Capture and Storage (CCS) application. However, major concern identified with CCS, is the likelihood of CO2 leakage and their effect to the marine ecosystem and environment. Therefore, the study of this project involves modeling the CO2 leakage from potential seawater storage and to predict the consequences of CO2 leakage in seawater through evaluating the dissolution rate of CO2 bubble. The leakage scenarios are adopted from the recent QICS experiment in the Scottish sea at Ardmucknish Bay. The modeling approach for the study will be based on Computational Fluid Dynamic (CFD) approach with reference from existing mathematical model. ANSYS Fluent software was used for the simulation are to illustrate the bubble characteristic in terms of size distribution, velocity, bubble dissolution and dispersion, transport and chemical reaction (pH change). All of these factors were analyzed to evaluate the impact of CO2 leak to the local marine environment and to validate the mathematical modeling develop by other researcher using an extensive CFD simulation approach.