초록 |
Since microalgae can be used as an alternative energy source, mass production of microalgae is an important issue. Open raceway pond is a most widely used system for microalgae mass cultivation. Sunlight is one of critical factors in cultivation of microalgae. However, the deeper the medium, the weaker the light intensity because of light absorption by water and microalgae. To expose more microalgae to sunlight, vertical mixing should be promoted. In this research, internal structures were applied to improve the vertical mixing in an open raceway pond. Numerical simulation of fluid flow was carried out in the open raceway pond with several sets of the internal structures by computational fluid dynamic (CFD) software, ANSYS CFX 16.2. |