Keywords: Renewable energy, Clean energy, Wind energy, Photocatalysis, Hydrogen, Battery, Fuel cell
Wind energy is a clean form of energy that is used to generate electricity by the kinetic energy created by the motion of air. The nacelle is the heart of a wind turbine that integrates several components to convert low-speed incoming rotation into high-speed rotations and electricity thereafter.
Fuel cells enable the direct conversion of chemical energy into electrical energy. The reactants are constantly reacting to produce electricity and water as the by-product. Thermal and water management in these systems poses challenges to the smooth operations of fuel cells. Minimizing the pressure drop in the bipolar plate channels is yet another area of research that seems to be never-ending. The polarization curve considering all the important aspects in fuel cells to optimize the current density is also widely explored. These problems are addressed by computational fluid dynamics (CFD) and we are working to capture all the physics involved in these cutting-edge research areas. Multiphase flows and reactions, electrochemical reactions, flow through porous media, conjugate heat transfer, and pressure velocity coupling have to be coupled to obtain the complete solution for the fuel cell.
Boiling for Power Production
Light Flux Quantification
Clean energy includes processes that are solar light-driven or can be activated in presence of light. Photo responsive such systems are solar irradiation falling onto solar panels, photocatalytic reactor systems, solar concentrators, and artificial light sources such as solar simulators and lamps. The light intensity experienced by the exposed area or the surface is based on the surface characteristics. Parameters such as emission, reflectivity, and absorption and light flux are crucial parameters to deal with in such scenarios. This is doable and is measured using CFD simulations.
Reaction-driven Flows (Water splitting)