You are tasked to design a system of turbines for a hydropower station nearby Pittsburgh, USA, producing 99.45 MW. The generators have 8 pairs of poles, and the total head available at the turbine house is 685m. i. ii. iii. iv. V. Determine the rotational speed of the turbine(s). Determine the non-dimensional speed of the system. Which is the most suitable turbine type for this application? Justify your answer. Determine the flow rate into the system and propose a suitable number of impulse or reaction turbines with a specific inlet configuration. Specify the configuration of the required turbine inlet (i.e. number, diameter and velocity of jets in impulse units, or angle of vanes and blades for reaction units) Considering the optimal design, determine the diameter of the unit (i.e. the diameter of the wheel in an impulse unit, or the diameter of the runner in a reaction unit).