MEPP 439
Hydropower Plant Engineering
3 Cr.
Introduction to hydropower:
Introduction, Sources of Energy, Hydropower development in Nepal, Estimation of hydropower potential, Energy scenario of Nepal, Hydropower development history, Present status of hydropower development, Challenges in hydropower development, Barrier in hydropower development, Government policy and legal provision related to hydropower, hydropower development institution in Nepal
Classification of hydropower projects:
Run-of-river hydropower projects, peaking run-of-river hydropower projects (PRoR), Choice between RoR and PRoR schemes, RoR and PRoR project components and their projects, Storage project, Basin diversion project, Pumped storage projects,
Choice of location of hydro station:
Water availability and land availability, Selection of installed capacity, Selection of type of turbine, Choice of size of generation units, Typical surface hydro power station, Underground power station, Hydropower planning and investigation, Environmental study, Power and energy estimation
Hydraulic system:
Civil components of hydropower plant, Reservoir & storage capacity, Operation of reservoir, Dams & Barrage, Intake, Desilting basin, Power Tunnel/Headrace Tunnel (HRT), Surge shaft, Pressure shaft/Penstock, Protection against water hammer and negative pressure in the penstock, Powerhouse, Tailrace
Constructional detail and working principles of valves:
Requirements & principle of operation, Types & selection criteria of valves and their operation and control
Constructional detail and working principles of hydro mechanical equipments:
Requirements & principle of operation, Types and selection criteria of hydro mechanical equipments and their operation & control
Constructional detail and working principles of turbine and auxiliaries:
Principle of operation & types, Choice, Rating & specification of turbines, Components of turbine & their design, Turbine characteristic, Types of governor- electric & hydraulic.
Working principles, characteristics and operation of auxiliary system:
Oil pressure unit, HP lubrication system, Braking and jacking system, Centralized grease lubrication system (CGL System), Carbon dust collection system for slip rings, Exciters & brake pads, Cooling water system, E.O.T. crane, Ventilation and air conditioning, Compressed air system, Dewatering and drainage system
References:
• Fundamental of Hydropower Engineering by Sanjeeb Baral
• Fundamentals of O & M of Hydropower Plant, complied by Rahul Pandey and R. Senthil Kumar
• Water Power Engineering by MM Dandekar and K N Sharma
• Nigam, P.S., Handbook of hydro engineering. Nem Chand and sons. Roorkee 1999.
• Mosonyi, Emil (1991) Water power development