Hydropower Mechanical Design Handbook

In a hydroelectric plant, no component can be designed in isolation. One decision about penstock diameter changes the water-hammer pressure, which changes the governor timing, which changes the loads on the runner and the thrust bearing. The machinery is a single system - and it is best designed as one.

Most references treat hydropower as separate subjects: the hydraulics apart from the structures, the turbine apart from the gates, the rotating machine apart from the powerhouse that contains it. Practising engineers, though, meet these systems as one integrated plant, in which a choice in one place propagates into loads and constraints everywhere else. Bridging fragmented theory and integrated practice is exactly where sound design - and costly error - is decided.

This handbook follows the water-to-wire chain from the point where water enters the plant to the point where the machinery delivers its power to the electrical side, and treats that chain as a whole. It is quantitative wherever a quantity governs a decision: every governing relationship is developed from stated assumptions, every worked example carries its units through to a boxed answer, and every design value is chosen for reasons you can follow and challenge.

Inside the handbook you will:
• Follow the complete mechanical design sequence from intake and conveyance through the penstock, turbine, controls, and powerhouse to commissioning.
• Size a penstock and its anchor blocks, and predict water-hammer and surge pressures from closure timing.
• Select a turbine from head and flow using specific speed, and set it safely against cavitation using the critical cavitation coefficient.
• Design shafts, runners, bearings, and seals for steady and fluctuating loads, and check critical speed and thrust capacity.
• Analyse speed governing and the load-rejection transient that imposes some of the plant's most demanding loads.
• Lay out gates, inlet valves, the rotating train, cranes, and auxiliary systems, then test, monitor, and maintain the finished machine.

Key topics: applied fluid mechanics and the water-to-wire efficiency chain; hydrological data and energy sizing; intakes and trash handling; penstock structural analysis; water hammer and surge protection; turbine classification, hydraulic design, and performance; cavitation and draft-tube design; mechanical design of rotating components; speed governing and control; gates and hydromechanical equipment; generator mechanical integration; powerhouse layout and auxiliaries; commissioning, testing, and condition monitoring.

Who this book is for: practising mechanical engineers working on hydroelectric plant and advanced students meeting the subject for the first time, assuming a working command of mechanics of materials and fluid mechanics. It equally suits engineers who want a dependable, quantitative desk reference to confirm a design against the standards and site conditions that govern a real project.

Add this integrated handbook to your library and begin working through the mechanical design of a hydroelectric plant, one link of the water-to-wire chain at a time.