Learn about the comparison between Francis and Kaplan turbines. Comparison # Kaplan Turbine: 1. Kaplan turbine is a compact unit. 2. For a given head and output Kaplan turbine runs at a higher speed. 3. This is an axial flow turbine. 4. This turbine has a small number of blades (generally 4). 5. Loss of energy due to friction of [...]
In this article we will discuss about:- 1. Characteristics of Water Turbines 2. Governing of Water Turbines 3. Selection. Characteristics of Water Turbines: 1. Head: Reaction turbines of various types can be used for operating heads up to 500 m and Pelton turbines are used for operating heads above 500 m. 2. Specific Speed. 3. Turbine Setting: A Pelton wheel [...]
There are many ways of classifying water or hydraulic turbines, for example, according to the type of flow of water, according to action of water on moving blades, according to head and quantity of water available, after the name of originator and according to the specific speed of the machine. According to the type of flow of water, the water [...]
In this article we will discuss about:- 1. Operation of Steam Turbines 2. Classification of Steam Turbines 3. Compounding. Operation of Steam Turbines: The operation of a steam turbine is based upon the principle that the steam issuing from a small opening attains a high velocity. This velocity attained during the expansion of the steam depends on the initial and [...]
Basically, the wind turbines are of two types namely horizontal axis wind turbines, such as traditional farm windmills used for pumping water and the vertical axis wind turbines, such as the egg beater-style Darrieus model, named after its French inventor. Most large modern wind turbines are horizontal-axis turbines. In horizontal-axis turbines, the axis of rotation is horizontal with respect to [...]
A wind turbine is a rotary device that extracts energy from the wind and converts into rotary mechanical energy. Blowing wind spins the blades on a wind turbine. When the wind blows, a pocket of low pressure air forms on the downwind side of the blade. The low pressure air pocket then pulls the blade toward it, causing the rotor [...]