Generation of Electrical EnergyThe transformation of energy available in different forms in the nature into electrical energy is called the generation of electrical energy.Energy is available in various forms in the nature such pressure energy in water head, chemical energy in fuels, nuclear energy in radioactive materials, etc. All these forms of energy can be converted into electrical energy by using a suitable arrangement of equipment. A typical arrangement for the generation of electrical energy is shown in the following block diagram.Here, an alternator (an electric generator that generates alternating electrical energy) is coupled to a prime mover (device that ... Read More
A power generating plant which has gas turbine as the prime mover for the generation of electrical energy, is called the gas turbine power plant. The block diagram of a typical gas turbine power station is shown in the figure.In a gas turbine power plant, natural air is used as the working agent. The air is compressed with the help of a compressor and fed to a combustion chamber where heat is added to this compressed air, which increases the temperature of the air. The heat to the compressed air is added either by burning fuel in the combustion chamber ... Read More
Water TurbineIn a hydroelectric power plant, a device which is used to convert the energy of falling water into mechanical energy is known as water turbine. There are two types of water turbines used in a hydroelectric power plant viz. −Impulse TurbineReaction TurbineImpulse TurbineIn an impulse turbine, the entire pressure of water is converted into kinetic energy in a nozzle and the velocity of the water jet drives the turbine wheel. Impulse turbines are used for high heads. The pelton wheel is an example of the impulse turbine. It consists of a wheel fitted with elliptical buckets along its periphery. ... Read More
An electric power generating station in which the chemical energy of diesel is converted into electrical energy is known as diesel power plant. In other words, the diesel power plant is a power generating plant in which diesel engine is used as the prime mover for the generation of electrical energy.Schematic Diagram and Working of Diesel Power PlantThe schematic arrangement of a typical diesel power plant is shown in the figure given below.In a diesel power plant, the diesel engine is used as the prime mover to drive an alternator. The diesel (fuel oil) burns inside the engine and the ... Read More
Thermal Power PlantA generating station which converts the heat energy of combustion of coal into electrical energy is called a thermal power plant or steam power station.Schematic Arrangement of Thermal Power PlantThe thermal power plant has many arrangements for proper and efficient working. The schematic of a modern thermal power plant is shown in the figure. This whole schematic arrangement can be divided into the following segments −Coal and Ash Handling PlantThe coal is transported to the site of power plant from the coal mines by rail or road and it is stored in the coal storage plant. From the ... Read More
To reduce array's dimension by one, use the np.ufunc.reduce() method in Python Numpy. Here, we have used add.reduce() to reduce it to the addition of all the elements. To initialize the reduction with a different value, use the "initials" parameter. A universal function (or ufunc for short) is a function that operates on ndarrays in an element-by-element fashion, supporting array broadcasting, type casting, and several other standard features. That is, a ufunc is a “vectorized” wrapper for a function that takes a fixed number of specific inputs and produces a fixed number of specific outputs.StepsAt first, import the required library ... Read More
To return the next floating-point value after a value towards another value, element-wise., use the numpy.nextafter() method in Python Numpy. The 1st parameter is the value to find the next representable value of. The 2nd parameter is the direction where to look for the next representable value.The function returns the next representable values of x1 in the direction of x2. This is a scalar if both x1 and x2 are scalars.The out is a location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated ... Read More
To return the next floating-point value after a value towards another value, element-wise., use the numpy.nextafter() method in Python Numpy. The 1st parameter is the value to find the next representable value of. The 2nd parameter is the direction where to look for the next representable value.The function returns the next representable values of x1 in the direction of x2. This is a scalar if both x1 and x2 are scalars.The out is a location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated ... Read More
To change the sign of a value to that of another, use the numpy.copysign() method in Python Numpy. The 1st parameter of the copysign() is the value to change the sign of. The 2nd parameter is the sign to be copied to 1st parameter value.The out is a location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. A tuple (possible only as a keyword argument) must have length equal to the number of outputs.The condition is broadcast over the input. ... Read More
To reduce array’s dimension by one, use the np.ufunc.reduce() method in Python Numpy. Here, we have used add.reduce() to reduce it to the addition of all the elements. To initialize the reduction with a different value, use the "initials" parameter.A universal function (or ufunc for short) is a function that operates on ndarrays in an element-byelement fashion, supporting array broadcasting, type casting, and several other standard features. That is, a ufunc is a "vectorized" wrapper for a function that takes a fixed number of specific inputs and produces a fixed number of specific outputsStepsAt first, import the required library −import ... Read More