Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

An MVWS system (short for a Medium Velocity Water Spray System) is a water-based fire protection system. MVWS systems are used to provide cooling and/or control the burning in many large scale industrial applications, such as in thermal power plants.As their name suggests, medium velocity water spray nozzles are designed to spray water at a medium velocity (i.e. the strength of the spray is weaker than HVWS systems). MVWS systems are best suited for protecting hazards involving light oils – wher

Power Plant Fire Protection System (Part-II of III)This section comprises of water based fire protection system called hydrant system in thermal power plants.Flow Scheme for a Typical 660 MW UnitHydrant SystemHydrant system shall consist of a fire water ring main network of piping along with: Isolation gate valves installed above ground on RCC pedestals around areas to be protected. Hydrant valves (external/internal) Hose cabinets Couplings Branch pipe Nozzles and water monitors along with all a

With the advent of industrialization the demand for power is also on the surge like never before. But augmenting without giving the due consideration for Fire protection and detection system would be detrimental and should not be done.Thermal Power Plants are classified under the ordinary Hazard Occupancy as per Tariff Advisory Committee (TAC) of India. The design and installation of complete fire protection system shall comply with the regulations of TAC. In the absence of TAC regulations, the

For determining power extracted from wind by wind turbine we have to assume an air duct as shown in the figure. It is also assumed that the velocity of the wind at the inlet of the duct is V1 and velocity of air at the outlet of the duct is V2. Say, mass m of the air is passed through this imaginary duct per second.Now due to this mass the kinetic energy of wind at the inlet of the duct is,Similarly, due to this mass the kinetic energy of wind at the outlet of the duct is,Hence, the kinetic ener

For determining power extracted from wind by wind turbine we have to assume an air duct as shown in the figure. It is also assumed that the velocity of the wind at the inlet of the duct is V1 and velocity of air at the outlet of the duct is V2. Say, mass m of the air is passed through this imaginary duct per second.Now due to this mass the kinetic energy of wind at the inlet of the duct is,Similarly, due to this mass the kinetic energy of wind at the outlet of the duct is,Hence, the kinetic ener

How Does Wind Turbine Work?There is an air turbine of large blades attached on the top of a supporting tower of sufficient height. When wind strikes on the turbine blades, the turbine rotates due to the design and alignment of rotor blades. The shaft of the turbine is coupled with an electrical generator. The output of the generator is collected through electric power cables.Working of Wind TurbineWhen the wind strikes the rotor blades, blades start rotating. The turbine rotor is connected to a

Major Parts of Wind TurbineTower of Wind TurbineTower is very crucial part of wind turbine that supports all the other parts. It not only supports the turbine but raises the turbine to sufficient height so that its blades tips would be at safe height during rotation. Not only that, we have to maintain the height of the tower, so that it can get sufficiently strong wind. The height of tower ultimately depends on the power capacity of wind turbines. The tower of the turbines in commercial wind pow

Wind energy simply means kinetic energy of air in motion. Air flows on the earth due to uneven heating of the earth surface by radiant energy from the sun.There are many places on the earth where the wind always presents. As the wind is naturally available mechanical energy, we can use this wind to rotate generators to produce electricity. Basically generating electricity by rotating generators with the help of wind is known as wind energy electricity generation or simply wind power generation o

Wind energy is a renewable and clean source of power that can reduce greenhouse gas emissions and fossil fuel dependence. Wind turbines are machines that convert the kinetic energy of the wind into electrical energy. There are two main types of wind turbines based on the orientation of their axis: horizontal and vertical.What is a Horizontal Axis Wind Turbine?A horizontal axis wind turbine (HAWT) is defined as a wind turbine that has a horizontal or parallel axis of rotation with respect to the

Solar Energy SystemSolar energy is the light and radiant heat from the Sun that control Earth’s climate and weather and protract life. It is a renewable source of energy and originates with the thermonuclear process that transfers about 650,000,000 tons of hydrogen to helium per second. This action produces lots of heat and electromagnetic radiation. The produced heat remains in the sun and is helpful in upholding the thermonuclear reaction and electromagnetic radiation together with visible, in