The types of pumps most often encountered in a refinery or chemical plant can be classified as kinetic or positive displacement pumps. Kinetic Pumps In a kinetic pump energy is added continuously to increase the fluid’s velocity within the pump to values over those in the discharge pipe. Passageways within the pump then…
Here are a few methods through which hydrogen embrittlement can be prevented: Minimizing Contact Between Any Source Of Atomic Hydrogen And Metal: Reducing the amount of metal-to-atomic hydrogen contact can help avoid hydrogen embrittlement. Environmental factors should be managed in potentially corrosive services to prevent reactions on the metal surface from producing hydrogen…
The langlier saturation index (LSI) tells us whether the nature of water is corrosive and scale forming. The langlier saturation index is given by: I0 = PH- PHs PH= The actual PH PHs= Pca +Palk + C PHs= log factor of the calcium hardness expressed in ppm as CaCO3 Palk = Log factor…
Lubrication is a technique in which lubricant is use to reduce friction between rotating parts such as Bearing and shaft. The lubrication system produces cooled, filtered oil for the bearing of the Gas Turbine and the Generator. The lubricating provisions for the turbine, generator, torque converter and accessory gear box are incorporated in…
A Cooling tower is the type of heat exchanger in which water and air are brought into contact naturally or forcefully depending upon the type of cooling tower you are using. The warm water comes in contact with cooled air and this heat is transferred to the air which flows outside of the…
The heat recovery steam generator (HRSG) provides the thermodynamic link between the gas turbines and steam turbines in a combined-cycle power plant. Its basic function is to recover the heat from gas turbine exhaust. This recovered heat will be utilized to heat water to convert the water into steam. This steam will be…
The control oil system of steam turbine is completely separated from the lubricating oil system of steam turbine. A dual pump system is adopted. One is usually operating and the other is stand-by. The type of control oil pump is the variable displacement piston type, driven by AC motor. They are installed beside…
The purpose of the lube oil system is to : Note: The continuous oil supply for each steam turbine and generator bearings must be kept. (Main Oil Pump (MOP) shall be operated.) If it stops, the bearings will be fatally damaged. the technical data of our steam turbine is already explained in this…
The steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft which is connected to a generator. Steam passes from the first to the last stage its pressure drops and the specific volume increases as a result it does…
Gas Turbine is a machine that converts the chemical energy of fuel into mechanical energy which may be used to drive a generator that will produce electric energy with a transformer attached to the Generator to transmit the electricity to the Grid. Uses of Gas Turbine It is mainly used in aircraft, aviation,…
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