Governing system is a device or combination of different system & logics which are used to control the speed of a steam turbine. A governor protects the prime mover from over speed & keeps the prime mover speed at or near the desired RPM. When a prime mover drives generatorRead More

An APH is a  heat trap device. Air heater is a heat exchanger in which air temperature is raised by transferred heat from flue gas. Air heater transfer heat from flue gas to air. Air heater is the last equipment in the flue gas path where remaining heat of flueRead More

PREPARATION FOR STARTING Check the Deaerator is filled to normal working level. Check that the control air and electrical supply are available for the instrumentation, leak off equipment and valve. Check that the recirculation valve and isolating valve are open. Check that all the instrumentation tapping points and isolating valveRead More

DEAERATOR AN INTRODUCTION Remove dissolved gases. Highest vessel in the system. Used for heating of feed water. Reduce the amount of steam in the system and hence energy flow to the plant. Extraction steam enters from the bottom of the tanks. Steam passes over the water droplets. As the extractionRead More