Review On A Method Of Reducing The Dryness Fraction Of Steam Using A Spray Nozzle

Steam is an entity that is used in many applications in various industries. Its most important application is probably rotating turbines in power generation. Besides that, steam is used in process industries like sugar mills, textile industries, concrete treatment, chemical plants and sterilization. As the applications vary, so does the quality of steam. The quality of steam is decided by its dryness fraction. Some applications can use wet steam but there are others that require dry or superheated steam. Using wet steam where it is undesired may lead to problems like corrosion and erosion of parts which in turn will lead to repairs, wastage of man hours and increase in the cost. In order to overcome this, it would help to determine the dryness fraction of the steam before using it. Similarly, using superheated steam or dry steam  in areas where unsaturated or dry steam is needed also leads to problems as the enthalpy or heat content of  superheated or dry steam is a lot higher as compared to wet steam. Also, certain applications require a bit of moistness to ensure the operation goes smoothly. This paper is concerned with those applications which require steam of low dryness fraction and suggests a method to reduce the dryness fraction of the steam before it is sent to the point of application. The method includes the use of a spray nozzle to induce atomized water droplets into flowing steam in order to reduce its dryness fraction.