What impact does the degree of steam superheat have on the same heat exchanger?
Thread Content
What impact does the degree of steam superheat have on the same heat exchanger? Can long-term use of steam with very high superheat cause damage to the equipment?
High superheat is measured in relation to the temperature of saturated steam at a certain pressure. Theoretically, the higher the superheat, the greater the thermal energy of the steam, which leads to better heating effects and reduced steam consumption； Excessive overheating means that the temperature difference between the two fluids in your heat exchanger is larger; as a result, the shell side where the steam is located requires a greater degree of thermal expansion capacity. Otherwise, the tube sheet is prone to frequent expansion and contraction, which can lead to deformation or cracking. During the use of a heat exchanger, it is necessary to comply with the temperature and pressure parameters specified for the tube side (as well as the shell side) in its design, and try to avoid exceeding these limits.