Desuperheated steam, with its precise temperature, improves the quality of industrial products or processes, protects downstream equipment from heat related damage and can reduce unscheduled downtime of the production line or improve the efficiency of the downstream heat exchanger. Furthermore, the precisely controlled temperature allows you to start your chemical processes more efficiently.
In a back pressure turbine the desuperheated steam temperature is a function of steam load to the turbine. When the steam temperature gets too high, usually at low turbine loads, desuperheated steam can be used to assure proper operation of the downstream installed process equipment.
Frequently, this downstream equipment consists of heat exchangers that are preferably fed with steam at a temperature as close as possible to the saturation temperature.