No switch-in operation mode required
Stork spray type deaerators are widely used in both concentrated solar and in parabolic trough solar plants due to their stand-by function. It goes without saying that the Stork deaerator can operate under any variable load resulting from solar intensity variations and clouding effects.
During periods where the deaerator is out of operation for a longer period, a tray-type deaerator needs to switch from normal operation mode to start-up mode in order to reheat the deaerator back up to its operational temperature. This is often achieved by installing a separate sparge pipe. A Stork deaerator on the other hand does not need to switch mode as the deaerator steam rake is already submerged in water so that the water bulk can easily heated up to operating temperature. This offers a faster, more reliable and easier to operate system.
Neglectable cooling down
When the solar plant is no longer in operation no steam is produced so the deaerator would potentially cool down rapidly. The largest heat loss sources are the vents and for this reason these will close automatically during night operation.
Compared to a tray-type design, a Stork spray type deaerator has a smaller heat loss surface due to the single vessel design. When properly insulated, the effect of the cooling down of a Stork deaerator may be neglected.
Name: Ivanpah Solar Electric Generating System
|Features:||World’s largest solar thermal power plant – Power’s Plant of the year 2014|
|Deaerator size:||3 DA: Total length 12788 mm x Dia 3480 mm|
|Year of delivery:||2011|
|Outlet flow:||107 kg/s|
|Operating pressure:||7.9 Barg|
|Gross volume:||112 m3|
|Total weight:||36 tons|
|Design code:||ASME VIII (U-stamp)|