Development and Performance Optimization of an Innovative Separator Block Design for Moisture Separators in Power Plants.

• Forschungsstelle: INNOSUISSE
• Projektnummer: 25787.1 PFIW-IW

Kurzbeschreibung (Deutsch)

Development and Performance Optimization of an Innovative Separator Block Design for Moisture Separators in Power Plants.

Kurzbeschreibung (Englisch)

Abstract (Deutsch)

Chevron type separators (or separator elements) are widely used in the chemical, oil and gas industries to remove liquid droplets from a gas or steam flow. Mist removal is required for several reasons, among which to prevent damage to downstream equipment due to erosion/corrosion and for power plant steam cycle efficiency improvement. A novel design for separator elements has been identified, which promises an excellent separation efficiency. This new designed chevron type moisture separator shall be integrated in an optimum way with a suitable drainage system for the removal of separated moisture. State-of-the-art CFD modelling shall be applied to analyze and understand the physics and separation mechanism of the new separator element design and drainage system, with the particular aim to optimize overall separation efficiency. Performance validation shall be done using a test rig under real operating conditions of wet steam. The current measurement methodology has to be adapted in order to prove accurately the low outlet content of remaining moisture in the dried steam. In that way a high performance separator block shall be developed, optimized and brought at the design phase of being ready to actual market launch. Consequently, manufacturing aspects of serial production of the proposed separator element and drainage system have also to be taken into account during the optimization process. The novel separator block can be used for applications which require to dry efficiently wet steam. In particular, such a high performance separator block allows to design highly compact moisture separator re-heaters (MSR) for power plants that will enhance the competitiveness of this product significantly.

Abstract (Englisch)