Structural Integrity Associates Inc.

Aluminum is of interest for use in heat exchangers and for some structural components in a steam water cycle. Generally, corrosion process is so limited that it does not challenge component integrity, but the corrosion products may transport and deposit, causing problems like deterioration of flow, blockages, efficiency changes and loss of heat transfer. Presently there is insufficient knowledge to define the cycle chemistry conditions under which aluminum can be used in a steam / water cycle. IAPWS recognizes that further research work is needed to improve knowledge in this field and has prepared this document to assist potential investigators to obtain sponsorship. Priority areas for research are:- Definition of the aluminum species in the steam/water cycle of a power plant with aluminum components- Interaction with water treatment chemicals, corrosion products and impurities- Solubility in condensate, feedwater, boiler water and steam- Volatility in boiler water and steam Although encouraging this work, IAPWS is not generally able to provide financial support. The IAPWS contact can provide any further development information and will liaise between research groups Issued by th