The RASIRC Steamer '02 Series

Integrated unit delivers 15 and 25 slm flow rates

RASIRC SteamerThe RASIRC Steamer '02 series offers a range of flow rates to suit the needs of each customer. The unit encloses a clean steam generator and steam purification assembly in a combined or split cabinet configuration. The split cabinet can be convenient when there is limited space near the furnace.

All RASIRC Steamers increase oxide layer growth rate over torches, vaporizers and bubblers. In contrast to torches, RASIRC Steamers do not require a carrier gas to deliver water vapor to the furnace. This allows users to deliver ultra pure 100% water vapor, speeding the diffusion of water into the oxide film. The result is higher driving force and faster growth rate. This is because the growth rate of the oxide layer is directly related to the effective diffusion coefficient of the water molecules into the oxide layer and the equilibrium concentration in the immediate area.

Growth Rate Comparison shows 18% improvement over Bubbler

In recent tests, the RASIRC Steamer delivered 18% improvement in growth rate over a bubbler, reducing process time by 2 whole days.

Growth Rate Comparison show 7% improvement over Torch

Customer tests show across the board 7% improvement in Steamer growth rate over the torch. By eliminating the carrier gas and blanketing the entire furnace tube in pure water vapor, RASIRC Steamer ensures that even the load end of the furnace tube reaches maximum theoretical growth rate.

RASIRC Steamer uses a non-porous hydrophilic membrane that selectively allows water vapor to pass. Selectivity is significant with up to 1,000,000x relative to nitrogen molecules. In the vapor phase, the membrane only allows water. All other molecules are greatly restricted, so contaminants in water such as dissolved gases, ions, TOCs, particles, viruses, bacteria, pyrons, and metals can be removed n the steam phase.

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Steamer '02

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Growth Rate


Method and Device for Steam Purification and Delivery