Effects of 100-K water plant expansion on Panellits and orifices

Technical Report · Wed Dec 02 04:00:00 EST 1959

DOI:https://doi.org/10.2172/10171793· OSTI ID:10171793

Stepnewski, D D

The information reported here was requested by M.H. Schack, Facilities Engineering Operation. It pertains to the 100-K water plant expansion Project CG-775. In this project, cooling water pumping capacity will be increased from 178,000 GPM existing to 188,000 GPM and 200,000 GPM for five and six modified pumps respectively. Effects of increased through-put on process tube flow metering elements and on the reactor Panellit gauges have been examined. This information was required to determine cost of modifications if any were required. It was understood the precision of the cost estimate was to be about 40 percent. As a result of the increased process water flow through K reactor, no modifications are necessary to the orifices or venturis. The Panellits will require a mechanical adjustment. The need for such an adjustment already exists and the work has already been planned. If the maintenance proposal is approved, no expenditure of money for Panellits should be required in conjunction with the pump expansion. In some cases it appears that a TAI limit of 130 C may not be met by existing orifices with increased flow rates. However, in all these cases, the 130 C TAI limit could not be met by existing flow rates. From the standpoint of other orifice criteria checked, critical flow, minimum Panellit pressure on cap or pigtail failure, and velocity to cause erosion, the existing orifices and venturis appear adequate.

• Research Organization: General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 10171793
• Report Number(s): HW--62816; ON: DE94016262
• Country of Publication: United States
• Language: English

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