Spreadsheet Description Document for Saturation Temperature Calculation. UC: NA Charge Code: Total Pages:

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1 RPP-38888, Rev. 0 Spreadsheet Description Document for Saturation Temperature Calculation J.Jo CH2M HILL Hanford Group, Inc. Richland, WA U.S. Department of Energy Contract DE-AC27-99RL14047 EDT/ECN: Cost Center: B&R Code: NA 7T600 NA UC: NA Charge Code: Total Pages: cr Key Words: Saturation, Temperature,WCA, Pressure, Waste Abstract: This document describes the methodology for determining the saturation temperature in waste tanks. The saturation temperature is used to calculate neutral buoyancy ratio. TRADEMARK DISCLAIMER. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof or its contractors or subcontractors. Printed in the United States of America. To obtain copies of this document, contact: Document Control Services, P.O. Box 950, Mailstop H6-08, Richland WA 99352, Phone (509) ; Fax (509) , DATE: STA: <..f AUG 292 Date Release Stamp Approved For Public Release A (REV 1)

2 RPP Rev. 0 SPREADSHEET DESCRIPTION DOCUMENT FOR SATURATION TEMPERATURE CALCULATION J.Jo CH2M HILL Hanford Group, Inc. Date Published August 2008 CH2MHILL Hanford Group, Inc. Prepared for the u.s. Department ofenergy Office ofriver Protection Approved for public release; distribution unlimited A (08/05)

3 TABLE OF CONTENTS 1.0 Introduction/Objective Saturation Temperature Spreadsheet Assumption Methodology Computer Software Use and Verification Results References 4 11

4 LIST OF TERMS BtuJhr In HCL PCL HNCL P NCL PNCL Pa psla WCA British thennal units per hour Inch Height ofconvective Layer (Liquid Height) Density ofconvective Layer (Liquid Density) Height ofnon-convective Layer (Solid Height) Pressure at midpoint ofnon-convective Layer Density ofnon-convective Layer (Solids Density) Pascal pound per square inches absolute waste compatibility assessment 111

5 1.0 INTRODUCTION/OBJECTIVE Prior to waste transfers into double shell tanks or single shell tanks, the end state ofthe receiving tank must be evaluated to verify that at least one ofthe following criteria is met. OR b. OR c. OR d. a. Total tank heat load is < 58,000 BtuIhr Non-convective layer thickness is < 12 in. Supernatant depth is < 39 in. The non-condensable gas generation rate at saturation temperature in the nonconvective layer is sufficiently low, such that the ratio ofvertical void fraction profile to the neutral buoyant void fraction (buoyancy ratio) is < 1.0 (Technical Basisfor Tank Bump, RPP-6213). Ifnone ofthe criteria is met, then the waste transfer is prohibited. The first three criteria will be evaluated automatically as part ofthe waste compatibility assessment (WCA). Ifthe first three criteria are not met, then further evaluation ofthe buoyancy ratio will be undertaken. This document describes the methodology for determining the saturation temperature in waste tanks. The saturation temperature is used to calculate neutral buoyancy ratio. A multiuse spreadsheet, Sat Temp.xls (henceforth, the Spreadsheet), incorporates the methodology and will be used to perform the calculation ofsaturation temperatures. 1.1 Saturation Temperature Spreadsheet The saturation temperature spreadsheet consists of4 worksheets as outlined in Table 1-1. Documentation Instructions ChangeLog Sat. Temp Information Information Data Input Calculation This sheet contains the spreadsheet title, version, SVF number, owner and location and the purposeofthe spreadsheet. It also contains a description ofthe methodology used and assumptions for using the spreadsheet. Instructions for use ofspreadsheet. Change log ofchanges and/or corrections made to spreadsheet, required by errors discovered in the spreadsheet and changes made to criteria. Liquid density, liquid height, solid density, and solid height from WCA are entered. Calculates adjusted pressure. User enters temperatures and pressures from the steam table using adjusted pressure. Saturation temperature is calculated. 1

6 2.0 ASSUMPTION The following assumption is used for the spreadsheet: Constant ambient pressure is 1.01E+05 Pa 3.0 METHODOLOGY This section describes the spreadsheet methodology used to perfonn saturation temperature calculation for the non-convective layer. Enter liquid density, liquid height, solid density, and solid height from waste compatibility assessment. Pressure at midpoint ofnon-convective layer is calculated, RPP-6213 (5.1.3): PNCL = Parnbient + (Pcd(glgc)(Hcd + (PNcd(glgc)(HNcd/2 PNCL HCL PCL HNCL PNCL g gc Pressure at midpoint ofnon-convective Layer Height ofconvective Layer (Liquid Height) Density ofconvective Layer (Liquid Density) Height ofnon-convective Layer (Solid Height) Density ofnon-convective Layer (Solids Density) 9.81 m/s 2 1 (kg.m/s 2 )/N Use vapor suppression factor of0.85 (RPP ) to calculate adjusted pressure: Padj(Pa) = PNcJO.85 Converts adjusted pressure from Pascal (Pa) to pound per square inches absolute (psia). Padj(psia) = Padj(Pa)* /l

7 Using the calculated adjusted pressure, input saturated temperatures (Tl, T2) and pressures (P 1, P2) from a steam table. Saturation temperature for waste compatibility assessment is calculated by interpolation. Padj(psia) PI T 1 P2 T 2 Adjusted Pressure Pressure 1 Temperature 1 Pressure 2 Temperature COMPUTER SOFfWARE USE AND VERIFICATION Microsoft Office Excel was used for the spreadsheet. The spreadsheet was verified in accordance with TFC-ENG-DESIGN-C-32, Revision B-6, Spreadsheet Development and Verification. Software and version: Microsoft Office Excel 2003 ( ) SP2 File name: Sat Temp.xls File location: \\Hanford\Data\Sitedata\Harmony, in the folder: V:\Compatibility\Stand Alone Evaluations\Flammable Gas Evaluations\Neutral Buoyancy. File owner: J. Jo Spreadsheet Verification and Release Form number: SVF-1519, RO Software name and version ofany add-in software used: N/A 5.0 RESULTS The Spreadsheet, Sat Temp.xls has been verified as correctly calculating saturation temperature. The methodology is described in Section 3.0 ofthis document and is under the assumptions in Section

8 6.0 REFERENCES RPP-6213, 2006, Technical Basisfor Tank Bump, Rev. 4, CH2M HILL Hanford Group, Inc., Richland, Washington. TFC-ENG-DESIGN-C-32, 2006, Engineering Manual, "Spreadsheet Verification," Rev. B-6, CH2M HILL Hanford Group, Inc., Richland, Washington. HNF-SD-WM-OCD-015, 2008, Tank Farm Waste Transfer Compatibility Program, Rev. 18B, CH2M HILL Hanford Group, Inc., Richland, Washington. 4

9 DISTRIBUTION SHEET To IFrom Page 1 of 1 Distribution Process Engineering Date 8/29/2008 Project TitlelWork Order EDT No. NA RPP-38888, Rev. 0, Spreadsheet Description Document for Saturation ECNNo. N/A Temperature Calculation Name MSIN Text Attach.! Text With All Appendix Only Attach. Only CH2M HILL Hanford Group, Inc. W. L. Adams J. N. Appel T. M. Blaak J. M. Conner J. K. Engeman B. K. Everett T. L. Faust T. G. Goetz J. M. Grigsby J.Jo N. W. Kirch M. A. Knight D.M.Nguyen T. C. Oten J. H. Rasmussen G. R. Tardiff D. J. Washenfelder R. A. Weber S5-07 R2-58 S5-07 R2-l2 S7-90 R2-58 R2-12 S5-07 R2-12 S5-25 R2-58 x H EDT/ECN Only Office ofriver Protection DOE Reading Room H2-53 H