RPP-38888, Rev. 0

Spreadsheet Description Document for SaturationTemperature Calculation

J.JoCH2M HILL Hanford Group, Inc.Richland, WA 99352U.S. Department of Energy Contract DE-AC27-99RL14047

EDT/ECN:Cost Center:B&R Code:

NA7T600NA

UC: NACharge Code: 502298Total Pages: cr

Key Words: Saturation, Temperature,WCA, Pressure, Waste

Abstract: This document describes the methodology for determining the saturation temperature in wastetanks. 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, orfavoring 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) 372-2420; Fax (509) 376-4989.,....----------.......

DATE:

STA: <..f

AUG 292Release StampDate

Approved For Public Release

A-6002-767 (REV 1)

RPP-38888Rev. 0

SPREADSHEET DESCRIPTION DOCUMENT FOR SATURATIONTEMPERATURE CALCULATION

J.JoCH2M HILL Hanford Group, Inc.

Date PublishedAugust 2008

CH2MHILLHanford Group, Inc.

Prepared for the u.s. Department of EnergyOffice of River Protection

Approved for public release; distribution unlimited

A-6004-005 (08/05)

RPP-38888 Rev. 0

TABLE OF CONTENTS

1.0 Introduction/Objective 11.1 Saturation Temperature Spreadsheet 1

2.0 Assumption 23.0 Methodology 24.0 Computer Software Use and Verification 35.0 Results 36.0 References 4

11

BtuJhrInHCL

PCL

HNCL

PNCL

PNCL

PapSlaWCA

RPP-38888 Rev. 0

LIST OF TERMS

British thennal units per hourInchHeight of Convective Layer (Liquid Height)Density of Convective Layer (Liquid Density)Height ofNon-Convective Layer (Solid Height)Pressure at midpoint ofNon-Convective LayerDensity ofNon-Convective Layer (Solids Density)Pascalpound per square inches absolutewaste compatibility assessment

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RPP-38888 Rev. 0

1.0 INTRODUCTION/OBJECTIVE

Prior to waste transfers into double shell tanks or single shell tanks, the end state of the receivingtank must be evaluated to verify that at least one of the following criteria is met.

a. Total tank heat load is < 58,000 BtuIhr

OR b.

OR c.

OR d.

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 of vertical void fractionprofile to the neutral buoyant void fraction (buoyancy ratio) is < 1.0 (TechnicalBasisfor Tank Bump, RPP-6213).

If none of the criteria is met, then the waste transfer is prohibited. The first three criteria will beevaluated automatically as part ofthe waste compatibility assessment (WCA). If the first threecriteria are not met, then further evaluation of the buoyancy ratio will be undertaken.

This document describes the methodology for determining the saturation temperature in wastetanks. The saturation temperature is used to calculate neutral buoyancy ratio.

A multiuse spreadsheet, Sat Temp.xls (henceforth, the Spreadsheet), incorporates themethodology and will be used to perform the calculation of saturation temperatures.

1.1 Saturation Temperature Spreadsheet

The saturation temperature spreadsheet consists of 4 worksheets as outlined in Table 1-1.

Documentation

InstructionsChangeLog

Sat. Temp

InformationInformation

Data InputCalculation

This sheet contains the spreadsheet title, version, SVF number,owner and location and the purpose of the spreadsheet. It alsocontains a description of the methodology used and assumptions forusing the spreadsheet.Instructions for use of spreadsheet.Change log of changes and/or corrections made to spreadsheet,required by errors discovered in the spreadsheet and changes made tocriteria.Liquid density, liquid height, solid density, and solid height fromWCA are entered. Calculates adjusted pressure. User enterstemperatures and pressures from the steam table using adjustedpressure. Saturation temperature is calculated.

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RPP-38888 Rev. 0

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 temperaturecalculation for the non-convective layer.

• Enter liquid density, liquid height, solid density, and solid height from wastecompatibility assessment.

Pressure at midpoint of Non-Convective layer is calculated, RPP-6213 (5.1.3):

PNCL = Parnbient + (Pcd(glgc)(Hcd + (PNcd(glgc)(HNcd/2

PNCLHCLPCLHNCLPNCLggc

Pressure at midpoint ofNon-Convective LayerHeight of Convective Layer (Liquid Height)Density of Convective Layer (Liquid Density)Height of Non-Convective Layer (Solid Height)Density ofNon-Convective Layer (Solids Density)9.81 m/s2

1 (kg.m/s2)/N

• Use vapor suppression factor of 0.85 (RPP-6213 5.14) 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)* 14.696/l 01325

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RPP-38888 Rev. 0

• Using the calculated adjusted pressure, input saturated temperatures (Tl, T2) andpressures (P 1, P2) from a steam table.

• Saturation temperature for waste compatibility assessment is calculated by interpolation.

Padj(psia)

PIT1

P2T2

Adjusted PressurePressure 1Temperature 1Pressure 2Temperature 2

4.0 COMPUTER SOFfWARE USE AND VERIFICATION

Microsoft Office Excel® was used for the spreadsheet. The spreadsheet was verified inaccordance with TFC-ENG-DESIGN-C-32, Revision B-6, Spreadsheet Development andVerification.

• Software and version: Microsoft® Office Excel 2003 (11.8105.8107) SP2

• File name: Sat Temp.xls

• File location: \\Hanford\Data\Sitedata\Harmony, in the folder:V:\Compatibility\Stand Alone Evaluations\Flammable Gas Evaluations\NeutralBuoyancy.

• File owner: J. Jo

• Spreadsheet Verification and Release Form number: SVF-1519, RO

Software name and version of any 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 of this document and is under the assumptions inSection 2.0.

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RPP-38888 Rev. 0

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.

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DISTRIBUTION SHEETTo IFrom Page 1 of 1Distribution Process Engineering Date 8/29/2008Project TitlelWork Order EDT No. NARPP-38888, Rev. 0, Spreadsheet Description Document for Saturation ECNNo. N/ATemperature Calculation

TextText

Attach.!EDT/ECN

Name MSIN With AllOnly

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CH2M HILL Hanford Group, Inc.

W. L. AdamsJ. N. AppelT. M. BlaakJ. M. ConnerJ. K. EngemanB. K. EverettT. L. FaustT. G. GoetzJ. M. GrigsbyJ.JoN. W. KirchM. A. KnightD.M.NguyenT. C. OtenJ. H. RasmussenG. R. TardiffD. J. WashenfelderR. A. Weber

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