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TZA/00/M/MAG-----B05/DC/004Responsible dept.

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B. ThiryApproved by

O. Van RoyeFormat

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DCDocument Status

ReleasedTitle, Subtitle

Flexibility Analysis for The Turbine ExhaustSteam Duct of the ACC Unit 2 (valid also forUnit1)“Haruvit Combined Cycle Power Plant”

Identification number

WB1-101-000418_DNO4110D0151815_BRev.

BDate

15/01/2013Lang. Sheet

1/15© ALSTOM 2011. All rights reserved. Please consider the environment before printing this document.

Flexibility Analysis for The Turbine Exhaust SteamDuct of the ACC Unit 2 (valid also for Unit1)

Haruvit Combined Cycle Power Plant

Purchaser:

DALIA POWER ENERGIES Ltd.

Contractors:ALSTOM Israel Ltd.ALSTOM Switzerland Ltd.

Project:HARUVIT Combined Cycle Power Plant

Contract No.EPC Contract Haruvit

Cross checkedDepartment Name Date Signature

Revision HistoryRev. Revision Date Created by Checked by Approved by Brief Description

- 14/02/2012 F. Badin B. Thiry O. Van Roye PrelA 29/04/2012 F. Badin QH. Tran O. Van Roye PrelB 15/01/2013 F. Badin B. Thiry O. Van Roye CTD

Description current Revision

Contract Name : TZAFIT

Contract Number : WB1-101-000418Document Title : FLEXIBILITY ANALYSIS FOR THE EXHAUST STEAM DUCT OF THE ACC

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Supplier identificationAlstom Document code

TZA/00/M/MAG-----B05/DC/004Rev.

BDate

15/01/2013LangE

Sheet

2/15© ALSTOM 2011. All rights reserved.

AIR COOLED CONDENSER

FLEXIBILITY ANALYSIS FOR THE EXHAUST

STEAM DUCT OF THE ACC UNIT 2

(valid also for Unit 1)

SPX Ref. Nr. : WB1-101-000418_DNO4110 RB

Doc. Nr. : D0151815_B.doc

B 15/01/2013 FBA BTH OVR CTDA 29/04/2012 FBA TVQ OVR PREL_ 14/02/2012 FBA BTH OVR PREL

Rev Date Edited by Approved by Released by Status Remarks

Product Group : Statistical Commodity No.: SPX Cooling Technologies



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TABLE OF CONTENT

page

1. INTRODUCTION 4

2. METHODOLOGY 4

3. DESIGN BASIS 4

3.1. DESIGN CONDITIONS 4

3.2. LOADINGS 4

3.3. EXPANSION BELLOWS 6

3.4. SUPPORT TYPE AND LOCATION 7

3.5. ANALYSIS PROGRAM 7

4. CONCLUSIONS 7

5. REFERENCES 7

ATTACHMENT A : ALGOR PIPEPLUS PLOTS 9

ATTACHMENT B : GROUND DUCT SUPPORT LOADS AND TURBINE NOZZLE LOADS 12



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1. INTRODUCTION

The purpose of this calculation note is to analyse the flexibility of the exhaust steam duct of the AirCooled Condenser (ACC), to establish the foundations loads and the loads on the connection of thesteam duct with the turbine exhaust duct.

REV.B: the support S6 is blocked in rotation about the axis Y.

2. METHODOLOGY

The analysis is done by means of a piping computer code (see 3.5 hereafter). The ducting model isbased on the information given in the design basis (see 3 hereafter); the geometry reference is the plotplan given in ref 1.The output results (displacements, stresses and applied loads and moments) are thoroughly checkedagainst client specification or design code criteria.

3. DESIGN BASIS

The exhaust steam duct from the turbine terminal point to the Air Cooled Condenser is shownschematically with its main dimensions in attachment A, the reference drawing is the plot plan in ref 1.

3.1 Design conditions:

Design pressure: Full vacuum / 0.49 bargDesign Temperature: 120 °CCorrosion allowance: 1 mmInsulation: a thermal insulation 30 mm rockwool (120 kg/m³) + 1 sheet 1 mm galvanized steeljacket) on the main ground duct inside the turbine building is taken into account in this analysis.Code check: ANSI B31.1 Edition 2007The material is S235 JR or equivalent with an allowable tensile stress of 104 MPa.This document contains the flexibility analysis for the exhaust steam duct for the above mentioneddesign conditions and the following loading conditions.

3.2 Loadings:

3.2.1 Pressure:Full vacuum

3.2.2 Thermal:

Maximum operating temperature: 120 °C.

Assumed erection temperature: 20°C. (considered as to be more conservative than the design ambienttemperature is 27° because the delta T is the base of the calculation)

Assumed thermal displacement of the turbine exhaust device nozzle:

Following turbine nozzle displacements have been taken into account according document inreference [5] and in SPX axis convention :Delta X = 0 mmDelta Y = 0.4 mmDelta Z = 0 mm

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3.2.3 Wind:

The wind load case definition has been established in the steel structure calculation note (reference:SPX document DNO2000 rev D). We use a Cp value of 0.9 for the duct. The wind pressure values aregiven hereafter (computed with a Cp=1 but factored to 0.9 in the duct model) :

3.2.5 Earthquake:

The seismic load case definition has been established in the steel structure calculation note (reference[ 3 ]: SPX document DNO2000 rev D):

Conservatively we have considered the peak accelerations given in figure 5-3 and 5-6 of documentreference 4: Alstom document 1AHA0926277 rev C : Horizontal and vertical design spectrumaccording to SI 413 for low ductility, K = 2.

033 g for both horizontal directions and0.22 g for the vertical direction

These accelerations have been applied in a pseudo static analysis.

3.2.6 Snow:

Not applicable



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3.2.7 Bypass lines:

For the LP bypass nozzle (assumed to be 16”) we considered :

Fx = 3.4 kNFy = 12.1 kNFz =- 3.2 kN

Mx = 7.9 kNmMy = 4.4 kNmMz = 13.8 kNm

Significant displacements of the LP nozzle (mm) :DW: dz = -2.4 mmTH: dx = 3.531 dy=9.117 dz=2.878Seism x : dx=0.899 dy=-0.092 dz=-0.563BYpass case: dx=0.288 dy=0.070 dz=-0.461

For the HRH (IP) bypass nozzle (assumed to be 48”) we considered :

Fx = 36.3 kNFy = 16.1 kNFz = -25.3 kN

Mx = 13.6 kNmMy = 139.2 kNmMz = 116.8 kNm

Significant displacements of the IP nozzle (mm):DW: dz = -1.2mmTH: dx= 3.499 dy=4.534 dz=2.90Seism x : dx=.727 dy=-0.147 dz=-0.608Bypass case: dx=0.360 dy=0.075 dz=-0.501

3.3 Expansion bellows:

Ground ductOne lateral expansion joint with tie rods (in client scope) is installed at the turbine exhaust nozzle.

The lateral stiffness is assumed to be 3000 N/mm. The rotational stiffness is assumed to be 5000 Nm/°(to be confirmed by Alstom).

Risers

For each street, the riser is equipped with one lateral type bellow and one hinge type bellow isforeseen downstream the upper riser elbow.

The lateral expansion joint has a maximum free rotational stiffness of 16000 Nm/° per bellow and amaximum free lateral stiffness of 180 N/mm. The axial stiffness is considered as fully rigid. The lengthof the lateral bellows is 5 m (weight = 4500 kg maximum).

The hinge bellow has a maximum rotational stiffness of 16000 Nm/° and maximum weight 2500 kg.

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3.4 Support type and location:

See attachement A :

Support S2, S3, S4, and S5 are BFB-FFF (*). Support S6 is BFB-FBF. Support S1 is BFB-FBF The supports on the top steam manifold are sliding supports (FBB-BFF), except the last one

which is fixed (BBB-BFF). The supports situated on the second part of the ACC are alsosliding supports. They are not modeled in the flexibility analysis because the don’t have anyimpact on the turbine nozzle loads, nor on the ground duct foundation loads.

(*) legend for supports : F = Free, B = Blocked.The first 3 items are the displacements in direction X,Y,Z.The last 3 items are the rotations around axis X,Y,Z

3.5 Analysis program :

ALGOR PIPEPLUS version 23.01.00.0136

4. CONCLUSIONS

The exhaust steam duct is satisfactory for the design conditions as specified on the previouspages. The complete input and output results of the analysis are available on request.

The stress levels are well below the allowable of the selected duct material.

The axial force (Fy) is slightly exceeding the allowable load on the turbine nozzle during high windconditions, see attachment B.

5. REFERENCES

[1] DWG 0001 General arrangement preliminary status

[2] ALGOR Model Id: tzafit RB

[3] DNO 2000 rev D :” structural steel calculations”

[4] ALSTOM document 1AHA096277 rev C:” Seismic Design of Civil Structures”

[5] ALSTOM document 1BSE502852 rev _:” Pipe actions”

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Attachments

A ALGOR Pipeplus plots

B Ground duct supports loads and turbine nozzle loads Rev B



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ATTACHMENT A

Model plots



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ATTACHMENT B (rev B)

Ground duct supports loads and ACC Ducting to Turbineconnection nozzle loads



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X Y Z X Y Z

S1 1 -1389 29

S2 0 -317

S3 0 -566

S4 0 -461

S5 0 -359

S6 0 -535 1

S1 1 0 29

S2 0 1

S3 0 0

S4 0 1

S5 0 -1

S6 0 0

X Y Z X Y Z

S1 -26 -13 -1022

S2 1 -32

S3 -8 -17

S4 -14 -31

S5 -1 8

S6 5 -16 -29

S1 523 -11 6682

S2 31 -13

S3 147 -18

S4 150 -20

S5 51 -28

S6 148 0 552

Load : Seismic X

Point

Name

Forces ( KN )

Point

Name

Load : Thermal + Friction

Duct Support Foundation Loads

Forces ( KN ) Moments ( KN-m )

Load : Dead Weight

Moments ( KN-m )

Load : Pressure (full vacuum)

REV B



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X Y Z X Y Z

S1 -1 82 21

S2 0 -16

S3 0 -21

S4 0 64

S5 2 -115

S6 0 8 0

S1 0 306 -7

S2 70

S3 0 125

S4 0 101

S5 0 79

S6 0 118

X Y Z X Y Z

S1 424 -15 8383

S2 52 -18

S3 159 -24

S4 189 -28

S5 73 -39

S6 -6 0 304

S1 -1 110 29

S2 0 -22

S3 1 -33

S4 -1 92

S5 2 -164

S6 -1 18 0

X Y Z X Y Z

S1 -6 -6 23

S2 2 3

S3 0 0

S4 0 0

S5 0 0

S6 51 -31 407

Point

Name


Point

Name


Point

Name


Load : Seismic Y

Load : Wind Y

Load : Wind X

Load : Seismic Z

Load : By pass load

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Reference model: Palm Beach

Fx (N) Fy (N) Fz (N) Mx (Nm) My (Nm) Mz (Nm)

Deadweight 0 -2 721 487 - 67 0 0

pressure (full vacuum) 0 0 -1 309 - 385 0 0

Thermal ( at design T) - 12 -30 299 8 711 433 - 5 - 1

Wind X 38 - 134 0 0 42 3

Wind Y 1 478 006 - 38 5 0 0

Seismic X - 77 - 101 0 0 46 - 15

Seismic Y 1 893 398 - 35 5 0 0

Seismic Z 0 599 - 107 15 0 0

By pass loads 22 28 202 9 - 1 45 0

Friction 302 000

COMBINATIONS

a. in normal operation

Combi max.: 0 299 279 9 198 366 0 0

Combi min.: - 12 -335 020 - 822 - 452 - 5 - 1

b. during by pass operation

Combi max.: 22 327 481 9 207 367 45 0

Combi min.: - 34 -363 222 - 831 - 453 - 50 - 1

Allowable : 210 000 500 000 210 000 35 000 10 000 170 000

see note 4

With :

c. with high wind condition

Combi max.: 60 503 487 9 245 372 87 3

Combi min.: - 72 -539 228 - 869 - 458 - 92 - 4

Allowable : 210 000 500 000 210 000 35 000 10 000 170 000

see note 4

d. during a seismic event

Combi max.: 99 918 879 9 320 383 91 15

Combi min.: - 111 -954 620 - 944 - 469 - 96 - 16

Allowable : 210 000 1000 000 210 000 35 000 10 000 170 000

see note 4

Notes:

Seis x = seismic loading case in the X direction.

5. All the values given in this table are in the standard SPX System (Xspx = -Yalstom ; Yspx =

Xalstom ; Zspx = Zalstom )

MIN = minimum value

SRSS = square root of the sum of the squares

DW = deadweight loading case

ACC Ducting to Turbine connection nozzle loads (metric units)

The loading combinations minimum and maximum are based on the following assumptions :

- The seismic, by pass, friction, settlement and wind loading cases are reversible.

- Combi max = DW + MAX (0,thermal) + MAX (0,pressure) + ABS (friction) + ABS (settlement) + ABS (By

pass) + MAX (ABS(Wind x),ABS (Wind y)) or MAX (SRSS (seis x, seis y,seis z))

- Combi min = DW + MIN (0,thermal) + MIN (0,pressure) - ABS (friction) - ABS (settlement) - ABS (By

pass) - MAX (ABS(Wind X), ABS(Wind y)) or MAX (SRSS (seis x, seis y,seis z))

- Combi max = DW + MAX (0,thermal) + MAX (0,pressure) + ABS (friction) + ABS (By pass)

- Combi min = DW + MIN (0,thermal) + MIN (0,pressure) - ABS (friction) - ABS (By pass)

ABS = absolute value

MAX = maximum value

1. the seismic, by-pass, friction and wind loading cases are reversible.

2. The friction load reaction is based on the polish stainless steel plate against Teflon technique for

the sliding supports (friction coefficient around 10%).

3. the friction load is not combined with the seismic/wind loadings.

4. allowables according to Alstom document in reference [ 5 ]

The friction load reaction is based on the polish stainless steel plate against Teflon technique for

The loading combinations minimum and maximum are based on the following assumptions:

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