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8/13/2019 Parsons Legacy Line Sizing Program Design Guide
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8/13/2019 Parsons Legacy Line Sizing Program Design Guide
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8/13/2019 Parsons Legacy Line Sizing Program Design Guide
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PARSONS EGACY /NE S/2/NG PROGRA DES/GNGU/DE
PROCEDURE NO.
PTD-DGS-118
RE.
1
DATE
1130130,
PAGE OF
* 10
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PARSONS EGACY /NE S/2/NG PROGRA DES/GNGU/DE
PROCEDURE NO.
PTD-DGS-118
RE.
1
DATE
1130130,
PAGE OF
4 10
8/13/2019 Parsons Legacy Line Sizing Program Design Guide
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PARSONS EGACY /NE S/2/NG PROGRA DES/GNGU/DE
PROCEDURE NO.
PTD-DGS-118
RE.
1
DATE
1130130,
PAGE OF
5 10
=.<. %bsolute !ipe 7oughness
7efer to 0@hibit < for the &alues of inside pipe roughness for new or clean pipes. Thedefault &alue is '.''<; inch *'.'''<4 foot.
0@hibit < shows the pipe absolute roughness in feet. This &alue should be con&erted toinches before entry in the line sizing program.
=.<.5 !ipe 0qui&alent 8ength
There is no equi&alent length calculation for the two-phase flow computer program. %sdescribed in the /0 2ser3s anual, the two-phase flow calculations are a pointcalculation.
2se the /0 Software !ac1age3s single-phase flow computer program to calculateseparately the equi&alent length for horizontal and &ertical pipes. Di&ide the pipe intosegments so that the effect of change in fluid property, as the result of flashing, isnegligible on pressure drop and flow regime calculations. /hec1 with the processengineer on the effect of downstream flashing.
nput segment length into the /0 Software !ac1age3s two-phase flow program. 7un thecalculation for all segments, inputting the appropriate fluid properties and pipe equi&alentlength.
4.2 Gas F!"# Fow
#rom #igure 4/.5.< select either AgA or AgmA for gaseous flow. %gain, enter &alues asrequired. %lso, add the line length and fittings where applicable. See 0@hibit 5 for a
typical output printout.
4.3 L"$!"# Phase Fow
#rom #igure 4/.5.< select either AlA or AlmA for liquid flow. 0nter &alues as required. %lso,add the line length and fittings where applicable. See 0@hibit = for a typical outputprintout.
%.0 E&'(PLES
%n e@ample for each flow regime is shown in 0@hibits -=.
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PROCEDURE NO.
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DATE
1130130,
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).0 E&HIBITS
The following e@hibits are referenced in this design guide:
0@hibit Title
< 7elati&e 7oughness #actors for Bew /lean !ipes Two-!hase #lowline Sizing5 Gas #luid #lowline Sizing= 8iquid #lowline Sizing
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0@hibit < C 7elati&e 7oughness #actors for Bew /lean !ipes
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0@hibit C Two !hase #lowline Sizing
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0@hibit 5 C Gas #luid #lowline Sizing
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0@hibit = - 8iquid #lowline Sizing
