Download - BPS 2012-(Department) (1)
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Use to add/remove heat from one fluid to another
別の流体から熱を追加 /削除する
ために使用します
Heaters, coolers, reboilers and condensers
ヒーター、クーラー、リボイ ラーとコンデンサー
Heat Exchangers 熱交換器
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Heat Exchangers Design Sizing Rating
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Drawing
MES Tube layout
Calculation
HTRI Xchanger Suite
Evaluate Design
Modify Drawing
Data Synchronization
Input Process
Data
DrawInitial Tube
Layout
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Drawing of tube layouts is low productivity チューブレイアウトの描画は生産性が低いです。
• Layout resets• Baffles is not shown• Impingement is not
flexible• Limited tube
selection• Unable to store
permanently data
Problems Encountered
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Tube layout drawing and HTRI model are inconsistent
Actual performance of HEx may differ from design
Problems Encountered
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DASH PROCESS
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Why we need this improvement?
What is the target of this study? To increase productivity by reducing the
time in constructing/modifying tube layouts
To increase quality by automating data synchronization
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WHY IS THE MES TUBELAYOUT TOOL LOW IN PRODUCTIVITYAND QUALITY?
ROOT CAUSE ANALYSISMANUAL SYNCHRONIZATION OF DATA BETWEEN CALCULATION AND DRAWING TOOLS
DISCREPANCY BETWEEN HTRI MODEL ANDTUBE LAYOUT
CONSTRUCTING/ MODIFYING OF TUBELAYOUT IS TIME-CONSUMING
CALCULATION AND TUBE LAYOUT TOOLS ARE SEPARATE SOFTWARES
CALCULATION AND TUBE LAYOUT TOOLS ARE SEPARATE SOFTWARES
LIMITED FUNCTIONALITY OF MES TUBE LAYOUT TOOL
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ROOT CAUSE AND COUNTERMEASURE
CALCULATION AND TUBE LAYOUT TOOLS ARE SEPARATE SOFTWARES
LIMITED FUNCTIONALITY OF MES TUBE LAYOUT TOOL
USE THE BUILT-IN TUBE LAYOUT TOOL IN HTRI
USE THE LATEST VERSION OF HTRI SOFTWARE WITHUPDATED TUBE LAYOUT TOOL
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MES Tube Layout HTRI Tube LayoutSeparate software Built-in software
Manual data synchronization
Automatic data synchronization
Manual calculation Automatic calculationLayout reset Instantaneous update
Compare and contrast
Incomplete output labels
Incomplete output labels
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Test cases (controlled) 80 cases overall Time/case (min.) % Time reduction
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Productivity % Time Reduction
Construction of tube layout 33 - 57
Modification
Increase size to 1.5x 67 - 83
Increase tubepass to 2x 77 - 88
Modify tubepass layout to mixed 76 - 83
Adjust OTL to 0.8x 80 - 91
Change to rod impingement 64 - 93
Change baffle cut 60 - 85
Adjust passlane location 69 - 91
Change baffle orientation 63 - 87
Increase inlet nozzle 66 - 88
The time in constructing a layout is reduced drastically
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Quality
Discrepancies in MES tube layout and HTRI model
MES tube layout HTRI modelHTRI tube layout HTRI model
Identical tube layout and HTRI model
Increase accuracy and reliability
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END