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1、XpheXphe Workshop Workshop(Xphe(Xphe研讨会研讨会研讨会研讨会) ) Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Workshop Goal(研讨会的目的)lPresenting capabilities(演示Xphe的性能)lWorking a series of examples(列举例子)Learn how to use Xphe effectively by(学习怎么样有效的使用Xphe做：) Heat Transfer
2、 Research, Inc. All rights reserved. Confidential: For HTRI member use only.SchedulelMorningPlate-and-frame geometryProcess specificationslAfternoonFluid property specificationsDesign and analysis methods Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Progra
3、m DescriptionXphe is a calculation engine/interface combination that calculates heat transfer and pressure drop performance for plate-and-frame exchangers. Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.OverviewlModule 1 (Plate-and-Frame Geometry)Program cap
4、abilitiesGraphical user interfacelModule 2 (Process Specifications)Rating and simulationsPerformance parameters Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.OverviewlModule 3 (Fluid Property Specifications)Grid propertiesComponent by componentlModule 4 (De
5、sign and analysis methods)User-specified f- and j- curvesCondensationBoiling Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Module 1 Plate-and-Frame GeometryPlate-and-Frame GeometrylGeometry supportedPlate types, passes, port arrangementlGeometry inputPlate
6、typePlate groupPlate configurationPort configurationlDesign mode Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Xphe GeometrylPlate-and-frame constructionRectangular plate with four portslOne or two plate types yielding up to three effective chevron angleslO
7、ne six hot/cold passes Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Xphe GeometrylCocurrent or countercurrent flow within a passlU- or Z-flow for one passlUser-defined or data bank plate geometry Heat Transfer Research, Inc. All rights reserved. Confidenti
8、al: For HTRI member use only.IncrementationlXpheAnalyzes exchanger by dividing it into multiple small piecesSolves heat transfer and pressure drop in each increment using local physical propertieslOverall results integrate incremental resultslIncrementsAllow more accurate calculationsConsider effect
9、s such as maldistribution Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.IncrementationEnd Plates123456110 Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Required InputRequired InputRed outlines on input fields indic
10、ate required inputRed outlines around icons indicate required inputRed arrows indicate subordinate panel containing required input Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Plate GeometrylInternal plate databanklUser-defined plate typeslInput maximumsMa
11、ximum of 12 plate groupsl6 hot/cold passes each with only one channel typel3 hot/cold passes each with two channel typesl2 hot/cold pass each with three channel types Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Plate GeometryChevron angleVertical distance
12、 between portsHorizontal distance between portsEffective heat transfer area Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Plate GeometryChevron angle and area per plate required0.6 mm thickness, by default Heat Transfer Research, Inc. All rights reserved. C
13、onfidential: For HTRI member use only.Port Geometry DataPort diameter and vertical/horizontal distance between ports requiredChannel width andeffective length based on port data Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Plate ConfigurationFlow diagram m
14、atches specified number ofpasses and flow configuration Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Plate ConfigurationPer passNumber of channels per fluid per pass (For uneven passes this number is for smaller number of passes.)TotalTotal number of chann
15、els per fluidUser defined User-specified number of channels for each plate section Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Plate ConfigurationNumber of different channel types Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI me
16、mber use only.Plate ConfigurationMixture of plate typesTotal channels for both fluids Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Multiple Plate TypeslUse one or two plate types to form channelFive plate types maximum for plate packExample: with two plate
17、 types, 3 channel types availablel1/1l1/2l2/2lSpecify arrangement of plates on Plate Configuration panel Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Why Use Multiple Plates?lManufacturers produce finite set of plate types/chevron angleslHeat transfer and
18、pressure drop is function of chevron anglelEffective chevron angle for mixed plate types is average of two chevron angleslUser can balance heat transfer and pressure drop requirements by mixing plate types Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Multi
19、ple Plates ExamplePlate Type 1(e.g., 30 degree)Plate Type 2(e.g., 60 degree)1/11/22/2Effective Chevron Angle304560 Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Port Arrangement Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member
20、 use only.Port ArrangementUse drop-down menu to switch frame/pressure plate between left and right drawing. No effect on calculations. Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Port ArrangementTo change port configuration, right-click any port location
21、Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.DesignlSpecified exchanger duty and process conditionslSome elements of exchanger geometry optimized to meet design constraintsRequired dutyMaximum pressure dropPort velocitylPlate type(s) defined Heat Transfer
22、Research, Inc. All rights reserved. Confidential: For HTRI member use only.Design AlgorithmlTwo design algorithms/strategies availablelSelect desired option on Input Summary panel Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Classic DesignlSpecify case as
23、usuallSelect Classic DesignlRun caseAlgorithm automatically adjusts specific geometry to achieve desired duty within pressure drop constraintsNumber of channels (plates)Number of fluid passesPack configuration (how many channels of each type) Heat Transfer Research, Inc. All rights reserved. Confide
24、ntial: For HTRI member use only.Grid DesignlSpecify case as usuallSelect Grid DesignlSelect geometry to consider on Design Geometry panelGeometry parametersRange of geometrylRun caseGrid of cases is run over specified range of values Heat Transfer Research, Inc. All rights reserved. Confidential: Fo
25、r HTRI member use only.Design GeometryClick check box to enable variation of item in design runSelect different tabs to access all design geometry items Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Design ConstraintsDesign options (Classic or Grid) will no
26、t select a design that violates constraints specified on this panel. Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Design WarningsXphe flags (in Design View) any case that violates constraints specified on this panel, but may still be selected for final des
27、ign Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Design ViewProgram automatically selects best design. Best is smallest area with acceptable overdesign and no constraint violations. User may also select any alternate design.Lines in red indicate runs that
28、violate design constraint (C) or design warning (W). Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Example 1Oil CoolerOil CoolerlOpen Example1.htrilTEMA AEU oil cooler-in. tubes 10 ft longTEMA fouling factors Heat Transfer Research, Inc. All rights reserved
29、. Confidential: For HTRI member use only.Example 1Design Plate Frame Oil CoolerDesign Plate Frame Oil CoolerlSelect , New Plate and Frame ExchangerlSelect Window menu, Tile HorizontallylDrag-and-dropProcessHot fluid propertiesCold fluid properties Heat Transfer Research, Inc. All rights reserved. Co
30、nfidential: For HTRI member use only.Example 1Single-Phase DesignSingle-Phase DesignlCreate plate-and-frame design Change fouling resistanceslHot side 0.00005 Btu/hr ft2 FlCold side 0.0005 Btu/hr ft2 FPositive overdesign required10 psi maximum pressure hot and cold sidesSuggestions:Use plate databan
31、kUse grid design to approximate design Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Session ViewSelect case and right-click to display context menuUse Edit menu, Program Settings to enable/disable log runs in session view Heat Transfer Research, Inc. All rights reserved. Confidential: For HTRI member use only.Module 1 Summary and ConclusionsSummary and ConclusionslXphe performs detailed incremental calculations for most plate-and-frame geometries lDesign mode helps develop approximate designs
