What is STEAM MASTER

Thermoflow, Inc.

While STEAM PRO is the design program for conventional steamcycle plants, STEAM MASTER is the associated simulation program foroff-design calculations.

Use STEAM MASTER to evaluate designs at various ambient conditions and loads.

All STEAM MASTER hardware inputs has automatically been initialized based on the design,which makes it possible to perform calculations by just changing a few parameters.

Since STEAM MASTER hardware inputs are editable, the model may be fine tuned to matchan existing plant or vendor data.

In combination with PEACE (Plant Engineering and Construction Estimator), STEAM MASTER provides engineering details and cost estimation.

WHAT IS STEAM MASTER?

STEAM MASTER

Open Files

Load existing STEAM MASTERfile or import STEAM PRO file.

Activating the STEAM MASTER programwill display this input screen for selectingthe desired file.

All STEAM MASTER models are based on aSTEAM PRO design.

STEAM MASTER will allow the user to dooff-design calculations, such as part loadand varying ambient conditions.

STEAM MASTER

Input TopicsAll the main topics arearranged horizontally tounderline the fact that,contrary to design inSTEAM PRO, off-design inSTEAM MASTER has nonatural order of editingthe topics.

At any time during the session the user canpress compute to activate the calculation.

The input screens apply graphicaldisplays to ease the use of the program.

The user may goback to STEAM PROto redesign theplant if necessary.

“Green” topicsare available forPEACE licensesonly, and theirinputs primarilyimpacts the costcalculations.

STEAM MASTER

Editing Inputs

Adjust fuel input forpart load calculations.

Select the appropriateplant control parameter.

Confirm actualambient conditions.

Specific help is always available for the highlightedinput through the Guidance window.

STEAM MASTER

Detailed Inputs

Select the appropriate steam turbine control method.

Set desired pressureand temperature forthe controls.

Each main topic holds a set of input tabs for sub topics related to themain topic. E.g. highlighted main topic is Steam Turbine. Sub-topics ofthe Steam Turbine are ST Controls, Stage Groups & Controls, etc.

Each sub-topic tab letsthe user set inputs forthat specific sub topic.

Again notice the guidancefor the highlighted input.

STEAM MASTER

Hardware Models

STEAM MASTER is based on hardware models with editable sizeand dimensions. This allows theuser to adjust values to match anexisting plant or a vendor’s data.

Since STEAM MASTER applieshardware models the heat balancecalculations will reflect any changein the hardware.

Cost of the plant will also berecalculated taking the changesinto account.

Main boiler dimensionsare editable for theuser to input data.

STEAM MASTER

Hardware Details

Graphical displays help theuser visualising the tubeand tube bundle geometry.

A pulldown listallows forselectionof the desiredelementof theboiler.

Even details of tubebundle design suchas tube length,bundle width,number of rowsand tube diametermay be edited.

This flexibilityallows the user tomatch known plantdata.

Selection of different materialsis available as well.

Different fin-tube typesare available: Bare, Solidfins and Serrated fins.

Economiser (ECO) has beenselected as example.

STEAM MASTER

Program OptionsCommon unit systemsfrom around the worldare supported by STEAM MASTER.

Also the steam property formulation may be selected.

Available formulations:

Thermoflow Proprietary (STQUIK)

IFC-67 (previous ASME standard from 1967)

IAPWS-IF97 (current ASME standard from 1997)

Compute will activatethe calculation engineand (after convergence)display the outputsfrom the calculation.

STEAM MASTER

Output TopicsOutput is displayed in three groups: Graphics (graphicaldisplay of thermodynamic results), Text (text and tables ofsame), and PEACE (size, weights and cost).

Each topic holds a large number of tabs each describing partof the plant results.

Plant Summarydisplays themain output.Details can befound on thesubsequenttabs.

STEAM MASTER

Graphics OutputDetailed results for the steam turbine displaying steam conditionsat the steam turbine inlets and conditions of all extractions.

Desired values are met through the STcontrol (MVL) and boiler control (sprays).

STEAM MASTER

Text OutputText display of the outputsis organized in a way togive the user both a goodoverview and detailedinformation about theplant performance.

At any time the user maygo back to edit the inputs.

Plant Summary willgive the main plantdata, whereas thesubsequent tabs willdisplay more detailedinformation.

STEAM MASTER

Tables OutputThe Tables tab holds data for allthe components in the plant asseen on the left.

By highlighting the desired plantcomponent, data for thatcomponent will be displayed.

Note that some of thecomponents are characterized byabbreviations, e.g. FWH is feedwater heater, ECO is economiser,CS is convective superheater andWCC is water cooled condenser.

Furthermore a table describingthe fuel and a table with steamcycle streams are available.

Each table can be saved as a.CSV file, which can be loadedinto Excel.

Multiple runs may be performed applying the ThermoflowMacro for studies of parameter variations.

STEAM MASTER

PEACE Output - Schematics

HP turbine

IP turbine

Two double-flowLP turbines

Generator

Schematics showing the main components in the plantare selected through a Schematics List. Examples are:Site Plan, Boiler, Steam turbine (as shown), Condensers,Cooling towers, Feed-water heaters and pumps.

Steam turbinemain dimensions

Displayed is theelevation view ofthe steam turbine.

STEAM MASTER

PEACE Output – Equipment Data

Each tab represents amajor part of the powerplant. Selected for displayis the steam turbine.

The tables will displaydetailed information aboutsizes and weight of theselected element or groupof elements of the plant.

If the selected equipment (in this case Steam Turbine) holds sub-elements,each of those elements will have equipment data tables of their own.

STEAM MASTER

PEACE Output – Cost Report

Each tab represents a part of the total cost ofthe power plant.Selected for display isthe SpecializedEquipment.

The tables will displaydetailed informationabout equipment andlabor cost.

Project Cost Summary is displaying the total cost ofthe power plant.

Cash Flow will tell the user howthe economy throughout thelifetime of the plant will be.

Reference cost is thecost at a referenceUS Site, whereasEstimated cost is thecost at the actualsite.

STEAM MASTER

Multiple Runs – Edit Input

Part load calculations with constant ambient conditions.

Thermoflow Macro enables the user to performseries of calculations in an easy and fast way.

Inputs to vary in themacro may be selectedfrom an extensive listof inputs availablefrom STEAM MASTER.

Full load calculations with varyingsite cooling water temperature.

STEAM MASTER

Multiple Runs - OutputSummary displays a fixedlist of main output data.

Any of the general tabs allows theuser to define which data (outputsas well as inputs) to display in thatspecific table.

All tables can be exported to Exceldirectly or saved as a .CSV file forlater load into Excel.

Plots can be created.As an example Plantnet efficiency vs. Fuelinput.

For each case STEAM MASTERoutput can be displayed.

STEAM MASTER

More Information

Please contact Thermoflow for further information and a Demonstration CD.

THERMOFLOW, INC.

29 Hudson Road, Sudbury

Massachusetts 01776

USA

Tel: +1-978-579-7999

Fax: +1-978-579-5995

E-mail: info@thermoflow.com