Presentation on theme: "WHAT IS STEAM PRO? Thermoflow, Inc."— Presentation transcript:
1WHAT IS STEAM PRO? Thermoflow, Inc. STEAM PRO is a highly automated system design tool – a heat balanceprogram specifically intended for design of steam power cycles.Use STEAM PRO to build models for conventional steam cycles, including theirboilers, and also for steam cycles of nuclear power plants.In combination with PEACE (Plant Engineering and Cost Estimator), STEAM PROprovides engineering details and cost estimation.STEAM PRO performs design-point calculations only – use STEAM MASTER forsimulations of part loads or other off-design conditions.
2What does PEACE add to STEAM PRO? What is PEACE?PEACE is Thermoflow’s Plant Engineering And Cost Estimator, anadditional tool that works in conjunction with Thermoflow’s heat balancedesign and simulation programs.What does PEACE add to STEAM PRO?PEACE brings regional costs, engineering details, and concerns beyondthe heat balance performance into a comprehensive description of the plant.PEACE provides graphic and tabular information about size, weight,and cost of plant equipment.PEACE produces a detailed total plant cost estimate.PEACE provides a simple pro forma financial projection to estimatecash flows, return on investment, and break-even power cost.PEACE can be used to impose more detailed hardware effects uponheat balance simulations, particularly piping and pump hardware details.
3Inputs – General Arrangement The Navigator column displays the major inputtopics. Topics in STEAM PRO are arrangedvertically, and follow a hierarchy, progressingfrom top to bottom. Selections made in anupper (earlier) topic will condition the selectionsavailable in lower (later) topics.Tabs are used as necessary to subdividetopics; green tabs include PEACE inputsEvery entry box has been initialized with areasonable value. You never have to fill anempty box. Instead you edit just those thatare of concern to you, trusting the others tohave been logically selected.The Guidance window includes a description of thepresently selected input
4The program opens to the New Session topic Select to begin a new design or to revise an existing one.Select the steam supply type for the plant you will design.Select a representative range of output. You will specifythe actual output later, but the Setup Wizard uses thisrange to initialize the design’s:>main steam conditions (P&T),>configuration and reheat (or not),>number of feedwater heaters, and much more.Click on Start Design to continue.
5At the Start Design topic... Select (or accept) thesteam turbine type.Click any other topic to move on.Edit entries in any order youchoose, then click Compute.The internal hierarchy for order ofthe inputs (top to bottom) willintervene only as necessary forconsistency.
6At the Plant Criteria topic... Of the several Tabs within this topic, the Site and Coolingtab is of greatest importance to the thermal design.The program’s default fuel is characterized in the FuelSelection panel. Click on the Fuel Library & User-defined Fuel button to select a different fuel ...
7Within the fuel selection utility ... Click on any of the several fuels listed within the FuelLibrary to replace the default fuel, or select User-defined tospecify the properties of the fuel anticipated at your site.Click on OK to return to the Plant Criteria topic.
8Also at Plant Criteria ...Select the cooling system type of your choice.The figure illustrates and confirms your selection.
9Visiting the Regional Costs tab... Click on any of the domestic (US) or international locationsto view and then initialize values for Cost Multipliers, whichcondition the STEAM PRO / PEACE cost estimation relativeto the reference, generic US cost estimate.
10Within the Cooling System topic ... Click on the Design Method selector if you wish to exert morecontrol upon the cooling system’s design parameters. Bydefault, parameters will be set automatically, in accord with theambient conditions and your Cost/Efficiency setting.
11Within the ST Inputs topic ... You can:Specify design target – Gross power, Net power, or Steam flow.Edit main steam P & T, and crossover pressure, as desired.Configure numbers of steam turbine casings.
12Moving on to feed water heaters ... Using reasonable defaults and conditioned by inputs madebefore reaching this display, the entire feedwater heatersystem has been initialized, extracting steam from theturbine at conditions suitable for the expected overall watertemperature rise.The user, of course, can edit these settings, as well asreselecting the steam sources for the heaters.
13Looking at the Boiler Thermal topic... There are also several layers of inputs for the boiler. InAutomatic design mode, only the Main tab is accessible.
14STEAM PRO Outputs Three categories of outputs – Text, Graphics, and PEACE, are provided, each with multiple tabsto help you quickly find the results you need.The two last buttons let you:Produce a series of related designs begun with the current fileBegin simulation of the present design, under differentconditions, using STEAM MASTER.
15STEAM PRO Text Output Select from the Tabs above to view the category of text outputof interest.
16STEAM PRO Graphics Output This overview displays gross and net electrical output, heatrate, and fuel energy input. Note also the many othergraphic displays to be selected from the tabs above.
17Graphics – Steam Turbine Display This figure illustrates all the significant flows to and fromthe steam turbine, including extractions for the feedwaterheaters. Units are identified in the lower right corner.
18Graphics – Turbine Expansion Line The useful Mollier diagram illustrates the steam conditionsthrough the turbine and the effect of the exhaust loss.Clicking anywhere on the diagram causes the data to bedisplayed in tabular form.
19Graphics – Psychrometric Chart Shown here for a combination wet-dry cooling tower, thisdiagram shows the conditions of the humid air passingthrough and mixing after the wet and dry segments ofcooling tower.
20PEACE Outputs PEACE provides Schematics like this Site Plan, Equipment Data tables, a Cost Report detailing thecapital investment, and a pro forma Cash Flow analysis,in addition to the STEAM PRO heat balance outputs.
21PEACE Schematics Select from the list to see dimensioned layouts of the site and of plant equipment.
22PEACE Equipment DataFor each of the equipment categories, selectable by thetabs visible here, these tables indicate size, weight, and nameplate specifications.
23PEACE Cost ReportProject Summary is shown, but click on any tab to see theindividual breakdown of costs. Note the two columns:Reference Cost and Estimated Cost.Click on Cash Flow to see a pro forma financial projection.
24PEACE Cash FlowThis Financial Summary table displays the overall results ofthe pro forma Cash Flow projection detailed in the subsequent tab.In very little time, you can use these results to explore the influenceof design decisions on plant economic performance.