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This is a package for the CHP model applied in district energy system. In the package, here are: ToppingCycle, BottomingCycle, Combined, Data, BaseClasses, Validation, and Obsolete.
Add district CHP package
…ation.ToppingCycle, DistrictCHP.Validation.BottomingCycle_AnnualSim, and DistrictCHP.Examples.CombinedCycleCHP. 2) Updated package icons
Added .mos files for the districtCHP package.
…ll instances have descriptive comments
Delete package Buildings.Fluid.CHPs.DistrictCHP.Obsolete and ensure a…
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| This validation model compares the proposed CHP bottoming-cycle model with the |
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@ZhanweiHe The documentation should be updated. The validation is not comparing the results with the one from TPL.
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I will add two figures (the comparison with TPL) to the documentation
JayHuLBL
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@ZhanweiHe See inline comments
…ocumentation 2)add two figures (the comparison with TPL) to the documentation of the bottoming cycle validation model
…ackage documentation 2)add two figures (the comparison with TPL) to the documentation of the bottoming cycle validation model
…ackage documentation 2)add two figures (the comparison with TPL) to the documentation of the bottoming cycle validation model" This reverts commit 49403a8. B 1) Add system schematics and the governing equations to the package documentation 2)add two figures (the comparison with TPL) to the documentation of the bottoming cycle validation model
…modelica-buildings into issue3284_districtCHP
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| //Waste heat specific enthalpy calculation | ||
| // Avaeraged specific heat of exhaust is 1.08 kJ/(kg-K) | ||
| hWasHea = 1.08e3*(TExh - TAmb); |
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Where does the 1.08e3 come from? Do you have a reference?
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@JayHuLBL The specific heat of exhaust gas is dependent on its temperature, and users can use the known exhaust temperature to estimate the specific heat of exhaust in a specific gas turbine engine. Here is a table can be used Flue gases properties table
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Thanks! Could you be more specific of how the 1.08e3 being calculated? In the Modelica model, it says Averaged specific heat of exhaust is 1.08 kJ/9kg.K). Then how was the average value calculated? The table (https://www.pipeflowcalculations.com/tables/flue-gas.xhtml) shows that the 1.08 is between the status of temperature between 100 degC and 200 degC.
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@ViswanathanGanesh01 Could you please let me know if there is any comments on this?
1. Added validations data 2. Updated the BottomCycle validation model 3. Updated the command script
Updated Bottom Cycle Validation
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| package SolarTurbines "Solar Turbines data sheets" | ||
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| package NaturalGas "The fuel used is natural gas" |
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@ZhanweiHe @ViswanathanGanesh01 Do we have reference on these performance data? where are they from?
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@JayHuLBL , this data was obtained from a faculty here at Penn State. We do not have a reference link for the public available data.
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The MBL will have the copyright to the data, if there is no reference. Will it be an issue?
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Let me check regarding this and get back to you soon!
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@ZhanweiHe @ViswanathanGanesh01 The With Dymola, running the unit test for package The errors and warnings are related the water feeding pump in the bottom cycle. Why do we use the model Please check if the changes are good to you. |
This looks good! @JayHuLBL |
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