Co-Simulation Between ESP-r and TRNSYS Workshop

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Part 2: ESP-r Plant Network Cont’d28. Once all the connections look good, exit out of the Connections menu, then exit out of the Plant Networkmenu. You will be asked if you want to save any changes. Select yes. Accept the file name and select yes tooverwrite file.29. Click exit and you should be back at the browse/edit/simulate menu.Section B: Link Plant to ZoneNow that the plant network has been established, we need to create the link between ESP-r’s plant and thermalzone solvers. This link tells the plant network, specifically the radiator in our case, where to inject the flux fromthe plant component. This linkage is accomplished through ESP-r’s control files. The following will guide youthrough setup of this linkage for this exercise.1. Under Controls in the browse/edit/simulate window, select zones (selection j).2. Accept the default name, then click make new file. This will be a Just One Day type control with 1 period.3. The Controls menu should now be displayed. Click on the control period (selection e).4. The Editing Options should now be displayed.5. Since we are establishing a link and not a control scheme, the sensor details is not important here. Theactuator details however, tell ESP-r how the plant flux is introduced to the zone. Click on actuator details.6. You will be presented with several options. Since this is a radiator, we will select a mix of convection andradiation.7. ESP-r will ask you which zone to supply heat to. For this example, we select main.8. You will be asked to provide a convective weighting factor. For this case, lets assume 40.9. You should now be back at the Editing Options menu. We now need to establish the period data.10. You will be presented with a Control Periods menu. There should only be one period, selection a. Click on itto edit the data.
Part 2: ESP-r Plant Network Cont’d15. Select Law, then select Flux connection between plant & zone (selection f) and then click exit menu.16. Select the default values for number of periods and miscellaneous data.17. The supply plant component in our case is the Radiator, specifically node b.18. The coupling type is heat flux transfer (2.00).19. For maximum heating flux, input 4000 W (Recall the nominal output for the radiator was 2500 W definedpreviously.20. Cooling flux is 0 W.21. An extract component is then requested. This is for coupling type 1.0 (mc p ΔT). Although this input is notused for the flux heat transfer coupling that we are using, ESP-r demands a value, so select the Radiatornode b.22. You should now be back at the Control Periods menu. Exit that menu and the Editing Options menu.23. You should now be back at the main Controls menu. To double check our work, select list or check currentcontrol data.24. The last step is to link loops to zones (selection d). The main zone is receiving heat from the radiator and isassociated with control function 1. All other are free floating with control function 0.25. Once association is done exit out of the control menu. You will be prompted to save. Select yes.
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Response Factor Method(Stephenson &
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Heat transfer (W)200018001600140012
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Co-simulation12
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“Internal” Coupling (≠ Co-Sim
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Source: Yuxiang Chen, A.K. Athienit
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No single BPS tool offers sufficien
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TRNSYS Methodologies• TRNSYS meth
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TRNSYS philosophyParametersInputsCo
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What’s in a component?Example: au
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TRNSYS solution methodology26
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Calling sequence for a standard Typ
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Conclusions• TRNSYS components ar
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ESP-r’s partitioned solution appr
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Relevant Heat and Mass Transfer Pro
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Form Heat Balances for Each CV:Intr
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Fully explicit form of discretized
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Crank-Nicholson difference formulat
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Plant Network
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CV Energy Balances
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a1,1 T1 z1a 2,2T 2z 2 a3,3 T 3
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Initiatetime-stepsimulationMZNUMA(S
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Design Approach• Middleware:• C
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timeESP-rBuilding domainPlant domai
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a1,1 T1 z1a 2,2T 2z 2 a3,3 T 3
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TRNSYS philosophy applied tocosimul
Page 64 and 65: Type 130 Inputs / OutputsINPUTSTYPE
Page 66 and 67: Type 130 and convergence• TRNSYS
Page 68: Does it work ?68
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Page 80: Case study• Low-energy house:•
Page 93 and 94: Configuring a co-simulation :Demons
Page 95 and 96: Type 130DemoACC-RZonedataACC-SZone
Page 97 and 98: TRNSYS Project97
Page 99 and 100: Starting point• Launch Simulation
Page 101 and 102: Configure link to ESP-r (Type 130)
Page 103 and 104: Add components for hydronic loop•
Page 105 and 106: Define the hydronic loop• Use Lin
Page 107 and 108: Add outputs to online plotter• Do
Page 109 and 110: Prepare the input file for cosimula
Page 111 and 112: Part 2: ESP-r Plant Network Cont’
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Page 117: Conclusions• ESP-r / TRNSYS co-si
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Co-Simulation Between ESP-r and TRNSYS Workshop

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