EBSILON Professional
| EBSILON Professional
|
|
|---|---|
|
|
 EBSILON Professional screenshot |
|
| Basic data
|
|
| developer | Steag |
| Current version | 14.03 (March 9, 2020) |
| operating system | Windows |
| category | Thermodynamics , cycle process , modeling |
| License | proprietary |
| German speaking | Yes |
| www.ebsilon.com | |
EBSILON Professional is a commercial software from Steag Energy Services for modeling thermodynamic processes . EBSILON is mainly used for the modeling and optimization of cycle processes in power plants .
Emergence
The software was developed in 1991 by Johannes Janicka as a simulation tool for quasi-stationary, thermodynamic processes for MS-DOS . After completion of the first version, the company SOFBID - based in Zwingenberg and later sold to STEAG - took over sales, making it a part of the power plant operator industry.
commitment
As a program for modeling thermodynamic processes, the software offers the possibility of mapping different types of cycle processes ( refrigeration machine , steam power plant , combined heat and power plant , gas turbines , ...) and evaluating them with regard to their efficiency and partial load behavior. The main purpose of the software is the creation of new power plant cycles and the mapping of existing power plants for the purpose of performance monitoring ( performance monitoring , efficiency monitoring ).
In more recent versions, components for modeling solar thermal power plants such as B. Heliostat fields or parabolic troughs added.
functionality
EBSILON Professional has a graphical interface on which prefabricated components (e.g. turbines , heat exchangers , condensers , etc. ) represented by symbols are created and these are connected to one another with the help of cables. EBSILON has 125 prefabricated components and a large selection of working fluids. They include coal , natural gas , oil , thermal fluids , water vapor , exhaust gas and binary mixtures . Characteristic ( non-linear ) equations are stored in each component , which are written into a computational matrix and first linearized at the start of the simulation and then solved iteratively with an implicit Gauss-Seidel algorithm . When calculating the fluid data, EBSILON (among others) uses standard libraries such as the water-steam table, IAPWS-IF 97, REFProp (for organic fluids).
The user has the option of using functions, e.g. B. Polynomials to define your own fluids and to use them in the standard components. In addition to user-defined fluids, there is also the option of programming your own components. A scripting component is created on the user interface, the equations of which are programmed in a Pascal- based scripting language. With the macro function you can interconnect any components, define this combination as an independent component and use it in different models. The software also has interfaces to image viewing, presentation and spreadsheet programs . This allows default values to be read in and results to be read out, and models to be illustrated with images and presentations. With user-defined fluids, components and macros, it can be used to a limited extent in other areas such as the classic use for thermodynamic cycle processes. B. Process engineering (mapping of chemical processes).
Calculation modes
EBSILON Professional offers various calculation modes to characterize a model. In "Design" mode, the values specified by the user ( pressure , mass flow , enthalpy ) are defined as the design status and the results are calculated using the equations stored in the components, while in "Off-Design" mode, the partial load behavior of the circuit is based on physical Equations, polynomials and characteristics is calculated. In the "Identification" mode, the output values are not calculated using the physical equations stored in the components, but are read in from measurement data / locations and the corresponding efficiencies are determined. The "Validation" mode enables the user to carry out a measurement validation (according to VDI 2048 ). This allows the statistically most probable system status to be calculated, taking into account energy and mass balances. From version 10 it is possible to carry out transient calculations, whereby the load changes in a power plant can be mapped.
Interfaces
EBSILON allows the embedding of spreadsheet or word processing documents for the visualization of models through OLE objects. In addition, "EbsOpen" offers the possibility of communication with COM compatible programs. So you can z. B. Read out specification values with Matlab or Excel , change them and write them back to the simulation model. The COM interface enables the user to access all functions of an existing model with an external program.
literature
- K. Brinkmann, R. Pawellek, Ebsilon - Examples for the easier design and better operation of power plants. Paper for the conference “Energy Forum 2003” in Sv. Constantine Varna
- W. Dahmen, A. Reusken: Numerics for engineers and natural scientists. Springer, Aachen 2007, ISBN 978-3-540-92894-2 , p. 304.
- R. Pawellek, T. Löw, T. Hirsch: EbsSolar - A solar library for EBSILON®Professional. Paper for the conference “SolarPACES 2009”, Berlin 2009.
- S. Pulyaev: Investigation of the transient processes in power plant operation and their consideration in the simulation with EBSILON®Professional. Diploma thesis, Technical University Darmstadt 2011
- S. Rönsch: Programs for asset balancing. Springer, Wiesbaden 2015, ISBN 978-3-658-07823-2
- M. Schäfer: Numerics in mechanical engineering. Springer, Darmstadt 1998, ISBN 978-3-540-65391-2
- P. Stephan, K. Schaber, K.Stephan, F. Mayinger: Thermodynamics Volume 1: One-material systems. Springer, Darmstadt 2006, ISBN 978-3-540-36709-3 , p. 43ff.
- P. Stephan, K. Schaber, K.Stephan, F. Mayinger: Thermodynamics: Fundamentals and technical applications Volume 2: Multi-substance systems and chemical reactions. Springer, Darmstadt 2009, ISBN 978-3-540-36709-3 , p. 43ff.
- A. Voskrebenzev, J. Brandt: Process quality optimization - concepts, success factors, experiences. In: VGB PowerTech Journal , No. 10, 2012, pp. 51–55
Web links
Individual evidence
- ↑ Employee page of the EKT department . Website of the Department of Energy and Power Plant Technology at TU Darmstadt. Retrieved May 13, 2014.
- ↑ VDI guideline 2048 . Website of the Association of German Engineers; accessed on May 13, 2014.