IDENTIFICATION OF THE PARAMETERS "PRESSSURE, FLOW AND CALORIFIC VALUE" IN UNDER-INSTRUMENTED GAS DISTRIBUTION GRIDS BY USING MODERN RECONSTRUCTION METHODS |
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| T. Hager, A. Bentaleb, E.-A. Wehrmann, H.-P. Beck |
- Abstract:
- The simulation of natural gas networks is only feasible with available simulation tools, if all inlets and rather all offtakes of the grids are measured. At regional gas distribution grids these premises are often not fulfilled. In detail this means, that not enough offtakes are measured and because of that it is not possible to use the common simulation tools. For this reason a method was developed at Clausthal University of Technology which emulates the unmeasured offtakes with a Nodal Point Load Observer. With this emulated offtakes it is possible to simulate the pressures and the pipe flows in gas distribution grids and with them to reconstruct the calorific values. The results of simulations at different gas distribution grids are shown in the article.
A simulation system for gas distribution grids with an incomplete measurement infrastructure would bring a new quality to the controlling and monitoring of gas distribution grids and to the billing. If different gas qualities are in the grid, for example if biogas plants feed in their biogas, it will be necessary to trace the calorific values for billing. - Keywords:
- reconstruction methods, gas distribution grids, .Luenberger observer, metrological infrastructure
- Download:
- IMEKO-TC20-2011-15.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC20
- Event name:
- Joint IMEKO TC11 TC19 TC20 International Symposia
- Title:
Metrological Infrastructure, Environmental And Energy Measurements
- Place:
- Cavtat, CROATIA
- Time:
- 15 June 2011 - 17 June 2011