Rapport (alle typer) - Danish Gas Technology Centre

DGC-report 208 Design of the biogas grid systemThis section will describe design of the grid for distributing biogas from thebiogas plants to the decentralized natural gas engine based CHP plant in themunicipality. The grid is planned to be a low pressure grid (1,3 bar (g))made from PE-100 SDR17 pipes. The grid will be designed so a supplypressure of 0,3 bar(g) will available at all CHP plants.The biogas sources are evenly distributed all over the municipality but plantthat is going to use the biogas are mainly in the northern part of the municipality.This means that a larger transport capacity from south to north is required.In order to design the biogas grid all relevant CHP plants in the municipalitywere interviewed. Based these interviews the required design data for theconsumers were defined. See Table 5.Table 5PlantDesign data for the biogas gridBiogasconsumption[m 3 (n)/year]Necessaryinput power[MW]Requiredamount ofbiogas[m 3 (n) biogas/h]Tim KV 2.623.100 2,8 430Videbæk KV 12.868.300 13,4 2061Troldhede KV 1.519.700 2,2 338Skjern KV 15.291.600 12,8 1969Lem KV 7.751.200 6,4 986Ringkøbing KV 15.029.400 12,8 1969Spjald KV 4.108.900 7,4 1138Hvide Sande KV 12.707.500 12,8 1969Kloster KV 1.621.200 1,8 277Ådum KV 991.700 1,8 277With these design data a biogas grid was designed. The result is shown inFigure 3.