Analysis of Dense Gas Distribution Networks by Means of Griding Technique

This paper is devoted to the analysis of work of medium and low-pressure gas network by means of conventional steady state simulators and griding contouring software. One of the objectives of analysis of network is searching possibility to extend of system in different pressure regimes, different gas demand of consumers because of developing of new infrastructures.The coupled analysis of networks using classical steady state simulations and griding techniques allow finding the area, where critical velocity of gas has been reached. The main advantages of procedure is possibility to calculation of pressure gradient map, flow velocity map, pressure depression map, the Reynolds number map using simple mathematical grid transformation. The necessary condition to perform such analysis is full description of local coordinates (GIS) in the calculated network. The paper shows methodology for performing such analysis and examples of calculation of medium pressure dense networks