| Six non-pipeline gas supply technologies (LNG,CNG,LPG,LPG-Air,ANG and NGH) are studied in this paper.The author introduces character,flows and primary equipments of LNG,CNG,LPG and LPG-Air,then analyses character and some problems that need to be solved of ANG and NGH.A mathematical model respectively for the former 4 technologies is built by means of the theory of integer non-linear programming.Theses models optimize combination of the equipments in the distribution station and tank cars of each technology.The integer variables and 0 ? 1 variables are transformed into some continuous variables,then these NIP problems are solved by using penalty function and mathematical tool-LINGO.Finally,according to some curves drawed based on the results,the economic analysis of each technology with the change of gas consumption scale and transportation range is made,and the economic analysises of four technologies are compared each other. |
