Research On Location Decision Of LNG Filling Station In DY Company

In order to solve the problems of energy crisis and environmental pollution,with the strong support of the government,natural gas energy with abundant resources,good economy and low emission pollution has been developed rapidly,especially in the field of natural gas vehicle transportation.Based on the demand for natural gas energy,many cities and towns have started to build natural gas filling stations.However,the construction site selection of some natural gas filling stations is relatively random,which will not only affect the economic benefits of enterprises,but also may bring security risks and other negative effects.Therefore,it is particularly important to carry out scientific and reasonable location of natural gas filling stations.This thesis focuses on the location problem of LNG filling station in DY Company.Firstly,the research results at home and abroad related to the location problem of natural gas filling stations are sorted out;Secondly,it introduces the business status and project location of DY Company,analyzes the target users,construction scale,construction reasons and technological process of the new LNG filling station project,and establishes a GM(1,1)forecasting model of LNG vehicle ownership by using grey theory,and then forecasts the market demand of the filling station project.Then,starting from the main guiding principles and location process of facility location,Based on the improved center-of-gravity technique,the minimum transportation cost function is introduced and combined with the Loca Space Viewer and coordinate transformation software,the alternative scheme of site selection is determined.At last,the evaluation index system of LNG filling station site selection scheme including economic factors,social factors,market factors and safety and environmental protection factors is designed according to the influencing factors of LNG filling station site selection combined with the principle of establishing site selection index.The comprehensive evaluation model of site selection scheme is established by AHP combined with partially order set theory,and the evaluation model is used to compare and select the site selection alternatives.The TOPSIS method is used to verify the comparison results,and the alternative 2 is determined to be the optimal site selection scheme of DY LNG filling station,which further verifies the feasibility and rationality of the model.The research work has a strong practical guiding significance for the reasonable location of the LNG filling station of DY Company,and also has a strong practical reference value for the construction and location of similar filling stations.