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Beijing 's energy supply system , a comprehensive evaluation of the 3E - S ( energy - economy - environment - security ) , and application of the MARKAL model to optimize the energy supply system in Beijing . MARKAL model in the early 1980s , according to the International Energy Agency (IEA) energy technologies and systems analysis project to develop an integrated energy system optimization model . The model meet the energy demand of a given pollutant emissions restrictions , extraction, processing , conversion and distribution chain of a variety of energy in the energy system , as well as end-use aspects of the detailed description of the analysis , and then explore so that energy system to minimize the cost structure of energy supply and energy structure . MARKAL model for national , provincial energy system planning and structure optimization issues highlight the advantages , and there are many success stories , is widely used in various countries . Beijing 3E-S system energy flow , and cash flow, material flow and pollutant emissions associated simulation this paper application MARKAL model . After that , according to the final energy demand forecast data , the transformation of the relationship of the different energy carriers , as well as closely related to the environment and energy systems , economic and policy requirements , construct more cycle of large-scale linear programming model calculation results , which related energy Policy analysis and effect predicted . We build the the MARKAL analysis platform suitable for the analysis of Beijing 3E-S , that is, to develop , to build Beijing 3E-S system MARKAL model , and computer simulation , as an independent analysis of the entire simulation analysis system module . Quantitative calculation of economic activities , technological improvements , and a variety of factors such as energy use and pollution emissions at the top of this platform . The main function of the platform , including : the establishment of the capital 's energy system simulation platform , objective function and constraint equations of the energy structure and energy conversion process and the economic costs of environmental pollution linked , and the formation of an independent module , depending on the data continued use ; simulation is running to find the a satisfactory energy system structure , determine suitable energy index ; assessment and impact analysis of policy scenarios through simulation run , the existing policy , and at the same time can be used for a new energy policy formulation and effect predicted .
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