Research On Circular Economy System Based On System Dynamics For Coal Enterprise

As a large coal producing and consuming country, coal is always at the mainposition on the once sources consuming. With the world’s sustainable developmentenvironment, our coal-based primary energy consumption structure of energy demandwill face the dual pressures of growth and environmental protection. How to ensureenergy supply and security for coal industry and enterprises, and how to abandon thetraditional development model, and how to coordinate the development among thecoal industry, the economy and the environment become the focus.Based on the study of the experience and development model of circulareconomy home and abroad, this thesis systematically studys the the coal businesseconomic system using system dynamics in order to search for a generic dynamicmodel of the China’s coal business economic system. The main works and innovationsare as follows:Firstly, the thesis summarizes the typical mode of circular economy of domesticand outboard coal enterprises, then based on the previous syudy, the thesis analysissimilarities and differences between the domestic and international coal enterprises’circular economy development model to give out some thinking of the developmentof circular economy in China’s coal enterprise.Secondly, from three levels, that is the coal industry, ecological mining area andcoal companies, the thesis analyzes the factors impacting the development of circulareconomy from big to small, and then on the basis of coal enterprise ecosystemfeedback control between the main variables to construct a common coal industrysimulation model of ecosystem dynamics;Thirdly, through SWOT analysis of the circular economy development inZaozhuang Mining Group, the thesis proposes the development of circular economyideas, principles and the key tasks of development of circular economy development.The development of circular economy industrial chain is an important project ofcircular economy, the thesis combines with Group status and domestic coalenterprises in the construction of circular economy industrial chain and the typicalmode of circular economy development, planning and construction reflected regionalcharacteristics in accordance with enterprise products features energy cycle.Fourthly, with Zaozhuang Mining Group’s business development data in the yearfrom2000to2009, the thesis constructs the coal enterprises’ ecosystem dynamics model which adopted the testing and revision of the effectiveness of vensim. using therevised model the thesis+simulates the four of assumptd mines date models, and theresults show that the recycling economy model is the preferred development modelfor Zaozhuang Mine Group.Fifth, with the simulation results of Coal Mine Group ecosystem, the thesis givesout support system for the development of circular economy from policy supportsystem, technical support system, support system and information resource supplyservice system.