Urban energy systems(UESs)play a pivotal role in the consumption of clean energy and the promotion of energy cascade utilization.In the context of the construction and operation strategy of UESs with multiple compleme...Urban energy systems(UESs)play a pivotal role in the consumption of clean energy and the promotion of energy cascade utilization.In the context of the construction and operation strategy of UESs with multiple complementary energy resources,a comprehensive assessment of the energy efficiency is of paramount importance.First,a multi-dimensional evaluation system with four primary indexes of energy utilization,environmental protection,system operation,and economic efficiency and 21 secondary indexes is constructed to comprehensively portray the UES.Considering that the evaluation system may contain a large number of indexes and that there is overlapping information among them,an energy efficiency evaluation method based on data processing,dimensionality reduction,integration of combined weights,and gray correlation analysis is proposed.This method can effectively reduce the number of calculations and improve the accuracy of energy efficiency assessments.Third,a demonstration project for a UES in China is presented.The energy efficiency of each scenario is assessed using six operational scenarios.The results show that Scenario 5,in which parks operate independently and investors build shared energy-storage equipment,has the best results and is best suited for green and low-carbon development.The results of the comparative assessment methods show that the proposed method provides a good energy efficiency assessment.This study provides a reference for the optimal planning,construction,and operation of UESs with multiple energy sources.展开更多
In order to analyze the deep-routed reason for the failure of the real estate market regulation policy, this paper established an incomplete information tri-game model in which central government, local government and...In order to analyze the deep-routed reason for the failure of the real estate market regulation policy, this paper established an incomplete information tri-game model in which central government, local government and the real estate developer were chosen as three main research objects. Based on the analysis of their interest appeals under the assumption of rational economic man, we found that it was the difference of interest appeals of central and local governments as well as the real estate developers that caused the game among the three participants. This, however, led to the failure of the macro-control at last. Strengthening the supervision of central government and reducing its cost at the same time, what’s more, improving the efficiency of the supervision and increasing the punishment of the rent-seeking behavior between local government and the real estate developers will contribute to improve the implementation status of the regulation and control policy. We suggest the authorities improve the government political achievement appraisal system and reform the current system of benefits distribution;moreover, reform the existing regulatory system and strength the regulatory role of media and the third-party so as to promote the healthy development of the real estate market.展开更多
基金supported by the National Natural Science Foundation of China under Grant 51567002 and Grant 50767001.
文摘Urban energy systems(UESs)play a pivotal role in the consumption of clean energy and the promotion of energy cascade utilization.In the context of the construction and operation strategy of UESs with multiple complementary energy resources,a comprehensive assessment of the energy efficiency is of paramount importance.First,a multi-dimensional evaluation system with four primary indexes of energy utilization,environmental protection,system operation,and economic efficiency and 21 secondary indexes is constructed to comprehensively portray the UES.Considering that the evaluation system may contain a large number of indexes and that there is overlapping information among them,an energy efficiency evaluation method based on data processing,dimensionality reduction,integration of combined weights,and gray correlation analysis is proposed.This method can effectively reduce the number of calculations and improve the accuracy of energy efficiency assessments.Third,a demonstration project for a UES in China is presented.The energy efficiency of each scenario is assessed using six operational scenarios.The results show that Scenario 5,in which parks operate independently and investors build shared energy-storage equipment,has the best results and is best suited for green and low-carbon development.The results of the comparative assessment methods show that the proposed method provides a good energy efficiency assessment.This study provides a reference for the optimal planning,construction,and operation of UESs with multiple energy sources.
文摘In order to analyze the deep-routed reason for the failure of the real estate market regulation policy, this paper established an incomplete information tri-game model in which central government, local government and the real estate developer were chosen as three main research objects. Based on the analysis of their interest appeals under the assumption of rational economic man, we found that it was the difference of interest appeals of central and local governments as well as the real estate developers that caused the game among the three participants. This, however, led to the failure of the macro-control at last. Strengthening the supervision of central government and reducing its cost at the same time, what’s more, improving the efficiency of the supervision and increasing the punishment of the rent-seeking behavior between local government and the real estate developers will contribute to improve the implementation status of the regulation and control policy. We suggest the authorities improve the government political achievement appraisal system and reform the current system of benefits distribution;moreover, reform the existing regulatory system and strength the regulatory role of media and the third-party so as to promote the healthy development of the real estate market.
