Constructing a cross-border power energy system with multiagent power energy as an alliance is important for studying cross-border power-trading markets.This study considers multiple neighboring countries in the form ...Constructing a cross-border power energy system with multiagent power energy as an alliance is important for studying cross-border power-trading markets.This study considers multiple neighboring countries in the form of alliances,introduces neighboring countries’exchange rates into the cross-border multi-agent power-trading market and proposes a method to study each agent’s dynamic decision-making behavior based on evolutionary game theory.To this end,this study uses three national agents as examples,constructs a tripartite evolutionary game model,and analyzes the evolution process of the decision-making behavior of each agent member state under the initial willingness value,cost of payment,and additional revenue of the alliance.This research helps realize cross-border energy operations so that the transaction agent can achieve greater trade profits and provides a theoretical basis for cooperation and stability between multiple agents.展开更多
Conventional conductivity methods for measuring the void fraction in gas-liquid multiphase systems are typically affected by accuracy problems due to the presence of fluid flow and salinity.This study presents a novel...Conventional conductivity methods for measuring the void fraction in gas-liquid multiphase systems are typically affected by accuracy problems due to the presence of fluid flow and salinity.This study presents a novel approach for determining the void fraction based on a reciprocating dynamic conductivity probe used to measure the liquid film thickness under forced annular-flow conditions.The measurement system comprises a cyclone,a conductivity probe,a probe reciprocating device,and a data acquisition and processing system.This method ensures that the flow pattern is adjusted to a forced annular flow,thereby minimizing the influence of complex and variable gas-liquid flow patterns on the measurement results;Moreover,it determines the liquid film thickness solely according to circuit connectivity rather than specific conductivity values,thereby mitigating the impact of salinity.The reliability of the measurement system is demonstrated through laboratory experiments.The experimental results indicate that,in a range of gas phase superficial velocities 5–20 m/s and liquid phase superficial velocities 0.079–0.48 m/s,the maximum measurement deviation for the void fraction is 4.23%.展开更多
In recent years, with the continuous progress and development of the society, the teaching of Chinese language and literature in the process of continuous development and improvement, actively learning from the advanc...In recent years, with the continuous progress and development of the society, the teaching of Chinese language and literature in the process of continuous development and improvement, actively learning from the advanced teaching ideas and ideas at home and abroad, combined with modern educational ideas, the teaching methods have undergone profound Variety. Based on the perspective of modern educational thought, the author studies the development and strategy of Chinese language and literature teaching, in order to provide a theoretical basis for Chinese language teaching in the field of Chinese language teaching.展开更多
As an energy-intensive heavy industry,the coal mining industry plays a key role in achieving energy conservation and emission reduction.This study presents an energy-carbon efficiency improving strategy aimed at reduc...As an energy-intensive heavy industry,the coal mining industry plays a key role in achieving energy conservation and emission reduction.This study presents an energy-carbon efficiency improving strategy aimed at reducing carbon emissions and energy consumption in mining areas by integrating gravity energy storage(GES)with carbon capture and power-to-gas(P2G)technologies.Utilizing the natural topography,abandoned mines can be converted into gravity energy storage systems to stabilize the fluctuating outputs of renewable sources,such as wind power(WP)and Photovoltaic(PV).Concurrently,carbon capture,utilization,and storage(CCUS)technology capture CO_(2)in mining areas,which is then transformed into methane using P2G systems.This methane is mixed with low-concentration coalbed methane to create a high-concentration combustible gas,facilitating carbon recycling and a collaborative multi-energy supply.The efficacy of the model was demonstrated through comparative simulations,which showed the utilization rate of renewable energy has increased,leading to a significant reduction in the total cost of the system and carbon emissions.This study confirms that optimizing gravity energy storage with CCUS-P2G effectively resolves the energy supply demand imbalance in mining areas,achieving economic and low-carbon advancements and offering theoretical support for the sector’s low-carbon transition.展开更多
基金National Key R&D Program of China(Grant No.2022YFB2703500)National Natural Science Foundation of China(Grant No.52277104)+2 种基金National Key R&D Program of Yunnan Province(202303AC100003)Applied Basic Research Foundation of Yunnan Province (202301AT070455, 202101AT070080)Revitalizing Talent Support Program of Yunnan Province (KKRD202204024).
文摘Constructing a cross-border power energy system with multiagent power energy as an alliance is important for studying cross-border power-trading markets.This study considers multiple neighboring countries in the form of alliances,introduces neighboring countries’exchange rates into the cross-border multi-agent power-trading market and proposes a method to study each agent’s dynamic decision-making behavior based on evolutionary game theory.To this end,this study uses three national agents as examples,constructs a tripartite evolutionary game model,and analyzes the evolution process of the decision-making behavior of each agent member state under the initial willingness value,cost of payment,and additional revenue of the alliance.This research helps realize cross-border energy operations so that the transaction agent can achieve greater trade profits and provides a theoretical basis for cooperation and stability between multiple agents.
基金the National Natural Science Foundation of China(No.62173049)the Open Fund of the Hubei Key Laboratory of Oil and Gas Drilling and Production Engineering(Yangtze University),YQZC202309.
文摘Conventional conductivity methods for measuring the void fraction in gas-liquid multiphase systems are typically affected by accuracy problems due to the presence of fluid flow and salinity.This study presents a novel approach for determining the void fraction based on a reciprocating dynamic conductivity probe used to measure the liquid film thickness under forced annular-flow conditions.The measurement system comprises a cyclone,a conductivity probe,a probe reciprocating device,and a data acquisition and processing system.This method ensures that the flow pattern is adjusted to a forced annular flow,thereby minimizing the influence of complex and variable gas-liquid flow patterns on the measurement results;Moreover,it determines the liquid film thickness solely according to circuit connectivity rather than specific conductivity values,thereby mitigating the impact of salinity.The reliability of the measurement system is demonstrated through laboratory experiments.The experimental results indicate that,in a range of gas phase superficial velocities 5–20 m/s and liquid phase superficial velocities 0.079–0.48 m/s,the maximum measurement deviation for the void fraction is 4.23%.
文摘In recent years, with the continuous progress and development of the society, the teaching of Chinese language and literature in the process of continuous development and improvement, actively learning from the advanced teaching ideas and ideas at home and abroad, combined with modern educational ideas, the teaching methods have undergone profound Variety. Based on the perspective of modern educational thought, the author studies the development and strategy of Chinese language and literature teaching, in order to provide a theoretical basis for Chinese language teaching in the field of Chinese language teaching.
基金National Key R&D Program of China,2022YFB2703500,Zhao LuoNational Natural Science Foundation of China,52277104,Zhao Luo+2 种基金Science and Technology Major Project of the Department of Science and Technology of Yunnan Province,202402AF080006,Zhao LuoKey R&D Program of Yunnan Province,202303AC100003,Zhao LuoYunnan Fundamental Research Project,202301AT070455,Zhao Luo,202401CF070076,Zhao Luo。
文摘As an energy-intensive heavy industry,the coal mining industry plays a key role in achieving energy conservation and emission reduction.This study presents an energy-carbon efficiency improving strategy aimed at reducing carbon emissions and energy consumption in mining areas by integrating gravity energy storage(GES)with carbon capture and power-to-gas(P2G)technologies.Utilizing the natural topography,abandoned mines can be converted into gravity energy storage systems to stabilize the fluctuating outputs of renewable sources,such as wind power(WP)and Photovoltaic(PV).Concurrently,carbon capture,utilization,and storage(CCUS)technology capture CO_(2)in mining areas,which is then transformed into methane using P2G systems.This methane is mixed with low-concentration coalbed methane to create a high-concentration combustible gas,facilitating carbon recycling and a collaborative multi-energy supply.The efficacy of the model was demonstrated through comparative simulations,which showed the utilization rate of renewable energy has increased,leading to a significant reduction in the total cost of the system and carbon emissions.This study confirms that optimizing gravity energy storage with CCUS-P2G effectively resolves the energy supply demand imbalance in mining areas,achieving economic and low-carbon advancements and offering theoretical support for the sector’s low-carbon transition.
