冷热电三联供(combined cooling heating and power,CCHP)系统有着较高的一次能源利用率、较小的环境污染以及较高的经济性等优点,可有效减轻目前困扰全球的环境污染问题,是社会经济、环境可持续发展的需要,也被认为是实现双碳目标的手...冷热电三联供(combined cooling heating and power,CCHP)系统有着较高的一次能源利用率、较小的环境污染以及较高的经济性等优点,可有效减轻目前困扰全球的环境污染问题,是社会经济、环境可持续发展的需要,也被认为是实现双碳目标的手段之一。随着我国3060双碳目标的提出和国内碳交易市场的发展,碳排放问题势必会成为影响CCHP系统运行策略的一个重大因素。为解决在双碳背景下的CCHP系统运行策略优化问题,通过Matlab软件建立CCHP系统的数学模型,分别在碳排放价格与碳排放指标这2种不同约束条件下,以运行成本最低为目标,采用非线性规划法,优化CCHP系统的运行策略,并通过对某建筑的CCHP系统的负荷计算,验证了该数学模型在不同碳排放约束条件下都可很好地提供合适的运行策略,同时也为CCHP系统在双碳背景下的应用与发展提供了参考。展开更多
The Changjiang River Valley is rich in hydraulic energy resources. A rough estimation of the technically developable volume and the economically developable volume for the Changjiang River Valley was drawn out on the ...The Changjiang River Valley is rich in hydraulic energy resources. A rough estimation of the technically developable volume and the economically developable volume for the Changjiang River Valley was drawn out on the basis of new data. According to the estimation, the developable water energy resources of the whole valley is 257 627.60 MW with an annual energy output of 1 195.142 billion kW·h - respectively amounting to 120.6% and 116.3% of the General Investigation result in 1980. The proportion of economically developable volume in the technically developable volume ranges the medium level in the world. According to the 3-step plan for the national economic and social development, the economic situation of our country will come up to the standard of medium-developed countries in the mid of the 21st century. Calculation reports from related departments show that the national electric power requirement in the Year 2050 will be 6 200 billion kW·h (basic scheme) ～11 600 billion kW·h (ideal scheme) while the electric power requirement of the South-west, Central and East areas of the nation within the Changjiang River Valley will amount to 44% ～ 50 %. In order to satisfy the electric power requirement of the national economic and social development, the development and utilization of the hydraulic energy in the Changjiang River Valley should be speeded up by stressing its strategic position and taking effective measures. The structure of the electric energy components of the three areas will be improved with the increasing proportion of the hydroelectricity. The hydroelectricity should be mainly developed in the South-west area; both the hydroelectric and fossil-fired power should be developed in the Central China; the fossil-fired power should be mainly developed in the combination of hydropower while nuclear power will be properly developed in the East China. In the Year 2050, the development of the economically developable hydraulic energy in the whole valley will be basically completed and the proportion of the hydropower in the electric energy components will be 40%.展开更多
文摘冷热电三联供(combined cooling heating and power,CCHP)系统有着较高的一次能源利用率、较小的环境污染以及较高的经济性等优点,可有效减轻目前困扰全球的环境污染问题,是社会经济、环境可持续发展的需要,也被认为是实现双碳目标的手段之一。随着我国3060双碳目标的提出和国内碳交易市场的发展,碳排放问题势必会成为影响CCHP系统运行策略的一个重大因素。为解决在双碳背景下的CCHP系统运行策略优化问题,通过Matlab软件建立CCHP系统的数学模型,分别在碳排放价格与碳排放指标这2种不同约束条件下,以运行成本最低为目标,采用非线性规划法,优化CCHP系统的运行策略,并通过对某建筑的CCHP系统的负荷计算,验证了该数学模型在不同碳排放约束条件下都可很好地提供合适的运行策略,同时也为CCHP系统在双碳背景下的应用与发展提供了参考。
文摘The Changjiang River Valley is rich in hydraulic energy resources. A rough estimation of the technically developable volume and the economically developable volume for the Changjiang River Valley was drawn out on the basis of new data. According to the estimation, the developable water energy resources of the whole valley is 257 627.60 MW with an annual energy output of 1 195.142 billion kW·h - respectively amounting to 120.6% and 116.3% of the General Investigation result in 1980. The proportion of economically developable volume in the technically developable volume ranges the medium level in the world. According to the 3-step plan for the national economic and social development, the economic situation of our country will come up to the standard of medium-developed countries in the mid of the 21st century. Calculation reports from related departments show that the national electric power requirement in the Year 2050 will be 6 200 billion kW·h (basic scheme) ～11 600 billion kW·h (ideal scheme) while the electric power requirement of the South-west, Central and East areas of the nation within the Changjiang River Valley will amount to 44% ～ 50 %. In order to satisfy the electric power requirement of the national economic and social development, the development and utilization of the hydraulic energy in the Changjiang River Valley should be speeded up by stressing its strategic position and taking effective measures. The structure of the electric energy components of the three areas will be improved with the increasing proportion of the hydroelectricity. The hydroelectricity should be mainly developed in the South-west area; both the hydroelectric and fossil-fired power should be developed in the Central China; the fossil-fired power should be mainly developed in the combination of hydropower while nuclear power will be properly developed in the East China. In the Year 2050, the development of the economically developable hydraulic energy in the whole valley will be basically completed and the proportion of the hydropower in the electric energy components will be 40%.
