Study on Beijing’s Energy Utilization and Forecast Energy Supply and Demand Based on Grey Model

2011 ◽  
Vol 361-363 ◽  
pp. 1240-1243
Author(s):  
Hong Ze Li ◽  
Sen Guo ◽  
Li Wen Fu

Beijing is a typical city of energy resources shortage and there exists the contradiction between energy supply and demand. This paper analyzes the current situation and existing problems of Beijing’s energy utilization, and then forecasts Beijing’s energy supply and demand from 2011 to 2015 based on four kinds of grey forecasting models, finds out that the equilibrium of Beijing’s energy supply and demand is fairly weak with higher external dependence and there is a large room for improving the proportion of quality energy and for developing and utilizing renewable energy. Finally, on the basis of the current situation of Beijing's energy utilization and the development trend in the next few years, some suggestions are proposed.

Author(s):  
Ц. Чжоу

В данной статье авторы обозначили, что страны – члены БРИКС определили повышение эффективности использования ресурсов как одно из своих приоритетных направлений развития. Различие между странами состоит в том, что Российская Федерация как основной поставщик и экспортер энергии уделяет больше внимания увеличению использования ископаемой энергии за счет увеличения ее добавленной стоимости, остальные же страны – члены БРИКС (с дефицитом энергоресурсов) трансформируют свою структуру потребления энергии, сокращая использование угля за счет увеличения использования возобновляемых источников энергии. In this article, the authors indicated that the BRICS member countries have identified improving the efficiency of resource use as one of their priority areas of development. The difference between the countries is that Russia, as the main supplier and exporter of energy, pays more attention to increasing the use of fossil energy by increasing the added value of energy, while the rest of the BRICS member countries (with a shortage of energy resources) transform their energy consumption structure by reducing the use of coal by increasing the use of renewable energy sources.


Applied laser ◽  
2013 ◽  
Vol 33 (5) ◽  
pp. 567-572
Author(s):  
张瑄珺 Zhang Xuanjun ◽  
潘涌 Pan Yong ◽  
王健超 Wang Jianchao ◽  
罗曼 Luo Man ◽  
沈一愚 Shen Yiyu ◽  
...  

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Zhengxuan Li

The rapid development of computer software technology has a significant impact on China. However, compared with developed countries, the development of computer software technology in China is still quite different, and it is necessary to explore and research computer technology continuously. This paper analyzes the current situation of computer software technology and the development trend of big data, explains the related techniques of computing and big data, and how to apply computer technology to big data.


Applied laser ◽  
2013 ◽  
Vol 33 (5) ◽  
pp. 567-572
Author(s):  
张瑄珺 Zhang Xuanjun ◽  
潘涌 Pan Yong ◽  
王健超 Wang Jianchao ◽  
罗曼 Luo Man ◽  
沈一愚 Shen Yiyu ◽  
...  

2012 ◽  
Vol 512-515 ◽  
pp. 361-365
Author(s):  
Yong Wei

The development of biomass energy industry carries a great significance to alleviating the shortage of fossil energy supply, to optimizing energy structure, safeguarding national energy security, and establishing stable energy supply system. In this paper, the writer introduces basic situation and characteristics of biomass energy, then current situation of biomass energy utilization in our country is summarized, and the development prospect and significance of biomass energy are analyzed at last.


2011 ◽  
Vol 84-85 ◽  
pp. 544-547
Author(s):  
En Gao Peng ◽  
Zheng Lin Liu

Rolling bearing is extensively used in various areas including shipbuilding, aircraft, mining, manufacturing, agriculture, etc. The breakdowns of the bearings may do unexpected hazardous to the machinery. Therefore, it is crucial for engineers and researchers to monitor the bearing conditions in time in order to prevent the malfunctions of the plants. Hence the vibration analysis accompanying other condition monitoring methodologies has been successfully used in the field of roller bearings fault diagnosis as well as other key components. The fault diagnosis method of roller bearing using vibration analysis was introduced in this paper. And the development trend of vibration analysis was presented. Meanwhile the main existing problems in fault diagnosis of roller bearing were discussed. It concludes that the integration of vibration analysis and other detection approach can provide effective and reliable fault diagnosis results.


2014 ◽  
Vol 977 ◽  
pp. 149-154
Author(s):  
Hong Yu ◽  
Jun Feng Wang ◽  
Lei Hu

Energy Supply and demand, and carbon emission constraints are the problems that must be considered in the process of rapid economic development by national and every province. Under the constraints of energy supply and demand, and carbon emissions, there has practical significance to rational allocate regional energy utilization. With carbon pinch method, this paper research the energy allocation of Tianjin, establish analysis model. Considering the overall and regional energy demand and carbon emission constraints, to determine the usage amount of every kind of fossil energy and clean energy, in order to achieve the best energy structure and optimal balance between energy supply and demand. To provide scientific evidence for local government to make reasonable energy supply and carbon emission constraint index.


2013 ◽  
Vol 339 ◽  
pp. 558-560
Author(s):  
Xue Song Zhou ◽  
Hao Wu ◽  
You Jie Ma

Dynamic Voltage Restorer, as an important electric power device, used to deal with the voltage sag. In the front of the article, the voltage sag is introduced firstly, and then shows the basic structure and principle of Dynamic Voltage Restorer, research status, existing problems. Finally I will try to give the development trend of Dynamic Voltage Restorer.


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