Mathematical Decomposition for Influence Factors of Unit GDP Energy Consumption and Demonstration in China

2012 ◽  
Vol 601 ◽  
pp. 437-448
Author(s):  
Chun Yan Dai ◽  
Xi Liang Zhang ◽  
En Chuang Wang ◽  
Zhen Liu ◽  
Ming Hui Li ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Intensity ◽  
Influence Factors ◽  
Structural Factors ◽  
Dramatic Decrease ◽  
Methodological Foundation ◽  
Energy Efficiency Improvement ◽  
Fundamental Reason

Analysed various influence factors of unit GDP energy consumption, discussed the mathematical decomposition and calculation method and did empirical analysis of the influence and role on unit GDP energy consumption changes since “The Fifth Five-Year Plan”.The main conclusions are:(1) the drop of the energy efficiency is caused both by technical factors and structural factors , in which structural factors being the fundamental reason during the Eleventh Five-Year period. (2) technological energy saving is the main direct driving force of the dramatic decrease in energy intensity of China , and the alternation of structural energy saving from negative to positive is the crucial factor determining the dramatic decrease of the energy intensity of China ,and energy-saving in livelihood is a stable impetus for improving China energy efficiency improvement in the Eleventh Five-Year period .The research provided the methodological foundation for exploring the specific ways to achieve the energy efficiency goal of “The Twelfth Five-Year Plan” and also to provide a reference for the policy making of “The Twelfth Five-Year Plan” energy efficiency.

District Energy-Saving Measures and their Selection Method

2013 ◽  
Vol 724-725 ◽  
pp. 951-954
Author(s):  
Xiang Qian Li
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Energy Intensity ◽  
Influence Factors ◽  
Household Energy ◽  
Household Energy Consumption ◽  
District Energy ◽  
Per Capita ◽  
Value Determination ◽  
The Government

Per GDP energy consumption is the main indicator of district energy-saving effect. The Article firstly analyzed the influence factors of per GDP energy consumption. Then summarized energy-saving measures as six aspects: optimizing industrial structure; reducing energy intensity of industries; reducing per capita household energy consumption; limiting resident population; improving efficiency of energy conversion; improving energy storage and transportation management level. According to implementing body, energy-saving measures are divided into government measure and enterprise measure. District energy-saving measures mainly refer to the government measures. The selection course of district energy-saving measures is divided into five steps: initial prediction of per GDP energy consumption of term-end; analysis of measures of reducing industry energy intensity, per capita household energy consumption and energy loss; second prediction of per GDP energy consumption of term-end; compare with the target value; determination of district energy-saving measures.

Analysis on the Effect Factors of the Passenger Transportation Energy Consumption Intensity

2013 ◽  
Vol 421 ◽  
pp. 910-916
Author(s):  
Xu Wu ◽  
Shuang Lang ◽  
Xiao Qing Guo
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Intensity ◽  
Effect Factors ◽  
Transportation Energy ◽  
Complete Decomposition ◽  
Energy Saving Potential ◽  
Passenger Transportation ◽  
Consumption Intensity

This article proposes using passenger transportation energy intensity to measure the energy utility efficiency and energy-saving potential of the passenger transportation, uses the complete decomposition model to decompose the passenger transportation energy intensity from 1990 to 2007, and then investigate how various factors impact passenger transportation energy intensity. As is shown in the results, transportation structure increases passenger transportation energy intensity, while energy efficiency decreases it, however the decline is limited. Thus energy saving caused by adjustment of transportation structure is much more considerable.

scholarly journals Methods of determination of product energy intensity on the example of a grain elevator

2021 ◽  
Author(s):  
V. Korenda ◽  
◽  
O. Protasov ◽  
I. Vyshniakov ◽  
M. Kolyadyuk ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Management ◽  
Energy Intensity ◽  
Energy Budgets ◽  
Professional Activity ◽  
Energy Management Systems ◽  
Industrial Enterprises ◽  
Grain Elevator

Energy management is an independent type of professional activity aimed at achieving in the course of any business activity of an enterprise operating in market conditions, reducing costs by improving energy efficiency. Energy management includes a set of measures aimed at saving energy resources: monitoring of energy consumption and energy intensity of products, development of energy budgets, analysis of existing indicators as a basis for drawing up new budgets, development of energy policy, planning of new energy saving measures. This article describes the methodology for determining the energy intensity of products for industrial enterprises, namely energy intensity indicators. These values include: norms of consumption of heat and electricity per unit of industrial production, as well as norms of consumption of fuel and electricity for the supply of heat to the boiler plant of the enterprise. These numbers are indicators of energy efficiency that need to be calculated when implementing energy management systems at enterprises. They are the benchmarks by which the current state of energy efficiency is assessed and planned for the future, taking into account changes in output, implementation or dismantling of equipment, implementation of energy-saving measures, etc. The article shows the calculation of energy consumption of products by the example of a grain elevator.

scholarly journals A Review on Energy Consumption, Energy Efficiency and Energy Saving of Metal Forming Processes from Different Hierarchies

Processes ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 357 ◽  
Author(s):  
Mengdi Gao ◽  
Kang He ◽  
Lei Li ◽  
Qingyang Wang ◽  
Conghu Liu
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Metal Forming ◽  
Manufacturing Industry ◽  
Control Process ◽  
System Level ◽  
Energy Efficiency Improvement ◽  
Impact Reduction ◽  
And Control

Energy efficiency improvement and environmental impact reduction are emerging issues in the manufacturing industry. Aside from cutting, metal forming is also an important process in manufacturing. Metal forming is energy intensive because of the low energy efficiency of the used metal forming press. Although many literature reviews focused on the energy reduction and energy efficiency of machine tools, a comprehensive literature review of metal forming processes remains lacking because of the great difference between cutting machines and forming equipment. In addition, methods for energy efficiency and energy-saving still need to be promoted in metal forming. In this review, a novel hierarchy of the metal forming system was presented to describe the relationship among the equipment, process, and manufacturing system, providing a guideline of methods for energy efficiency and saving in metal forming. Then, existing energy consumption modeling and estimation theories and methods were discussed from two aspects. One is energy monitoring and modeling of metal forming equipment, and the other is process energy analysis of metal forming based on different parameters. On the basis of the hierarchy of the metal forming system, the present methods and technologies aiming to promote energy efficiency and energy saving effects were discussed from the aspects of equipment design and control, process optimization, and scheduling management and use. Thus, this review may serve as a reference for the decision-making of producers and managers to realize energy efficiency and energy saving at the system level. In addition, the major points that need attention are accurate energy models and control of forming equipment as well as the integrated optimization of equipment, process, and scheduling.

scholarly journals Further improvement of methods for determining energy efficiency of buildings and structures in the Republic of Kazakhstan

2020 ◽  
Vol 18 (4) ◽  
pp. 555-560
Author(s):  
Rashid Sharipov ◽  
Olga Kudrevich ◽  
Syrymgali Yerzhanov ◽  
Madina Shavdinova ◽  
Dinara Tyulyubayeva
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Residential Buildings ◽  
Integrated Approach ◽  
Energy Resources ◽  
Successful Implementation ◽  
Energy Efficiency Improvement ◽  
The Republic ◽  
Energy Efficiency Policies

One of the most important strategic objectives is to create a sustainable model for the development of the Kazakhstan economy, which is closely linked to the solution of energy saving and energy efficiency in the construction industry. The main principles of the energy efficiency strategy include integrated approach (efficient use of energy at all stages of the facility's life cycle for all types of energy resources, with legal support and organizational and technical control by the state) and systematic approach (the study of the process using general rather than partial approach). The article analyzes key problems and barriers that prevent the successful implementation of energy saving and energy efficiency policies. A significant role in the rational use of energy resources belongs to the regulatory framework. It was revealed that currently existing regulatory and technical documents in the country, unlike similar documents in EU countries, have a number of inaccuracies and disadvantages that do not allow for a full accounting of energy consumption. At present, there is practically no effective methodology for determining the energy efficiency of residential buildings and structures in Kazakhstan. In this regard, a methodology for determining the energy efficiency of buildings and structures, harmonized with EU requirements (taking into account energy consumption for heating, ventilation, high-temperature water supply, cooling and lighting) is currently being developed. The energy efficiency improvement of new, renovated and operated buildings will make it possible to reduce greenhouse gas emissions, thus contributing to solving both global environmental problems and energy and environmental security in the Republic of Kazakhstan.

scholarly journals Energy conservation and energy efficiency improvement in Russian agribusiness

2021 ◽  
Vol 244 ◽  
pp. 03009
Author(s):  
Liliya Akhmetshina ◽  
Kirill Grabovyy
Keyword(s):  
Energy Efficiency ◽  
Energy Conservation ◽  
Energy Saving ◽  
Agricultural Production ◽  
Energy Intensity ◽  
Agricultural Sector ◽  
High Energy ◽  
Agricultural Products ◽  
Energy Efficiency Improvement ◽  
High Level

Energy saving and increasing energy efficiency of agribusiness are aimed at producing higher quality agricultural products with minimal consumption of fuel and energy resources. At the same time, energy conservation implies a decrease in the need for energy capacities, a decrease in the energy intensity of production in general, and the introduction of energy-saving technologies. The aim of the study is to assess the state of energy efficiency in agricultural production and substantiate the need for the introduction of energy-saving technologies by agribusiness entities to ensure sustainable development and a high level of competitiveness of agricultural products. The study made it possible to identify the specific features of the energy supply of the agricultural sector and the main reasons for the high energy intensity and low energy efficiency of agricultural production. As a result of the study of promising developments in the field of energy conservation and existing energy-saving technologies, organizational and economic measures aimed at increasing energy efficiency and reducing the energy intensity of agricultural production were determined.

Additional methods to improve the energy efficiency of oil pipeline transportation

2020 ◽  
Vol 10 (5) ◽  
pp. 558-565
Author(s):  
Marat R. Lukmanov ◽  
◽  
Sergey L. Semin ◽  
Pavel V. Fedorov ◽  
◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Pipeline System ◽  
Energy Costs ◽  
Improvement Program ◽  
Oil Pipeline ◽  
Energy Efficiency Improvement ◽  
Oil Transportation ◽  
Pumping Equipment ◽  
Preparatory Work

The challenges of increasing the energy efficiency of the economy as a whole and of certain production sectors in particular are a priority both in our country and abroad. As part of the energy policy of the Russian Federation to reduce the specific energy intensity of enterprises in the oil transportation system, Transneft PJSC developed and implements the energy saving and energy efficiency improvement Program. The application of energy-saving technologies allowed the company to significantly reduce operating costs and emissions of harmful substances. At the same time, further reduction of energy costs is complicated for objective reasons. The objective of this article is to present additional methods to improve the energy efficiency of oil transportation by the example of the organizational structure of Transneft. Possibilities to reduce energy costs in the organization of the operating services, planning and execution of work to eliminate defects and preparatory work for the scheduled shutdown of the pipeline, the use of pumping equipment, including pumps with variable speed drive, the use of various pipelines layouts, changing the volume of oil entering the pipeline system and increase its viscosity.

The Research of Measuring Approach and Energy Efficiency for Hadoop Periodic Jobs

2015 ◽  
Vol 8 (1) ◽  
pp. 206-210 ◽  
Author(s):  
Yu Junyang ◽  
Hu Zhigang ◽  
Han Yuanyuan
Keyword(s):  
Energy Efficiency ◽  
Cloud Computing ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Estimate ◽  
Cloud Platform ◽  
Periodic Tasks ◽  
Current Consumption ◽  
Reduce Energy Consumption

Current consumption of cloud computing has attracted more and more attention of scholars. The research on Hadoop as a cloud platform and its energy consumption has also received considerable attention from scholars. This paper presents a method to measure the energy consumption of jobs that run on Hadoop, and this method is used to measure the effectiveness of the implementation of periodic tasks on the platform of Hadoop. Combining with the current mainstream of energy estimate formula to conduct further analysis, this paper has reached a conclusion as how to reduce energy consumption of Hadoop by adjusting the split size or using appropriate size of workers (servers). Finally, experiments show the effectiveness of these methods as being energy-saving strategies and verify the feasibility of the methods for the measurement of periodic tasks at the same time.

Empirical Research on Energy Consumption Structure and Energy Efficiency - Evidence from Zhejiang Province

2012 ◽  
Vol 524-527 ◽  
pp. 3079-3082
Author(s):  
Di Ping Zhang ◽  
Shuang Shuang He ◽  
Gao Qing Li
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Comparative Analysis ◽  
Statistical Method ◽  
Influence Factors ◽  
Present Situation ◽  
Zhejiang Province ◽  
Elasticity Coefficient ◽  
Consumption Structure ◽  
Policy Suggestions

Taking Zhejiang province as an example, this paper conducted a comparative analysis on the current situation of the energy consumption structure from the vertical and horizontal using the descriptive statistical method. By calculating some indexes such as energy consumption per unit GDP, energy consumption elasticity coefficient, and so on, the study analyzes and evaluates the present situation, trend and influence factors of energy efficiency. Finally, it puts forward some policy suggestions about the optimization of energy consumption structure and energy efficiency.

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