scholarly journals Towards Industrial Energy Efficiency Index

2020 ◽  
Vol 24 (1) ◽  
pp. 419-430
Author(s):  
Kristiāna Dolge ◽  
Anna Kubule ◽  
Stelios Rozakis ◽  
Inga Gulbe ◽  
Dagnija Blumberga ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Composite Index ◽  
Efficiency Index ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Industrial Energy ◽  
Efficiency Performance ◽  
First Results ◽  
Industrial Energy Efficiency

AbstractThe study analyses factors that determine industrial energy efficiency. Composite index methodology was applied to evaluate energy utilization efficiency levels across different industrial sub-sectors. In total 12 indicators were incorporated in 3 main dimensions – economic, technical, and environmental. The first results for dimension sub-indices of the 18 main manufacturing sub-sectors in Latvia were presented and discussed. The findings of the study indicated that sector-specific disparities exist that significantly impact the energy efficiency performance of each industrial sub-sector.

scholarly journals An Energy Efficiency Index Formation and Analysis of Integrated Energy System Based on Exergy Efficiency

2021 ◽  
Vol 9 ◽  
Author(s):  
Huiling Su ◽  
Qifeng Huang ◽  
Zhongdong Wang
Keyword(s):  
Energy Efficiency ◽  
Evaluation Model ◽  
Second Law Of Thermodynamics ◽  
Energy System ◽  
Efficiency Index ◽  
Exergy Efficiency ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Efficiency Evaluation ◽  
Integrated Energy System

In the context of the energy crisis and environmental deterioration, the integrated energy system (IES) based on multi-energy complementarity and cascaded utilization of energy is considered as an effective way to solve these problems. Due to the different energy forms and the various characteristics in the IES, the coupling relationships among various energy forms are complicated which enlarges the difficulty of energy efficiency evaluation of the IES. In order to flexibly analyze the energy efficiency of the IES, an operation efficiency evaluation model for the IES is established. First, energy utilization efficiency (EUE) and exergy efficiency (EXE) are proposed based on the first/second law of thermodynamics. Second, the energy efficiency models for five processes and four subsystems of the IES are formed. Lastly, an actual commercial-industrial park with integrated energy is employed to validate the proposed method.

scholarly journals Research on The Utilization Efficiency of New Energy Technologies in China

2020 ◽  
Author(s):  
Ming-yan Liao ◽  
Yan-lan Wang ◽  
Yan-zi He
Keyword(s):  
Energy Efficiency ◽  
Technical Efficiency ◽  
New Technology ◽  
Efficiency Index ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Social Progress ◽  
Energy Technologies ◽  
Significant Downward Trend ◽  
New Energy

Abstract Energy is an important driving force of human social progress and national economic development and makes crucial the concept of energy utilization efficiency. This paper uses panel data of the DEA model to measure China's thirty provinces from 2010 to 2019 against the energy efficiency index, a new technology to describe the energy efficiency of new technology in Chinese provinces. The empirical study found that the efficiency of China's new energy technology contains obvious regional characteristics, and that the provinces’ domain energy new technology using comprehensive efficiency and technical efficiency is highly uneven. Compared with the average level, the comprehensive efficiency and technical efficiency of the new energy technologies in the eastern and western regions of China from 2010 to 2019 showed a significant downward trend.

Analysis of China’s Provincial Energy Efficiency Based on the Generalized DEA Method

2014 ◽  
Vol 953-954 ◽  
pp. 890-895
Author(s):  
Hui Min Li ◽  
Cun Bin Li ◽  
Zhan Xin Ma
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Total Energy Consumption ◽  
Rapid Economic Growth ◽  
Technology Changes ◽  
Dea Method ◽  
Save Energy ◽  
The Impact

In recent years, with the rapid economic growth, the demand on the amount of energy in China is increasing. So the problem of how to improve the energy utilization efficiency and save energy consumption has to be tackled. The traditional CCR model and BCC model used in the study of provincial energy efficiency do not take the impact of technological progress into consideration. Therefore, the paper uses the generalized DEA method to research the energy utilization efficiency of China’s 29 provinces, that is, to evaluate and analyze the energy utilization efficiency by selecting the capital stock, employment and total energy consumption of China’s provinces as input factors and GDP, per capital GDP as output factors, and then draw tables showing each province’s change of average annual overall efficiency and the pure technology changes, and finally analyze the regularities underlying these changes.

Techno-economic impact assessments of energy efficiency improvements in the industrial combustion systems

2021 ◽  
pp. 1-22
Author(s):  
Eva McLaughlin ◽  
Jun-Ki Choi ◽  
Kelly J. Kissock
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Carbon Dioxide Emissions ◽  
Environmental Benefits ◽  
Medium Size ◽  
Economic Framework ◽  
Industrial Energy ◽  
Combustion Systems ◽  
Energy Audits ◽  
Industrial Energy Efficiency

Abstract Industrial energy efficiency assessments not only provide benefits to manufacturers, but also generate significant economic and environmental benefits to localities, states, and the nation through indirect and induced benefits. Quantifying these benefits requires a systematic economic framework for capturing these interactions. This article employs methodologies for improving the energy efficiency of small and medium-size industry through their combustion systems. Combustion systems offer large opportunities to enhance energy efficiency through adopting advanced technologies and better-informed operations. The case studies presented illuminate the potential savings and impacts from implementing energy-efficient combustion recommendations and the importance of energy audits and energy efficiency in the fight against climate change. This study describes and quantifies the cascading economic and environmental impacts of implementing the industrial energy efficiency recommendations offered by an energy auditing program by participating facilities over a ten-year period. Results showed that it is expected that a total of $185M would be saved in energy costs and 2.3 million metric tons of carbon dioxide emissions would be avoided annually, and about 972 jobs could be created in the studied region if all the combustion recommendations would be implemented. The broader view afforded by the proposed study can be used to support better energy efficient practices in manufacturing facilities, communities, and states.

Sign in / Sign up

Export Citation Format

Share Document