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.

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.

The Importance Of Energy Solutions For A Safe And Rational Development

2014 ◽  
Vol 1 (1) ◽  
pp. 379-384
Author(s):  
Daniela Cristina Momete ◽  
Tudor Prisecaru
Keyword(s):  
Industrial Revolution ◽  
New Technology ◽  
Energy System ◽  
Crucial Importance ◽  
Gas Processing ◽  
Energy Technologies ◽  
Rational Development ◽  
Oil Exploitation ◽  
New Energy ◽  
Energy Domain

AbstractA new industrial revolution is on the verge in the energy domain considering the knowledge and skills acquired through the development of new energy technologies. Shale gas processing, unconventional oil exploitation, new exploring/drilling methods, mature renewable energy or in progress, all generated a wealth of knowledge in new technology. Therefore, this paper aims to analyse the positive and negative aspects of energy solutions, and to reveal the way to a world where a valid sustainable development, based on safe and rational premises, is actually considered. The paper also introduces suggestions for the energy system, which has a crucial importance in coping with the resource management of the future, where the economic, social, and environmental/climate needs of the post-crisis world should be suitably considered.

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.

Research on the Influence of Wind Energy on New Energy Utilization Coefficient of EEDI

2013 ◽  
Vol 744 ◽  
pp. 561-565 ◽  
Author(s):  
Cai Ling Li ◽  
Song Zhou ◽  
Ye Han
Keyword(s):  
Energy Efficiency ◽  
Wind Energy ◽  
Alternative Energy ◽  
Energy Utilization ◽  
Calculation Formula ◽  
Energy Technology ◽  
Utilization Coefficient ◽  
New Energy ◽  
Energy Efficiency Design Index ◽  
Great Harm

Currently, the emissions discharged by ships are becoming more and more serious, which brings a great harm to the atmospheric and marine environment. In order to solve the emissions, especially of CO2 emission, the new ship energy efficiency design index (EEDI) has been introduced to reduce it. According to EEDI calculation formula, the use of new energy technology can reduce marine EEDI. Nowadays, wind energy as a clean and renewable energy, is an ideal alternative energy to be applied on ships. But until now, there is still no definite calculation formula and value regulation to parameters involved in the application of new energy on ships, including new energy utilization coefficient.

scholarly journals Impact of waste heat recovery systems on energy efficiency improvement of a heavy-duty diesel engine

2017 ◽  
Vol 38 (3) ◽  
pp. 63-75 ◽  
Author(s):  
Zheshu Ma ◽  
Hua Chen ◽  
Yong Zhang
Keyword(s):  
Energy Efficiency ◽  
Diesel Engine ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Reduction Factor ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Container Ship ◽  
Large Container

Abstract The increase of ship’s energy utilization efficiency and the reduction of greenhouse gas emissions have been high lightened in recent years and have become an increasingly important subject for ship designers and owners. The International Maritime Organization (IMO) is seeking measures to reduce the CO2 emissions from ships, and their proposed energy efficiency design index (EEDI) and energy efficiency operational indicator (EEOI) aim at ensuring that future vessels will be more efficient. Waste heat recovery can be employed not only to improve energy utilization efficiency but also to reduce greenhouse gas emissions. In this paper, a typical conceptual large container ship employing a low speed marine diesel engine as the main propulsion machinery is introduced and three possible types of waste heat recovery systems are designed. To calculate the EEDI and EEOI of the given large container ship, two software packages are developed. From the viewpoint of operation and maintenance, lowering the ship speed and improving container load rate can greatly reduce EEOI and further reduce total fuel consumption. Although the large container ship itself can reach the IMO requirements of EEDI at the first stage with a reduction factor 10% under the reference line value, the proposed waste heat recovery systems can improve the ship EEDI reduction factor to 20% under the reference line value.

The Empirical Research of Energy Utilization Efficiency in Industrial Sectors Based on DEA-Malmquist

2012 ◽  
Vol 463-464 ◽  
pp. 1025-1029
Author(s):  
Ming Xiang Lu ◽  
Guang Wen Ma ◽  
Yan Long Hu ◽  
Jing Wang
Keyword(s):  
Energy Consumption ◽  
Technical Efficiency ◽  
Energy Production ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Regional Research ◽  
Industrial Sectors ◽  
Production And Consumption ◽  
Consumption Energy ◽  
Reducing Energy

This study selected Sichuan Province of China's energy production and consumption province as the regional research object. It studied energy utilization efficiency in industrial sectors from output of energy consumption, energy utilization technical efficiency, pure technical efficiency, and change index of energy utilization efficiency by the data of energy consumption and GDP. The output of energy consumption and energy utilization efficiency were big difference in industrial sectors. It provided the basis of taking different measures according to the different characteristic in industrial sectors while reducing energy consumption and energy conservation

Energy Efficiency in Buildings: Think Pyramids

2012 ◽  
Author(s):  
Essam E. Khalil
Keyword(s):  
Energy Efficiency ◽  
Reference Values ◽  
Rapid Development ◽  
National Development ◽  
Energy Performance ◽  
Energy Resources ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Positive Energy ◽  
Legal Standards

The developing communities in their path for rapid development is endeavoring to make all necessary and appropriate measures to enhance the efficiency of energy utilization and increase the beneficiation of the energy resources. The energy production, transmission, distribution and utilization efficiency becomes a vital factor and measure of national development. Governmental organizations were established earlier to be responsible for energy planning and efficient utilization, information dissemination and capacity building as well as devising the necessary codes and standards. Throughout the Nation, energy resources are widely used and consumption rates are in general exceeding the International accepted values. Energy rationalization and audit exercises were developed and monitored by Governmental Authorities, Universities and Research centers through the past two decades with a definitive positive energy reduction and beneficiation. The development of the relevant codes for Residential and Commercial Energy Efficiency in buildings is underway through the governmental bodies responsible for the research and development in the building Technology sector and is the umbrella under which the National and Unified Arab Codes are developed and issued. A proposed new Energy Performance in Buildings Directive (EPBD) would fulfill the following main targets of energy performance directive: 1. “Legestilative authorities shall ensure that, when buildings are constructed, sold or rented out, an energy performance certificate is made available to the owner or by the owner to the prospective buyer or tenant, as the case might be. … 2. The energy performance certificate for buildings shall include reference values such as currant legal standards and benchmarks in order to make it possible for consumers to compare and assess the energy performance of the building. The certificate shall be accompanied by recommendations for cost-effective improvement of the energy performance…” The following steps shall be required for the energy certification: 1. Develop methodologies for energy declaration of the buildings. 2. Develop reference values (key numbers) and /or systems for benchmarking. 3. Provide a labeling system for selected buildings. 4. Describe an energy signature for the building.

scholarly journals Research on the Impact of Industrial Development on Energy Utilization Efficiency under the Background of Urban Agglomeration Planning

2021 ◽  
Vol 283 ◽  
pp. 02026
Author(s):  
Yuan Zheng ◽  
Bo Yue ◽  
Xuesong Han ◽  
Zheng Li
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Industrial Development ◽  
Urban Agglomeration ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Total Energy Consumption ◽  
Central Cities ◽  
Urban Agglomerations ◽  
The Impact

At present, the trend of central cities leading the development of urban agglomerations and urban agglomerations driving regional development is becoming more and more significant. Based on the panel data of 16 cities in the Chengdu-Chongqing urban agglomeration from 2010 to 2015, this paper uses a fixedeffect model to study the relationship between industrial development and energy efficiency in urban agglomerations, central cities, and surrounding cities. The empirical results show that for the overall urban agglomerations, central cities and surrounding cities, the scale of the secondary industry has a negative correlation with energy consumption per unit of GDP. Industrial development will increase the total energy consumption, but it also contributes to energy efficiency. In order to achieve the goal of "carbon peak and carbon neutrality", cities must find a balance in development and seek ecological protection during development.

Energy Efficiency

Energy ◽  
2012 ◽  
Author(s):  
José Goldemberg
Keyword(s):  
Energy Efficiency ◽  
New Technologies ◽  
Energy System ◽  
Renewable Sources ◽  
Energy Technologies ◽  
System P ◽  
New Energy ◽  
Technical Solutions

What are the existing technical solutions to the present energy system? Existing technical solutions to the present energy system include higher efficiency, increased reliance on renewable sources, deployment of new energy technologies, and policies to accelerate the adoption of new technologies. These solutions are...

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