The Researches on the Current Energy Consumption and Energy-Saving Potential of Beijing Subway

2014 ◽  
Vol 505-506 ◽  
pp. 867-870
Author(s):  
Yun Mo Wang ◽  
Song Pan ◽  
Jin Shun Wu ◽  
Chuan Qi Xu ◽  
Li Fan ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Mass Transit ◽  
The Sustainable Development ◽  
Energy Saving Potential ◽  
Strategic Approach ◽  
Consumption Data ◽  
Urban Mass Transit ◽  
Beijing Subway

Energy conservation is a long-term strategic approach of economic development. Subway is a most important way of urban mass transit, the energy consumption of subway accounted for a large part in mass transit. Therefore, retrofitting the subway for energy saving is close to the current policy, it can relieve the energy pressure, so it plays an important role on the sustainable development of economy. This paper conducted a survey of Beijing subway energy consumption, and summed up annual energy consumption data of the Beijing subway lines. Based on this research, this paper shows the energy-saving potential of the Beijing subway. Also it lays the foundation of energy saving transformation for subway.

scholarly journals Energy audit and conservation potential analysis of a large comprehensive commercial building

2018 ◽  
Vol 22 (Suppl. 2) ◽  
pp. 567-576
Author(s):  
Chunzhi Zhang ◽  
Nianxia Yuan ◽  
Qianjun Mao
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Emission Reduction ◽  
Large Scale ◽  
Rapid Development ◽  
Recovery Period ◽  
Commercial Building ◽  
Energy Saving Potential ◽  
Consumption Data ◽  
Actual Energy Consumption

With the rapid development of large-scale public buildings, energy consumption has increased, of which the energy consumption of comprehensive commercial buildings can reach 10~20 times the common building energy consumption, and has great energy saving potential. In this paper, a large comprehensive commercial building in Chengdu is taken as an example to analyze the energy consumption through the actual energy consumption data, viewed from the energy-saving and emission-reduction and static investment payback period point. The results show that the energy saving rate of the building can be achieved by 32.64%, the emission reduction is 6196.52 t CO2 per year, and the investment recovery period is only about 0.90 years, which provides a reference for similar buildings.

scholarly journals An Improved Forecasting Method and Application of China’s Energy Consumption under the Carbon Peak Target

2021 ◽  
Vol 13 (15) ◽  
pp. 8670
Author(s):  
Xiwen Cui ◽  
Shaojun E ◽  
Dongxiao Niu ◽  
Dongyu Wang ◽  
Mingyu Li
Keyword(s):  
Sustainable Development ◽  
Energy Consumption ◽  
Environmental Pollution ◽  
Optimization Methods ◽  
Support Vector ◽  
The Sustainable Development ◽  
Consumption Data ◽  
Forecasting Method ◽  
Forecasting Performance ◽  
Carbon Peak

In the process of economic development, the consumption of energy leads to environmental pollution. Environmental pollution affects the sustainable development of the world, and therefore energy consumption needs to be controlled. To help China formulate sustainable development policies, this paper proposes an energy consumption forecasting model based on an improved whale algorithm optimizing a linear support vector regression machine. The model combines multiple optimization methods to overcome the shortcomings of traditional models. This effectively improves the forecasting performance. The results of the projection of China’s future energy consumption data show that current policies are unable to achieve the carbon peak target. This result requires China to develop relevant policies, especially measures related to energy consumption factors, as soon as possible to ensure that China can achieve its peak carbon targets.

scholarly journals Systematic Method for the Energy-Saving Potential Calculation of Air-Conditioning Systems via Data Mining. Part I: Methodology

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 81
Author(s):  
Rongjiang Ma ◽  
Shen Yang ◽  
Xianlin Wang ◽  
Xi-Cheng Wang ◽  
Ming Shan ◽  
...  
Keyword(s):  
Data Mining ◽  
Energy Consumption ◽  
Energy Saving ◽  
Air Conditioning ◽  
Storage System ◽  
Operation Mode ◽  
Systematic Method ◽  
Potential Analysis ◽  
Energy Saving Potential ◽  
Air Conditioning Systems

Air-conditioning systems contribute the most to energy consumption among building equipment. Hence, energy saving for air-conditioning systems would be the essence of reducing building energy consumption. The conventional energy-saving diagnosis method through observation, test, and identification (OTI) has several drawbacks such as time consumption and narrow focus. To overcome these problems, this study proposed a systematic method for energy-saving diagnosis in air-conditioning systems based on data mining. The method mainly includes seven steps: (1) data collection, (2) data preprocessing, (3) recognition of variable-speed equipment, (4) recognition of system operation mode, (5) regression analysis of energy consumption data, (6) constraints analysis of system running, and (7) energy-saving potential analysis. A case study with a complicated air-conditioning system coupled with an ice storage system demonstrated the effectiveness of the proposed method. Compared with the traditional OTI method, the data-mining-based method can provide a more comprehensive analysis of energy-saving potential with less time cost, although it strongly relies on data quality in all steps and lacks flexibility for diagnosing specific equipment for energy-saving potential analysis. The results can deepen the understanding of the operating data characteristics of air-conditioning systems.

Study on movable light-shelf system with location-awareness technology for lighting energy saving

2016 ◽  
Vol 26 (6) ◽  
pp. 796-812 ◽  
Author(s):  
Heangwoo Lee ◽  
Sang-hoon Gim ◽  
Janghoo Seo ◽  
Yongseong Kim
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Energy Savings ◽  
Full Scale ◽  
Location Awareness ◽  
Energy Saving Potential ◽  
Recent Increase ◽  
Lighting Energy ◽  
External Conditions ◽  
Incoming Light

Various ongoing studies regard light-shelves as one solution to the recent increase in lighting energy consumption. However, in previous light-shelf systems, the direction of incoming light was determined by external conditions, thereby limiting the efficiency of lighting energy saving. The purpose of the present study was to develop a movable light-shelf system with location-awareness technology and verify its performance. In this study, a full-scale testbed was established in order to test the proposed movable light-shelf system with location awareness as well as to verify its energy saving potential. The results were analysed and compared with the performances of previous fixed (Case 1) and movable (Case 2) light-shelf systems without location-awareness technology. The obtained results were as follows. (1) The proposed light-shelf system can respond to external conditions and to the location of the occupant by means of the control axis of the light-shelf module angle through modulation between the control axis of the angle of the previous light-shelf and the reflector of the light-shelf. (2) The proposed light-shelf system provides 90.0% and 86.6%/91.0% energy savings in comparison to Case 1 and Case 2, respectively.

Analysis of Energy-Saving Design in Architectural Design

2014 ◽  
Vol 1030-1032 ◽  
pp. 2411-2414
Author(s):  
Jiang Nan Han ◽  
Qi Chen ◽  
Ying Chen ◽  
Yan Wang ◽  
Xiao Long Liu
Keyword(s):  
Sustainable Development ◽  
Energy Consumption ◽  
Urban Development ◽  
Energy Saving ◽  
Construction Industry ◽  
Architectural Design ◽  
Optimization Problem ◽  
Energy Crisis ◽  
Design Phase ◽  
The Sustainable Development

With increasingly serious energy crisis, the construction industry is one of the three major energy consumption industries. How to realize the sustainable development of energy, promote energy-saving building, realize ecological urban development, have become the focus of construction industry. This paper analyzes and discusses the energy saving measures should be taken into consideration when the different architectural design phase and the two kinds of optimization problem under arbitrary axisymmetric load.

Analysis for Energy Savings Potential and Economics of Combined Air-Conditioning System with Temperature and Humidity Decoupled Treatment

2011 ◽  
Vol 280 ◽  
pp. 71-75
Author(s):  
Zhong Chao Zhao ◽  
Dong Hui Zhang ◽  
Yu Ping Chen
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Air Conditioning ◽  
Energy Savings ◽  
Operating Cost ◽  
Air Conditioning System ◽  
Operation Mechanism ◽  
Energy Saving Potential ◽  
Temperature And Humidity

In this paper, the operation mechanism of combined air-conditioning system with temperature and humidity decoupled treatment (CACSTHDT) was presented, and the energy saving potential and economics of CACSTHDT were primarily analyzed through compared with a traditional air-conditioning system. The results indicated that CACSTHDT could save up to 28.64% energy consumption in comparison with a traditional air-conditioning system. The operating cost in one summer only was 71.36% of that cost of traditional air-conditioning system.

Research on the Energy Saving Potential of Official Cars in China

2011 ◽  
Vol 128-129 ◽  
pp. 1217-1221
Author(s):  
Quan Le Liu ◽  
Wei Chen
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Fuel Efficiency ◽  
High Energy ◽  
Maintenance Cost ◽  
Strategy Method ◽  
Energy Saving Potential ◽  
Energy Consuming

The quantity of official cars increased with the speed exceeding 20% every year which need much more energy be consumed to meet the official car needs. To investigate the energy saving potential of official cars in China, This paper introduced the strategy method with systemic viewpoint to reduce official cars energy consumption through analyzing the reason of high energy consuming of official cars. The resulted showed that only reduce the quantities and maintenance cost, and decline the displacement and using frequency can realize fuel efficiency of official cars.

The Dynamic Relationship between Economic Development and Energy Consumption: Evidence from China

2011 ◽  
Vol 347-353 ◽  
pp. 3215-3218
Author(s):  
Hua Xin Zhang ◽  
Hai Ying Liu
Keyword(s):  
Economic Development ◽  
Energy Consumption ◽  
Energy Saving ◽  
Cointegration Test ◽  
Dynamic Relationship ◽  
The Relationship ◽  
Main Factor

The traditional opinions regard energy as the main factor for the economic development, but not the key one, because there are different conclusions from the practical researches on the relationship between the energy consumption and economic development. The article utilizes the Granger casual test and Cointegration test to analyze the dynamic relationship between energy consumption and economic development in China. Based on our conclusion that economic development relies on energy consumption, some suggestions are given for energy saving and development in the long-term.

The Research on the Potential of Energy Saving and Emission Reduction in Hospitality

2013 ◽  
Vol 448-453 ◽  
pp. 4365-4368 ◽  
Author(s):  
Qi Huang ◽  
Jian Cheng Kang ◽  
Chen Hao Huang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Future Study ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Hospitality Industry ◽  
Conversion Factor ◽  
Eastern China ◽  
Factor Matrix ◽  
Consumption Data

Hospitality industry in China has undergone a breath-taking development in recent years. However, it is burdened both by tremendous energy consumption and the responsibility of environmental protection. The paper is trying to find out the potential in the energy saving and emission reduction. Energy consumption data, in the recent five years, are collected from more than 20 hotels in Shanghai and other eastern China regions. Through the energy conversion factor matrix, these energy consumption factors can be converted into Tce value. Though the analysis of the Tce value, the paper provides a key solution to the problem at hand and possible ways of realizing the goal of establishing basis of carbon emission assessment modeling and cumulative comprehensive energy consumption database suitable for this industry, in the hope of establishing a foundation for future study of carbon footprint of the hospitality industry and its technical proposal for energy saving.

The Studies on the Energy Consumption Quota of State Organ Office Buildings

2011 ◽  
Vol 243-249 ◽  
pp. 5899-5904 ◽  
Author(s):  
Yu Yun Li ◽  
Kai Guo ◽  
Ran Du ◽  
Hai Cheng Li ◽  
Yun Guo Yang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Air Conditioning ◽  
Office Buildings ◽  
Government Organization ◽  
Energy Saving Potential ◽  
Current Stage

The paper gives energy consumption indexes of government organization office buildings at the current stage, and then analyses energy-saving potential of office buildings. Further, it discusses building consumption has a correlation between the heating form of air conditioning and personnel density. Finally, the paper presents the energy consumption quota and the formulating method of using energy quota of state organ office buildings at the current stage.

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