A high-efficiency isothermal CAES concept was theoretically and empirically developed herein and applied to a case study to evaluate the feasibility of leveraging the capacity of underground reservoirs of abandoned oil/gas wells and coal mines. Integration of underground energy storage with wind was predicted to yield a …
It will save 960,000 tons of standard coal and reduce CO2 emissions by 2.62 million tons per year, and provide green energy for the west-to-east power transmission project. The project takes advantage of the abundant sunshine of the Ningxia Ningdong Energy Base and builds photovoltaic stations in coal mine reserve areas, goafs, …
Hydrogen, seen as a fossil fuel alternative that can be stored more efficiently than solar or wind energy, features prominently in Ningdong''s clean energy push.
In this paper, the effects of different Al 2 O 3 /CaO on the mineral conversion, melting temperature and viscosity of Ningdong coal ash are studied by the combination of experiment and simulation. The trend of melting temperature decreases firstly and rises with increasing Al 2 O 3/CaO. The ash melting point reached to the lowest …
Introduction Coal is a significant part of the world''s fossil fuels, which is mainly used for combustion power generation. The carbon dioxide (CO 2) emission from coal combustion is intensifying the process of global warming [1].Nowadays, CO 2 capture and separation technology has been widely concerned, but it will increase the energy …
eering geological conditions of Ningdong mining area and the specific parameters of the artificial dam, the maximum water pressure that the artificial dam body can with- stand is 25 m.
The ecological stability of mining areas in Northwest China has been threatened by desertification for a long time. Remote sensing information combined with machine learning algorithms can effectively monitor and evaluate desertification. However, due to the fact that the geological environment of a mining area is easily affected by …
1997. 533. PDF. Material flow analysis (MFA) has become a useful tool fo to analyze the metabolism of social systems. This paper proposes to use the indicators derived from MFA, complemented with water and energy indicators, to analyze the efficiency and the materialization ranks of Ningdong energy (coal) and coal chemical base (China).
The results showed that the Ningdong base in 2005–2018 has been in the stage of sustainable development, mainly in the conversion of grassland, forest land and cultivated land to construction land. High values of rate of change in land use related to the development and new construction and building area.
Geospatial analysis of land use driving force in coal mining area: case study in Ningdong, China ... Results can provide effective data for the future ecological environment protection and sustainable development of Ningdong Energy Base. Remote sensing is a good technique for assessing the actual sequence in the development of any area that may ...
3 · Coal consumption will peak by then while the local photovoltaic industry chain will also be improved with its production capacity ranking among the top provinces and …
Geochemical elements are important for judging the coal-forming environments and control on pore structure distribution of coal. Geochemical element and reservoir physical property experiments were carried out on the Jurassic Yan''an Formation coal samples from the Ningdong coalfield. Then, the coal-forming environment of …
It is adjacent to Shaanxi Province in the east, Inner Mongolia Autonomous Region in the west and north, and Gansu Province in the south. There are many coal mines, coal-fired power plants and coal chemical plants in Ningdong Base, forming the "Golden Triangle" of energy and chemical industry together with Yulin Base and Ordos …
1997. 533. PDF. Material flow analysis (MFA) has become a useful tool fo to analyze the metabolism of social systems. This paper proposes to use the indicators derived from MFA, complemented with water and energy indicators, to analyze the efficiency and the materialization ranks of Ningdong energy (coal) and coal chemical base (China).
Geospatial analysis of land use driving force in coal mining area: case study in Ningdong, China April 2021 ... ecological environment in Ningdong energy and chemical industry base. Water ...
trace elements behavior during coal cleaning, weathering, leaching, combustion, and conversion (Tian et al., 2013). Ningdong Coalfield is one of the most important coal mining areas located in the western edge of Ordos Basin (Fig. 1) (Wang, 1996). A lot of researchers have studied the maceral, mineralogy and geochemistry of coals in
In view of the current and urgent environmental protection needs, the use of industrial solid waste in China''s Ningdong is becoming more and more important. In this paper, NaP zeolite with good physical properties is synthesized by using coal gasification coarse slag (CGCS) as the raw material, without the addition of a silicon and aluminum …
Recently, the 60MW electrochemical energy storage project of the 1-2 and 6-7 generation units at Guangdong Taishan Power Plant under CHN Energy, the largest electrochemical …
River basin. Owing to shallow and abundant coal reserves, this area has attracted two large energy bases, namely, Ningdong and Shendong. However, the eco-environment is …
Ningdong coal mining is mostly shaft mining. The area of industrial squares is 22.07 km 2, the area of solid waste is 21.59 km 2, the area of coal storage sites is 11.61 km 2, and the area of coal gangue piles is 10.25 km 2, which take up less land.
In this paper, four mining levels in a closed coal mine in the Asturian Central Coal Basin (NW Spain) have been selected as a case study to investigate the technical feasibility of ...
Turning abandoned mines into energy storage is one example of many solutions that exist around us, and we only need to change the way we deploy them," study co-author Behnam Zakeri said. A novel ...
Exploring advanced technology of coal-mining subsidence disaster monitoring is an important task to promote the monitoring better. Colliery subsidence disaster monitoring using UAV LiDAR is a new ...
This marks the completion and operation of the largest grid-forming energy storage station in China. The photo shows the energy storage station supporting the Ningdong Composite Photovoltaic Base Project. This energy storage station is one of the first batch of projects supporting the 100 GW large-scale wind and photovoltaic bases …
Water-conducting fractured zone is the direct inducement of water inrush, water losing, and environmental deterioration in coal mines. How to predict the height of water-conducting fractured zone economically and accurately has always been the research difficulty of water-preserved mining. The paper selects the Meihuajing coal mine in …
Regarding other EU countries, in Poland there are several active underground coal mines, in Spain there is only one active underground coal mine and in France, the last coal mine closed in 2004. Table 1 shows the main potential underground mines in UE valid for energy storage and geothermal applications.
In the coal mine, belt conveyors (BCs) are deployed to deliver raw coal with energy consumption, which are coupled with the energy system and transportation network in a coal mine. In order to improve the energy efficiency of the BCs, some studies have been conducted to obtain the optimal control of the BC system.
A pressure-state-response concept model based on mining land subsidence is proposed to build an evaluation index system in coal mines and the assessment results of the cloud model are closer to the actual situation than the probability integration method. Research on land subsidence is a global topic. In recent years, the environmental problems caused by …
The thermal decomposition of coal was the essential step of many reactions, thus it was widespread concerned. In order to investigate the behaviors and kinetics of coal pyrolysis, coal samples which obtained from Ningdong coalfield of China were pyrolyzed with a tubular furnace in argon atmosphere at the heating rate of 5 K min −1.The primary …
Research Article Multiscale Intelligent Inversion of Water-Conducting Fractured Zone in Coal Mine Based on Elastic Modulus Calibration Rate Response and Its Application: A Case Study of Ningdong Mining Area Huicong Xu,1 Xingping Lai,1,2 Shuai Zhang,1 Yun Zhang,1,2 Pengfei Shan,1,2 ...
Water, Energy and Food (WEF) are coordinated and constrained by each other, constituting a multivariate coupled feed-forward dynamical system. Traditional modeling and simulation methods struggle to model and simulate complex interactions in the WEF nexus. Therefore, we proposed and developed an agent-based model, which is one …
On July 25, the Lingwu 2GW composite photovoltaic base project in the Lingshao DC coal mining subsidence area of Ningxia Electric Power Co., Ltd., a …
As a major energy-intensive industry, the coal mine industry highly depends on the electricity supply in its production process. In China, the total annual power consumption of the coal mining and preparation process was 90.628kWh in 2018 [1].