Design requirements for coal mine tunnel energy storage solutions
Design requirements for coal mine tunnel energy storage solutions
Stockpiles and reclaim tunnels
A mine operator of a coal mine must ensure that when preparing the inspection plan for the mine, the areas where dumps or stockpiles are being used are included as part of the
The Design and Analysis of a Split Type Full Hydraulic
Directional drilling technology in coal mine is a key technology for controlling coal gas and ensuring efficient production. As coal mine tunnel development of drilling technology
Plant Design: Trends in Coal Pile Design
Case #3: Coal Terminal for Australian Mine. The Callide Coal Mine in Queensland, Australia, owned and operated by Shell Coal, wanted to build a terminal to facilitate the storage, homogenization
Design and optimization of intelligent ventilation system
*Corresponding author''s e-mail:280210058@qq Design and optimization of intelligent ventilation system in coal mine Yong Wan1,2,* 1China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400039, China 2State Key Laboratory of Coal Mine Disaster Prevention and Control, Chongqing 400037, China Abstract: With the continuous
Challenges and opportunities of using tunnel boring machines in mining
Following the introduction, Section 2 describes the genesis of mines and the stemming geological difficulties for TBM tunnelling and compares the differences of TBM tunnelling in the mining and civil projects. Section 3 presents the historical use of TBMs in hard rock mines and coal mines since the pioneering work in the 1960s and discusses the general
Technical feasibility of lined mining tunnels in closed coal mines
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 underground compressed air energy storage systems.
Efficient utilization of abandoned mines for isobaric
The number of abandoned coal mines will reach 15000 by 2030 in China, and the corresponding volume of abandoned underground space will be 9 billion m 3, which can offer a good choice of energy storage with large capacity and low cost for renewable energy generation [22, 23].WP and SP can be installed at abandoned mining fields due to having large occupied
Ventilation fan requirements for underground mining
In QLD Australia, the Coal Mining Safety and Health Regulation 2017 sets out the requirement for a ventilation plan while also giving guidance on how to achieve an effective ventilation system. The key to an effective underground mining ventilation system is good planning and design.
Mining & Tunnelling Cables
Underground Mining Longwall Mining (Coal Shearer) Longwall mining is a form of underground mining where a long wall of coal is mined in a single slice (typically 0.6–7.0 m thick). The longwall panel (the block of coal that is being mined) is typically 3–4 km long and 250–400 m wide. The coal is cut from the
A review on the development of compressed air energy storage
The general parameter requirement for energy storage system to participate in power auxiliary service was 10 MW and above, and continuous charge and discharge times were greater than 1 h. the huge number of abandoned coal mine tunnels can be an effective solution to the limited availability of salt caverns for the implementation of CAES in
Coal Mine Lighting Solution
With the promotion of national energy saving and emission reduction, green lighting policies, and the upgrading and optimization of L ED mining lamps in material selection, explosion-proof design, LED light source,
General Principles of Mine Design
Design development in the Polish mining industry was prompted by the necessity of modernizing and extending the existing hard-coal mines after the end of World War II. It became imperative to design and construct new hard-coal mines especially for coking coal, on a scale dictated by the rapid industrial and economic growth of the new Poland.
Numerical simulation on cavern support of compressed air energy storage
A reasonable support could ensure the stability and tightness of underground caverns for compressed air energy storage (CAES). In this study, ultra-high performance concrete (UHPC) and high-temperature resistant polyethylene were used for structural support and tightness of caverns excavated in hard rock.Laboratory experiments were conducted to
Design of a New Compressed Air Energy Storage System
The present study focuses on the compressed air energy storage (CAES) system, which is one of the large-scale energy storage methods. As a lot of underground coal mines
Overview of converting abandoned coal mines to
Therefore, the primary objective of this paper is to employ the principal requirements pertinent to UPSP within the context of abandoned mining sites, regarding the
coal mine tunnel compressed air energy storage power station
Overview of current compressed air energy storage projects and analysis of the potential underground storage . There are plans to adapt a network of tunnels from a previously used
Guidelines MDG 28: Safety requirements for coal
dozers to be used to facilitate handling requirements. In most cases these coal stockpiles are over a reclaiming tunnel. Coal stockpiles are either run of mine or washed product stockpiles created from the coal mining and coal washing processes. 1.4.4 Dozer driver
Adaptive Modification of TBM Tunneling in Coal
Many mines have introduced the tunnel boring machine (TBM) to improve the efficiency of rock tunneling because of its high propulsion capacity, safe working space, and intelligent equipment.
Tunneling in abandoned coal mine areas: Problems, impacts
The tunnel design and construction in abandoned coal mine areas confront many challenges. Because of the historical reasons as well as complicated geologic and mining features, it is difficult to
GUIDELINES FOR THE INTEGRATED PLANNING AND
The systematic planning and design process for underground coal mining operations – from inception to closure 1. PHASE 1: INVESTIGATIVE STUDIES 1.1 Market analysis The mine planning and design process for any new coal mining operation commences with the identification and analysis of specific market needs and requirements. These needs and
Energy from closed mines Underground energy storage
Closed mines can be used for the implementation of plants of energy generation with low environmental impact. This paper explores the use of abandoned mines for
Abandoned coal mine tunnels: Future heating/power supply
We have studied three plans for re-use of the abandoned mine roadway tunnels as an energy center. These are the thermostat plan, the thermal accumulator plan, and the CAES plan. Calculations show that the thermostat plan can provide over 15,000 m 2 of building air-conditioning/heating load for each kilometer of roadway, but electric power is needed to run
The Design and Analysis of a Split Type Full Hydraulic
As coal mine tunnel development of drilling technology and equipment level, integrated tracked directional drilling machine cannot meet the general requirements of most coal mines. For this reason, it is an inevitable trend to design a tracked full hydraulic directional drilling Table 1. Design requirements for performance of drilling rig
Production process management for intelligent coal mining
To realize the construction of smart coal mine, the core is to build a DT-driven Coal Mine production control Model (CMM) with data interaction, multisource fusion, holographic perception, process control. Based on the application objects of physical working face and physical entity characteristics of the coal mine, a virtual model is established based on these
Lined rock caverns: A hydrogen storage solution
A spectrum of repositories, depicted in Fig. 1, is viable for hydrogen storage rface storage options, such as storing hydrogen in its liquid state at sub-zero temperatures, have limited capacity and high costs and are more suitable for small-scale energy storage with short charging and discharging times [[20], [21], [22]].As the production of
Reliable Intrinsically Safe Circuit Design Specifications for Oil
Electrical equipment installed in coal mines or oil fields must fulfil the requirements of anti-explosive or explosion-proof. The electrical sparks are frequent due to abnormal operations and
Abandoned coal mine tunnels: Future heating/power supply
The CAES plan proposes using the discarded coal mine tunnel as a peaking power station with an energy storage density over 7000 kJ/m 3. It can be concluded that presently
(PDF) Design of a New Compressed Air Energy
Design of a New Compressed Air Energy Storage System for Application in Coal Mine Roadways For an e ffi cient CAES system, several principles should be followed. (1) The air pressure should
Enhanced evolutionary multi-objective optimization-based dispatch
In the early study, minimizing the operation cost is mostly concerned as dispatch objective for different IES with different components. Considering the bidirectional conversion of electric power and natural gas, Chen et al. [6] established the energy flow optimization model of the integrated natural gas–electric energy system by combining the dynamic characteristics of
Energy from closed mines: Underground energy storage and geothermal
Global energy demand is set to grow by more than a quarter to 2040 and the share of generation from renewables will rise from 25% today to around 40% [1].This is expected to be achieved by promoting the accelerated development of clean and low carbon renewable energy sources and improving energy efficiency, as it is stated in the recent Directive (EU) 2018/2002
WO2019080219A1
A method for using a coal mine underground tunnel for compressed air energy storage: first reconstructing the cross section of the tunnel, specifically comprising: implementing high
VWRUDJH
existing coal mine tunnels, without optimization and retrofitting, may not meet the stability requirements of compressed air energy storage repositories. Sectional transformation is a retrofitting method with excellent optimization effects. In this study, numerical simulation based on Midas software was employed to create a three-dimensional
Geological and mining factors influencing further use of abandoned coal
This paper provides a workflow that outlines key requirements for energy storage in abandoned mines and provides guidelines for conducting a pre-feasibility study by highlighting key datasets to facilitate informed decision-making. To enhance the use of underground coal mines as energy storage solutions, various efforts are needed in
Converting closed mines into giant batteries: Effects of cyclic
A large number of voids from closed mines are proposed as pressurized air reservoirs for energy storage systems. A network of tunnels from an underground coal mine in northern Spain at 450 m depth has been selected as a case study to investigate the technical feasibility of adiabatic compressed air energy storage (A-CAES) systems.
Adaptive Modification of TBM Tunneling in Coal
Many mines have introduced the tunnel boring machine (TBM) to improve the efficiency of rock tunneling because of its high propulsion capacity, safe working space, and intelligent equipment. In contrast, the operating
Underground space utilization of coalmines in China: A
The UWRs primarily comes from the overburden aquifer and surface water. The research by Li et al. (2018) demonstrated that the resulting drainage intensity would enable continuous operation of "aquifer drainage-coal mining-water storage", and that the design satisfies the in-situ drainage and storage requirements.
6 FAQs about [Design requirements for coal mine tunnel energy storage solutions]
Can a compressed air energy storage system be used in coal mines?
The present study focuses on the compressed air energy storage (CAES) system, which is one of the large-scale energy storage methods. As a lot of underground coal mines are going to be closed in China in the coming years, a novel CAES system is proposed for application in roadways of the closing coal mines.
What are the requirements for reclaim tunnels in coal mines?
For reclaim tunnels in coal mines, a hazardous area classification assessment should be made in line with the requirements of AS/NZS 60079.10.1 Explosive atmospheres – Classification of areas – Explosive gas atmospheres and AS/NZS 60079.10.2 Explosive atmospheres – Classification of Areas – Explosive dusts.
Can underground coal mines be used to implement large scale CAES systems?
From the analysis above, we can see that the roadways of underground coal mines can be used to implement large scale CAES systems. Meanwhile, according to the conditions of the coal mines, the pump-hydro and compressed air methods can be combined to realize a new CAES system with constant pressure.
Can a new CAES system be used in a closed coal mine?
As a lot of underground coal mines are going to be closed in China in the coming years, a novel CAES system is proposed for application in roadways of the closing coal mines. The new system combines pumped-hydro and compressed-air methods, and features constant air pressure and temperature.
What are the FRAs requirements for reclaim tunnels?
Section 4.1.5 provides detail on the management of fire and FRAS requirements. Reclaim tunnels should contain means of preventing and suppressing fire, and the early detection of fire. These requirements are outlined in MDG 1032 Prevention of coal mine fires. Mine operators should install a system to suppress fire on the conveyor.
What matters should be considered in a mine system design?
Matters to be considered in the system design include, but are not limited to: response to potential emergency situations on the stockpile or in the reclaim tunnel. Mine operators should implement change management principles where a change to the stockpile and recovery system is considered a risk to workers, equipment, or the environment.
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