PDF Energy Savings Through VOD Ventilation on
A thorough investigation of cost savings energy savings and pollution reductions associated with different airflow scenarios utilizing Tandsi underground coal mine ventilation networks were
A thorough investigation of cost savings energy savings and pollution reductions associated with different airflow scenarios utilizing Tandsi underground coal mine ventilation networks were
Advancing intelligent mining and enhancing the reliability of the physical information systems in mines is a current objective for the coal mining industry System resilience reflects the system s ability to handle external and internal disruptions; therefore quantifying the resilience of the mine s cyber physical system CPS allows for the assessment of the
Mine ventilation systems play a key role in creating and sustaining a healthy and safe working environment within the mine and as such should always be maintained at optimal performance levels
Moreover 25% 50% of the total energy consumption of underground coal mines is owing to operating ventilation systems Babu et al 2015 Automated ventilation also known as ventilation on demand VoD has been implemented to reduce ventilation energy consumption and maintain work safety
Switching from conventional mining to mass production technology is the need of the hour to meet the ever increasing coal demand of the country Consequently today s focus is primarily on mine planning for successful implementation of mass production technology in Indian coal mines As per existing norms Coal Mines Regulations No 153 sub clause 2 a
This study investigates the combustion characteristics of the ghosting flame in pool fires within a coal mine dead end roadway by small scale experiments Results indicate that the ghosting flame appears more readily and earlier when the fire source is closer to the heading face or when the oil pan size is larger
The harmful gas in the sealed fire area of a small coal mine rushes into the mining face of the lower coal seam which restricts the efficient promotion of the working face In this paper based on the evolution law of caving coal rock dilatation coefficient the characteristics of the heterogeneous distribution of permeability and voidage in goaf were obtained and the
The airflow field in the coal mine energy tunneling tunnel can be roughly classified into a triangular a vortex an irregular vortex and a stable airflow field Based on the results of multi factor analysis the best ventilation parameters for reducing coal dust pollution during coal energy mining are as follows the distance between the
Coal Mine Safety Regulations 2022 Laigna KYu & Potter É A Turbulent diffusion and dispersion in the transport of gases by mine ventilation jets and flows Sov Min Sci 24 176 180 1988
Keywords Energy saving ·Load management · Mining schedule · Coal mines ·Ventilation network ·Mine main fan 1 Introduction The basic overall necessity of energy in UCM includes restructuring execution and maintenance as well as ade quate planning to realize energy savings in a potentially profitable location [1]
gas is often present in underground coal seams and is a safety hazard to miners because it is explosive in concentrations ranging from 5 to 15 percent in air Gassy underground coal mines employ large scale ventilation systems to move fresh air into the mine These systems dilute methane released into the mine workings as coal is extracted
An Introduction to Underground Mine Environment and Ventilation Web Syllabus; Co ordinated by IIT Madras; Available from 2013 11 26 Lec 1; Modules / Lectures Mine gases INTRODUCTION; GASES IN MINE AIR I; GASES IN MINE AIR II; METHANE I; METHANE II; GAS DRAINAGE; COMPONENTS OF METHANE DRAINAGE SYSTEM;
Safety problem related to methane emission in underground coal mine is tackled by ventilation system In this system emitted methane is mixed with ventilation air and vented into the atmosphere it increases methane load and caused climate change due to global warming India being a signatory of Kyoto Protocol emission of greenhouse gases
The controlling of methane in underground coal mines and the possibility of its recovery is a step towards improving safety and environmental issues Nevertheless we are witnessing serious incidents such as explosions due to the excessive accumulation of methane in mines On the other hand with the current pattern of ventilation significant amounts of this
Moreover 25% 50% of the total energy consumption of underground coal mines is owing to operating ventilation systems Babu et al 2015 Automated ventilation also known as ventilation on demand VoD has been implemented to reduce ventilation energy consumption and maintain work safety
As the energy consumption to operate a ventilation system is 25 to 50% of the total energy requirements of an underground coal mine proper planning redesign implementation and maintenance are necessary to achieve energy saving in this potentially viable area Many researchers all over the world are therefore busy with solution for optimizing the
This study illustrates that the average coal mine ventilation system in the United States is operating with reasonable volumetric efficiency at approximately 38% but has room for improvement as one mine shows that it is possible to reach over 70% efficiency Room and pillar mines are operating with slightly higher efficiencies of
The disaster prevention effect of ventilation dilution on the coal combustion induced methane accumulation in coal mine goafs varies under different coal combustion temperatures According to the competition relationship between air leakage and chimney effect in this study ventilation dilution can weaken and even eliminate the coal combustion
In light of India s current energy crisis it has been determined that the coal mining industry may be used to implement Demand Side Management DSM applications This study explores the possibility of energy savings and reduction in energy costs associated with the installation of Variable Speed Drives VSDs on primary ventilation fans in below ground coal
Ventilation conditions can significantly affect the fire behavior of dead end roadway fires Due to the unique characteristics of coal mine dead end roadways fires in such environments are prone to transition into ventilation controlled fires presenting a significant threat to mine production and personnel safety
The stability of air flows in diagonal airways was investigated in Jia and Liu 2009; Dziurzyński et al 2017 In Jia and Liu 2009 the use of a multiple regression method made it possible to analyze a separate diagonal connection of mine method for determining the sensitivity of airflow directions in ventilation subnetworks to the changes in air
