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Упит dcterms_subject_txt:mine ventilation

55 items

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    hybrid systems, mine ventilation, expert systems
    ... aerodynamic definition of mine ventilation networks - ResNet, a package for ventilation simulation in complex mine ventilation networks - SimVent and a diagnostic expert system for ventilation system analysis - VENTEX. Besides the architecture of a hybrid system for mine ventilation planing and analysis ...
    ... Измењено: 2023-10-14 03:23:37 INVENTS: A Hybrid Mine Ventilation Planning and Design System Lilić Nikola, Stanković Ranka, Obradović Ivan Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] INVENTS: A Hybrid Mine Ventilation Planning and Design System | Lilić Nikola ...
    ... system INVENTS for planing and analysis of mine ventilation is composed of three program modules: a software package for aerodynamic definition of mine ventilation networks - ResNet, a software package for ventilation simulation in complex mine ventilation networks - SimVent and a diagnostic expert ...

  • Ventex: an expert system for mine ventilation systems analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    roblems relating to mine ventilation systems analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system stability, air current losses, climate conditions, gas state, fire risk and dangerous dust pollution risk. The solution to these problems relies, to a great extent, on numerical methods. With the development of computer technology these methods were incorporated as numerical routes in software packages, such as the mine ...
    expert system, mine ventilation

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    ... aerodynamic definition of mine ventilation networks - ResNet, a package for ventilation simulation in complex mine ventilation networks - SimVent and a diagnostic expert system for ventilation system analysis - VENTEX. Besides the architecture of a hybrid system for mine ventilation planing and analysis ...
    ... system INVENTS for planing and analysis of mine ventilation is composed of three program modules: a software package for aerodynamic definition of mine ventilation networks - ResNet, a software package for ventilation simulation in complex mine ventilation networks - SimVent and a diagnostic expert ...
    ... offered by computer hardware and software that are at the disposition of mine engineers. Software packages for mine ventilation simulation obtained a key role in the process of mine ventilation planing and design. Ventilation design is just one element or phase of the novel design approach. The component ...

  • A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice

    Nikola Lilić, Ivan Obradović, Ranka Stanković (2002)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...
    ... A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice Nikola Lilić, Ivan Obradović, Ranka Stanković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice ...
    ... the ventilation system state of the “Soko” mine when air loss is considered. When all characteristics of the ventilation system were estimated, a new set of rules was activated in order to establish the overall ventilation state of the “Soko” mine. VENTEX estimated the global mine ventilation state ...
    ... approach to the solution of the mine ventilation planning and analysis problem using a hybrid system composed of three entities: a package for aerodynamic definition of mine ventilation networks — ResNet, a package for ventilation simulation in complex mine ventilation networks — SimVent and a diagnostic ...

  • VENTEX: An Expert System for Mine Ventilation Systems Analysis

    Ranka Stanković, Nikola Lilić, Ivan Obradović (1996)
    Analiza sistema za ventilaciju je komleksan proces, koji bazira na proračunu brojnih parametara, koji se odnose na: stanje mreže, provetrenost, stabilnost sistema, gubitke vazduha, klimatske uslove, gasno stanje, ugroženost od požara i opasne prašine. Navedeni problemi se uspešno rešavaju paketom SimVent, ali potpuno razumevanje i korišćenje dobijenih rezultata zahteva angažovanje iskusnog specijaliste iz oblasti ventilacije. Rešenje je nađeno u kreiranju ekspertnog sistema VENTEX, čija je baza znanja formalizacija ekspertskog znanja iz oblasti ventilacije rudnika. U radu je prikazana metodologija ...
    ekspertni sistem, ventilacija
    ... 2023-10-14 04:20:47 VENTEX: An Expert System for Mine Ventilation Systems Analysis Ranka Stanković, Nikola Lilić, Ivan Obradović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] VENTEX: An Expert System for Mine Ventilation Systems Analysis | Ranka Stanković, Nikola ...
    ... categories: the ventilation network, aeration of the mine, stability of the ventilation system, air loss, climate conditions, mine gas state, fire risk and harmful dust risk. Once the parameter values are obtained the estimation process for the general ventilation state of the mine may begin. During ...
    ... section. 2. A FORMALIZATION OF VENTILATION STATE EVALUATION PROBLEM-SOLVING The analysis and evaluation of the mine ventilation state in VENTEX is based on numerical algorithms provided by SimVent, on one hand, and heuristics formulated by mine ventilation experts, on the other. Thus, a ...

  • Mine ventilation system planning using genetic algorithms

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...
    coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methods

  • Coupling of artificial intelligence methods in the development of hybrid intelligent systems

    Ranka Stanković, Ivan Obradović, Nikola Lilić (2001)
    In this paper we present an approach which couples various artificial intelligence (AI) methods in the solution of complex problems that cannot adequately be solved by a single AI method. We argue that the resulting, hybrid intelligent systems (HIS) can be successfully implemented with the use of available AI software libraries. Different coupling methods are analyzed and a classification of hybrid systems based on the chosen method is given. Two case studies of hybrid systems used in mining engineering ...
    hibridni inteligentni sistemi, spregnuti sistemi, metode veštačke inteligencije, rudarske primene veštačke inteligencije
    ... Structure of the hybrid system for mine ventilation planing and analysis INVENTS consists of three program modules: a software package for aerodynamic definition of mine ventilation networks - ResNet, a software package for ventilation simulation in complex mine ventilation networks - SimVent and a diagnostic ...
    ... any further analysis of concrete ventilation systems. SimVent is a software package that enables mine ventilation simulation in underground exploitation of ore deposits. The global structure of the mathematical model for ventilation simulation in mine ventilation networks, transformed into the ...
    ... distribution in the ventilation system; 2) The module for the analysis of the heat pattern in the mine; 3) The module for the analysis of temperature and heat depression distribution in the case of a fire in the mine; 4) The module for the analysis of gas distribution in the ventilation system. In ...

  • Ventilation Planning and Design of the Omerler B Mine

    Lilić Nikola, Čokorilo Vojin, Cvjetić Aleksandar, Milisavljević Vladimir (2012)

  • Ventilation Planning and Design of the Derin Sahalar Mine

    Lilić Nikola, Čokorilo Vojin, Cvjetić Aleksandar, Milisavljević Vladimir (2013)

  • Case Study of Ventilation Method Development for Bar-Boljare Highway Tunnel Construction in Montenegro

    Cvjetić Aleksandar, Lilić Nikola, Čokorilo Vojin, Milisavljević Vladimir (2017)

  • Hibridni sistem za planiranje i analizu ventilacije rudnika

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilacija rudnika, informacioni sistemi
    ... MUTMANSKY J.M., "Aplication of CPM procedures in mine ventilation", 1st mine ventilation symposium, pp.159-168, SME-AIME (1982). 98. WANG Y.J., HARTMAN H.L., MUTMANSKY J.M., "Recent developments in mine ventilation network theory", 2nd US Mine Ventilation Symposium /Reno NV/, pp. 667-675, (1985). 99 ...
    ... Australian Coal Journal, No 42, pp 19-27, (1993). 5. BANDOPADHYAY S., RAMANI R., "Convection-diffusion equations in mine ventilation planing", Third International Mine Ventilation Congres, Harrogate, 397-404., (1984). 6. BIENIAWSKI Z. T., Design methodology in rock engineering, Theory, education ...
    ... Solving Pit Ventilation in the “Soko” Coal Mine CHAPTER 4 MATHEMATICAL DEFINITION OF COMPLEX VENTILATION NETWORKS Characteristics of Mine Ventilation Networks……………………………………………99 Main Characteristics of Network Topography Aerodynamic Resistance of Ventilation Network Branches Defining Mine Ventilation ...

  • Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek (2024)
    multi-criteria decision-making, definition of criteria, underground exploitation

  • Faktori uticaja na izbor optimalnog sistema odbrane od podzemnih voda kod površinskih kopova

    Dragoljub Bajić, Dušan Polomčić (2015)
    hydrodynamic model, multi-criteria optimization, openpit mine

  • Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential

    Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić (2021)
    The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...
    геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти
    ... gain. Natural ventilation and cooling: Glazed surfaces are designed to maximize the share of operable elements with cross-ventilation that are provided for all spaces. The basic layout, as previously described in this chapter, provides very good preconditions for natural ventilation and effective a ...
    ... of lower demand. High seasonal sensitivity implies that the facility may operate only during the summer, so providing thermal comfort and natural ventilation on warmer days while staying in direct contact with the environment was dominant. Climate in Vojvodina is classified as warm temperate, predominantly ...
    ... Case Enhanced Base Case Enhanced Base Case Enhanced Heat losses (kWh) Transmission 51,597.94 35,625.64 75,290.03 52,198.15 100,799.42 69,786.58 Ventilation 15,675.93 15,675.93 23,436.22 23,436.22 30,824.67 30,824.67 Total losses (kWh) 67,273.87 51,301.57 98,726.25 75,634.37 131,624.09 100,611.25 Heat ...

  • Rudničke vode olovo-cinkovih ležišta u rudnom polju „Blagodat“ u jugoistočnoj Srbiji

    Nebojša Atanacković, Veselin Dragišić, Vladimir Živanović, Ivana Cvejić, Saša Stojadinović, Ivana Jocić (2022)
    Rudno polje Blagodat sa više ležišta i pojava olovo-cinkovih ruda nalazi se u krajnjem jugoistočnom delu Srbije, blizu granica sa Bugarskom i Severnom Makedonijom. Eksploatacija ovog resursa vrši se podzemno u okviru rudnika Grot, ranije Blagodat. Prilivi podzemnih (rudničkih) voda u jamske radove rudnika Grot su visoki i iznose oko 130 l/s (septembar 2019), što ga trenutno svrstava u najovodnjenije rudnike sa podzemnom eksploatacijom u Srbiji. Nezavisno od njih, iz obližnjeg potkopa P-1 u ležištu Kula, ističe još 25 ...
    rudničke vode, ovodnjenost rudnika, prilivi rudničkih voda, kvalitet rudničkih voda

  • Sepiolite – a by-product of exploitation as a potential raw material in Serbian industry

    Radmila Gaćina, Katarina Urošević, Jelena Zakonović (2019)
    This paper gives a brief overview of the sepiolite deposits, the basic properties, and the possibilities of using this mineral. Particular attention is paid to sepiolites from domestic production, especially the use of sepiolites suitable for the development of small businesses and technologies, with a focus on environmental protection. Aim of this paper is to point out importance of this mineral and to draw attention to the use of domestic raw materials. With appropriate mechanical and chemical pretreatments, sepiolite is ...
    sepiolite, by-product, small-scale mine, marginal costs,

  • The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers

    Dragan Ignjatović, Predrag Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović (2019)
    One of the most important prerequisites for the successful operation of the open-cast lignite mine is to carry out all the auxiliary works timely with the necessary quality. The most important and most commonly used auxiliary machines are bulldozers. Engaging time of bulldozers use is in direct relation with the coefficients of the time and capacity utilization of the continuous system for the excavation of coal and tailings, which indicates their importance. More than 100 bulldozers have been hired ...
    open-cast coal mine, auxiliary works, bulldozers, optimization, availability
    ... of Serbia. |Тће је cycle of these machihes is 5–10 years, 50 И is hecessary 10 replace тће complete equipmeht several times тт the lifetime ој the mine. The purchasing and the operational costs of auxiliary machihnes are high, and тп the 10141 cost of coal excavating mehtioned cost are fFom about 1 ...
    ... туре of bulldozer. 4lso, this paper defines the optimal bulldozer replacement period within the life cycle of that machihe. Keywords: Open-cast coal mine, auxiliary works, bulldozers, optimization, availabilifty. 1. INTRODUCTION Dozers are most common auxiliary machines at open-cast coal mines, both ...
    ... OPERATIONAL COSTS + COSTS OF OPERATOR Following conclusions can be made on average costs for strong and very strong dozers operating on open- cast lignite mine: e Average costs for strong dozers are 63.75 €/mh; e Average costs for very strong dozers are 95.12 €/mh. 288 Limiting costs based оп these уајџез ...

  • Hydrochemical indicators of groundwater flow in the area of “Čukaru Peki” Cu-Au underground mine in eastern Serbia

    Nebojša Atanacković, Vladimir Živanović, Jana Štrbački, Veselin Dragišić, Ivana Cvejić (2022)
    The physical and chemical properties of groundwater, together with the groundwater levels regime and rock hydraulic properties, are often used to understand and conceptualize the hydrogeological system. Prediction of the influence of mining works on groundwater, and vice versa, is a challenge due to significantly altered groundwater flow patterns in the raw materials exploitation areas in relation to natural conditions. Therefore, multiple parameters are assessed and monitored before and during exploitation to properly characterize and quantify the system for ...
    mine water, hydrogeology, multivariant statistics, groundwater inflow, water quality

  • History of the development of the hydrodynamic model of the open pit mine “Drmno”, Serbia

    Dušan Polomčić, Jelena Ratković, Vesan Ristić Vakanjac (2023)
    With the creation of a hydrodynamic model, the need for it usually ceases until some next moment when the model needs to be updated and used for the set task for the necessary project documentation or dedicated studies. It is relatively rare that almost every year the model is improved and used for forecast calculations. The paper presents the basic characteristics and development of the hydrodynamic model of the open pit mine “Drmno” for 25 years. This open pit ...
    hydrodynamic model, open pit mine, model recalibration, drainage system

  • Development of an integrated model for open-pit-mine discontinuous haulage system optimization

    Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)
    equipment selection, mine mechanization, expert judgment, linguistic variables, MCDM, FAHP