Petrosani, Romania

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Agency: European Commission | Branch: FP7 | Program: CSA-CA | Phase: SiS-2008- | Award Amount: 1.12M | Year: 2009

Science cities are becoming increasingly important across Europe. Their central strategic aim appears to be boosting the knowledge economy nationally and to support the goals defined in the Lisbon strategy. In order to do this, it is important that the triple helix of universities and research organisations, business and the public sector work together to ensure that research and development (R&D) and innovation is world-class. The premise of science cities is that the best place for this interaction to happen spatially is within cities; where all actors are present. However, to significantly improve quality of life in urban areas, it is also necessary to address the extra dimension of public engagement in science in the more recently termed quadruple helix. An engaged public can make informed choices about the way they live; they can participate in scientific debate; they are able to look critically at mediated information provision and they can contribute more effectively to the knowledge economy. The Science in Society work strand of FP7 will allow the CASC project to form a wide geographical network able to explore best practice and exchange different ideas on ways of working to improve the ways in which the public might be engaged in science. A central aim of the project will be dissemination of this best practice through new media and open events; it will culminate with development of policy recommendations for the European Commission, but also for national, regional and sub-regional levels of governance.

Cioca I.-L.,Lucian Blaga University | Moraru R.I.,University of Petrosani
Archives of Mining Sciences | Year: 2012

In order to meet statutory requirements concerning the workers health and safety, it is necessary for mine managers within Valea Jiului coal basin in Romania to address the potential for underground fires and explosions and their impact on the workforce and the mine ventilation systems. Highlighting the need for a unified and systematic approach of the specific risks, the authors are developing a general framework for fire/explosion risk assessment in gassy mines, based on the quantification of the likelihood of occurrence and gravity of the consequences of such undesired events and employing Root-Cause analysis method. It is emphasized that even a small fire should be regarded as being a major hazard from the point of view of explosion initiation, should a combustible atmosphere arise. The developed methodology, for the assessment of underground fire and explosion risks, is based on the known underground explosion hazards, fire engineering principles and fire test criteria for potentially combustible materials employed in mines.

Patrascoiu N.,University of Petrosani
International Journal of Circuits, Systems and Signal Processing | Year: 2011

This paper presents a virtual instrument built in LabVIEW used like a software solution to implement a displacement and angular speed measurement for a mobile that is moving in a circular direction. The same virtual instrument can be used also for measuring displacement and speed on the linear direction, by converting the linear movement into a circular movement or by using a linear incremental encoder. For this, first is determined the function through which is possible to detect the direction of movement and then the algorithm through which are makes the measurements and these are implemented through the graphical programming language used in LabVIEW.

Toderas M.,University of Petrosani
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2014

Selecting the rock massif - support system interaction model involves establishing the model that corresponds to the studied problem, which requires knowledge of the real deformation behaviour of the massive by assessing all involved geomechanical characteristics, but also all the technical, mining and organizational factors, which determines the pressure manifestation’s regime and ensure the stability throughout the duration of activity of the underground works. This paper presents some results obtained during three years based on the measurements of the manner of support’s deformation in galleries located at the levels +50, 0, -50, -100 and -150, considering that in this period the gallery located at the level -150 was in drift. The results have allowed: processing of the dependence of the minimum specific bearing capacity required of the metallic arched support, according to the values of the stability coefficient based on mathematical statistics; assessing the dependence of the pressure on the support on time; it was also determined the dependence of rock displacements in respect to time for the calculated stability coefficients. © SGEM2014.

Toderas M.,University of Petrosani
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2014

Solving the problems of geo-mechanics that contribute to achieving the stability - reliability of mine workings involves the knowledge of the rheological behavior of rocks. We emphasize some of these issues, namely: clearing up the natural stress state; characterizing the deformation behavior of the rock massif; the secondary stress - strain of rocks around the main horizontal mine workings; characterization of geo-mining stability conditions where the galleries will be executed; studying the manifestation manner of the pressure and its calculation in the context of rock massif - support system – time mechanism of interaction; rheological characterization of the consolidated rocks, etc. This paper presents the manner of approaching the rock – support interaction problem for the sedimentary rocks from the Jiu Valley taking into account their rheological classification. Knowing the rheological behavior has implications in solving the problem referring to the mining pressure and its calculation in the context of rock massif – support system – time mechanism of interaction. © SGEM2014.

Dobrei G.L.,University of Petrosani
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2014

In order to line up with the European requirements regarding environmental and energy efficiency as a result of Romania's accession to the European Union, it is required the technological rehabilitation of coal plants, namely the fulfilment of installations for flue gas desulphurization and the review of the existing disposal, transport and storage systems of products resulting from the combustion of coal in power units' boilers. For further proper operation, Electrocentrale Deva (Mintia Thermal Power Plant) is required to make investments to reduce the environmental impact of ash and slag deposits, this being possible through the implementation of new technologies, such as dense slurry technology. This paper shows the concerns of Electrocentrale Deva on environmental impact in terms of air, water and soil, by implementing a new technology for disposal and transport of waste coming from the combustion of fossil fuels. Changing this technology will provide the reduction of "excess water" volume, seeking to reduce the content of the hydro-mixture: 1 part slag - ash - 10 parts water, used in the old technology (1:10) at a ratio of 1:1.1 using the dense slurry technology. By implementing this technology and building a new storage, starting with 01.01.2016, it shall be observed the current European legislation (Directive 1999/31/EC on waste discharge and storage) which will make possible the continuous operation of Mintia thermal power plant. © SGEM2014.

Mihaela T.,University of Petrosani
10th International Multidisciplinary Scientific Geoconference and EXPO - Modern Management of Mine Producing, Geology and Environmental Protection, SGEM 2010 | Year: 2010

The case of Rosia Montana Mining Museum underlines the importance of promoting tourism in mining on a national basis, to ensure where possible those new employment opportunities are created in tourism in mining and that municipalities are aware of the possibilities for tourism in mining and that these are integrated into their tourism promotional activities. This paper emphasizes that our country's tourism attractiveness lay in its diversity, including tourism in mining. It is important to perceive the opportunities for tourism related to mining and identify any possible linkages between the country's major economic sector and the potential to use the mining industry as part of the expansion plans for the tourist sector. That's the case of Rosia Montana Mining Museum.

Brinzan D.,University of Petrosani
Environmental Engineering and Management Journal | Year: 2012

The research conducted within this paperwork focuses on the determination of the operational reliability of several parts and subassemblies of the longwall mining shearers which operate ion coal mines. From the analysis of the obtained data we established the lifetime of the parts, the needed spare parts, the period of time between scheduled repairs in order to avoid the mechanical faults of the longwall shearers, which generate additional costs and decreased income. The least reliable element of the longwall shearers has been established to be the guiding-driving mechanism, and the most reliable one being the cutting-body. The developed paperwork follows the line which is currently granted for the studies and researches carried out in the field of operational reliability of products, aiming to enrich the database, mainly the one specific for the mechanical field.

Lazar M.,University of Petrosani
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

The Jiu Rosia open pit exploits a lignite deposit, consisting of several layers separated by sterile intercalations. These sterile intercalations consist in most cases of aquifers rock, such as sand, gravel or sand and clay mixtures. Ensuring the security of mining works, machinery and personnel involves the performing of the dewatering work of the aquifer formations. Annual resulting from dewatering works significant volumes of groundwater, and costs of dewatering works are considerable. Currently, the groundwater resulting from the dewatering works is discharged into the river Jiu because the mining company pays penalties top Romanian Waters Company. The paper analyzes the main characteristics of dewatering works (water volume, the radius of influence of dewatering works, effects of environmental components) and also identify the water uses in the area which can be supplied with water from dewatering works. Given the above, the paper addresses the issue of water needed in the adjacent areas of the open pit and examines a range of solutions for its use. As possible uses considered water supply, irrigation or water filling gaps remaining of the closed open pits. © SGEM2015. All rights reserved.

Toderas M.,University of Petrosani
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

For the salt massive of Praid mine, the tectonic phenomena has a determinative impact on the natural stress state; in this order, after the formation of the diapir in the central part of this, the normal stress is equal to the weight of the salt column and rock column too, until the surface (σz = γaH), and thus the stress state is very active. In the diapir flanks the passive natural stress state is developed and between these two limit states there are the intermediate stress states. For heterogeneous salt formation encountered the Praid mine area, the natural stress state evaluation was made taking into account the presence in salt massive of two areas: the first area where the salt is in a stress – deformation limit state and the second area where the natural stress - deformation state also has a reserve of strength. Therefore, identify those areas is particularly important, taking into account the strength anisotropy and the rheological behavior too. Based on laboratory tests we was performed to characterize the natural stress state of salt diapir from Praid mine, to elucidate the depth diapir mentioned that move from elastic behavior to inelastic one or from stable behavior to unstable one. For this purpose, were determined the correlations between the natural stress state components for these areas. © SGEM2015.

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