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Author publications

Adrian Matei

13 linked publication records · Institute for Research and Development; Institutul Naţional de Cercetare-Dezvoltare pentru Securitate Minieră şi Protecţie Antiexplozivă - INSEMEX

Author: Adrian MateiSubject: Exploration and Miningclear all
Showing 1-13 of 13 records
1
25th International Multidisciplinary Scientific GeoConference Proceedings SGEM2025, Science and Technologies in Geology, Exploration and Sustainable Mining
Publication

ENSURING SAFETY FROM THE SALINE PRAID AIR POINT IN THE CASE OF UNOR VOLUNTARY ACTIONS WITH HAZARDOUS GASES

(STEF92 Technology, 2025-08-15, Emeric Chiuzan, Adrian Matei, Corneliu Boantă, Răzvan Drăgoescu, Alexandru Cămărăşescu)

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Ensuring safety from the point of view of the air is determined by the importance of re-ducing the risks of untimely appearance of toxic and explosive gases in the underground workings of the salt mine, while maintaining safety and security sanity at work by monitoring and foreseeing possible failures and voluntary conscious actions under-ground. Still keeping in mind the context of the society from the socio-political-economic point of view and for the development of knowledge in the problem studied the following...

Exploration and Mining2025
25th International Multidisciplinary Scientific GeoConference Proceedings SGEM2025, Science and Technologies in Geology, Exploration and Sustainable Mining
Publication

HOW TO MAKE INDUSTRIAL VENTILATION SYSTEMS AND THEIR EFFICIENCY (case study)

(STEF92 Technology, 2025-08-15, Răzvan Drăgoescu, Adrian Matei, Emeric Chiuzan, Camarasescu Alexandru, Florin Dragomir)

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The role of a ventilation system is to establish or maintain conditions of temperature, humidity, dust content and gaseous products compatible with a certain degree of comfort [2], in the presence of various external inputs, respecting the noise level and air speed compatible with this comfort. In order to obtain prescribed (previously fixed) temperature, pressure and humidity conditions in ventilated premises, the air must first be subjected to a complex treatment process, a process that may include heating, cool...

Exploration and Mining2025
24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Science and Technologies in Geology, Exploration And Mining, Vol 24, Issue 1.1
Publication

SIMULATIONS CARRIED OUT AT THE LEVEL OF THE TARGU OCNA SALT MINE FOR REVERSAL VENTILATION

(STEF92 Technology, 2024-11-15, Doru Cioclea, Adrian Matei, Nicolae Ianc, Răzvan Drăgoescu, Alexandru Camara escu)

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On the territory of Romania, there are large salt deposits grouped on either side of the Carpathian mountains. Made up of over 300 large salt deposits covering an area of about 30,000 km2. The Trotus mine within the Targu Ocna Saltworks Branch was opened and put into operation in 1971, with the objective of dry salt exploitation, using the mining method with small chambers and abandoned square pillars, with a vaulted ceiling. Currently, Salina Trotu? has 14 horizons: 2 at the level of the Pilot mine and 12 at the ...

Exploration and Mining2024
24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Science and Technologies in Geology, Exploration And Mining, Vol 24, Issue 1.1
Publication

THE CONTINUATION OF THE EXTRACTION OF USEFUL MINERAL SUBSTANCES IN THE CURRENT GEOPOLITICAL CONTEXT

(STEF92 Technology, 2024-11-15, Adrian Matei, Doru Cioclea, Razvan Dragoescu, Alexandru Cămărăşescu)

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In the last decade, at the global level, most countries have emphasized the reduction of energy consumption produced with the help of solid fuels, trying to reduce the volume of greenhouse gases and polluting gases by identifying new sources and methods of energy production that have a low effect on the environment and people. Romania is preparing to ensure energy security by producing electricity from renewable sources. Romania's medium- and long-term strategy will be influenced by the European Green Pact, which ...

Exploration and Mining2024
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 23rd International Multidisciplinary Scientific GeoConference Proceedings SGEM2023, Science and Technologies in Geology, Exploration And Mining, Vol 23, Issue 1.1
Publication

THE DYNAMICS OF METHANE EVACUATION FROM CLOSED ENCLOSURES

(STEF92 Technology, 2023-10-01, Doru Cioclea, Cristian Tomescu, Adrian Matei, Razvan Dragoescu, Alexandru Cămărăşescu)

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The increase of the population also involve the increase of the consumption of raw materials. This requires the diversification and development of industrial processes in closed semi-enclosed or open spaces. The carrying out of human activities of an industrial nature involves the accidental use, handling or presence of explosive substances such as methane. The presence of this gas in closed or semi-closed spaces can generate explosion phenomena. The dynamics of methane discharge in closed enclosures, industrial o...

Exploration and Mining2023
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Science and Technologies in Geology, Exploration And Mining
Publication

DISPERSION OF CARBON OXIDE IN CLOSED ENCLOSURES

(STEF92 Technology, 2022-11-15, Doru Cioclea, Emeric Chiuzan, Nicolae Ianc, Adrian Matei, Răzvan Drăgoescu)

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The carrying out of human activities of an industrial nature involves the use, handling or accidental presence of substances of a toxic nature such as carbon oxide. The presence of this gas in closed or semi-closed spaces can seriously affect the human body and when concentrations are high it can lead to death. Knowing how carbon oxide affects the human body and how it disperses into the air is very important for establishing preventive measures. Also, in order to establish the escape routes and the refuge areas, ...

Exploration and Mining2022
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Science and Technologies in Geology, Exploration And Mining
Publication

ROMANIAN COAL BETWEEN DECARBONIZATION PROGRAMS, EXPLOITATION CLOSURE AND ENERGY CRISIS

(STEF92 Technology, 2022-11-15, Cristian Tomescu, Ion Gherghe, Florin Radoi, Adrian Matei, Alexandru Cămărăşescu)

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The energy crisis triggered globally in the last quarter of 2021, forced Romania to go through a winter with liberalized electricity and gas prices, a period unprecedented in terms of consumer prices, accentuated by the result of closing energy targets that coalfired operations as a result of the imposition of EU conditions for the restructuring of the mining and energy sector. The year before, 2020, the COVID-19 pandemic, with restrictions imposed, produced a decrease in electricity demand, a decline in coal-fire...

Exploration and Mining2022
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Science and Technologies in Geology, Exploration And Mining
Publication

VARIATION OF AIR STATUS PARAMETERS IN PRESENCE OF METHANE, IN THE VENTILATION DUCTS INSTALLATIONS

(STEF92 Technology, 2022-11-15, Ion Gherghe, Doru Cioclea, Adrian Matei, Răzvan Drăgoescu, Alexandru Camara escu)

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The main role of ventilation systems and especially air conditioning systems is to create indoor conditions and air quality inside the rooms that are independent of external atmospheric influences. The sizing of ventilation systems and especially of air conditioning systems is done, in most cases, by considering the climatic elements as a basis for calculation. The real limit to air quality insurance it consists in maintaining in the air certain concentrations of harmful substances which do not endanger human heal...

Exploration and Mining2022
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Science and Technologies in Geology, Exploration And Mining
Publication

REVERSE THE VENTILATION AT TROTU? SALT MINE BY USING GALLERY 401 TO ENTER FRESH AIR

(STEF92 Technology, 2021-12-20, Doru Cioclea, Corneliu Boantă, Adrian Matei, Răzvan Drăgoescu, Alexandru Cămărăşescu)

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In Oituz and Targu Ocna, the attestation of salt extraction was established during the Geto-Dacian period. The oldest written testimony dates from 1380. The mining works that serve the Trotus mine within the Tg. Ocna Salt Mine, are located in the Fetele Targului salt massif located near the town of Tg. Ocna, on the left side of the Trotus river. Currently, the Trotu? Salt Mine has 14 horizons: 2 at the Pilot mine and 12 at the Trotu? mine. The specialized 3D CANVENT program was used to establish the optimal distri...

Exploration and Mining2021
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining
Publication

ANALYSIS OF EXPLOSIVE ENVIRONMENTS THAT INTERRACTS WITH INDUSTRIAL VENTILATION SYSTEMS

(STEF92 Technology, 2020-09-20, Adrian Matei, Doru Cioclea, Răzvan Drăgoescu, Emeric Chiuzan, Florin Rădoi)

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Anthropic activities involve the extraction of the transformation and use of natural resources. During the process of extraction at the surface or underground of useful minerals, particles or gases resulting from the natural rocking or release from the rock mass appear in the working environment. The process of transforming useful mineral substances is carried out on the surface in enclosed enclosures, involving the use of complex technological processes. During the course of these technological processes, explosi...

Exploration and Mining2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining
Publication

DEVELOPMENT OF EXPERIMENTAL POSSIBILITIES FOR INDUSTRIAL VENTILATION SYSTEMS

(STEF92 Technology, 2020-09-20, Doru Cioclea, Adrian Matei, Ion Gherghe, Cristian Tomescu, Nicolae Ianc)

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The activity of evaluation and verification of industrial ventilation installations has a strong preventive role in terms of explosion risk mainly due to the fact that of the three determining elements that can lead to an explosion phenomenon, ventilation installations can determine the presence of two elements namely the presence of fuel (gases, vapors, dusts, mists) and the source of initiation (hot surface, flame, sparks of mechanical origin, electrical sparks, static electricity, etc.). The development of expe...

Exploration and Mining2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining
Publication

METHANE AND CARBON DIOXIDE IN PRAID SALT MINE

(STEF92 Technology, 2020-09-20, Emeric Chiuzan, George Artur Găman, Adrian Matei, Ion Gherghe, Razvan Dragoescu)

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The purpose of this paper is to determine the rate of methane (explosive gas ) and of carbon dioxide (axphysants gas ) in the mine workings of Praid salt mine. Currently in Romania there are six salt mines which exploit the salt through underground mine workings: Praid salt mine, Tg. Ocna salt mine, Slanic Prahova salt mine, Ocnele Mari salt mine, Cacica salt mine, and Dej salt mine. Of these six, in three salt mines occurred gas and salt eruptions: Praid salt mine, Slanic Prahova salt mine and Tg. Ocna salt mine....

Exploration and Mining2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining
Publication

SPECIFIC OPERATING CONDITIONS AND TYPE-DIMENSIONS OF INDUSTRIAL VENTILATION SYSTEMS

(STEF92 Technology, 2020-09-20, Ion Gherghe, Doru Cioclea, Florin Rădoi, Adrian Matei, Răzvan Drăgoescu)

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A ventilation system is defined by performing air exchanges between the indoor and outdoor environment with the purpose of creating environmental conditions as close to the required thermal comfort conditions. Before installing a fan, it is necessary to analyze the space in which it is to be used and the method of compensating the exhaust air (mechanically with another fan or naturally with dimensioned grids). The most important factors to consider when choosing a fan are: the volume of the space, the number of sh...

Exploration and Mining2020
Showing 1-13 of 13 records
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