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Natural gas leaks in residential buildings represent a major risk of explosion and fire, endangering lives and property. Current detection systems, predominantly individual and non-centralized, exhibit significant limitations regarding response time, precise leak localization, and effective notification of authorities. This paper proposes the architecture of a centralized system, based on Internet of Things (IoT) technology, for the real-time monitoring of methane (CH4) emissions in medium-sized multi-family resid...

In this paper is presented a Mobile Integrated System for on the Site Testing (MISST) of equipment intended for use in potentially explosive atmospheres, with type of protection pressurization p, resulting from research activities out by the research and testing team involved. The fundamental aspects of the design, implementation and easy use of such an integrated system have been examined, implemented and tested. A mobile integrated test system for Ex p type of protection applied to equipment in Ex construction, ...

The paper presents aspects of analyzing the AI possibilities in evaluating equipment for explosive atmospheres. In the first part of the paper, the context of the use of equipment in potentially explosive atmospheres is presented. The presence of flammable substances in industrial applications leads to additional requirements for technical equipment used in such spaces. Furthermore, machinery used in such spaces must remain in working order even when the risk of explosion is present. In summary, to confirm eligibi...

The need to develop an integrated testing system for explosion-protected construction equipment with the type of protection "p" arose from practical considerations. The use of a mobile, versatile and adaptable system for the field performance of tests specific to this type of protection applied to explosion-protected construction equipment brings several novel advantages, the most important of which are: grouping all the test equipment required for the tests, elimination of measurement errors by performing several...

The paper presents issues regarding impedance spectroscopy analysis for the identification of intrinsically safe circuits. The first part of the paperwork presents the explosion risk. In industrial applications, the presence of flammable substances leads to additional requirements for technical equipment used in such spaces. On the other hand, technical equipment used in such spaces must remain in working order even when the risk of explosion is high. For this purpose, equipment used in such spaces should be asses...

The paper-s purpose is to quantify the measurement consequences in the purge test of equipment protected with the -p- type of protection. In order to achieve this objective, the authors involved a simulation process for a pressurization enclosure. The simulation was conducted, in the first stage, without measurement to obtain a reference after that simulation was conducted for scenarios involving sampling separately for each measurement point. The first part of the paper presented the risks of explosion and pressu...

The installation and maintenance of equipment intended for use in potentially explosive environments requires specific knowledge and qualifications for the personnel who commissions and subsequently maintain such equipment. When installing and maintaining electrical equipment, situations may arise which may in turn lead to an unacceptable level of risk with regarding to the activation of ignition sources of potentially explosive atmospheres in their immediate vicinity, due to the failure to comply the principles o...

The paper presents issues regarding uncertainty involved in the test process to ignition of small components for intrinsically safe equipment. In the first part of the paper, the classification of explosion-protected equipment is presented. In power generation and also in other industrial areas, the incidence of flammable substances is a common factor. As a consequence of this, the risk of explosion may arise. On the other hand, installations located in areas endangered by the presence of flammable substances must...

In the paperwork are presented aspects regarding uncertainty involved in the process of spark ignition assessment for intrinsically safe equipment. In the first part of the paper was presented the explosion risk. In the field of power generation and also, in a lot of other fields of industrial activities, the occurrence of flammable substances is a common fact. As a consequence, an explosion risk can occur. On the other hand, the installations placed in areas endangered by presence of flammable substances should b...

The article considers the dynamics of flammable substances concentrations in ventilated rooms. Ventilated rooms are used for equipment and installations where the risk of explosion is caused by the presence of flammable substances such as gases, vapours and mists. The first part presents the explosion risk associated with presence of flammable substances and the classification of atmospheres in which explosion risk is noticeable. Thus, for areas where the explosive atmosphere can be delimited inside a compartment ...

In the paperwork are presented new aspects regarding test results of galvanic cells used in the apparatus intended for use in explosive atmospheres. In the first part of the paper was presented the explosion risk. The explosion risk involved by the presence of technical equipment in areas endangered by the presence of flammable substances is manifested through two sources of risk. The spark ignition is due to electrical equipment, electrostatic discharges and mechanical impact. The mixtures of air with flammable s...

In the paperwork is described a system for testing of pressurized type of protection for enclosures. In the first part of the paper was presented the explosion risk and pressurization of enclosures as type of protection. Also, in this part were underlined some requirements and advantages for this type of protection. In the second part was proposed and presented the theoretical model for measuring the protective gas concentration and also was mentioned the influence of air moisture. Consequently, were presented the...

The paperwork is based on the data emerged from a conducted research related to a moisture influence on ignition sensitivity of air-methane gas mixture. For the purpose of this demarche the Bayesian statistics was used to fit a proposed mathematical model. In the first part of the paper it was presented the spark test apparatus used for the experimentation and the results of the experimental data obtained during the tests with moisturized air-methane mixtures. In the second part it was proposed and presented the t...

This paperwork is based on the data emerged from a conducted research related to a moisture influence on ignition sensitivity of air-methane gas mixture. For the purpose of this demarche it were used method of signal processing approach as it is data filtering and mathematical transform of the experimental data. In the first part of the paper, it was presented the spark test apparatus used for the experimentation and the results of the experimental data obtained during the tests with mixture air-methane and moistu...