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The presence of flammable and/or combustible substances in various industrial production processes generates in most cases potentially explosive atmospheres, which transforms a regular work environment into an explosion risk area, directly influencing the way in which equipment intended to be used in these areas is designed, installed and maintained. In areas where potentially explosive atmospheres may form due to the presence of flammable and/or combustible substances, technical equipment must be used whose casin...

This study investigates experimentally the influence of dust thermal conductivity on the maximum surface temperature of Ex equipment operating under dust layer conditions at a fixed dissipated power of 3 W. Experiments were conducted using a purpose-built resistive test sample, designed and manufactured at INCD INSEMEX, tested with two dust materials representing boundary conditions of thermal behaviour: vermiculite, selected as a worst-case insulating material, and Portland cement dust, selected for its industria...

Technical equipment intended for use in potentially explosive atmospheres generated by the presence of combustible dusts is provided with enclosures that must be designed in such a way as to ensure protection against the ingress of solid bodies and/or dust, as well as water, a concept materialized by the notion of normal protection degree. or increase protection (international code IP). The expression of the normal degree of protection of the casing of a technical equipment is done through the group of letters IP ...

The continuous development of human society from a technical-economic point of view is closely related to the increase in energy consumption. However, this implies the rapid depletion of existing fossil fuels and an accelerated increase in global pollution. At the moment, to counteract these impediments, one of the most important sources that can be used for the purpose of energy production, without having a negative impact on the environment, is hydrogen. Due to the fact that, when mixed with air, hydrogen can ge...