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Eingeladener Vortrag
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Ammonia Safety
(2023)
In order to share the latest technological information in the gas field and develop the gas industry, the Korean Gas Safety Corporation host an international gas safety seminar every year by inviting domestic and foreign experts. In year 2023, the seminar focussed on the latest trends in ammonia safety management and utilization technology. BAM was asked to give a presentation on ammonia safety and its flammability in specific. Based on the international flammability classification the required explosion protection measures were presented,which are defined by the European ATEX rules. As final part of the presentation the German strategy on transformation of existing infrastructure, here especially the transformation of landbased LNG terminals, was shown as well.
Ammonia Safety
(2023)
Ammonia is an energy source that has been produced and used on a large scale for many decades, primarily as a fertilizer or feedstock in nitrogen chemistry. The CAMPFIRE alliance, founded as part of the "WIR!- Wandel durch Innovation in der Region" funding program of the German Federal Ministry of Education and Research (BMBF), aims to research and develop new energy conversion and storage technologies for the future energy system based on green ammonia. The safe handling of ammonia is an important issue along the entire value chain. Therefore, the alliance has organized a webinar to discuss the topic of ammonia safety and in particular its flammability. BAM's contribution presented the topic of flammability in detail, placed the classification of ammonia in an international, European and national context and presented the basic principles of explosion protection that result from this and must be observed during use and application.
Die BAM stellt sich mit verschiedenen Themen auf der EUROPEAN CONFERENCE 2019 ON PLANT & PROCESS SAFETY vor. Die Themen sind eine Auswahl von Forschungs- und Dienstleistungsarbeiten, die zur Prozesssicherheit geleistet werden und beinhalten Druckentlastungsvorgänge, Sicherheit von Biogasanlagen, Pipelinesicherheit und sicherer Einsatz von Sauerstoff.
In connection with the use of chemically unstable gases (especially acetylene and ethylene oxide) accidents keep on happening - amongst them also quite serious ones. These gases are known to be chemically unstable. A chemically unstable sas is a flammable gas that is able to react exolosivelv even in the absence of air or oxveen. The investigation of accidents showed that the Chemical instability of flammable gases played an important role in the severity of accidents. Therefore, this hazardous property was included in the global harmonizatiön of the Classification of Chemicals. The Classification of chemically unstable flammable gases and mixtures is an amendment to Chapter 2.2 “Flammable gases” of the UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS), because most chemically unstable gases are flammable as well. The proposal to add them to the GHS originated from the experts of an informal working group of the UN Sub-Committee of Expert on the GHS (UNSCEGHS) headed by BAM, Germany. The UNSCEGHS has decided to include it in the Fourth Revised Edition of the GHS. The respective method for determining whether a gas is chemically unstable or not, is included in the UN Manual of Tests and Criteria. This paper presents some experimental investigations of these gases, the test methods, examples of new classifications and results from CHEMSAFE
Germany has concluded energy partnerships with various countries, including Japan. During the 3rd meeting of the Hydrogen Working Group, the strategic approach of both countries on developments of hydrogen guidelines, certification and safety was presented and discussed. BAM gave a presentation on important topics in the field of safety research and on safety-related issues along the value chain. Furthermore, the work program and selected projects of the competence center H2Safety@BAM were presented.
The Gases Advisory Group is organized regularly by the Prevention Division of the German Employer's Liability Insurance Association for Raw Materials and the Chemical Industry. The event serves as an exchange between science and industry on current safety-related issues concerning oxygen and hydrogen. In this context, BAM presented an overview of its various activities of the competence center H2Safety@BAM, which are reflected in the entire hydrogen value chain. In addition, the plans for the expansion of the test infrastructure at BAM's Technical Safety Test Site were presented. The results of the DELFIN project on the safety of pressurized gas storage tanks, the release tests of liquid hydrogen as well as the underfiring of corresponding cryogenic storage tanks and the plans for the ModuH2Pipe@BAM project were also presented. The presentation concluded with the current recommendations of the Hydrogen Research Network.
In this paper a mathematical model for predicting the heating-up of an acetylene cylinder involved in a fire is presented. In the simulations polynomial functions were used to describe the temperature dependency of the thermal properties of the cylinder interior, which is a complex system composed by a solid porous material, a solvent and acetylene dissolved in it. Model equations covered heat conduction in the cylinder interior and at its walls, while the fire surrounding the cylinder was simulated by solving the coupled heat transfer and the momentum equation. Results of the calculations and the effects of some model parameters are discussed.