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Ryzyko wystąpienia poważnej awarii reaktora syntezy mocznika

Samociuk W., Wyciszkiewicz A., Gołacki K., Otto T.

Przemysł Chemiczny

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2017

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T. 96, nr 8

1763--1766

PL

Podczas produkcji mocznika występują zagrożenia zdrowia i życia pracowników, majątku przedsiębiorstwa i środowiska naturalnego. Przedstawiono zagrożenia bezpieczeństwa oraz skutki awarii reaktora syntezy mocznika wg technologii firmy Toyo-Koatsu dla wybranego scenariusza awaryjnego. Dokonano analizy zagrożeń i zdolności operacyjnych HAZOP (hazard and operability study) i wyznaczono punkty krytyczne najistotniejsze z punktu widzenia bezpieczeństwa. Zaproponowano funkcję bezpieczeństwa dla przypadku zablokowania zaworu na wypływie reaktora, której wykorzystanie pozwoli na zmniejszenie ryzyka wystąpienia awarii.

EN

Reactor for the Toyo-Koatsu synthesis of urea was evaluated by using the hazard operability anal. to possible accident scenarios. A new safety function for the case of blocked valve at the outlet of the reactor was proposed.

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Analysis of tank safety with propane-butane on LPG distribution station

Krzysiak Z., Samociuk W., Bartnik G., Plizga K., Dziki D., Kaliniewicz Z., Nieoczym A., Wyciszkiewicz A., Otto T.

Polish Journal of Chemical Technology

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2017

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Vol. 19, nr 4

99--102

EN

An analysis of the risk of failure in the safety valve – tank with propane-butane (LPG) system has been conducted. An uncontrolled outflow of liquid LPG, caused by a failure of the above mentioned system has been considered as a threat. The main research goal of the study is the hazardous analysis of propane-butane gas outflow for the safety valve – LPG tank system. The additional goal is the development of an useful method to fast identify the hazard of a mismatched safety valve. The results of the research analysis have confirmed that safety valves are basic protection of the installation (tank) against failures that can lead to loss of life, material damage and further undesired costs of their unreliability. That is why a new, professional computer program has been created that allows for the selection of safety valves or for the verification of a safety valve selection in installations where any technical or technological changes have been made.

3

Robot manipulator usage for measurement in production areas

Kuts V., Tahemaa T., Otto T., Sarkans M., Lend H.

Journal of Machine Engineering

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2016

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Vol. 16, No. 1

57--67

EN

Measuring and inspection works in production process using laser scanners attached to the robot manipulators are more and more used in different ways and purposes. The aim of this article is to study and analyze the usage of 3D measuring devices attached to the robot manipulator according to determine the range and the purpose of such industrial measurements. Different scanning devices are applied in production areas with varying purposes, such as 3D scanning of the new product, in order to inspect and find defects. Attached to the robot manipulator, scanners or laser measuring devices are able to scan every object in range of a robot, which makes the measuring process very flexible. Several tests with 3D scanners were performed to find out the optimal conditions and configuration for production purpose. As a result, knowledge base suitable for different production areas was developed. Thus, it would be feasible to have a common database to be implemented in different production areas.

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Increasing of rapid prototyping performance by 3D printing technologies

Matsi B., Otto T., Roosimölder L.

Journal of Machine Engineering

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2009

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Vol. 9, No. 1

121--129

EN

Rapid prototyping (RP) is being recognised as a significant technology for future product development. One of the most effective RP technologies is 3D printing. A three dimensional object is created by layering and connecting successive cross sections of material. Therefore this new RP methodology is generally faster, more affordable and easier to use than any other additive fabrication technologies. This paper analyses performance of RP methods and compares these based on use-cases. Prototypes of casing type details have been created using different RP technologies. Productivity of product development process and 3D printing has been investigated. A problem in differences between physical prototypes compared to existing computer model (digital prototype) can be diminished by using comparative pre-testing. Case studies of increasing innovation capacity in development of casing type details have been analysed. In addition, suggestions for increasing innovation capacity and performance of rapid manufacturing have been made.