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1
Content available Energy storage using compressed air
Kaczmarczyk Krzysztof, Dobrzaniecki Piotr
Mining Machines
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2023
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vol. 41, iss. 1
25--36
EN
The climate change is probably the greatest challenge humanity is facing today. In order to protect future generations from the catastrophic effects of the process, actions to achieve climate neutrality are being taken worldwide. These actions include development of renewable energy sources. Renewable energy depends on weather conditions, which results in a mismatch between supply and demand for energy. Use of energy storage is the technical solution to minimize this issue. The paper presents topics related to the potential storing of surplus electricity produced from renewable energy sources (RES) in the form of compressed air. The article also shows worldwide solutions for energy storage using compressed air. As part of the work, three variants of a warehouse consisting of standardly available pneumatic units were considered. The conducted analyzes made it possible to determine the energy efficiency of such a system. It can be observed that greater efficiency is achieved by using large flow compressors and the operation of the pneumatic motor at a higher supply pressure. In addition, it can also be said that the greatest losses are associated with the operation of the compressor, which generates large amounts of heat during operation. Increasing the efficiency of the energy storage system can be achieved by utilizing the heat generated in the compression process.
2
Content available Design with use of 3D printing technology
Rozmus Magdalena, Dobrzaniecki Piotr, Siegmund Michał, Herrero Juan Alfonso Gómez
Management Systems in Production Engineering
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2020
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nr 4 (28)
283--291
EN
Dynamic development of 3D printing technology contributes to its wide applicability. FDM (Fused Deposition Method) is the most known and popular 3D printing method due to its availability and affordability. It is also usable in design of technical objects – to verify design concepts with use of 3D printed prototypes. The prototypes are produced at lower cost and shorter time comparing to other manufacturing methods and might be used for a number of purposes depending on designed object’s features they reflect. In the article, usability of 3D printing method FDM for designing of technical objects is verified based on sample functional prototypes. Methodology applied to develop these prototypes and their stand tests are covered. General conclusion is that 3D printed prototypes manufactured with FDM method proved to be useful for verifying new concepts within design processes carried out in KOMAG.
3
Content available Urządzenia małej mechanizacji - przewijarka do kabli i lin KUP-01
Dobrzaniecki Piotr
Maszyny Górnicze
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2019
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R. 37, nr 4
15--23
PL
W artykule przedstawiono opis kompaktowego urządzenia do wspomagania procesu przewijania kabli i lin. Urządzenia tego typu wykorzystywane są podczas przewijania kabli i lin z bębnów, na których dostarcza je producent, na wozy górnicze z przeznaczeniem do dalszego ich transportu. Opisana przewijarka do kabli i lin KUP-01, opracowana przez KOMAG, jest alternatywą dla obecnie stosowanych rozwiązań technicznych.
EN
The compact device aiding the of cables and ropes rewinding is described. Such devices are used during rewinding the ropes and cables from the drums, delivered by the manufacturer, to mine cars for their further transportation. The described cable and rope rewinder of KUP-01 type, developed by KOMAG, is an option for the currently used technical solutions.
4
Content available Analiza możliwości zastosowania magnesów neodymowych w hamulcach urządzeń małej mechanizacji
Dobrzaniecki Piotr
Maszyny Górnicze
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2019
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R. 37, nr 2
13--26
PL
W artykule przedstawiono rezultaty prac badawczo-rozwojowych, związanych z projektem hamulca magnetycznego, przeznaczonego do zastosowania w urządzeniach małej mechanizacji. Zaprezentowano wyniki wstępnych prac badawczych, prac modelowych, efekty wykorzystania technologii druku 3D oraz wyniki badań prototypu układu magnetycznego.
EN
The results of research and development works related to the design of a magnetic brake designed for use in small mechanization devices are presented in the article. The results of preliminary research work, model work, effects of the use of 3D printing technology and the results of a magnetic system prototype tests are presented.
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