Wyniki wyszukiwania - BazTech

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Possibilities of using innovative drive systems for various types of electric vehicles for seaports, container and logistics terminals

Bielawski K., Chmieliński M., Kreft O., Wiśniewski G.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

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2023

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Vol. 17 No. 2

407--413

EN

The article presents the issues regarding the possibility of using innovative drive systems designed by ZAiUP AREX Sp. z o.o. for various types of electric vehicles for seaports, container and logistics terminals. ZAiUP AREX Sp. z o.o. specializes in the design and production of technologies and innovative solutions dedicated to both the civil and military markets. Over 34 years of experience have built a solid and reliable brand. The enduring activity and a number of various projects have allowed us to gain invaluable experience and deepen our unique skills in the projects dedicated to electromobility. This publication presents proprietary technological solutions developed by ZAiUP AREX Sp. z o. o. – an electric drive system that can be used in passenger, delivery and purpose-built vehicles. Thanks to the proposed solutions, the seaports, container and logistics terminals paying attention to cargo operations, security and cybersecurity, as well as energy and innovation, can be improved to become more competitive.

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Wpływ wilgotności na przewodność cieplną ABK

Schoch T., Kreft O.

Materiały Budowlane

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2012

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nr 6

46-48

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The influence of moisture on the thermal conductivity of AAC

Schoch T., Kreft O.

Cement Wapno Beton

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2011

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nr spec.

44-48

EN

In recent years, questions emerged about how high level moisture contents might affect heat technical properties of building materials. Yet, existing standards and scientific publications, respectively, do not provide conclusive insights into the area of high rated moisture, since they are valid for the equilibrium moisture area only. Taking instructions of calculation according to harmonized European standards (EN ISO 10456, DIN EN 1745) as a basis, typical moisture contents of freshly produced AAC would theoretically involve immense surcharges on A, which would drastically affect thermal conductivities and, in turn, increase heating costs. Moreover, increasing risks of mould formation and other damages would be expected. Our experiments clearly demonstrate that actual increases in Gamma at production moisture levels are far below values stated in the European standards. In addition to this fundamental perception recent investigations have shown that the surcharge of moisture content under typical condition of AAC use in buildings the moisture conversion factor Fm is not higher than 5%. In several investigations a lower value for Fm have been found and can be used in the future for starting points of further investigations and tests.

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Pore size distribution effects on the thermal conductivity of light weight autoclaved aerated concrete

Kreft O., Hausmann J., Hubalkova J., Aneziris C. G., Straube B., Schoch T.

Cement Wapno Beton

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2011

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nr spec.

49-52

EN

Aim of the present study was to correlate thermal conductivities of highly porous autoclaved aerated concrete (apparent density < 100 kg/m3) with appendant micro- and nano-structural properties. AAC specimens with approximate apparent densities, but different pore size distributions were fabricated through utilizing specially selected, surface active additives when preparing the slurry of raw materials, aluminum and water. The main focus of this study is on the quantitative analysis of size and morphology of both pores and solid skeleton by 3D X-ray tomography (CT) and scanning electron microscopy (SEM). Moreover, specific surface areas and pore size distributions were determined by the methods of gas adsorption and mercury porosimetry. Apparent thermal conductivities depend on the number of pores, pore size distributions and thicknesses of the separating walls of the solid skeleton. The present study provides further inside in the mechanisms of heat transfer in light weight autoclaved aerated concrete.