Wyniki wyszukiwania - BazTech

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Increasing the Efficiency and Environmental Friendliness of Fire Resistance Assessment Tools for Load-Bearing Reinforced Concrete Building Structures

Nuianzin Oleksandr, Pozdieiev Serhii, Sidnei Stanislav, Kostenko Tetiana, Borysova Anna, Samchenko Taras

Ecological Engineering & Environmental Technology

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2023

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Vol. 24, iss. 4

138--146

EN

In this work, it is substantiated that it is possible to create a fire installation with parameters that will ensure higher environmental friendliness of the tests compared to large-sized furnaces. At the same time, its configuration will be universal, compact and capable of high reproducibility of experimental results. A full factorial experiment was conducted. According to its results, the parameters of the furnace chamber, which most significantly affect the reproducibility of the results, were determined. This are the volume of the chamber, the distance from the burners to the surface of the examined fragment of the load-bearing reinforced concrete building structure, and the height at which the opening for the exit of combustion products is located. Adequacy of operation of the designed installation was verified by the computer simulation method. Natural gas was used as fuel. On the basis of the received data, a sketch of the installation was created for conducting the experimental part of evaluating the fire resistance of load-bearing reinforced concrete building structures under the influence of the standard fire temperature regime. It can ensure a high degree of reproducibility of the test results.

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The prospect of using retro timber in the furniture industry

Trofimov Sergei, Nkitina Tatiana, Prałat Barbara, Lange Julia, Rogoziński Tomasz

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2023

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No. 121

66--71

EN

The prospect of using retrowood in the furniture industry. To avoid over-consumption of natural resources, the idea of recycling or extending the life of wood-based materials is often considered in recent times. Therefore, it seems appropriate to conduct research aimed at studying the mechanical properties of retrowood and determining the possibility of its application. As part of a scientific study, surveys of old wooden residential buildings (Никитина et al., 2017) of the Russian North with a service life of 60–100 years and mechanical tests of both retrowood and freshly cut wood were carried out. Comparison of indicators of physical and mechanical properties of old wood and new wood material used in the manufacture of furniture with normative indicators of properties was made. Based on the research results, an assessment was made of the possibility of reusing retrowood in the production of furniture and interior elements. Well-preserved vintage wood from old wooden houses being demolished is a potential resource-saving raw material for making furniture, which is confirmed by testing the properties of this material. Based on the research results, the possibility of designing and manufacturing furniture and interior elements from retro wood is considered.

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Innovative Rail Freight Wagons – a Precondition to Increase the Market-Share of Rail Freight

Hecht M.

Archives of Transport

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2014

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Vol. 29, iss. 1

17--26

EN

Rail transport is a very important type of transport. Due to its environmentally friendly nature it is necessary to dedication him considerable attention. The article stated the need for the implementation of innovative solutions for wagons. This article presents precondition to increase market share of rail freight. Considerations that must be met by modern rail transport were presented in details. The main focus was on provide assumptions to implement innovative wagons and their areas of influence.

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Environmental perspective of location based services and light goods vehicles in urban areas

Pawlak Z.

LogForum

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2010

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Vol. 6, no. 4

11-21

EN

The article looks at the underexplored area of light goods vehicle (LGV) operation. Specifically, it is investigated to what extent various location based services (LBS) can be applied in the context of LGV operation in order to improve their environmental friendliness in urban areas. In doing so, LBS applied in real time navigation, dynamic fleet management, freight tracking and monitoring, hazardous materials transport, location-specific tolls and taxes and geo-eco-driving are described in relation to their usefulness in LGV operation as well as the potential in reducing LGV-originating pollution. Where available, real world examples of such applications are given. The discussion reveals particular significance in that context of real time navigation and dynamic fleet management, which are widely applicable solutions in LGVs operation. Freight monitoring and tracking, including hazardous materials transport, have been also found to be of an importance due, yet with a more limited applicability. As regards location-specific tolls and taxes, and geo-eco-driving, significant potential of these LBS has been identified, yet due to their very limited applicability in general, no robust conclusions could be drawn. Last but not least, a significant gap in the detailed knowledge regarding the area has been revealed and directions for further research have been suggested

PL

W artykule poddano rozważaniom problematykę operowania transportu dostawczego (LGV) w obszarach zurbanizowanych. W szczególności, poddane zostały analizie możliwości zastosowania usług lokalizacyjnych (LBS), wykorzystujących technologię bazującą na systemach telefonii komórkowej różnych generacji w zmniejszaniu negatywnego wpływu transportu dostawczego na środowisko naturalne. Dywagacje objęły usługi lokalizacyjne takie jak: nawigacja w czasie rzeczywistym, dynamiczne zarządzanie flotą transportową, śledzenie oraz monitorowanie frachtów, transport materiałów niebezpiecznych, opłaty i podatki związane z przemieszczaniem się środków transportu w obszarach miejskich, oraz techniki ekologicznego prowadzenia pojazdów (eco-driving). Aspekty te postrzegane są przez autora jako najbardziej istotne w redukowaniu poziomu emisji zanieczyszczeń pochodzących od transportu dostawczego. Z przeprowadzonych analiz opartych na aplikacjach konkretnych rozwiązań w systemie społeczno-gospodarczym miast wynika, że w omawianym kontekście ekologicznym usługami o największym znaczeniu są nawigacja w czasie rzeczywistym oraz dynamiczne zarządzanie flotą transportową. Śledzenie oraz monitorowanie frachtów, szczególnie o niebezpiecznych właściwościach zostało zidentyfikowane jako usługa o znaczącym wpływie, jednak istotnie ograniczonym ze względu na specyfikę sektora. Pozostałe czynniki - takie jak na przykład eco-driving, pomimo znaczącego niewątpliwie wpływu, nie pozwalają na wysnucie wiążących wniosków ze względu na ograniczone ich stosowanie. W podsumowaniu wskazano na niewystarczającą ilość badań dotyczących omawianej problematyki i zasugerowano ich dalsze kierunki