Title:

Life Cycle of Selected Package Waste

Authors:

Kamila Cierpiał, Agnieszka Bala-Litwiniak

Abstract:

One of the main priorities of the EU is the rational management of packaging as part of sustainable development. The Tetra pak analyzed in this work is a popular packaging material that is used to pack liquid food, i.e. juices, milk, etc. The Tetra pak is a multilayer material consisting of several layers, bonded under the influence of temperature, without the addition of glue. These packaging are disposable, and because it is a waste that is difficult to naturally biodegrade, it is a serious problem and a threat to the environment. Due to the growing public awareness and restrictive legal conditions in the field of waste management and related environmental protection, the interest and importance of methods assessing the impact of products' life cycle on the natural environment and the human body is increasing. This assessment covers the path from obtaining raw materials to the management of waste that arose from its use. One of such methods is the management of the Life Cycle Assessment (LCA). The article presents the analysis of the life cycle of selected packaging waste, the course of the process of formation and recycling, including multi-material packaging, Tetra pak type. In addition, possibilities of the utilisation of Tetra pak in the pyrolysis process are discussed. The basic physicochemical properties of the analysed waste were presented, as well as the calorific value of the resulting pyrolysis gas was determined. The obtained research shows that the use of pyrolysis process for the utilisation of Tetra pak allows their mass to be reduced to 72% relative to their original weight.

Citation:

Cierpiał Kamila, Bala-Litwiniak Agnieszka: Life Cycle of Selected Package Waste, Advance in Thermal Processes and Energy Transformation, Volume 3, No.2, (2020), p. 34-38, ISSN 2585-9102. https://doi.org/10.54570/atpet2020/03/02/0034

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Title:

Model Solution of the Transformation of an Aviation Turbo Compressor Engine into an Energetic Gas Turbine

Authors:

Marián Hocko

Abstract:

The article deals with the problematic of the model solution of the transformation of the disposed military aviation turbo compressor engine (ATCE) into energetic gas turbine (EGT) in the conditions of laboratory environment of the university with the minimal financial costs. The used techniques and methods of the transformation can be applied for the secondary use of the disposed ATCEs that are technically obsolete for the military engineering; however they are useful in the ground conditions.

Citation:

Hocko Marián: Model Solution of the Transformation of an Aviation Turbo Compressor Engine into an Energetic Gas Turbine, Advance in Thermal Processes and Energy Transformation, Volume 3, No.2, (2020), p. 39-44, ISSN 2585-9102.https://doi.org/10.54570/atpet2020/03/02/0039

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Title:

The Role of Evaporation in the Drying of a Soil Profile

Authors:

Milan Gomboš,Branislav Kandra, Andrej Tall, Dana Pavelková

Abstract:

In general, soil is defined as a top, weathered layer of the Earth crust, which is suitable for plant growth. In the system soil - plants – atmosphere, mass and energy is transformed into biomass. This transformation is enabled by photosynthesis and photosynthesis occurs only if there is a water flow between soil, plants and atmosphere. The process of water transfer from soil, through soil surface and plant cover is called evapotranspiration. Among the most important elements of the hydrological cycle are rainfall and water evaporation. The contribution aims at quantifying the role of evaporation during the process of soil profile drying. This contribution examines the impact of evaporation deficiency, which is the difference between potential and actual evapotranspiration, on the drying of a soil profile. Drying process is quantified by analysing the changes of soil water storage with regard to the point of decreased availability. The analysis was based on the numerical experiment via the mathematical model “GLOBAL”. Before the numerical experiment was conducted, the model had been verified by comparing the calculated and the measured values of soil water storage in the investigated area in a soil profile up to the depth of 0.8 m. The experiment outcome is the analysis and the quantification of the impact of evaporation deficiency on soil profile drying.

Citation:

Citation: Gomboš Milan, Kandra Branislav, Tall Andrej, Pavelková Dana: The Role of Evaporation in the Drying of a Soil Profile, Advance in Thermal Processes and Energy Transformation, Volume 3, No.2, (2020), p. 45-52, ISSN 2585-9102. https://doi.org/10.54570/atpet2020/03/02/0045

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Title:

Unconventional Experimental Methods of Drilling Management with the Perspective of Their Use in Deep Drilling

Authors:

Gabriel Wittenberger, Erika Škvareková

Abstract:

The development of technologies for deep drilling is closely related to improving the quality of drilling. Around 30% of new deep drilling techniques are used in the world today, while 70% still uses traditional methods. Advances in new deep drilling technologies are leading to the development of new types of drilling rigs for deep drilling (depending on the techniques used). The issue of drilling technique has a mechanical and physical influence on rock drilling. In recent years, several tests and analyzes of disintegration and drilling methods have been performed. The article focuses on the description of the working principle and the possibilities of using new methods of rock separation. New physical - thermal methods of drilling are pointed out here. The mentioned methods are still the subject of research and hope for future technologies in the field of deep drilling.

Citation:

Wittenberger Gabriel, Škvareková Erika: Unconventional Experimental Methods of Drilling Management with the Perspective of Their Use in Deep Drilling, Advance in Thermal Processes and Energy Transformation, Volume 3, No.2 (2020), p. 53-57, ISSN 2585-9102. https://doi.org/10.54570/atpet2020/03/02/0053

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