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The present paper deals with the study of fluid and thermal characteristics of the metal foam with an open cell structure for use in solar thermal applications. The study of selected parameters was performed using CFD tools based on finite volume method calculation in software Ansys Fluent. Presented simulation was carried out on two types of metal foam elements with a density of pores of 10 and 20 PPI, which were designed and modeled by the authors using CAD tools. The basis of a model formed tetrakaidecahedron s...

Decades are mining raw materials from seabed deposits. We are talking about deposits which are on the interface of land and sea. These are placer deposits as heavy metals and gemstones, secondary deposits of limestone, phosphorus, salt and also beach deposits on the edge of the continents. In this article, the authors want to become familiar with both forecasting utilization of selected earth resources, but also want to point out new trends in obtaining them. In this article, we have a broad spectrum of earth reso...