Ľubomír Šooš

By Ľubomír Šooš

Part of the book: Performance Evaluation of Bearings

By Ľubomír Šooš

Throughout the world in the last two decades, solid noble biofuels produced on the basis of wood and agricultural biomass have been widely used. Many European Union countries have enacted legislation for solid noble biofuels oriented primarily to energy carriers manufactured from wood raw materials. The production of noble biofuels is a fitting direction for the recovery of biomass and other energy wastes. Fuel in the twenty-first century must, in addition to environmental and economic criteria, fulfil the criterion of high comfort and safety in its combustion. Modern energy carriers must have uniform size, density, moisture and shape. One of the most progressive means of waste recovery is the compaction of particulate matter into different shapes and sizes. The technologies of transforming biomass into biofuels with the required properties are compacting, briquetting and pelleting. I am working on a research of compaction technologies and the development of compacting machine design at the Institute of Production Systems, Environmental Technology and Quality Management of the Faculty of Mechanical Engineering of STU in Bratislava for more than 26 years. In its scientific research activity, the definition of equations describing the dynamic process of compaction, experimental tests of the compaction process, design and testing of new press machine were undertaken. Over the stated period, we have designed and developed several machines that are today in serial production. Chief among these is the BL 55–280 briquetting press, the DZ 240 disintegrating machine, the KUDO 2009 mobile unit for treatment of wood waste, the TR 200 solid material separator, the PLG 150 round pelleting press, the ZBL-2-860 double-screw briquetting press or the RCM 650 ring compacting machine. We have submitted over 53 patents and industrial models. The aim of this chapter is to describe the new original and progressive designs of these press machines.

Part of the book: Renewable Energy

By Ľubomír Šooš

The progressive technological growth in developed industrial countries is characterized by the increasing range of manufactured parts, the variety of their shapes, and the development and usage of new non-traditional materials. At the same time, demands for high quality and production efficiency must be fulfilled. The essential function of machine tools is to make workpiece surfaces with the required geometry and with the required surface quality under economically efficient conditions. A significant benefit in increasing the efficiency and quality of machined surfaces was the development of high-speed machining. With the application of this machining method, the overall concept of the machine tool and the construction of its individual nodes have changed. The headstock has a significant impact on the quality of the final product and the overall productivity of the machine tool. Machine tools with integrated drive headstocks offer the users much greater performance and reliability. The aim of the presented chapter is the analysis of high-speed machining technology, a description of the structures of high-frequency headstocks and their individual parts, along with the design of a headstock with an integrated drive for the specific case of a machine tool.

Part of the book: Machine Tools