A. Badidová, A. Nováková, T. Dzuro, M. Moravec, G. Izaríková
{"title":"The Analysis of Sound Sources in a Vehicle","authors":"A. Badidová, A. Nováková, T. Dzuro, M. Moravec, G. Izaríková","doi":"10.1109/ICTEP48662.2019.8968968","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968968","url":null,"abstract":"In connection with a transfer of noise and vibrations into the internal space (interior) and external space (surroundings) of a vehicle, the acoustics are regarded as a construction component part of the development of vehicles. There is a growing emphasis placed the acoustic comfort. While the pragmatic, material and functional criteria had been crucial in the past, the emotional and feeling demands or wishes of a vehicle user are important today. The high level of a vehicle drive overall comfort is of a crucial importance for the occupants of the vehicle from the point of view of the drive comfort. Authors of the paper highlights the importance of acoustics for the drive comfort of the vehicle occupants from the point of view of the drive comfort perception. Authors emphasize the importance of acoustics for the drive comfort of vehicle occupants, noise-related statutory requirements, the conceptual conditions and they present the typical sources of vehicle sound.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128880356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microclimate and thermal comfort parameters simulation","authors":"L. Džuňová, R. Králiková","doi":"10.1109/ICTEP48662.2019.8968948","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968948","url":null,"abstract":"The paper deals with the simulation of microclimatic conditions in the indoor environment and their influence on the perception of thermal comfort of man. It contains an overview of available simulation tools for analysis of microclimatic conditions, their principles and utilization. The experimental part of the paper includes measurement of air temperature, air velocity and relative humidity at the selected workplace and subsequent use of selected simulation tools for interpretation of results. Based on the simulation results, it is possible to monitor the exceeding values of the selected parameters and optimize the microclimate conditions in the workplace to the most effective compliance with the legislative, hygienic and safety requirements.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124290058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. ĽubomírŠooš, B. J. Beniak, C. Križan, D. I. Onderová, E. Matus
{"title":"Press machine with invert kinematic","authors":"A. ĽubomírŠooš, B. J. Beniak, C. Križan, D. I. Onderová, E. Matus","doi":"10.1109/ICTEP48662.2019.8968947","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968947","url":null,"abstract":"The briquetting is one of technologies which transforming biomass into biofuels with the required properties. We know three basic briquetting technologies - mechanical, hydraulic and screw. Screw press briquetting machine clearly produce the best-quality briquettes. The advantage of this sort of briquetting is that, as opposed to the other technologies, the briquettes are created continuously accordingly therefore are compactness, with high stiffness and densities. Average density of this kind of briquettes is 1.2–1.4 kg/dm3. Briquettes can be produced in a deference of shapes and sizes. Current designs of the screw press briquetting machine have several structural drawbacks. Among them belong high wear of the screw tools, and low axial bearing durability. During starting produce briquettes at the screw press briquetting machine we have to heating of the rotating screw and during operation we have to cooling it. The result of our research has been in first stage a solution for removing faults in the existing constructions of screw press briquetting machine. It was a new design of briquetting presses with two screw “back to back” arrangement and with changeable front end sides of screw. In the second stage we have designed totally new conception of the construction and kinematics of the screw compactor (PP-5022-2015, or UV 7380). The essence of the proposed solution of the compacting machine with “inverted kinematics”. Aim of presented article is describe and develop function model of original construction for a compacting machine with inverted kinematics.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124924164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recycling of lithium accumulators","authors":"J. Klimko, D. Oráč, D. Klein","doi":"10.1109/ICTEP48662.2019.8968981","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968981","url":null,"abstract":"More than 200,000 tons of portable batteries and accumulators are placed on the market annually in the EU countries and more than 20 wt. % of them are lithium ones. In addition to lithium, they contain metals such as cobalt, nickel, manganese, copper aluminum and others. High share of lithium battery and a limited lifespan results to a large quantities of waste. Pyrometallurgical recycling methods, which are currently more widely used, have a lower selectivity and consist only in the recovery of selected metals. The remaining substances are concentrated in slag, which is deposited in landfills. Lithium slag composition and leaching behavior of lithium and cobalt in Sulfuric acid was studied in this paper. The leaching was carried out in 0.1, 0.5, 1 and 2M H2SO4 with and without 30 ml of H2O2 at temperatures of 20, 40, 60 and 80°C. All slag samples were leached for 90 minutes with constant stirring of 300rpm at liquid to solid ratio of 50. The obtained results showed that 66.85% of Co and 99% of Li was leached at 1M H2SO4 with addition of H2O2 at temperature of 80°C.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116398081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Fizer, M. Slivka, R. Mariychuk, O. Fizer, N. Korol, A.O. Kryvoviaz, V. Lendel
{"title":"Theoretical Estimation of Toxicity of New Condensed Heterocyclic Cationic Surfactants","authors":"M. Fizer, M. Slivka, R. Mariychuk, O. Fizer, N. Korol, A.O. Kryvoviaz, V. Lendel","doi":"10.1109/ICTEP48662.2019.8968972","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968972","url":null,"abstract":"estimation of toxicity of two new classes of heterocyclic condensed cationic surfactants was performed. The general synthetic approaches for obtaining the target heterocyclic systems of 1,2,4-triazole and thieno[2,3-d]pyrimidine classes were discussed and the main routes to increasing of the chemical libraries through the efficient introduction of long-chain substituents were pointed out. The estimation of toxicity was done through: (a) the prediction of the LD50 values of acute rat oral toxicity with using GUSAR free online service; (b) the prediction of the LC50 values of fathead minnow with 96 hours exposure, which were predicted with using T.E.S.T. software. Computed LD50 and LC50 values testify that proposed heterocyclic surfactants have the toxicity rates close to the widely used surfactants like cetylpyridinium chloride, cetyltrimethylammonium bromide, and benzalkonium chloride. Consequently, target cationic surfactants of 1,2,4-triazole and thieno[2,3-d]pyrimidine series can be considered as non-toxic detergents and will be synthesized for the next biological testing as disinfectants.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130177283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Environmental Evaluation of Mechanical Engineering Products in their Conceptual Phase","authors":"M. Piňosová, M. Badida, M. Moravec","doi":"10.1109/ICTEP48662.2019.8968982","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968982","url":null,"abstract":"Design and development (D/D) procedures of mechanical engineering products (MEP-s) are explored holistically and are modelled by means of the sets system. The individual sets represent technical, economic, environmental, aesthetic and market requirements. The specific eco-design philosophy is derived from the environmental aspects and requirements. The final results of this process are environmentally compatible MEP-s. This philosophy is applied to the conceptual phase optimization of MEP-s. The described procedure is applied as a fundamental core for the software product CoDe-09 and its structure. An application in the automotive industry concludes the paper.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133554343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mathematical model for magnetic properties of materials in environmental engineering","authors":"D. Knežo, D. Olekšáková","doi":"10.1109/ICTEP48662.2019.8968957","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968957","url":null,"abstract":"Research and development in the field of environmental engineering technologies is expanding with an increasing interest in environmental protection, with which the closely related materials are used in the production and operation of frequently used industrial machinery and equipment. Such materials also include magnetic materials which are of particular importance for technical practice and are used in the construction of magnetic circuits, e.g. in generators, electric motors, transformers, core coils, various sensors, electromagnets, etc. Great emphasis is placed on saving electricity in the production, but also in the operation of equipment consisting of magnetic materials and the associated lower costs for the production process and also for more environmentally friendly recycling of materials.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128797440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Linnik, O. Zaporozhets, R. Mariychuk, Vladyslav V. Lisnyak
{"title":"Zinc Removal from Waters by Hybrid Sorbent with Humic Acid","authors":"R. Linnik, O. Zaporozhets, R. Mariychuk, Vladyslav V. Lisnyak","doi":"10.1109/ICTEP48662.2019.8968971","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968971","url":null,"abstract":"Humic biogenic organics can promote the detoxification of aquatic ecosystems from heavy metal ions. However, humic acids have not been widely used in adsorptive remediation of natural waters because of high solubility. In the present article, we proposed hybrid adsorbent based on silica gel sequentially modified with a quaternary ammonium salt, tetradecylammonium nitrate, and humic acids and tested it for the removal of Zn(II) from the tap water. The maximum adsorption capacity of humic acids on the modified silica gel can reach 7.1 and 11.4 mg/g at pH 7 and 3.0, respectively. The immobilized humic acids are resistant to dissolution at pHs of 5–7 and different KCl concentrations. Elution of humic acids from sorbent at pH 5–7 is below 15%. Functional groups of immobilized humic acids can bind Zn(II) ions. By using the hybrid adsorbent, the removal of Zn(II) from aqueous solution reaches 94–97% at pH 5.0–6.0. We registered the H-type adsorption isotherm at a low initial concentration of Zn2+ ions. The uptake of Zn(II) was relatively fast, and the equilibrium was reached for 20–25 min. The hybrid sorbent can be used to concentrate metal ions from natural waters and in water purification technologies.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129428545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Slivka, M. Fizer, D.Zh. Bereksazi, R. Mariychuk, A.O. Kryvoviaz, V. Lendel, N.P. Khripak, G. Koval, M. Slivka
{"title":"Preparation of Bioactive Fused Pyrimidines via Environmental Technologies","authors":"M. Slivka, M. Fizer, D.Zh. Bereksazi, R. Mariychuk, A.O. Kryvoviaz, V. Lendel, N.P. Khripak, G. Koval, M. Slivka","doi":"10.1109/ICTEP48662.2019.8968984","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968984","url":null,"abstract":"Fused pyrimidines are important structural motifs in material science, medicinal chemistry, and are useful building blocks in organic synthesis. Herein we report a new approaches in preparation of condensed thieno[2,3-d]pyrimidine-containing non-toxic compounds via environmentally friendly technologies. The microbiological activity of received compounds is also discussed.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122458105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"State assessment of stop gates of hydroelectric power plants","authors":"J. Bocko, M. Pástor, P. Lengvarský","doi":"10.1109/ICTEP48662.2019.8968951","DOIUrl":"https://doi.org/10.1109/ICTEP48662.2019.8968951","url":null,"abstract":"In the paper are described basic procedures that are necessary for analysis of deformation, strength, reliability and residual lifespan of stop gate (floodgate) equipment used in hydroelectric power stations. The structural analysis is realized by numerical and experimental methods of mechanics. Stop gate structures are very important parts of water power stations and their appropriate operation and reliability is crucial for whole power station. The analysis is at the beginning based on the finite element method and this computation serves for finding potentially critical locations in the structure. Those are then checked by experimental measurements. Further refinement of analysis is based on these basic steps. At the end of assessment, the recommendations for modification of structures in order to improve actual state are given.","PeriodicalId":366357,"journal":{"name":"2019 International Council on Technologies of Environmental Protection (ICTEP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117155151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}