Integrated Technologies and Energy Saving最新文献

{"title":"TOPINAMBOUR MAIN COMPONENTS CONTENT DETERMINATION IN THE PROCESS OF STORAGE VIA ANALYTICAL AND PHYSICOCHEMICAL ANALYSIS METHODS","authors":"S. Samoilenko, I. Bielykh, L. Myronenko, O. Zviahintseva, O. Blyzniuk, N. Masalitina","doi":"10.20998/2078-5364.2022.1.04","DOIUrl":"https://doi.org/10.20998/2078-5364.2022.1.04","url":null,"abstract":"Paper is devoted to the study of topinambour's biologically active substances through analytical and physico-chemical analysis methods. \u0000In the course of experiment,  content of inulin and vitamins in topinambour was determined, using methods of analytical chemistry, which was: inulin – 65,43 μg/100 g, vitamin C – 100,12 μg/100 g, beta-carotene – 55,26 μg/100 g. \u0000Change in inulin mass fraction in topinambour's raw material powder during its storage at different temperatures was investigated. During seven months topinambour tubers storing at different temperature conditions, the mass fraction of inulin was larger in altered into powder and dried raw materials - 60 %, then in freezer – 50 % and the smallest mass fraction was in refrigerator – 20 %. \u0000Сhange in ascorbic acid mass fraction by means of titrimetric analysis method was investigated. A sharp decrease of ascorbic acid content in tuber's powder was observed, it is due to vitamin inactivation under high temperatures in the process of raw materials drying. Content of ascorbic acid in cooled tubers (4 ± 2) °С to the end of shelf-life decreased by 60 %. The best results were obtained in frozen tubers (–20 ± 2) °C, content of ascorbic acid in them has changed 12–15 % compared to control sample. \u0000Beta-carotene content was determined by photocolorimetric method according to standard methods. Content of β-carotene decreased to a level 12 % by the end of shelf life in topinambour's tuber powder. In frozen tubers (–20 ± 2) °С content of β-carotene was accompanied by a decrease in the mass fraction of β-carotene throughout whole storage period and amounted to 60 %. The best results were obtained in tubers that overwintered in soil, vitamin's mass fraction in them decreased by only 10 %. \u0000When storing topinambour's tubers at different temperature conditions, proportion of vitamins is the highest in tubers that have overwintered in soil, then in the freezer and the lowest in the refrigerator. \u0000Recommendations on the method of topinambour's storage with maximum preservation of biologically active substances content were given.  \u0000Dried topinambour's tuber powder is most suitable for long-term storage with minimal loss of inulin and beta-carotene, which allows to use this powder in the production of therapeutic and prophylactic drugs.  \u0000When stored at temperatures (–20 ± 2) °C there is a sharp decrease in nutrients in the first two months and a further decrease is very slow. Such storage is expedient if it is necessary to keep tubers for a long time. For example, in production of topinambour's preparations it is necessary to provide а plant with raw materials for the winter.  \u0000Storage in refrigerator at a temperature of (4 ± 2) °C is advisable for a short period of time. Decrease of inulin and vitamins content is not rapid, in such conditions it can be stored for two months. In the long period, tubers wither and pathogenic microflora begins to develop on them. \u0000The best indicators in all biologically activ","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131756271","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":"IMPROVING THE ENVIRONMENTALITY OF MOTOR GASOLINE","authors":"O. Trotsenko, A. Grigorov","doi":"10.20998/2078-5364.2022.1.01","DOIUrl":"https://doi.org/10.20998/2078-5364.2022.1.01","url":null,"abstract":"The article considers measures aimed at improving the environmental situation of large cities by reducing the harmful effects of exhaust gases generated during the operation of road transport. It is substantiated that a direct increase in the environmental friendliness of motor gasoline is the most promising approach to reducing the toxicity of exhaust gases. This increase can be achieved by reducing dissolved hydrocarbon gases (C4H10 and iso-C4H10) and metals (Pb, Fe, Mn) in gasoline; facilitation of the fractional composition of gasoline (including the end-boiling temperature); reduction in gasoline content of sulfur, aromatic hydrocarbons and olefins. Reducing these undesirable, from an environmental point of view, components will improve the quality of gasoline to the Euro-5 requirements adopted in Ukraine, as well as significantly extend the service life of special catalysts installed on motor vehicles to clean exhaust gases. \u0000The effect on the gasoline fraction (PK – 180 °C) and commercial gasoline A-95, oxygenates (methyl tert-butyl ether and ethyl alcohol) and 1,3-diphenyltriazene was studied. It is established that the use of 1% of the mass. 1,3-diphenyltriazene, in the composition of straight-run gasoline allows to increase its resistance to detonation by 12 points, reduce the toxicity of exhaust gases by 24% in terms of CO and 17% in terms of CH. It was determined that the addition of 1,3-diphenyltriazene to commercial gasoline A-95 in the amount of 1% by weight, in contrast to oxygenates, does not lead to a deterioration in the evaporation of gasolines and their physical stability. \u0000The use of 1,3-diphenyltriazene in commercial gasoline, due to its positive properties, in the future will optimize the use of other additives, including oxygenates, which are widely used today in the technology of commercial gasoline.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115343381","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":"APPLICATION OF ANALYTICAL CHEMISTRY AND CONTROL METHODS IN OXIDATION PROCESSES STUDIES OF CHEMICAL, FOOD BIOTECHNOLOGICAL AND PHARMACEUTICAL TECHNOLOGIES","authors":"S. Samoylenko, A. Belinska, I. Belykh, O. Blyzniuk, N. Masalitina, L. Myronenko, O. Varankina","doi":"10.20998/2078-5364.2022.1.02","DOIUrl":"https://doi.org/10.20998/2078-5364.2022.1.02","url":null,"abstract":"Technological parameters, namely temperature and duration of β-carotene extraction process from filamentous fungus Blakeslea trispora biomass via vegetable oils with various fatty acid compositions and various contents of natural antioxidants (refined deodorized sunflower, high-oleic sunflower, corn and sesame) have been investigated. Statistical models of β-carotene dependences, as well as analytical numbers, characterizing content of free fatty acids (acid number) and primary products of lipid oxidation (peroxide number) content, in oil extracts of the specified refined deodorized oils, from temperature and extraction duration have been built. \u0000Rational parameters of β-carotene extraction from Blakeslea trispora biomass with selected extractants (refined deodorized sunflower, high-oleic sunflower, corn and sesame oils) have been determined to control extract's technological properties. It has been proven that usage of these refined deodorized oils as extractants practically does not affect on the target product content in oil extracts of biomass, but it does affect on analytical numbers of extracts, characterizing content of free fatty acids, peroxides and hydroperoxides. The highest content of free fatty acids in β-carotene, containing biomass extraction with sunflower oil, has been observed. The minimum content of free fatty acids in extracts with corn and sesame oils has been be achieved. The highest content of primary products of β-carotene lipid oxidation (peroxides and hydroperoxides), containing biomass extraction by sunflower oil, has been observed. The minimum content of free fatty acids in extracts with usage of sesame oil has been achieved. \u0000It is possible to predict β-carotene content, as well as acid and peroxide numbers of oil extracts from biomass in specified refined deodorized oils, depending on temperature and extraction process duration, using obtained approximation dependences.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"60 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113941118","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":"PREDICTION OF CHANGES IN THE BALLISTIC CHARACTERISTICS OF SHOTS OF SEPARATE-SLEEVE LOADING WITH LONG-TERM CHARGES","authors":"O. Anipko, D. Baulin, I. Biryukov, O. Gunko","doi":"10.20998/2078-5364.2022.1.06","DOIUrl":"https://doi.org/10.20998/2078-5364.2022.1.06","url":null,"abstract":"Currently, the problem of many countries of the world, including Ukraine, is the presence in arsenals, bases and warehouses of a large number of various ammunition that are beyond the boundaries of the guaranteed storage periods. The lack of production capacity in Ukraine for the manufacture of ammunition has led to the fact that ammunition is currently in operation, the storage time of which exceeds 30 years. \u0000As the results of studies show, during long-term storage, nitrocellulose-based gunpowders used in ammunition undergo various physical and chemical transformations, which leads to changes in their properties and, in turn, to the negative consequences of the use of such ammunition. \u0000This article analyzes publications devoted to scientific research on the problems of operating long-term ammunition, their impact on the ballistic characteristics of weapons and the feasibility of using such ammunition, both in terms of personnel safety, and the accuracy of performing fire missions and the operation of weapons in general. \u0000The general problem of the operation of ammunition with post-warranty storage periods is presented, as well as one of the tasks associated with the possibility of predicting changes in the properties of powder charges at different storage periods. \u0000The generalizing data of the shooting experiment with the use of the 122-mm D-30 howitzer and shots of various years of manufacture are given. A change in the firing range depending on the life of the ammunition is shown, as well as a change in some ballistic characteristics. On the basis of the experiment, a relation has been obtained that makes it possible to predict changes in the initial velocity of the projectile depending on the mass of the charge. \u0000The possibility of restoring the properties of powder charges by treating them with hydrogen peroxide is shown, as well as a predictive assessment of the appropriate timing for the regeneration of nitrocellulose powder charges for homologation of the ballistic and energy characteristics of ammunition.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124302989","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":"ANALYSIS OF THE HEAT EXCHANGE PROCESS IN A TUBULAR FILM ABSORBOR DURING SULPHATION OF MIXTURES OF ORGANIC SUBSTANCES","authors":"O. Dzevochko, M. Podustov, A. Dzevochko","doi":"10.20998/2078-5364.2022.1.03","DOIUrl":"https://doi.org/10.20998/2078-5364.2022.1.03","url":null,"abstract":"The article states that the production of surfactants consists of the following stages: catalytic oxidation of sulfur dioxide, sulfation, neutralization and purification of gaseous emissions. The sulfation step is the main stage at which high-quality intermediates can be obtained. \u0000It has been shown that tubular film absorbers are used for the sulfation process, which create mild conditions for the exothermic reaction due to efficient heat dissipation. This makes it possible to obtain high-quality surfactants both in terms of the degree of sulfation, and in terms of light products. \u0000It is stated that a tubular film absorber with a descending phase flow is a vertical structure with two flows: a liquid phase film and a gas-air flow, ie. a two-phase system. \u0000The presence of two phases changes not only the forms of motion of such systems, but also their nature, as the interaction between the phases has a decisive influence. In contrast to single-phase flows, new forces are manifested at the interface of two-phase flows - forces of interphase surface tension, which affect both the process of mass transfer and the process of heat transfer. \u0000It is shown that in periodicals there is little data on the impact on the process of heat transfer temperatures and consumption of starting reagents. \u0000Such studies will make it possible to create a more modern design of industrial tubular film absorber. \u0000The data of the analysis on the choice of temperatures and costs of the used reagents are given. A deeper analysis of heat transfer processes was performed by the method of mathematical modeling. \u0000A simplified mathematical model is presented, which allows to analyze the heat transfer process along the length of the absorber. A program for calculating the process of sulfation of a mixture of organic substances in a tubular film absorber using the application package MathLab. \u0000The results of mathematical modeling for three velocities of gas flow: 16 m/s, 20 m/s, 24 m/s, which were recommended in the analysis of the costs of starting reagents. \u0000It is shown that the main amount of reaction heat is transferred to the cooling water along the entire length of the absorber.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123614214","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":"FEATURES OF THE APPLICATION OF HEAT STORAGE ELEMENTS WITH A PHASE TRANSITION IN THE REGENERATIVE HEAT EXCHANGERS OF GLASS FURNACES","authors":"O. Koshelnik, S. Hoisan, T. Pugacheva, O. Kruglyakova, V. Pavlova","doi":"10.20998/2078-5364.2022.1.07","DOIUrl":"https://doi.org/10.20998/2078-5364.2022.1.07","url":null,"abstract":"Increasing the air temperature in regenerative heat exchangers is one of the most effective means of increasing the efficiency of glass furnaces and reducing their fuel consumption. The value of losses with flue gases in furnaces remains quite high and amounts to 25–40 %. As a result, the question arises in the modernization of flue gas utilizers of glass furnaces, the purpose of which is to increase the amount of heat extracted from flue gases without a significant change in overall dimensions, as well as the aerodynamic characteristics of heat exchangers. One such measure is the use of heat storage elements with a phase change in the packing of regenerators. A feature of such materials is the presence of «residual» heat of the phase transition, i.e., such a packing will receive and transfer more heat by this amount compared to the traditional one. However, when solving this problem, the question arises of choosing a fusible material that satisfies the operating conditions of the packing of regenerative heat exchangers of glass furnaces. The paper analyzes the thermophysical properties of some inorganic substances, the characteristics of which make it possible to use them as a fusible material for packing elements. However, at the moment, inorganic compounds of barium sulfate BaSO4 and sodium sulfate Na2SO4 in combination with magnesite and periclase refractories have acquired practical use for high-temperature installations (regenerative heat exchangers of blast-furnace metallurgical production). Such materials have shown good thermal stability and stability under thermal cycling. The study of the possibility of using materials with a phase transition for heat storage elements of packings is associated with the need for mathematical modeling of complex heat exchange processes in the working space of regenerative heat exchangers under conditions of a quasi-stationary mode of their operation. Therefore, the final conclusions about the effectiveness of the modernization of regenerative heat exchangers by using packing with a phase change can only be made based on the results of additional studies, which will determine the influence of a whole complex of various factors that affect the performance of heat storage elements of this design.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120934607","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":"ALGORITHMIC SUPPORT FOR DECISION-MAKING ON THE EFFICIENCY OF OPERATION OF ABSORPTION AND REFRIGERATION PLANTS OF AMMONIA PRODUCTION","authors":"A. Babichenko, Yu. Babichenko, Y. Kravchenko, I. Krasnikov","doi":"10.20998/2078-5364.2021.4.02","DOIUrl":"https://doi.org/10.20998/2078-5364.2021.4.02","url":null,"abstract":"The features of the hardware and technological design of the AM-1360 series ammonia synthesis units operating in Ukraine are established, the main of which is the use of heat-using ammonia-water absorption and refrigeration units in the secondary condensation complex. The analysis of the functioning of the absorption and refrigeration units has been carried out. A significant dependence of their efficiency on external disturbances, such as temperature and humidity of atmospheric air, has been established. This causes significant fluctuations in the cooling temperature of the circulating gas in the evaporators of absorption-refrigeration units, which significantly affects the efficiency of ammonia production in general. Based on the results of the analysis of the existing information system, implemented on the basis of the TDC-3000 microprocessor complex, recommendations for its improvement were developed, the presence of which makes it possible to abandon daily analyzes and carry out only control ones to check measuring instruments. \u0000Algorithmic support has been developed, implemented in the MATLAB package and tested according to the data of industrial operation of absorption and refrigeration units of the ammonia synthesis unit. This allows the operator, in real production conditions, to obtain operational information on the numerical indicators of the efficiency of operation of absorption and refrigeration units, which characterize their operation to the greatest extent (circulation rate, cooling capacity, circulating gas cooling temperature and thermal coefficient) and make a decision on the possibility of reducing the cooling temperature. of circulation gas in evaporators by changing the frequency of circulation of solutions The created algorithmic software in the MATLAB environment allows embedding a client module, the so-called OPC client. The latter provides technology for free programming of access to current data.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115924415","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":"USE OF ANALYSIS TECHNIQUE FOR IMMOBILIZED YEAST SACCHAROMYCES CEREVISIAE IN THE BIOTECHNOLOGICAL INDUSTRY","authors":"I. Bielykh, S. Samoilenko, A. Belinska, O. Varankina, O. Blyzniuk, N. Masalitina, L. Myronenko, A. Kukushkin","doi":"10.20998/2078-5364.2021.4.10","DOIUrl":"https://doi.org/10.20998/2078-5364.2021.4.10","url":null,"abstract":"Article is devoted to the current state and problems of microbial cells immobilization and also prolonged storage of immobilized cells systems for the aims of biotechnological industry. \u0000In the experimental part immobilization conditions for the cells S. cerevisiae in alginate gel and vitality test, which had given high reproducibility of experimental results, were developed. \u0000Experimental results showed that viability of immobilized cells was higher than that of free yeast cells. It is possible that gel matrix has a protective effect on yeast cells during freezing. \u0000Comprehensive effect of cooling modes and preservation protective mediums, which contain sodium alginate, on viability of yeasts has been investigated. Advantage of yeast cells storage in immobilized state was shown experimentally. It was found that cooling mode and composition of preservation medium affect on the viability of S. cerevisiae cells during cryopreservation. In all freezing medium, both without protective components and with addition of a cryoprotective agent, the best results were obtained with cooling at a rate of 1°C/min. Viability indices in the samples were: 73.1 % – in distilled water; 90.8 % – in 1 % sodium alginate solution; 87.1 % – in 5 % DMSO solution and 86.1 % – in 1 % sodium alginate solution with the addition of 5 % DMSO. When cells were frozen in a 5 % DMSO solution and in a 1 % sodium alginate solution with the addition of 5 % DMSO, number of viable cells also decreased as cooling rate increased, but, probably, did not differ from the cell viability index in those samples that were frozen in 1 % sodium alginate solution. The highest results of viability for S. cerevisiae yeast cells were obtained during slow cooling for all cryoprotective mediums. For the first time, high cryoprotective properties of sodium alginate solution, were shown. \u0000Obtained results are enable to recommend the sodium alginate as a carrier for cryopreserved immobilized cells when using it in biotechnological processing for biologically active substances production.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131948352","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":"NITRO CELLULOSE POWDER CHARGES OF LONG SERVICE LIFE: PROBLEMS AND THEIR POSSIBLE SOLUTIONS","authors":"D. Baulin","doi":"10.20998/2078-5364.2021.4.04","DOIUrl":"https://doi.org/10.20998/2078-5364.2021.4.04","url":null,"abstract":"One of the components of the problem of Ukraine's national security is the loading of warehouses with a variety of ammunition with an expired guaranteed storage period. \u0000The experience of storing ammunition shows that during long-term storage, propylene powder used in ammunition is capable of spontaneously undergoing various physical and chemical transformations, which negatively affects the ballistic characteristics of ammunition. The lack of ammunition production in Ukraine has led to the fact that ammunition is currently in operation, the storage time of which reaches 25-30 years or more. \u0000This article analyzes publications devoted to scientific research related to the problems of ballistic stability of propellants. \u0000A number of factors are presented that affect the physicochemical stability of powder charges during their long-term operation. \u0000The generalizing data on changes in the main ballistic characteristics of ammunition at different periods of their storage are presented. \u0000It is assumed that one of the ways to improve the ballistic and energy characteristics of ammunition with long service lives can be the regeneration of nitrocellulose powder charges. It is shown that at present there are no methods for the regeneration of propellant charges of long service life. However, there are encouraging data on the treatment of propellants with hydrogen peroxide, on the basis of which a technology can be developed for the complete or partial restoration of the ballistic and energy characteristics of the propellant charge. \u0000It is presented that the predictive assessment of changes in the characteristics of ammunition with long service lives does not correspond to their real indicators. \u0000It has been determined that the problem of nitrocellulose propellants of long service life is complex and, on the basis of its solution, theoretical and methodological foundations of the regeneration of nitrocellulose propellant charges can be developed to homologate the ballistic and energy characteristics of ammunition.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134409319","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":"OBTAINING DIESEL FUEL WITH IMPROVED PROPERTIES","authors":"A. Trotsenko, A. Grigorov, V. Nazarov","doi":"10.20998/2078-5364.2021.4.08","DOIUrl":"https://doi.org/10.20998/2078-5364.2021.4.08","url":null,"abstract":"It is known that one of the ways to increase the level of operational properties of diesel fuels is the injection of special components – additives – into their composition. Today this way is a quite rational and economically feasible for Ukraine, especially in the absence of high-quality oil raw materials for the production of fuels, which in turn leads to a significant dependence on imports. \u0000The range of additives used in diesel fuels is very diverse, which makes it difficult to select a balanced package, especially considering their effectiveness and compatibility with each other. This procedure can be a bit simplified by adding poly-functional additives to diesel fuel, the use of which is devoted to a lot of periodical literature. \u0000Based on the relevance of the direction of scientific research related to improving the properties of diesel fuel, which is produced at the enterprises of the oil refining industry in Ukraine, we proposed to use a substance belonging to the class of aromatic diazocompounds and having polyfunctional properties in the composition of diesel fuels. Thus, this additive was added to a straight-run diesel fraction (240–350 °C) in an amount of up to 1.0%, followed by a study of the properties of the resulting mixture. Studies have shown that the additive significantly improves low-temperature properties (by -10 °C), contributes to an increase in fuel density and viscosity, and additionally gives diesel fuel a stable color (from yellow to orange). Consequently, it can be used in the composition of commercial diesel fuels with improved performance properties.","PeriodicalId":334981,"journal":{"name":"Integrated Technologies and Energy Saving","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116401670","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}