Power and Autonomous equipment最新文献

{"title":"Research of influence of thermal loadings on reliability of gas-diesel engines of transport and technological machines","authors":"N. Sevryugina, A. Apatenko","doi":"10.32464/2618-8716-2019-2-3-121-128","DOIUrl":"https://doi.org/10.32464/2618-8716-2019-2-3-121-128","url":null,"abstract":"Introduction: the factors determining the development trends of the machine-building industry on the example of modernization of the internal combustion engine are considered. The evaluation of the effectiveness of cooperation between manufacturers and the scientific potential of leading scientists in the development of designs of gas-diesel engines. The requirement of time of increase of ecology of internal combustion engines is proved, the reasons braking mass introduction of gas-diesel engines for transport and technological cars are revealed. The parameter of influence on the thermal load of the piston group in gaseous fuel is allocated. The estimation of constructive perfection of development of system of cooling of the piston of the engine is given. The effects of increased temperature on individual parts of the piston in the form of scrapes, chips, causing failure of the internal combustion engine as a whole are shown. The influence of engine oil quality on the engine operation is revealed. It is proposed to Supplement the design of the internal combustion engine with an oil level control device, developed an algorite and a software product for calculating the residual life of the engine oil on key parameters, with the establishment of the term of their replacement.Methods: the study is based on the analysis of the works of leading domestic and foreign scientists in the field of improving the design of power equipment. The theoretical and methodological basis of the study was the system approach, methods of mathematical analysis, reliability theory, analytical and statistical processing of results.Results and discussion: the theoretical justification for the increased thermal load of piston in a gas-diesel engine, justifies the addition of the construction device control engine oil level and consideration of the resource and replacement intervals for the parameters of the actual physical and chemical condition, using the database presented in the software product.Conclusion: operation of gas-diesel engines requires from the operator more strict control over the temperature regime of the engine, the condition of the engine oil and the efficiency of the engine oil, the proposed solutions will allow to assess the quality of the engine oil in real time and to carry out its replacement according to the actual condition, which will ensure.","PeriodicalId":293702,"journal":{"name":"Power and Autonomous equipment","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122496449","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":"Development of a technology for the manufacturing of parts/components of an internal combustion engine involving additive manufacturing methods","authors":"K. A. Kolganov, I. V. Mikryukov, А. S. Markov","doi":"10.32464/2618-8716-2019-2-3-166-184","DOIUrl":"https://doi.org/10.32464/2618-8716-2019-2-3-166-184","url":null,"abstract":"Introduction: the article considers a strategic objective consisting in reduction of the Russian companies’ dependence on highly sought-after imported power engineering equipment, including internal combustion engines used as part of auxiliary power units. In the article, the co-authors propose to integrate additive manufacturing methods into technologies used to produce internal combustion engines, their parts and components, which are temporarily or permanently impossible to import. The co-authors have proven the feasibility of advanced additive technologies in respect of casting molds and castings designated for internal combustion engines. An alloy of cast iron featuring an advanced chemical composition was developed. It enables the use of complex shape castings free from any non-metallic inclusions to produce engine parts and components; these castings demonstrate higher values of strength and wear resistance, they are a must for an internal combustion engine operating in severe conditions. The co-authors demonstrate the casting mold production process using ExOne’s S-MAX 3D printer.Methods: the study is based on the analysis of strengths, weaknesses and peculiarities of established casting methods, with account for faster production cycles and a higher quality of final products.Results and discussion: in the article, the co-authors analyze the proposed technology used to manufacture castings for “a block of cylindersˮ and “a head of the block of cylindersˮ.Conclusion: the newly developed technology for production of parts/assemblies of an internal combustion engine, including an advanced alloy having a new chemical composition, enables manufacturers to make high quality parts/ assemblies for an internal combustion engine in the most economical and productive way.","PeriodicalId":293702,"journal":{"name":"Power and Autonomous equipment","volume":"68 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124840583","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":"Cost-effective use of autonomous power sources","authors":"А. В. Шелгунов","doi":"10.32464/2618-8716-2019-2-1-50-57","DOIUrl":"https://doi.org/10.32464/2618-8716-2019-2-1-50-57","url":null,"abstract":"Introduction: the chapter “Introduction” contains information on the economic benefits of building your own sources of heat and electricity. Methods: the chapter “Methods” presents natural gas as the main fuel resource of the Russian Federation. In this regard, the expediency of the use of gas piston and gas turbine installations is emphasized. It is also noted that the gas piston unit (GPU) has the highest efficiency. In confirmation of this statement is a brief calculation of the efficiency of this installation. Results and discussions: this chapter discusses the effectiveness of the use of a gas piston cogeneration plant on the example of a company engaged in the processing of recycled metal. Based on the electricity consumption graph, it shows the uneven use of energy during the day. In accordance with the data obtained, the average load of the GPU and its capacity are determined. Based on the available source data, the calculation of the cost of maintaining the GPU and the production of electrical and thermal energy. Also in the chapter “Results and Discussions” it is emphasized that in developing the prozhect, it is necessary to involve the design organization, which will make a complete survey of the obzhect, study the annual energy consumption graphs, determine the necessary equipment and the volume of construction and installation work. At the same time, this chapter focuses on the fact that additional savings are provided by attracting leasing equipment purchase schemes. Conclusion: in the chapter “Conclusions” it is noted that the relevance and efficiency of the autonomous power supply additionally provides not only financial benefits, but also allows, in a shorter time, to provide obzhects with energy, to increase capacity in addition to the existing ones and to avoid unpredictable energy suppliers tariffs.","PeriodicalId":293702,"journal":{"name":"Power and Autonomous equipment","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127417620","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":"Methods of criteria optimization of the choice of means of mechanization of construction works","authors":"N. Sevryugina","doi":"10.32464/2618-8716-2018-1-2-90-100","DOIUrl":"https://doi.org/10.32464/2618-8716-2018-1-2-90-100","url":null,"abstract":"Subject of research: criteria optimization of technological processes of construction works in solving problems of ter­ritorial innovation in settlements with different building density. Purpose : to substantiate the universality of the criterion approach in terms of cost effectiveness for construction works for various purposes on the example of assessing the technological and energy efficiency of the choice of complex mechanization. Materials and methods: theory of large systems, queueing theory, Wald, savage, Hurwitz, Laplace methods, math­ematical analysis. Results: it is proposed to apply a generalized cost indicator as an optimization criterion. The mechanism of complex mechanization of the choice of technical means of providing is accepted key at technological implementation of con­struction projects. The flexibility of the proposed approach in varying the factors of influence, conventionally represent­ing the energy, resource and other characteristics of mechanization. The efficiency of criterion optimization methods in solving problems under conditions of complete uncertainty is proved. Conclusions: the methods of the coordinated analytical and computational model for the selection of optimal energy and functional efficiency sets of mechanization in the implementation of projects of territorial innovation in settlements with different building density are proposed","PeriodicalId":293702,"journal":{"name":"Power and Autonomous equipment","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134051968","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":"Main problems of import subsumption in domestic engineering, applicable to small-power electric generator installations","authors":"A. V. Shelgunov","doi":"10.32464/2618-8716-2018-1-1-46-51","DOIUrl":"https://doi.org/10.32464/2618-8716-2018-1-1-46-51","url":null,"abstract":"Subject: the subject of the study are low-power generator sets with a power of up to 30 kW.Materials and methods: in this paper, the main domestic legislative documents regulating the requirements for products. An assessment is made of the current state of Russian engine building.Results: the detailed analysis of the modern domestic market of power generating units with a capacity of up to 30 kW is made, the main problems in the field of domestic production of  electric power generators in the range up to 30 kW are revealed, and the prospects for import substitution of gasoline and diesel engines are noted.Conclusions: almost complete absence of the market of domestic low-power generating sets is established, insufficient measures taken to support domestic producers are noted, measures are  proposed for the development of domestic production of power units in the range of up to 30 kW.","PeriodicalId":293702,"journal":{"name":"Power and Autonomous equipment","volume":"32 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114091369","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":"Modernization of power settings dry cargo and tank vessels","authors":"O. Batygin","doi":"10.32464/2618-8716-2018-1-1-28-34","DOIUrl":"https://doi.org/10.32464/2618-8716-2018-1-1-28-34","url":null,"abstract":"The current problem of the need to modernize the Russian fleet and, in particular, the power plants of ships, is caused by the decommissioning the most of the dry cargo and bulk  carriers that are in using at this moment. Over time, most of these boards have ceased to  be suitable for navigation and can not be repaired, and modern shipyards and shipyards are  unable  to use and service new ships designed for the domestic fleet. In view of this, there is a discrepancy between the number of required boards and the volume of orders from  shipbuilders. The new brand of a foreign manufacturer's engines using on dry cargo and bulk ships of the previous generation significantly reduces the operating costs and repairing  diesel engine’s costs, and also increases their service life. The comparison of the aggregates  used at this moment and the model under consideration is made and a conclusion is made  about the expediency of using the proposed engine for the purpose the Russian  shipbuilding’s and ship repair’s long-term development. Subject: the study’s subject is the possibility of using foreign ships’ dry-cargo and tanker vessels for the modernization and improvement of the sides of the selected type.Materials and methods: in the work’s course is a comparative analysis of several types of diesel engines, possible for installation on the sides of the Volga-Don and Volgoneft, was carried out.Results: as a result of the work, a comparative table was developed for the characteristics of the diesel engine’s types under consideration, and the efficiency of using the considered brand’s foreign aggregates was revealed.Conclusions: the use of Yachai YC6CL diesel engines as powerplants on board dry cargo and liquid ships is advisable, because of their undeniable advantages in comparison with domestic units and economic feasibility.","PeriodicalId":293702,"journal":{"name":"Power and Autonomous equipment","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128205486","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}