DSpace Community: Колективні монографії іноземною мовою, які містять статті та розділиКолективні монографії іноземною мовою, які містять статті та розділиhttps://er.nau.edu.ua/handle/NAU/381942024-03-28T10:16:34Z2024-03-28T10:16:34ZEvaluation of jet engine operation parameters using conventional and alternative jet fuelsYakovlieva, AnnaBoichenko, SergiiLejda, Kazimierzhttps://er.nau.edu.ua/handle/NAU/405522019-11-07T17:33:20Z2019-01-01T00:00:00ZTitle: Evaluation of jet engine operation parameters using conventional and alternative jet fuels
Authors: Yakovlieva, Anna; Boichenko, Sergii; Lejda, Kazimierz
Abstract: Jet engine operation parameters using conventional and alternative
jet fuels, obtained by blending with plant oil bio-additives, during bench tests
were evaluated. Jet fuels were tested and compared in conditions of engine
operation. It was determined that using alternative jet fuels improves jet
engine thrust characteristics and reduces fuel flow. These provide more energy
efficient operation of jet engine. Using alternative jet fuels results in reduction
of gas temperature in the jet pipe. This contributes to durability of materials and
structure of the engine against high temperature, as well as reducing of NOx
emissions. The results of the study show that operational parameters of the jet
engine powered with new alternative jet fuels completely satisfy exploitation
norms set in specification for tested engine. Alternative jet fuels, proposed in
the study, may be used as a working body of the jet engine without a need of
making changes in its design.2019-01-01T00:00:00ZSelected aspects of providing the chemmotological reliability of the engineeringBoichenko, SergiiAksionov, OlexanderTopilnytskyi, PetroPushak, AndriiLejda, Kazimierzhttps://er.nau.edu.ua/handle/NAU/388252019-05-23T11:55:43Z2019-05-01T00:00:00ZTitle: Selected aspects of providing the chemmotological reliability of the engineering
Authors: Boichenko, Sergii; Aksionov, Olexander; Topilnytskyi, Petro; Pushak, Andrii; Lejda, Kazimierz
Abstract: Transport sector is an important component of the economy that have an impact on the development and prosperity of the population.
Rational use of fuels and lubricants, energy efficiency, environmental safety are included into the list of the most important problems of the modern world. Solving these problems determines in a great manner the sustainable development of the world economy and keeping comfort conditions for human being.
Efficiency, reliability of operation of vehicles, rational use of operational materials depend on their correct selection. According to its quality operational materials must conform to both the model and operating conditions of vehicles. The use of poor quality materials leads to a decrease in the durability and reliability of machinery and machine parts; the use of materials of higher quality than required causes unreasonable increase in costs.
The knowledge of machinery suggest not only the knowledge of construction, kinematic, dynamic, and temperature characteristics but also physico-chemical properties of constituent materials that are necessary for analyzing and forecasting of physico-chemical processes during use of a Fuels or a Lubricants. Thus, the efficiency and reliability of vehicles operation depends not only on their structural characteristics, but also on the optimal selection of Fuels and Lubricants, Technical Liquids and other Operational Materials.
Work professional activity of specialists dedicated to petroleum refinery, organizing of storage, transportation and distribution of products, assurance of correspondence between the properties of Fuels, Lubricants, Technical liquids and the conditions of operation of technology and engines aimed at obtaining maximum technical, economical, ecological and social effects is called usage of Fuels, Lubricants and Technical liquids.
To know Fuels, Lubricants and Technical liquids is to clearly understand the interconnection of quality parameters with physico-chemical and energy processes, occurring in the process of their use under specific conditions, and also the connection with their chemical and group composition.
The knowledge of technology suggest not only the knowledge of construction, kinematic, dynamic, and temperature characteristics but also physico-chemical properties of constituent materials that are necessary for analyzing and forecasting of physico-chemical processes during use of a Fuel or a Lubricant.
The study of the essence, regularity (tendens) and connections of phenomena and the processes of use of Fuels, Lubricants, Technical liquids in Aviation Technology with the help of special methodological tools is the base of Aviation Chemmotology.
Aviation Chemmotology is a part of Chemmotology that studies and solves the problems of ensuring the necessary quality and application requirements of Fuels and Lubricants used in Aviation Technology.
Chemmotological reliability is a reliability of technology depending on the Quality of Fuels and Lubricants (the ability of technology to maintain good reliability when operated with Fuels and Lubricants grades that are of a economically reasonable quality level).
This monograph as an intergative scientific work of many scholars is a striking example of the representation of these aspects and really illustrates the modern consolidated work of scientists and practitioners, trends in the development of scientific schools of different universities, different countries and science in general. Because, as is know, science does not have borders. Scientific achievements are global civilizational heritage.2019-05-01T00:00:00ZMeans of quality control of biofuels, their production and combustionZaporozhets, ArturIvanov, SerhiiSerhiienko, Romanhttps://er.nau.edu.ua/handle/NAU/382392020-05-04T10:41:31Z2019-01-01T00:00:00ZTitle: Means of quality control of biofuels, their production and combustion
Authors: Zaporozhets, Artur; Ivanov, Serhii; Serhiienko, Roman
Abstract: A device for measuring the heat capacity and heat of evaporation of moisture and organic liquids from inhomogeneous materials is presented, which implements the method of synchronous thermal analysis. The installation design and methods used in the study of biofuel samples are considered. The methods of calibration of calorimetric platforms using a reference transducer of heat flow are given. Methods and technical means for calorimetric analysis of the calorific value of biofuels are presented. A quasidifferential bomb calorimeter for measuring the specific heat of combustion of fuel samples is proposed, its structure, model, and technical characteristics are considered. A system for monitoring the quality of the combustion process in fuel systems, which is based on the change in the rotational speed of the blower fan according to the oxygen sensor signals, is proposed.; Представлено пристрій для вимірювання теплоємності і теплоти випаровування вологи та органічних рідин з неоднорідних матеріалів, який реалізує метод синхронного термічного аналізу. Розглядаються конструкція пристрою і методи, що використовуються під час дослідження зразків біопалива. Наведено методи калібрування калориметричних платформ з використанням еталонного перетворювача теплового потоку. Представлено методи і технічні засоби калориметричного аналізу теплоти згорання біопалива. Запропоновано квазідиференціальний бомбовий калориметр для вимірювання питомої теплоємності спалювання зразків палива, розглянуто його структуру, модель і технічні характеристики. Запропоновано систему контролю якості процесу горіння в паливних системах, яка базується на зміні швидкості обертання дуттєвого вентилятора за сигналами сенсора кисню.; Представлено устройство для измерения теплоемкости и теплоты испарения влаги и органических жидкостей из неоднородных материалов, которое реализует метод синхронного термического анализа. Рассматриваются конструкция устройства и методы, используемые при исследовании образцов биотоплива. Приведены методы калибровки калориметрических платформ с использованием эталонного преобразователя теплового потока. Представлены методы и технические средства для калориметрического анализа теплоты сгорания биотоплива. Предложен квазидифференциальный бомбовый калориметр для измерения удельной теплоемкости сжигания образцов топлива, рассмотрены его структура, модель и технические характеристики. Предложена система контроля качества процесса горения в топливных системах, которая базируется на изменении скорости вращения дутьевого вентилятора по сигналам сенсора кислорода.
Description: 1. Chernyak O. Energy Perspective 2030 for Ukraine in the Context of the EU integration / O. Chernyak, G. Kharlamova, A. Stavytskyy // Emerging Issues in the Global Economy, ed. by Mărginean S., Ogrean C., Orăștean R. – 2018. – P. 113–129. DOI: 10.1007/978-3-319-71876-7_10.
2. Ivanov S.O. The system for determining the heat of evaporation and the heat capacity of moist materials: dis. Cand. Tech Sciences: 05.11.04 / Ivanov Sergey. – K., 2017. – 179 p.
3. Theoretical and applied bases of economic, ecological and technological functioning of energy objects / [V. O. Artemchuk, T. R. Bilan, I. V. Blinov et al.]; eds. A. O. Zaporozhets, T. R. Bilan. – Kyiv, 2017. – 312 p.
4. Ivanov S.O. Non-identity compensation of heat exchange conditions of measuring cells of a differential calorimeter during the study of the heat of evaporation / S.O. Ivanov // Information systems, mechanics and management. – 2017 – №16. – P. 100–104. DOI: 10.20535 / 2219-3804162017100799.
5. Research of thermal characteristics of willow shoots by devict of synchronous thermal analysis / N.V. Dmytrenko, S.О. Ivanov, Yu.F. Snezhkin, L.V. Dekusha // Industrial Heat Engineering. – 2015. – Vol. 35. – №2. – P. 77–84. DOI: 10.31472/ihe.2.2015.09.
6. Serhiienko R. Methods of Quality Control of Energy Efficient Characteristics of Biofuels and its Combistion / R. Serhiienko, S. Ivanov, A. Zaporozhets // International Journal “NDT Days”. – 2018. – Vol. 1. – №2. – P. 222–227.
7. Analysis of the approximation of the results of measurements of a bomb calorimeter heat flux in nonstationary mode / V.P. Babak, A.O. Zaporozhets, A.O. Nazarenko, A.O. Redko // ScienceRise. – 2017. – T. 37. – № 8. – P. 24–32. DOI: 10.15587 / 2313-8416.2017.108935.
8. Research of the Energy Characteristics of Municipal Solid Waste in Cherkassy / [O. Sigal, Q. Boulanger, L. Vorobiov et al.]. // Journal of Engineering Sciences. – 2018. – Vol. 5. – №1. – P. 16–22. DOI: 10.21272/jes.2018.5(1).h3.
9. Provision of Diagnostic Systems for Energy Facilities / [V.P. Babak, S.V. Babak, M.V. Myslovych et al.]; ed by. V.P. Babak. – Kyiv, PH “Akademperiodyka”, 2018. – 134 p. DOI: 10.15407/akademperiodyka.353.134.
10. Zaporozhets A.O. Investigation of the stoichiometric mixture of "air-fuel" organic compounds. Part 2. Alcines, alkins / A.O. Zaporozhets // Knowledge-based technologies. – 2014. – No 4. – P. 393–399. DOI: 10.18372 / 2310-5461.22.6803.2019-01-01T00:00:00ZThe influence of oxygen concentration on the fire safety of aircrafts fuel systemsYefymenko, ValeriyKravchuk, TetianaKovshun, LidiyaAtamanenko, Natalyahttps://er.nau.edu.ua/handle/NAU/382382019-06-15T13:34:41Z2019-01-01T00:00:00ZTitle: The influence of oxygen concentration on the fire safety of aircrafts fuel systems
Authors: Yefymenko, Valeriy; Kravchuk, Tetiana; Kovshun, Lidiya; Atamanenko, Natalya
Abstract: The aim of the work is to provide fire-explosion safety and to improve performance indicators of the jet fuels quality.
The object of the study is the processes of air (oxygen) dissolving in fuels, determination of its concentration in the above fuel space of fuel tanks and creation of safe to ignite fuel-air mixtures. This problem is relevant due to the need to ensure the chemmotological reliability of aircrafts fuel systems.
The subject of the study is fire-explosion safety of jet fuels RT (Jet A-1) and its connection with the presence of dissolved gases and gases in the above fuel space in fuel tanks.
It has been determined the temperature limits of the formation of combustible fuel-air mixtures depending on the aircraft's flight altitude, temperature and changes in oxygen concentration in the abovefuel space.; Метою роботи є забезпечення пожаровзрывобезопасности та поліпшення експлуатаційних показників якості реактивних палив.
Об'єктом дослідження є процеси розчинення повітря (кисню) в паливах, визначення його концентрації в надпаливному просторі паливних баків повітряних суден та утворення безпечних до загоряння паливоповітряних сумішей. Ця проблема є актуальною з огляду необхідності забезпечення хіммотологічної надійності паливних систем авіаційної техніки.
Предметом дослідження є пожежовибухобезпечність реактивних палив РТ (Jet A-1) та її зв’язок з наявністю розчинених у них газів і газів, що знаходяться в надпаливному просторі паливних баків.
Визначені температурні межі утворення горючих паливно-повітряних сумішей залежно від висоти польоту повітряного судна, температури та зміни концентрації кисню в надпаливному просторі.; Целью работы является обеспечение пожаровзрывобезопасности и улучшения эксплуатационных показателей качества реактивных топлив.
Объектом исследования являются процессы растворения воздуха (кислорода) в топливах, определение его концентрации в надтопливном пространстве топливных баков воздушных судов и образование безопасных к возгоранию топливовоздушных смесей. Эта проблема является актуальной ввиду необходимости обеспечения химмотологической надежности топливных систем авиационной техники.
Предметом исследования является пожаровзрывобезопасность реактивных топлив РТ (Jet A-1) и её связь с наличием растворенных в них газов и газов, находящихся в надтопливном пространстве топливных баков.
Определены температурные пределы образования горючих топливно-воздушных смесей в зависимости от высоты полета воздушного судна, температуры и изменения концентрации кислорода в надтопливном пространстве.
Description: 1. Emission of oxygen dissolved in fuel at aircraft climb / [V. Iefymenko, E. Novoselov, A. Kustovska et al.]. // Aviation in the XХI-st century: the eight world congress (Kyiv, 10–12 October, 2018). – К.: NAU, 2018. – P. 5.
2. Results of 1/4-scale experiments, vapor simulant and liquid Jet A tests: Explosion Dynamics Laboratory Report / [J. E. Shepherd, J.C. Krok, J.J. Lee et al.]. – California Institute of Technology. – FM98-6. – California, July 1998.
3. Yefymenko V. V. Influence of processing of reactive fuels with neutral gases on their fire safety, thermal oxidation stability and cavitation properties: Ph. D. thesis in eng.: spec. 05.17.07 «Chemical technology of fuels and lubricants» / Iefymenko V. V. – К.:2007. – 172 p.
4. Aviation Chemmotology: Fuel for Aviation Engines. Theoretical and engineering basics of application: textbook / N. S. Kulik, A. F. Aksenov, L. S. Yanovsky, C. V. Boichenko. – К.: NAU, 2015. – 560 p.2019-01-01T00:00:00Z