scholarly journals Ecological Aspects of Implementing Prospective Propulsion Schemes of Short and Medium Haul Aircrafts

2015 ◽  
Vol 4 (2) ◽  
pp. 67-72 ◽  
Author(s):  
Самойлов ◽  
M. Samoylov ◽  
Бурцев ◽  
S. Burtsev ◽  
Симаков ◽  
...  

The influence of the circuitry of the hybrid power plant short and medium haul aircraft on their fuel efficiency and environmental characteristics have been investigated. Directions of improvement of traditional patterns of power plants of aircraft on the example of PD-14 engine were analyzed. It has been shown that the use of turbojet engines and traditional schemes operating on aviation kerosene, will not allow to fulfill the demands made by the International Civil Aviation Organization (ICAO) to perspective plane 2025–2035. The analysis of the three schemes hybrid propulsion systems has been performed. It has been shown that using the presented hybrid propulsion systems of alternative fuels can reduce CO2 emissions by 19% to 20% compared with conventional turbojet engines, which run on kerosene TS-1. It has been shown that this fuel efficiency is increased by 2–3%, and the total mass of the power plant increases of 6 to 16%.


2019 ◽  
Vol 8 (4) ◽  
pp. 9449-9456

This paper proposes the reliability index of wind-solar hybrid power plants using the expected energy not supplied method. The location of this research is wind-solar hybrid power plants Pantai Baru, Bantul, Special Region of Yogyakarta, Indonesia. The method to determine the reliability of the power plant is the expected energy not supplied (EENS) method. This analysis used hybrid plant operational data in 2018. The results of the analysis have been done on the Pantai Baru hybrid power plant about reliability for electric power systems with EENS. The results of this study can be concluded that based on the load duration curve, loads have a load more than the operating kW of the system that is 99 kW. In contrast, the total power contained in the Pantai Baru hybrid power plant is 90 kW. This fact makes the system forced to release the load. The reliability index of the power system in the initial conditions, it produces an EENS value in 2018, resulting in a total value of 2,512% or 449 kW. The EENS value still does not meet the standards set by the National Electricity Market (NEM), which is <0.002% per year. Based on this data, it can be said that the reliability of the New Coast hybrid power generation system in 2018 is in the unreliable category.



10.12737/1575 ◽  
2013 ◽  
Vol 2 (5) ◽  
pp. 25-30 ◽  
Author(s):  
Николайкин ◽  
N. Nikolaykin

The modern directions of environment protection against aircraft influence in the light of International Civil Aviation Organization (IСAO) decisions have been analyzed. Modern priorities in this activity have been revealed, tendencies of development related to international and civil aviation, as well as evolution of ecological requirements to aircraft, civil aviation’s fuel efficiency increase directions and alternative fuels, problems of aviation noise impact on habitat have been considered.



2019 ◽  
Vol 113 ◽  
pp. 02012
Author(s):  
Martina Hohloch ◽  
Melanie Herbst ◽  
Anna Marcellan ◽  
Timo Lingstädt ◽  
Thomas Krummrein ◽  
...  

A hybrid power plant consisting of a micro gas turbine (MGT) and a solid oxide fuel cell (SOFC) is a promising technology to reach the demands for future power plants. DLR aims to set up a MGT/SOFC hybrid power plant demonstrator based on a 3 kWel MTT EnerTwin micro gas turbine and an SOFC module with an electrical power output of 30 kWel from Sunfire. For the detailed investigation of the subsystems under hybrid conditions two separate test rigs are set up, one in which the MGT is connected to an emulator of the SOFC and vice versa. The paper introduces the set-up and the functionalities of the MGT based test rig. The special features are highlighted and the possibilities of the cyber physical system for emulation of a hybrid system are explained.



2020 ◽  
Vol 2020 ◽  
pp. 1-16 ◽  
Author(s):  
Ramadoni Syahputra ◽  
Indah Soesanti

This paper proposes the planning of hybrid micro-hydro and solar photovoltaic system for rural areas of Central Java, Indonesia. The Indonesian government has paid great attention to the development of renewable energy sources, especially solar and hydropower. One area that has a high potential for both types of energy is the province of Central Java, located on the island of Java, Indonesia. In this research, we conduct field research to determine the ideal capacity of solar and micro-hydro hybrid power plants, electricity load analysis, and optimal design of hybrid power plants. Data on the potential of micro-hydro plants are obtained by direct measurement on the Ancol Bligo irrigation channel located in Bligo village, Ngluwar district, Magelang regency, Central Java province, Indonesia. Data on solar power potential were obtained from NASA’s database for solar radiation in the Central Java region. Hydropower potential data include channel length, debit, heads, and power potential in irrigation channels originating from rivers. These data are used to design an optimal hybrid power plant. The method used to obtain the optimal design of a hybrid power plant system is based on the analysis of capital costs, grid sales, cost of energy, and net present cost. Based on the parameters of the analysis, the composition of the optimal generator for the on-grid scheme to the distribution network can be determined. The results showed that hybrid power plants were able to meet the needs of electrical energy in the villages around the power plant and that the excess energy could be sold to national electricity providers.



Author(s):  
А.И. Епихин ◽  
А.В. Игнатенко

Обеспечение удаленного управления судовой энергетической установкой автономного судна, контроль параметров процессов и оценка их технического состояния с использованием искусственных нейро-нечетких сетей для морского автономного надводного судна (МАНС). Создание цифровых двойников и прогнозирование технического состояния, моделирование сценариев изменения технического состояния судовых технических средств. Современные тенденции и перспективы научных изысканий в области управления судовыми энергетическими установками и системами, их обслуживающими, применительно к концепции автономного судна и безэкипажного (беспилотного) судоходства, а также выполнения ужесточающихся требований международного морского законодательства по предотвращению загрязнения атмосферы с судов. Использование альтернативных топлив и переход на электроснабжение с берега при стоянке таких судов в портах, на оборудованных рейдовых стоянках, а также использование «чистой электроэнергии» для электроснабжения объектов водного транспорта и шельфовой инфраструктуры. Providing remote control of the ship's power plant of an autonomous ship, monitoring process parameters and assessing their technical condition using artificial neuro-fuzzy networks for a marine autonomous surface vessel (MANS). Creation of digital twins and forecasting of the technical condition, modeling of scenarios of changes in the technical condition of ship technical equipment. Modern trends and prospects of ship power plants and their elements in relation to the concept of an autonomous vessel and crewless (pilotless) navigation, incorporating meeting the potential newer requirements / restrictions of international maritime legislation regarding airborne pollutions from ships. The use of alternative fuels and the alternative to marine power technology from the shore when such vessels are moored in ports, at equipped roadsteads, as well as the use of “clean electricity” to supply power to marine transport facilities and offshore infrastructure.



Author(s):  
Michael Schneider ◽  
Jens Dickhoff ◽  
Karsten Kusterer ◽  
Wilfried Visser

Abstract In the recent decades, civil aviation was growing 4.7% per annum. In order to reduce emissions promoting the global warming process, alternative propulsion systems are needed. Full-electric propulsion systems in aviation might have the potential for emission-free flights using renewable energy. However, several research efforts indicate electric propulsion only seems feasible for small aircraft. Especially due to the low energy density of batteries compared to fossil fuels. For this reason, hybrid propulsion systems came into focus, combining the benefits of all-electric and conventional propulsion system concepts. It is also considered as bridging technology, system test and basis for component development — and therewith paves the way towards CO2 free aviation. In the ‘HyFly’ project (supported by the German Luftfahrtforschungsprogramm LuFo V-3), the potential of a hybrid electric concept for a short/mid-range 19 PAX aircraft is assessed — not only on system but also on single component basis. In a recent study, the propulsion architecture and the operating mode of the gas turbine and the electric components have been defined [1]. In this paper, the advantages of the hybrid propulsion architecture and a qualitative assessment of component life are presented. Methods for life time prediction for the aircraft engine, the electric motor, the reluctance generator and the battery are discussed. The impact of turbine inlet temperature on life consumption is analyzed. The life cycle of the aircraft engine and the electric components including gradual component deterioration and consequent performance degradation is simulated by using an in-house gas turbine simulation tool (GTPsim). Therefore, various effects on electric propulsion system can be predicted for the entire drivetrain system in less than one hour.



Author(s):  
Anggara Trisna Nugraha ◽  
Dadang Priyambodo

The need for electrical energy in Indonesia continues to increase every year. In line with the increase in the electrification ratio to 100% in 2050, the demand for electrical energy is projected to reach 7 times, namely 1,611 TWh. To meet electricity needs, the government has created a 35 GW program, but one of the largest contributors to power generation fuel is coal with a share of 58% or around 50 GW which is estimated to be exhausted within the next 68 years. For this reason, innovations are needed in terms of fulfilling electrical energy by utilizing renewable energy potential, one of which is hydro energy, which is 45,379 MW from a total resource of 75,091 MW. Therefore, from this potential, innovations related to renewable energy have been created, namely the Hybrid Portable Underwater Turbine Hydro and Solar Energy hybrid power plant. This power plant uses an undersea current as a propulsion which is hybridized with solar power to increase the production of electrical energy. This power plant has the advantage that there is an Underwater turbine design that is resistant to underwater flow and a water flow direction to increase the work efficiency of the underwater turbine. From the test results, the portable Underwater turbine hydro produces 950 W in a day. Solar panels produce 65.6 Watts a day. The total hybrid that can be produced is 1.02 kW a day. In its implementation it can supply loads of up to 900 (VA) such as lamps, fans, TV, etc. This hybrid power plant can be a solution to help meet electricity needs in the area around Dusun Dongol, Sidoarjo through alternative electrical energy innovations.



2020 ◽  

The article presents the results of the development of the concept of integrated modeling of a hybrid propulsion system of a vehicle. During the development of a complex of simulation and physical models of components, a development method was used from simpler models to more complex ones, which made it possible to create a flexible modular structure of the hybrid power plant model and made it possible to change or supplement the model during the development of the entire system, when some components were unavailable and were replaced. simulation models. To quickly change the composition of the system in the hardware and software complex without changing the entire model, unified interfaces and relationships between component models were provided. Keywords energy efficiency, ecology, car hybrid powerplant, simulation



Author(s):  
V.A. Markov

The paper emphasizes the relevance of research aimed at further improving the systems of automatic control and regulation of heat and power plants, mainly plants with reciprocating internal combustion engines. The study assessed the current level of the development of these systems, and analyzed the prospects of their use as mobile and stationary heat and power plants. These plants are widely used in various sectors of the economy --- energy, transport, agriculture, so it appears important to describe the main directions of further improvement of these plants and their automatic control and regulation systems. The purpose of the research was to further increase the power indicators of heat and power plants, improve their fuel efficiency and exhaust gas toxicity, and enhance the dynamic qualities of internal combustion engines. In our study, we also examined the main directions of improving the fuel supply and air supply systems of engines, their work process, adaptation of engines to work on various alternative types of fuel. Findings of research show that it is necessary to expand the functional capabilities of control and regulation systems, implement integrated adaptive control of a heat and power plant and its systems, use electronic microprocessor devices in the structure of regulators, enhance the multi-parameter efficiency of the operation of a heat and power plant and its elements, taking into account the whole set of parameters of this plant The paper was based on the materials of the reports of the all-Russian scientific and technical conference n.a. Professor V.I. Krutov (29.01.2020)



2019 ◽  
Vol 6 (2) ◽  
pp. 1
Author(s):  
Gordon Arifin Sinaga ◽  
I Made Mataram ◽  
Tjok Gede Indra Partha

Renewable energy is energy that comes from natural processes that will not be exhausted and sustainable if managed properly. In its use, to maintain the continuity of the availability of electrical energy maximally, it is necessary to combine several types of power plants that are connected to the grid or better known as hybrid grid connected power systems. This research took place at Villa Peruna Saba, Gianyar - Bali which uses a hybrid grid connected power system that combines photovoltaics and generators connected to the grid utilty in supplying electricity loads. The analysis is carried out on the characteristics of the average load, the contribution of each electric power source and the workings of the hybrid grid connected hybrid power plant system. From the analysis, it is known that the contribution of power derived from solar power plants is 561.27 kW or 22.41% in April 2018 and 510.72 kW or 20.71% in May 2018.



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