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Tytuł:
Improving spark-ignited engines efficiency by heat energy recovery system
Autorzy:
Sutkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/132997.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
heat recovery system
turbo-compound
system odzysku ciepła
Opis:
The current trends in regulations changes focus more and more on emissions reduction. Earlier environment protection mechanisms covering emissions limits of particulates, nitrogen oxides, sulphur oxides and carbon monoxide were recently extended also to cover carbon dioxide emissions. One way to reduce carbon dioxide emission is the improvement of the efficiency of a powertrain system or main driver efficiency. This paper explains main limitations for efficiency improvement when conventional methods are used. The effective heat energy recovery system principles and its technical specification are described including its control principles. System was initially tested in the engine laboratory and experience from the laboratory tests is included in the paper. After successful and promising laboratory tests the solution was transferred to commercial operation which covered already period of more than 2 years. Statistics and operational data from commercial operation is shown with relevant examples of various operational modes. At the end of the paper simple feasibility study is shown. Alternative applications with basic evaluation of their feasibility and efficiency improvement potential are included in this paper as well.
Źródło:
Combustion Engines; 2015, 54, 2; 64-67
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conceptual Design and Performance Analysis of an Exhaust Gas Waste Heat Recovery System for a 10000TEU Container Ship
Autorzy:
Ma, Zheshu
Yang, Dong
Guo, Qiang
Powiązania:
https://bibliotekanauki.pl/articles/259008.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
exergy efficiency
marine diesel engine
thermal efficiency
waste heat recovery system
Opis:
According to operation characteristics of the main engine 9K98ME-C7, a combined turbines-exhaust gas waste heat recovery system is proposed to recover waste heat and increase system energy efficiency. Thermodynamic models based on the first thermodynamic law and the second thermodynamic law are formulated. The superheated steam yield, the total electric power yield, the first thermodynamic law efficiency, the exergy efficiency at different exhaust gas boiler working pressure, and the variation of the exergy efficiency under different feed water temperature and different steam turbine back pressure are analyzed. Thermodynamic results indicate that the most appropriate exhaust gas boiler pressure is 0.8MPa for studied main engine and the total thermal efficiency with combined turbines arrangement has climbed up to 53.8% from 48.5%.
Źródło:
Polish Maritime Research; 2012, 2; 31-38
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and application of a parachute deployment mechanism for sounding rockets based on commonly available and affordable components
Projekt i zastosowanie mechanizmu wyzwalania spadochronów dla rakiet sondujących opartego na ogólnodostępnych i przystępnych cenowo elementach
Autorzy:
Jasztal, Michał
Kłosiński, Artur
Powiązania:
https://bibliotekanauki.pl/articles/38922652.pdf
Data publikacji:
2024
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
sounding rocket
parachute
recovery system
ballistic deployment
rakieta sondująca
spadochron
system odzysku
uruchomienie balistyczne
Opis:
Sounding rockets must be equipped with a proper recovery system enabling the safe return of all rocket modules to the ground. This requirement is achieved by a parachute recovery system triggered by various types of deployment mechanisms. The paper presents the process of designing and implementing a low-cost parachute deployment mechanism for use in sounding rockets. The design of the mechanism is based on commercially available CO2 cartridges, electric igniter and the original housing structure made using 3D printing technology. As a result of a number of experimental tests, the design details of the device were improved. Finally, successful verification tests were carried out on the operation of the developed parachute deployment mechanism on the finished sounding rocket structure.
Rakiety sondujące muszą być wyposażone w odpowiedni system odzyskiwania, umożliwiający bezpieczny powrót wszystkich modułów rakietowych na ziemię. Wymóg ten jest spełniany przez spadochronowe systemy odzyskiwania uruchamiane przez różnego rodzaju mechanizmy. W artykule przedstawiono proces projektowania i implementacji taniego mechanizmu wyrzucania spadochronów do użytku w rakietach sondujących. Projekt mechanizmu opiera się na dostępnych w handlu nabojach CO2, zapłonnikach elektrycznych i oryginalnej konstrukcji obudowy wykonanej w technologii druku 3D. W wyniku szeregu testów eksperymentalnych usprawniono szczegóły konstrukcji urządzenia. Ostatecznie, przeprowadzono pomyślne testy weryfikacyjne działania opracowanego mechanizmu wyrzucania spadochronu na gotowej konstrukcji rakiety sondującej.
Źródło:
Journal of KONBiN; 2024, 54, 1; 21-31
1895-8281
2083-4608
Pojawia się w:
Journal of KONBiN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic reliability assessment of a complex recovery system using fault tree, fuzzy inference and discrete event simulation
Autorzy:
Nobakhti, Abolghasem
Raissi, Sadigh
Damghani, Kaveh Khalili
Soltani, Roya
Powiązania:
https://bibliotekanauki.pl/articles/2038031.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
dynamic reliability assessment
Fault Tree Analysis (FTA)
Mamdani Fuzzy Inference Method
discrete event simulation
flare gas recovery system
Opis:
Any failure on the recovery system will cause a lot of environmental damage as well as energy loss. Hereof two types of alternatives; fast opening valve system (FOVS) and seal drum system (SDS) may be installed. The focus of this article is on the decision stage to choose the most preferred option in terms of reliability assessment. The major challenge in the research problem is on changing the pressure and temperature during operational cycles, which significantly affect the reliability. In addition, the lack of historical data complicates the reliability assessment method. Hence, we proposed a hybrid approach using fault tree analysis (FTA) and the Mamdani fuzzy inference to estimate reliability response as a function of a few frequently operating pressure and temperature. Also, discrete-event simulation helped us to evaluate the system reliability at different operating conditions. The comparisons reveals that the FOVs outperforms on average of 22.4% than the SDS and it is recommended for putting into practice for purchasing.
Źródło:
Eksploatacja i Niezawodność; 2021, 23, 4; 593-604
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Verification of the effects of the secondary heat recovery from ventilation air in an animal house for the fattening of broiler chickens
Autorzy:
Adamovsky, R.
Adamovsky, D.
Kara, J.
Neuberger, P.
Powiązania:
https://bibliotekanauki.pl/articles/61735.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
verification
secondary heat recovery
ventilation
air
animal house
fattening
broiler chicken
heat exchanger
gravitation thermal pipe
exchanger efficiency
thermal balance
specific energy consumption
energy consumption
heat recovery system
Opis:
This paper presents results of the verification of a heat exchanger composed of gravitation thermal pipes installed in a broiler chicken feeding facility. The objective of the study was to verify the possibility of the application of a power management system including a heat recovery system in a heavy-duty environment of a broiler chicken fattening facility and to specify effects of the system upon the specific consumption of energy for space heating and ventilation of the animal house. The calculation of the thermal balance of the animal house documents that the power management system that includes a heat recovery exchanger unit may reduce the thermal capacity of external sources of heat in the animal house by 26.5% even when subject to extreme conditions and at the atmospheric temperature of -12°C and the age of chickens being 1 day. The results of the metering and calculations of the efficiency have proven that the heat exchanger reaches the operational efficiency of 10–47% and thermal efficiency of 20–80% even during the most demanding operational first twenty days of the breeding cycle of broiler chickens. The specific consumption of energy for space heating and ventilation related to 1 kg of the live weight of chicken in the animal house facility A provided with a heat recovery exchanger unit at the average atmospheric temperature during the cycle being 4.3°C amounted to 278.5 Wh. In the animal house B as not provided with the heat recovery exchanger units hosting the same number of chickens and provided with the same process and thermal loss due heat transmission through peripheral structures being one half compared to the animal house A, the specific consumption of energy per 1 kg of the live weight of chicken was 420.5 Wh.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2008, 06
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of waste heat recovery systems on energy efficiency improvement of a heavy-duty diesel engine
Autorzy:
Ma, Z.
Chen, H.
Zhang, Y.
Powiązania:
https://bibliotekanauki.pl/articles/240819.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency design index
energy efficiency operational indicator
waste heat recovery system
performance analysis
reduction factor
wskaźnik efektywności energetycznej
wskaźniki eksploatacyjny efektywności energetycznej
system odzysku ciepła odpadowego
analiza wydajności
współczynnik redukcyjny
Opis:
The increase of ship’s energy utilization efficiency and the reduction of greenhouse gas emissions have been high lightened in recent years and have become an increasingly important subject for ship designers and owners. The International Maritime Organization (IMO) is seeking measures to reduce the CO2 emissions from ships, and their proposed energy efficiency design index (EEDI) and energy efficiency operational indicator (EEOI) aim at ensuring that future vessels will be more efficient. Waste heat recovery can be employed not only to improve energy utilization efficiency but also to reduce greenhouse gas emissions. In this paper, a typical conceptual large container ship employing a low speed marine diesel engine as the main propulsion machinery is introduced and three possible types of waste heat recovery systems are designed. To calculate the EEDI and EEOI of the given large container ship, two software packages are developed. From the viewpoint of operation and maintenance, lowering the ship speed and improving container load rate can greatly reduce EEOI and further reduce total fuel consumption. Although the large container ship itself can reach the IMO requirements of EEDI at the first stage with a reduction factor 10% under the reference line value, the proposed waste heat recovery systems can improve the ship EEDI reduction factor to 20% under the reference line value.
Źródło:
Archives of Thermodynamics; 2017, 38, 3; 63-75
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parallel operation of a steam turbo-generator set and hydroelectric sets in an island system formed for the National Power System recovery after catastrophic failure
Praca równoległa turbozespołu parowego i hydrozespołów w układzie wyspowym tworzonym w warunkach odbudowy Krajowego Systemu Elektroenergetycznego po awarii katastrofalnej
Autorzy:
Grządzielski, I. A.
Sroka, K.
Kurzyński, A.
Kaczmarek, M.
Radsak, D.
Powiązania:
https://bibliotekanauki.pl/articles/397172.pdf
Data publikacji:
2017
Wydawca:
ENERGA
Tematy:
catastrophic failure
power system recovery
island formation
parallel operation
awaria katastrofalna
odbudowa systemu elektroenergetycznego
tworzenie układu wyspowego
praca równoległa
Opis:
The basic scenario of the power system recovery after catastrophic failure is to start the thermal power units that have been shut-down in an emergency by supplying voltage and starting power from self-starting hydroelectric power plants. The consequence of implementing such a plan is the formation of a local island system powered by the hydro plant units in parallel with a turboset of the started thermal power plant. The paper presents the results of measurements recorded in a system test of starting a 264 MW unit at the Turów Power Plant with input from Dychów hydro electric Plant. In particular, the ability to synchronize the unit started at Turów with the hydro sets at Dychów loaded with auxiliaries and pumps was assessed.
Podczas odbudowy systemu elektroenergetycznego, po wystąpieniu awarii katastrofalnej podstawowym scenariuszem jest uruchomienie bloków elektrowni cieplnych, które zostały odstawione awaryjnie, przez podanie napięcia i mocy rozruchowej z samostartujących elektrowni wodnych. Konsekwencją realizacji takiego planu jest tworzenie lokalnego układu wyspowego, w którym źródłem mocy elektrycznej będą równolegle pracujące hydrozespoły elektrowni wodnej i turbozespół uruchomionej elektrowni cieplnej. W referacie przedstawione zostaną wyniki pomiarów zarejestrowane w trakcie próby systemowej uruchomienia bloku energetycznego o mocy 264 MW w Elektrowni Turów z Elektrowni Wodnej Dychów. W szczególności ocenie poddane zostaną możliwości synchronizacji uruchomionego bloku w Elektrowni Turów z hydrogeneratorami EW Dychów, obciążonymi potrzebami własnymi jednostek wytwórczych i pompami w EW Dychów.
Źródło:
Acta Energetica; 2017, 3; 69-76
2300-3022
Pojawia się w:
Acta Energetica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing of „MAMUT” the evacuation & technical recovery wheeled vehicle
Autorzy:
Simiński, P.
Powiązania:
https://bibliotekanauki.pl/articles/244461.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
evacuation
technical rescue
recovery vehicle
driving system
Opis:
This paper provides characteristics of the evacuation and technical rescue heavy vehicles. Heavy tactical evacuation and technical rescue vehicles are built on the chassis of tactical vehicles with high loading capacity, generally with8x8 driving system. In each analysed case, the vehicles are one of the family members of the tactical heavy-duty vehicles. Evacuation equipment of such vehicles is as follows: main winch, arm or towing device, and lifting equipment. A domestically manufactured vehicle, developed under the project No. 356/BO/1, was presented. The testing process that such type of vehicles, including the above mentioned, are subject to have been discussed herein. Revision of parameters received and as specified in the requirements and relevant standards enforces an adequate scope of testing. In the case of the MAMUT vehicle, the following requirements have been checked: structural design, engine, driving system, cab, main winch, auxiliary winch, winch for self-recovery, hydraulic crane, hydraulic hoisting and towing equipment, power generator, electrical system, safety, ergonomics and technical aesthetics, specialist equipment, secret camouflage, and transportability.
Źródło:
Journal of KONES; 2011, 18, 1; 555-564
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis of Recovery Schemes for Distributed Computing Based on Ideal Ring Bundles
Autorzy:
Riznyk, O.
Vynnychuk, R.
Powiązania:
https://bibliotekanauki.pl/articles/410732.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
cluster
distributed system
Golomb ruler
ideal ring bundle
recovery scheme
Opis:
Clusters and distributed systems allow for error tolerance and high performance through shared use of the load. When all computers work, we would like to distribute the load equally among computers. When one or more computers are broken, the load on these computers should be redistributed to other computers in the cluster. Redistribution determines the recovery scheme. The recovery plan should keep the load as optimal as when even the most unfavorable combinations of computers are turned off, that is, we want to optimize the behavior of the worst case. In this work, we find new regeneration schemes based on so-called IRB and ideal ring loops and synthesize the corresponding combinatorial structures. They are optimal for many cases of recovery schemes.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2019, 8, 1; 33-38
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Controlling of train’s interior heating system for maximum energy efficiency
Autorzy:
Bušs, Dāvis
Eiduks, Jānis
Powiązania:
https://bibliotekanauki.pl/articles/375095.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
hybrid heating system
waste heat recovery
hot air heating
hybrydowy system grzewczy
odzysk ciepła odpadowego
ogrzewanie gorącym powietrzem
Opis:
Heating systems in diesel multiple unit (DMU) trains often use additional mechanical and/or electrical auxiliary power, increasing fuel consumption, while waste heat is available from the diesel engine. Delivery of waste heat for heating of multiple carriages is analysed as realized in DR1 and D1 series trains, in light of the current standards of passenger comfort and in-depth testing of DR1B trains. A new hybrid hot air and electrical heating system and its control algorithm is reviewed for modernized DR1AC trains of Latvian railways, capable of extracting waste heat from three different sources and supplemented by two additional sources in case of shortage, for full conformance to EN 14750-1 standard. Results of factory testing are included.
Źródło:
Transport Problems; 2019, 14, 3; 121-134
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exergy-based control strategy in a dwelling ventilation system with heat recovery
Oparta na egzergi strategia sterowania systemem wentylacji mieszkań z odzyskiem ciepła
Autorzy:
Voloshchuk, Volodymyr
Polishchuk, Mariya
Powiązania:
https://bibliotekanauki.pl/articles/407846.pdf
Data publikacji:
2020
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
ventilation system
exergy analysis
control
heat recovery
exergy saving
system wentylacji
analiza egzergii
kontrola
odzysk ciepła
oszczędność egzergii
Opis:
The paper presents energy and exergy analysis of a typical dwelling ventilation system with heat recovery for Ukrainian climatic conditions using a quasi-steady state approach over 24-hour time-steps. Evaluation of such systems on the base of the first law of thermodynamics demonstrates that heat recovery is beneficial for the whole variety of operational modes. Such methodology identifies as a thermodynamic inefficiency only energy losses to the surroundings with the exhaust air. The exergy-based analysis can detect additional inefficiencies due to irreversibilities within the components of the system. As a result the exergetic investigations show that for the ventilation systems there are operating conditions for which heat recovery increases exergy of fuel expended to provide the ventilation air compared to cases without bringing any recovery of heat and additional power consumption to drive the air flow by the fans. For the specified system, in case of switching ventilation unit to the operation mode of lower values of spent fuel exergy it is possible to provide annual saving of the primary energy sources from 5 to 15%.
W pracy przedstawiono analizę energetyczną i egzergetyczną typowego systemu wentylacji mieszkań z odzyskiem ciepła dla ukraińskich warunków klimatycznych z zastosowaniem podejścia quasi-stabilnego w 24-godzinnych krokach czasowych. Ocena takich systemów w oparciu o pierwsze prawo termodynamiki wykazuje, że odzysk ciepła jest korzystny dla całego szeregu trybów pracy. Taka metodologia identyfikuje jako nieefektywne termodynamicznie tylko straty energii do otoczenia wraz z powietrzem wylotowym. Analiza egzergetyczna może wykryć dodatkowe nieefektywności wynikające z nieodwracalności elementów systemu. W rezultacie badania egzergetyczne wykazują, że w systemach wentylacyjnych występują warunki pracy, dla których odzysk ciepła zwiększa egzergię paliwa zużytego do dostarczenia powietrza wentylacyjnego w porównaniu do przypadków, w których nie występuje żaden odzysk ciepła i dodatkowe zużycie energii elektrycznej do napędzania przepływu powietrza przez wentylatory. Dla określonego systemu, w przypadku przełączenia urządzenia wentylacyjnego na tryb pracy o niższych wartościach egzergii zużytego paliwa możliwe jest zapewnienie rocznych oszczędności pierwotnych źródeł energii od 5 do 15%.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2020, 10, 2; 44-47
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
State of the Art in the End-of-Life Vehicle Recycling
Autorzy:
Lenort, Radim
Staš, David
Wicher, Pavel
Straka, Martin
Powiązania:
https://bibliotekanauki.pl/articles/2069903.pdf
Data publikacji:
2021
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
waste management
reuse
recovery
recycling
end-of-life vehicle
ELV
recycling network
recycling system
disassembly
Opis:
Growing ecological awareness in society and legal regulations aimed at reducing the negative impact of used products on the environment means that waste management begins to play a significant role in the modern world. Therefore, it is necessary to conduct research towards the organization and implementation of waste management. It has been noticed that an important link in the economy is the recycling of used products. Thus, numerous studies are undertaken in the direction of organization, improvement, automation and computerization of the product and material recycling process. The article presents the results of literature research in terms of the implementation of the end-of-life vehicle recycling process.
Źródło:
Rocznik Ochrona Środowiska; 2021, 23; 902--913
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alignment of the heat recovery potential with the local area heat demand for selected industrial entities in the city of Gliwice
Autorzy:
Banasik, Aleksandra
Kostowski, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/41185413.pdf
Data publikacji:
2023
Wydawca:
Politechnika Warszawska, Instytut Techniki Cieplnej
Tematy:
waste heat
heat recovery
district heating system
residential sector
energy management
strata ciepła
odzysk ciepła
system ciepłowniczy
sektor mieszkaniowy
zarządzanie energią
Opis:
Waste heat plays a significant role in obtaining the 4th and 5th generation of District Heating (DH) System in cities. This article presents the possibilities of integrating selected waste heat emitters into DH, with the objective of meeting the demand for heat for the selected residential area (approx. 4000 inhabitants) in the city of Gliwice (180 000 inhabitants). The total heating demand of the studied area was estimated at 19 800 GJ including both space heating and domestic hot water. The maximum thermal power was estimated at approx. 2.45 MW. The demand was calculated on the basis of registered metering values for individual buildings which were processed and summarized due to the lack of collective meters for the district. A detailed data classification, correction and completion procedure was elaborated to deal with non-uniform and low-quality data registration. Two industrial objects with waste heat generation were examined to be integrated with the local DH network. The waste heat generation potential equals 9.0 MW for plant #1 and 0.9 MW for plant #2. Apart from the constant generation declared by the industrial entities, realistic profiles including possible shaft-work and maintenance periods were created. It has been shown that the total heat demand for selected residential areas can be covered by integrating waste heat into the current DH network. Depending on the waste heat generation profile, the local area heat demand can be covered entirely or to a large degree (coverage factor ranges from 72 to 100%). The waste heat utilization factor ranges from 6.3 to 8.3%. To manage the remaining waste heat potential, it is required to build additional district heating pipelines and nodes connecting to the existing network to receive an additional 7.45 MW thermal power. The potential of waste heat recovery is significant at the scale of a medium sized city: integrating two large industrial emitters allows up to 13% decarbonization of heats production in the local district heating plan.
Źródło:
Journal of Power Technologies; 2023, 103, 2; 104-117
1425-1353
Pojawia się w:
Journal of Power Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The potential of thermoelectric energy harvesting in vehicles equipped with ICE
Autorzy:
Buchalik, Ryszard
Rogozinski, Krzysztof
Nowak, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/133341.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
combustion engine
heat recovery
thermoelectric module
heat transfer
exhaust system
silnik spalinowy
odzysk ciepła
moduł termoelektryczny
wymiana ciepła
układ wydechowy
Opis:
The paper deals with an issue of waste heat recovery in a selected configuration of an internal combustion engine. A possibility of using thermoelectric cells (currently available on the market) for production of electricity with heat extracted from the exhaust gas was considered. The calculations were made using specialized software. Features and design assumptions of the heat recovery system were presented and their influence on parameters of the entire system was investigated (efficiency of the internal combustion engine, power, etc.). An assessment of the applicability of the energy recovery system based on thermoelectric effects and characteristic of the proposed configuration was performed. Some issues that require further research have been highlighted.
Źródło:
Combustion Engines; 2019, 58, 4; 70-74
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modernization of the VSVEM-1140 electro-mechatronic system for testing theasynchronous motors
Autorzy:
Beshta, Oleksandr, senior
Khudolii, Serhii
Djur, Roman
Peltek, Illia
Powiązania:
https://bibliotekanauki.pl/articles/27324352.pdf
Data publikacji:
2023
Wydawca:
Instytut Techniki Górniczej KOMAG
Tematy:
testing and charging stations
high-voltage alternating current electric machines
energy recovery in braking modes
electro-mechatronic system
thermal diagnostics of electric machines
system elektromechaniczny
maszyny elektryczne
diagnostyka
Opis:
The article is devoted to the description of practical experience in testing the alternating current electric machines. The results of combining thecapabilities of digital systems for collecting and processing information with a powerful electromechanical system are presented. Itis the combination of two systems of different purposes that enables creating the state-of-the art diagnostic installations combined into one electro-mechatronic system. Practical results of electric machine tests contain clear explanations of fundamental principles and provide acomprehensive assessment of the conditionof electric machines. They use methods of direct charging the electric machines with the possibility of recuperation of electric energy during tests. Thermal state of electrical machine nodes is monitoredusing the thermal forecasting technologies. Both the methods for various types of tests and means for their implementation are described in detail. This article is intended for engineers involved in designing, manufacturing and testing the electric machines.
Źródło:
Mining Machines; 2023, 41, 4; 240--247
2719-3306
Pojawia się w:
Mining Machines
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 18

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