Temat: cogeneration - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Bench testing and simulation model of a cogeneration system with a stirling engine
Autorzy:: Chmielewski, A.
Gumiński, R.
Lubikowski, K.
Radkowski, S.
Szulim, P.
Powiązania:: https://bibliotekanauki.pl/articles/242327.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: Stirling engine
Alpha
Simulink
Sankey diagram
helium and nitrogen
cogeneration
Opis:: Cogeneration systems using a Stirling engine [2] are currently being developed and promoted by the European Union [1]. On the other hand, the EU climatic package obligates Polish energy producers to buy 100% CO2 emission rights from 2020 onwards. At that time, according to the experts a ton of CO2 could reach the price of 63.5 Euro. Attention is drawn to the fact that it is only then that nuclear power plants will become profitable, in the same way as wind power plants. This could result in substantial growth of energy prices, both for the economy and for households [3]. The paper presents the experimental research of a cogeneration system with a one-way Alpha type Stirling engine. The impact of the upper heat source and the type of working gas (helium and nitrogen) on the load capacity of the cogeneration system was studied. Based on a Sankey diagram, the power spread of the cogeneration system was analysed. On the basis of experimental research, a model was created of a cogeneration system consisting of the following submodels: Stirling engine of the second order, belt transmission, electric motor and an electrochemical battery. The Stirling engine was installed in a testbed, in the mechatronic lab at the Faculty of Automotive and Construction Machinery Engineering (SIMR) of Warsaw University of Technology. Furthermore, the impact of regenerator efficiency on the efficiency of the Stirling Engine was examined, which in turns impacts the efficiency of the entire cogeneration system.
Źródło:: Journal of KONES; 2013, 20, 3; 97-104
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Research and simulation work of TEG in cogeneration task of the exhaust system
Autorzy:: Chmielewski, A.
Lubikowski, K.
Radkowski, S.
Szczurowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/246212.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: cogeneration of energy
exhaust system
thermoelectric generator
Opis:: One of the main directions of development of power transmission systems in vehicles involves improvement of energy efficiency of combustion engines, especially reduction of the loss related to waste heat in cooling and exhaust systems. The traditional role of the exhaust system is to remove exhaust gases from a combustion engine and muffle the noise created during the engine’s operation. Relevant distribution of temperatures along the entire length of the exhaust system is a very important element in such a complex structure. The examples could be the particulate solids filter or the converter which have to reach a relevant temperature to operate properly while the temperature’s growth is simultaneously restricted due to the limitations associated with the materials used. The research was conducted while using the ECOTEC 1.8 litre engine from Opel, the X18XE model. The engine was installed in a tested, in the mechatronic lab at the Faculty of Automotive and Construction Machinery Engineering (SIMR) of Warsaw University of Technology. The paper reviews the energy efficiency of TEG depending on deferent parameters of gas stream an weather conditions. This is original value of this paper. The results of the experiment are presented in the last section of the article.
Źródło:: Journal of KONES; 2013, 20, 2; 41-47
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The issue of energy co-generation using thermoelectric generators
Zagadnienie kogeneracji energii wykorzystującej generatory termoelektryczne
Autorzy:: Chmielewski, A.
Lubikowski, K.
Radkowski, S.
Wikary, M.
Mączak, J.
Powiązania:: https://bibliotekanauki.pl/articles/1363975.pdf
Data publikacji:: 2015
Wydawca:: Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:: cogeneration of energy
thermoelectric generators
Seebeck effect
Stirling engine
kogeneracja energii
termoelektryczne generatory
zjawisko Seebecka
silnik Stirlinga
Opis:: The development of the renewable energy sources technologies and the energy policy emphasise the energy co-generation systems. In the automotive industry, investments are located in the development of heat pumps, Stirling engines, energy accumulators, gas turbines, piezo mats, suspensions and enfeeblements, linear motors, and other energy retrieval systems retrieving energy that is expelled in the process of the combustion of the fuel and air mixture in conventional combustion engines [1,2] and lost irretrievably. The energy co-generation systems increase efficiency in the use of the energy contained in the fuel and air mixture. Currently, there is a tendency of combination of the energy micro-cogeneration systems with other vehicle systems, e.g. motor control systems, motor power supply systems, safety systems, etc. [3-8]. One of such ways is the retrieval of heat energy thanks to thermoelectric generators (TEG) using the Seebeck effect.
Rozwój technologii odnawialnych źródeł energii i polityka energetyczna kładą nacisk na systemy kogeneracji energii. W przemyśle samochodowym inwestuje się w rozwój pomp cieplnych, silników Stirlinga, akumulatorów energii, turbin gazowych, mat, zawieszeń i wyciszeń piezoelektrycznych, silników liniowych oraz innych systemów odzyskiwania energii, która, wydalana w procesie spalania mieszanki paliwowo-powietrznej w konwencjonalnych silnikach spalinowych [1,2], jest bezpowrotnie tracona. Systemy kogeneracyjne zwiększają efektywność wykorzystania energii zawartej w mieszance paliwowo-powietrznej. Aktualnie istnieje tendencja do łączenia systemów mikrokogeneracji energii wraz z innymi systemami istniejącymi w pojeździe, np. systemami sterowania silnikiem, zasilania silnika, systemami bezpieczeństwa itp. [3-8]. Do jednego z takich sposobów należy odzysk energii cieplnej dzięki termoelektrycznym generatorom (TEG – z ang. thermoelectric generators) wykorzystującym zjawisko Seebecka.
Źródło:: Archiwum Motoryzacji; 2015, 67, 1; 3-10
1234-754X
2084-476X
Pojawia się w:: Archiwum Motoryzacji
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Energy scavenging in a vehicles exhaust system
Autorzy:: Lubikowski, K.
Radkowski, S.
Szczurowski, K.
Wikary, M.
Powiązania:: https://bibliotekanauki.pl/articles/246763.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: cogeneration of energy
exhaust system
thermoelectric generator
Opis:: Present- day development of power transmission systems, especially the ones based on combustion engines, is trying to cope with the issue of improving the energy efficiency of energy processing systems. One of the directions is to use the techniques of thermal energy recovery from an engine's exhaust system. Vast part of the energy produced while burning the air- fuel mixture is lost in the cooling and exhaust systems. Research in this area was conducted by numerous teams, both abroad and in Poland, while focusing on use of Peltirea cells. The results of their research demonstrated small efficiency of these cells. In this paper, the authors have focused on modifications of the exhaust system in order to improve heat exchange between the exhaust system's elements and TEG. The research was conducted while using the ECOTEC 1.8 litre engine from Opel, the X18XE model. The engine was installed in a testbed, in the mechatronic lab at the Faculty of Automotive and Construction Machinery Engineering (SIMR) of Warsaw University of Technology. Spartan HE923 radiators were installed on the cold end of the module. The paper presents the results of the research related to interworking of TEG's with the exhaust system's heat-generating elements of various shapes. The paper reviews the energy efficiency of TEG depending on diverse parameters of gas flow. A parallel system has been assumed (controlled stream and pressure of the flowing exhaust gases without any interference as regards the speed of the of combustion engine). The factor-related experiment accounts for the influence that the pressure and temperature difference, depending on the volume and discharge of exhaust fumes, have on the efficiency of TEG for the same temperature. The results of the experiment are presented in the last section of the article.
Źródło:: Journal of KONES; 2012, 19, 3; 253-261
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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