Wszystkie pola: recovery system - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Energy recovery system for excavators with movable counterweight
Autorzy:: Gawlik, A.
Powiązania:: https://bibliotekanauki.pl/articles/243605.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: active counterweight
excavator
homothetic transformation
energy saving
Opis:: Due to the high fuel costs are developed the different types of energy saving systems that are supposed to increase the productivity of machines per each burned liter of fuel. Paper describes the concept of an active counterweight system designed for excavators. Suggested solution includes both the kinematical structure and the hydraulic system. The hydraulic system of active counterweight is connected with the boom standard hydraulic system. The counterweight mechanism is homothetic to working mechanism of the excavator. The homothetic transformation applies to kinematical structure and positions of the centres of gravity. The homothetic transformation provides to static unloading of boom cylinder by the mated counterweight cylinder. The aim of investigations is saving energy by machines which can use potential energy of movable counterweight. The research tests are performed for selected work cycle to determine the key parameters of hydraulic system, such as: cylinders velocity, working pressure, oil flow etc. Primary test results compare power consumption for standard and modification system during the same work cycle. The level of energy recovery is promising especially at lower velocities of boom mechanism cylinder. The energy saving for higher boom cylinder velocity will be possible after reduce of pressure drop in hydraulic circuit.
Źródło:: Journal of KONES; 2013, 20, 2; 113-120
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Heat recovery system in a future diesel particle filter
Autorzy:: Mitianiec, W.
Powiązania:: https://bibliotekanauki.pl/articles/245386.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
compression ignition engine
diesel particle filter
regeneration
Opis:: The main problem in conventional diesel engines and HCCI diesel is reduction of solid particles emitted to atmosphere. applying of particle filters requires special methods for their regeneration after some period of the engine work in a result of closing of substrate pores by soot. These methods require additional energy for combustion of soot (additional fuel or electric energy). The new method takes into account a self-regeneration of diesel particle filter by use of special heat recovery system. The paper shows an example of DPF self-regeneration. the exhaust temperature behind the turbine and catalytic converter is very low and particularly for HCCI engine the emission of particles is low in comparison to conventional diesel engines. for that case an additional energy is required for increase of gas temperature before DPF. the preliminary studies show a possibility of using the special design of DPF with heat recovery system. the paper shows the simulation results of such system and possibility of increasing the heat recovery ratio by change of geometry of DPF. the gas heat exchange formulas between dpf and the heat exchange module are partly included in the paper. the preliminary results of calculations shows the possibility of increase of exhaust gases in front of DPF about 20%, which enables a continuous regeneration of DPF. the work is carried out as part of the european project ipsy.
Źródło:: Journal of KONES; 2009, 16, 4; 333-342
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

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

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Skocz do pozycji: 4.

Tytuł:: Cechy idealnego układu odzysku energii
Ideal energy recovery system characteristic
Autorzy:: Zakrzewski, J.
Pietruszewski, R.
Powiązania:: https://bibliotekanauki.pl/articles/313006.pdf
Data publikacji:: 2017
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:: energia
odzysk energii
system odzysku energii
układ odzysku energii
odzysk energii samochodowej
energy recovery
car energy recovery
Opis:: W artykule omówiono podstawowe wymogi jakie powinien spełniać układ odzysku energii zainstalowany w pojeździe drogowym wraz z zestawieniem cech idealnego systemu oraz ich uzasadnieniem.
Paper covers a discussion on requirements for energy recovery system installed on a road vehicle, followed with a set of ideal characteristic with its justification.
Źródło:: Autobusy : technika, eksploatacja, systemy transportowe; 2017, 18, 6; 1302-1304, CD
1509-5878
2450-7725
Pojawia się w:: Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The development process of the national polish citizens recovery system
Autorzy:: Falandys, K.
Powiązania:: https://bibliotekanauki.pl/articles/347536.pdf
Data publikacji:: 2015
Wydawca:: Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:: recovering personnel
ISOPREP
Personnel Recovery
Opis:: This article is devoted to the issue of personnel recovery. The author discussed, among others, the proposed process of the development of the National Polish Citizens Recovery System and the proposed database model ISOPREP (Eng. Isolated Personnel Report).
Źródło:: Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki; 2015, 3; 5-20
1731-8157
Pojawia się w:: Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Test stands with energy recovery system for machines and hydraulic transmissions
Autorzy:: Zastempowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/334323.pdf
Data publikacji:: 2013
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:: testing of transmission
energy recovery
hydraulic brake
Opis:: This paper presents the systems enabling testing of pumps, motors and hydraulic transmissions with minimal loss of energy. The energy required to be produced during the load test of hydraulic machinery is recovered to a large extent. In energy recovery systems a pump and motor with pressure regulator have been used. The stands with hydraulic brake, designed for testing of machinery and transmissions, offer a possibility to perform accurate measurements. The whole energy required to load tested machinery is converted into heat on those stands. The new proposed stands, presented in the paper, do not have disadvantages occurring in the hitherto known systems. It was achieved due to application of self-adjustable units with built-in pressure regulators.
Źródło:: Journal of Research and Applications in Agricultural Engineering; 2013, 58, 2; 188-191
1642-686X
2719-423X
Pojawia się w:: Journal of Research and Applications in Agricultural Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Exergy analysis of the Szewalski cycle with a waste heat recovery system
Autorzy:: Kowalczyk, T.
Ziółkowski, P.
Badur, J.
Powiązania:: https://bibliotekanauki.pl/articles/240278.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Szewalski cycle
binary vapour cycle
exergy analysis
waste heat
idea Szewalskiego
analiza egzergii
ciepło odpadowe
Opis:: The conversion of a waste heat energy to electricity is now becoming one of the key points to improve the energy efficiency in a process engineering. However, large losses of a low-temperature thermal energy are also present in power engineering. One of such sources of waste heat in power plants are exhaust gases at the outlet of boilers. Through usage of a waste heat regeneration system it is possible to attain a heat rate of approximately 200 MW_th, under about 90°C, for a supercritical power block of 900 MW_el fuelled by a lignite. In the article, we propose to use the waste heat to improve thermal efficiency of the Szewalski binary vapour cycle. The Szewalski binary vapour cycle provides steam as the working fluid in a high temperature part of the cycle, while another fluid – organic working fluid – as the working substance substituting conventional steam over the temperature range represented by the low pressure steam expansion. In order to define in detail the efficiency of energy conversion at various stages of the proposed cycle the exergy analysis was performed. The steam cycle for reference conditions, the Szewalski binary vapour cycle as well as the Szewalski hierarchic vapour cycle cooperating with a system of waste heat recovery have been comprised.
Źródło:: Archives of Thermodynamics; 2015, 36, 3; 25-48
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Technical and legal determinants of energy conversion in electric vehicle equipped with energy recovery system
Autorzy:: Juda, Z.
Powiązania:: https://bibliotekanauki.pl/articles/247926.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
regenerative braking
energy conversion
Opis:: Regenerative braking in electric or hybrid driven vehicles is now commonly used feature. Development of technologies of electrical machines, secondary energy sources, power electronics and control systems allows for more efficient using of this attribute. Regenerative braking system converts the kinetic energy of moving vehicles on this form of energy that you can store in a secondary source of energy. The most common form of energy after conversion is electricity, easy to store in batteries or supercapacitors. There also are known systems with storage of mechanical energy (high-speed flywheels with composite rotors). Drive systems with optional regenerative braking should take into account a number of aspects influencing the process. It is very important to maintain the stability of the vehicle movement during braking. Another important aspect is the cooperation of regenerative braking system with conventional, mechanical brake system of the vehicle driven by a single axis. Sizing of the electrical machine (or machines) is associated with the needs of the propulsion of the vehicle, which limits the amount of absorbed energy in the initial stage of braking. Individual elements of the system energy conversion efficiency chain complexity affect the energetic results of this process. On the energy, efficiency of the process of braking energy recovery affects string conversion efficiency in the individual components of the system. Regenerative braking is the important factor, which could improve electric vehicle market chances, particularly in the city or neighbourhood personal transport. The article contains a description of the technical and legal circumstances of the process of regenerative braking and energy aspects of this process.
Źródło:: Journal of KONES; 2016, 23, 4; 193-199
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Gray Water Recovery System Model by Solar Photocatalysis with TiO2 Nanoparticles for Crop Irrigation
Autorzy:: Carbajal-Morán, Hipólito
Zárate-Quiñones, Rosa H.
Márquez-Camarena, Javier F.
Powiązania:: https://bibliotekanauki.pl/articles/1839657.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: polluted water
solar radiation
nanoparticles
photocatalysis
Opis:: The objective of the study was to establish the configuration of the system model to allow the effective recovery of gray water by solar photocatalysis with TiO2 nanoparticles for irrigation of crops. A programmable solar photoreactor based on an S7 1500 PLC and online measurement sensors were used as materials. The inductive method was used to analyze the samples and the deductive method to determine the water quality. The research design used was experimental based on the response surface methodology (MSR) with 20 experiments, 6 of which were central experiments and 6 were axial experiments; these experiments were carried out on sunny days. As a result of the research, a gray water recovery model was obtained, part of this being an electronic system with a programmable photocatalyst, which allowed the development of the experiments. It was concluded that with a solar UV index of 12.21, a dose of titanium dioxide (TiO2) nanoparticles 1.973 g/L and with an exposure period of 60.041 minutes of the solar photocatalyst to UV radiation on sunny days, gray water was recovered in 90% with a confidence level of 95% and a significance α = 0.05, which translates into excellent quality according to the water quality index established in Peru (ICA-PE).
Źródło:: Journal of Ecological Engineering; 2021, 22, 4; 78-87
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Symulacja możliwości odzysku energii w układzie hydraulicznym koparki
Simulation of energy recovery system in hydraulic excavator
Autorzy:: Chojnacki, M.
Sobczyk, A.
Walczak, P.
Powiązania:: https://bibliotekanauki.pl/articles/269860.pdf
Data publikacji:: 2014
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: odzysk energii
koparka hydrauliczna
modelowanie 3D
symulacja
energy recovery
hydraulic excavator
3D modelling
simulation
Opis:: Celem pracy było stworzenie modelu napędu układu roboczego wybranej koparki, na podstawie którego przeprowadzane były badania symulacyjne związane z odzyskiem energii w hydraulicznym układzie napędowym. W tym celu należało zbudować model 3D, odzwierciedlający wybrany rzeczywisty model koparki w dowolnym oprogramowaniu do modelowania 3D. Następnie powstały model 3D należało zaimplementować do oprogramowania SimulationX firmy ITI, w którym to został stworzony hydrauliczny układ sterowania powstałego modelu 3D. Podstawowym zagadnieniem było zbudowanie najprostszego hydraulicznego układu sterowania, który w kolejnych etapach był rozbudowywany o dodatkowe elementy w celu poprawienia sprawności energetycznej układu.
The objective of this study was to create a model of the selected excavator, from which will be carried out simulation studies associated with energy recovery in the hydraulic control system. To do this, a 3D model was built, which will be based on the actual excavator model in any program for 3D modelling. Then, the resulting 3D model was implemented to the ITI software, which is called SimulationX. In this program was created hydraulic control system of the resulting 3D model. The main issue is to build the simplest hydraulic control system that in the next stages will be expanded to include additional elements in order to improve the energy efficiency of the system.
Źródło:: Inżynieria Maszyn; 2014, R. 19, z. 2; 28-37
1426-708X
Pojawia się w:: Inżynieria Maszyn
Dostawca treści:: Biblioteka Nauki

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