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    Wyświetlanie 1-3 z 3
    Tytuł:
    A Hydrolysis System Design and Analysis for Vehicles with Microprocessor Based and PWM Controlled Card
    Autorzy:
    Sarikaya, Y.
    Apaydin, H.
    Kıtış, Ş.
    Powiązania:
    https://bibliotekanauki.pl/articles/1401978.pdf
    Data publikacji:
    2015-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    88.05.Rt
    88.30.E-
    Opis:
    A hydrolysis system is designed by pulse width modulation controlled card, powered by hydrogen gas, contained of 24 pcs which were 11×11×0.5 cm³ sized, made of 316L stainless steel, 6 pcs anode, 6 pcs cathode, 12 pcs neutral and contained of 12 pcs which were 0.8×0.7×0.03 cm³ sized, made of resistant caoutchouc. 1 liter of pure water and 120 g KOH were used for hydrolysis system solution. As a result of hydrolysis 4 l/min hydrogen has appeared. This gas is directly connected to the fuel cell at vehicles. In this way the risks are removed that arise during compression and fuel savings are achieved. Pulse width modulation control card is made with microprocessor. Hydrolysis system is powered by 12 V DC 1.5i GLS in 1995, 1495 cm³/91.2 cui, 65 kW/88 PS/87 hp (DIN) 5 speed manual power train vehicle used for test drive. Test drive was conducted on 100 km and results were 10 A at 1000-1500 rpm, 20 A at 1500-3000 rpm, 30 A and over at 3000 and over rpm. So that 35% saving in fuel consumption was measured. This system will be employable water heater at the next tests.
    Źródło:
    Acta Physica Polonica A; 2015, 128, 2B; B-211-B-212
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical Analysis of Metal-Cylinder-Based Microwave Plasma Module
    Autorzy:
    Sobański, M.
    Jasiński, M.
    Mizeraczyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1366115.pdf
    Data publikacji:
    2014-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    88.80.hp
    84.40.-x
    52.35.Hr
    84.40.Dc
    02.70.Dh
    88.30.E-
    52.65.-y
    52.50.Dg
    11.55.-m
    52.40.Fd
    84.40.Az
    Opis:
    We present optimization of energy transfer in the waveguide-supplied metal-cylinder-based microwave plasma module with an inner cylindrical quartz tube. The construction of microwave plasma module is based on a WR 340 waveguide standard. Presented microwave plasma module operates at atmospheric pressure and frequency of 2.45 GHz. There is a reduced height section waveguide in microwave plasma module which provides local increase of the electric field in the plasma region. Microwave plasma module is terminated with a movable plunger which plays the role of the tuning element. Tuning characteristics of microwave plasma module are defined as the dependence of the $P_{R}$/$P_{I}$ on the position $l_{s}$ of the movable plunger, where $P_{R}$ and $P_{I}$ are the microwave power reflected and power incident, respectively. The powers $P_{R}$ and $P_{I}$ are measured in the input plane of microwave plasma module. The purpose of the presented optimization is to achieve $P_{R}$ lower than 5% of $P_{I}$ in widest range of position of movable plunger $l_{s}$. We used Comsol Multiphysics software to make numerical analysis which allows to optimize the parameters of microwave plasma module. Results of numerical analysis show that $P_{R}$/$P_{I}$ is lower than 0.05 in a wide range of movable plunger position $l_{s}$.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 6; 1309-1311
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    H₂ Interaction with rm C₂H₂TM (TM = Sc, Ti, V) Complex Using Quantum Chemical Methods
    Autorzy:
    Tavhare, P.
    Wadnerkar, N.
    Kalamse, V.
    Chaudhari, Ajay
    Powiązania:
    https://bibliotekanauki.pl/articles/1398991.pdf
    Data publikacji:
    2016-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    88.30.R-
    31.15.A-
    31.15.E-
    Opis:
    This work reports a comparative study of hydrogen uptake capacity of early transition metal atom (Sc, Ti and V) attached to light acetylene (C₂H₂) substrate. Using density functional theory and second order Møller-Plesset method, we predict that maximum of five, five and four hydrogen molecules will be adsorbed on C₂H₂Sc, C₂H₂Ti and C₂H₂V complex, respectively, with respective gravimetric hydrogen uptake capacity of 12.43, 12, and 9.48 wt%. All the interactions between hydrogen molecules and organometallic complex are found to be attractive. The highest occupied molecular orbital-lowest unoccupied molecular orbital gap shows that the maximum H₂ adsorbed complexes are kinetically stable. The average binding energies per H₂ molecule for these complexes are within the ideal range for hydrogen storage at ambient conditions. Even after maximum hydrogen molecules adsorption on C₂H₂TM complexes, transition metal atoms remain strongly bound to the C₂H₂ substrate. We have obtained temperature and pressure range over which H₂ adsorption on these three complexes is energetically favorable using the Gibbs free energy corrected H₂ adsorption energy.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 6; 1257-1262
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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