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Presents the front cover or splash screen of the 2012 International Conference on Renewable Energy Research and Applications (ICRERA) proceedings record.
It is with great pleasure that we welcome you to the 1stInternational Conference on Renewable Energy Research and Applications (ICRERA) 2012 in Nagasaki, Japan.
A microwave discharge ion thruster of 5cm size was fabricated and its next concept improved in plasma ignition and sustention was reported. As we have already developed 10cm and 2cm size microwave discharge type ion thrusters, the development of 5cm one on the basis of the previous ones is carried out. It is sometimes difficult to generate plasma in it. Several magnetic configurations in the discharge...
Oxidative steam reforming of ethanol is an effective way to produce high yields of hydrogen. A novel series of pyrochlore-type metal oxide of La2Ce2−xNi0.5xO7−1.5x (x=0.1–0.9) was prepared and its catalytic performance was studied. All the materials were characterized by X-ray powder diffraction (PXRD), inductively coupled plasma atomic emission spectrometer (ICP-AES) and temperature-programmed reduction...
The paper describes a procedure for identification of single machine infinite bus system. Mathematical model of synchronous generator is identified using data obtained from monitoring system. To determine the model parameters of the synchronous generator, a procedure based on Kalman filter was applied. The identified model of the synchronous generator can be used for parameter setting of the voltage...
A monitoring method for solution plasma was developed using infrared spectroscopy in “in-situ” multiple internal reflection geometry (“in-situ” MIR-IRAS). We “in-situ” monitored the changes in chemical bonding configuration of solution with “in-situ” MIR-IRAS. The CH3 in the molecules of the solution was preferentially decomposed due to solution plasma generation.
Hydrogenation of Si(110) surface due to hydrogen plasma was investigated, using in-situ infrared spectroscopy in multiple internal reflection geometry (in-situ MIR-IRAS). The amorhpous layer was formed. Especially, the SiH2 components were finally formed in the amorphous layer. The formation of the SiH2 is performed with 0.5-order reaction, in a comparion with the hydrogen exposure time. It is suggested...
ELIIY Power Co., Ltd. (ELP) [1] has commercialized a high safe large format lithium ion cell using LiFePO4 as the cathode material. The cell shows discharge capacity of 50Ah at room temperature, and has passed safety standard test “S-Mark” certification by TÜV Rheinland Japan. The cell's safety and electrochemical performance is suitable for the large format energy storage system, e.g., HEMS, BEMS.
Regarding modeling of battery system, if the properties of unit cells comprising the system are different, overall battery system model based on a specific cell may cause an error due to the differences in cell properties. In this paper, the statistical method to minimize the error according to the deviation of properties of unit cells comprising the battery module is proposed. The simulation result...
To evaluate the effects of inflowing-high-energy electrons on the grid erosion, three-dimensional full-PIC analyses of ion engine were conducted. A comparison of the results of full-PIC results show that the inflowing high energy electrons expand the sheath region downstream and blurs the sheath edge. However, only a slight influence of the electrons on grid currents is observed.
The dc-dc LLC resonant converter can achieve complete soft switching operation in all power semiconductor devices. However, the single phase and interleaved LLC resonant converter required large size smoothing capacitor in the output terminal because the output current ripple of the LLC converter is higher than other isolated dc-dc converter. To solve the problem, the three phase dc-dc LLC resonant...
Higher efficiency performances, lower EMI/RFI noise, and low cost boost converter have been required in power conversion system for Electric Vehicle, Plug-in Hybrid Electric Vehicle. Recovery-less boost converter are satisfied all those demands, without active power switch. So far, recovery-less boost converter are proposed two method; with the auxiliary inductor type or the saturable inductor type...
In response to global environmental issues, higher efficiency and improved operational reliability are increasingly being requested for steam turbines, essential equipment for thermal power generation. Its material is stainless steel, which is difficult to cut because of high work-hardening trend and high resistance to heat. As its complex shape and high accuracy requirement, conventional methods...
The flow simulation of the membrane module of PRO, the following results obtained. 1. There is distorted flow in a module. 2. Amount of osmosis is different in a module. At the fresh water collects the amount of osmosis is rapidly decrease. 3. Amount of osmosis in hollow fiber area is about ten percent of the whole.
376 nm ultra-violet laser diode was used for crystallization of Si thin-film on glass substrate for thin-film solar cell application. Laser beam was focused on Si film with a dimension of 1.5 × 8µm and it is scanned over Si film with velocities of among 0.3 m/s to 5.2 m/s. From scanning electron microscopy (SEM) and Raman scattering spectroscopy (Raman), it is found that lateral crystallization was...
In this paper, a voltage clamp circuit consists of diode and transformer, which reduces the transient peak switch voltage of the class E amplifier with single dc power supply, is proposed. This clamp circuit clamps the output voltage of the class E amplifier when the amplitude of output voltage goes over the maximum permissible value. Simulation results showed that the proposed diode clamp circuit...
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