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Zhi Li Wenju Wang Meng Ye Xuedong Liang 《International Journal of Hydrogen Energy》2021,46(35):18453-18465
Lack of hydrogen refueling stations (HRSs) has hindered the diffusion of hydrogen fuel cell vehicles (HFCVs) in the Chinese transport market. By combining the agent-based model (ABM) and the experience weighted attraction (EWA) learning algorithm, this paper explores the impact of government subsidy strategy for HRSs on the market diffusion of HFCVs. The actions of the parties (government, HRS planning department and consumers) and their interactions are taken into account. The new model suggests dynamic subsidy mode based on EWA algorithm yields better results than static subsidy mode: HFCV purchases, HRS construction effort, total number of HRSs and expected HRS planning department profits all outperform static data by around 27%. In addition, choosing an appropriate initial subsidy strategy can increase the sales of HFCVs by nearly 40%. Early investment from government to establish initial HRSs can also increase market diffusion efficiency by more than 76.7%. 相似文献
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An innovative concept for integrating a metal hydride storage electrode into a reversible proton exchange membrane (PEM) fuel cell is described and investigated experimentally. This new concept has the potential to increase roundtrip efficiency compared to the conventional hydrogen-based electrical energy storage system by eliminating the intermediate steps of hydrogen gas production, storage, and recovery. As only an inflow of water is needed in the charge mode, and air in discharge mode, the system is called a ‘proton flow battery’. A hydrogen storage electrode was fabricated from a novel composite metal hydride–nafion material, and found to have acceptably high proton and electron conductivities. Its hydrogen storage capacity was measured to be 0.6 wt% of hydrogen, although the amount of hydrogen recovered to run the device in fuel cell mode was much lower. These results provide initial confirmatory evidence that the proton flow battery concept is technically feasible, though additional research is still required to enhance both storage capacity and reversibility. 相似文献
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《International Journal of Hydrogen Energy》2021,46(60):30698-30717
As of January 2021, Japan had the world's largest hydrogen station network with merely 4600 hydrogen fuel-cell vehicles (HFCVs) on roads, as compared to the 9000 HFCVs in the US, with only one-third of the hydrogen refueling stations in Japan. To understand behavioral differences among Japanese adopters, we administered a survey, in cooperation with public and private sector stakeholders, involving 89 private HFCV adopters in the Aichi Prefectural region, which hosts the largest number of HFCVs and refueling stations in Japan. Results suggest that HFCV adopters have a higher socioeconomic status than non-adopters, are mostly male in their 50s and above, and have a higher interest in new vehicle fuel technology. HFCV adopters who leased and bought vehicles were similar in terms of socioeconomic status, with differences in attitudes toward governmental incentives. The lack of refueling stations and station business hours restrict HFCV adopters from continuing with this fuel technology. 相似文献
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以燃料电池为主要动力系统的汽车将是未来汽车发展的主要途径。以能量混合型为主体的串连式混合动力系统将燃料电池,直流逆变器,蓄电池和电机并联于母线上,能量将在这些部件中实现分配。为实现能量合理分配,本文首先以最小化燃料电池氢气消耗量和蓄电池SOC与目标SOC相差最小为目标函数,然后使用遗传算法对能量分配进行了优化并制成MAP图,最后对AD-VISOR汽车动力构型软件进行二次开发,使用优化MAP图对其进行了仿真,验证这种优化策略在应用上的可行性。 相似文献
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G. Psofogiannakis Y. Bourgault B. E. Conway M. Ternan 《Journal of Applied Electrochemistry》2006,36(1):115-130
A mathematical model was developed and used to predict the performance of direct propane phosphoric acid (PPAFC) fuel cells,
utilizing both Pt/C state-of the-art electrodes and older Pt black electrodes. It was found that the overpotential caused
by surface processes on the platinum catalyst in the anode is much greater than the potential losses caused by either ohmic
resistance or propane diffusion in gas-filled and liquid-filled pores. In one comparison, the anode overpotential (0.5 V)
was larger than the cathode overpotential (0.3 V) at a current density of 0.4 A cm−2 for Pt loadings 4 mg Pt cm−2. The need for sufficient water concentration at the anode, where water is a reactant, was indicated by the large effect of
H3PO4 concentration. In another comparison, the model predicted that at 0.2 A cm−2, modern carbon supported Pt catalysts would produce 0.35 V compared to 0.1 V for unsupported Pt black catalysts that were
used several decades ago, when the majority of the research on direct hydrocarbon fuel cells was performed. The propane anode
and oxygen cathode catalyst layers were modeled as agglomerates of spherical catalyst particles having their interior spaces
filled with liquid electrolyte and being surrounded by gas-filled pores. The Tafel equation was used to describe the electrochemical
reactions. The model incorporated gas and liquid-phase diffusion equations for the reactants in the anode and cathode and
ionic transport in the electrolyte. Experimental data were used for propane and oxygen diffusivities, and for their solubilities
in the electrolyte. The accuracy of the predicted electrical potentials and polarization curves were normally within ±0.02 V
of values reported in experimental investigations of temperature and electrolyte concentration. Polarization curves were predicted
as a function of temperature, pressure, electrolyte concentration, and Pt loading. A performance of 0.45 V at 0.5 A cm−2 was predicted at some conditions. 相似文献
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To enhance the conversion efficiency and electrical reliability of the low-voltage fuel-cell (FC) power generation system, this paper proposes a modular single-phase grid-tie inverter system equipped with a power management and remote monitoring interface. In this system, each single power module is composed of three single-stage quasi-resonant (QR) flyback current-source inverters that are connected in parallel, and all the power modules are connected in parallel to achieve flexible power scaling and load sharing. The proposed grid-tie inverter system possesses a power management unit (PMU) and can be integrated with a home energy management system (HEMS). An experiment was conducted to verify the feasibility of the proposed concept, in which five power modules were assembled to form a 1-kW high-efficiency grid-tie inverter system, which was modulated through the PMU. The results showed satisfactory load-sharing characteristics between the parallel-connected power modules. The peak efficiency for each power module and the overall power generation system are about 94.5 and 90%, respectively. The proposed system exhibits flexible power scaling, load sharing, and high reliability. 相似文献