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A two dimensional, across the channel, isothermal, two-phase flow model for proton exchange membrane fuel cells (PEMFCs) is developed to investigate the interaction of dry Nafion® ionomer volume fraction (LMdry) and cathode relative humidity (RHc) in PEMFCs. The agglomerate model is used to...
Persistent link: https://www.econbiz.de/10011116027
Effect of iron promoter on the microstructures of CuMnZnO catalysts was investigated by N2 physical adsorption (BET), X-ray diffraction (XRD), and temperature-programmed reduction of hydrogen (H2-TPR). Higher alcohols synthesis (HAS) was performed in a fixed bed reactor. The characterization...
Persistent link: https://www.econbiz.de/10010702491
Air-source transcritical CO2 heat pump systems have found attractive applications in automobile air conditioning, regional heating and commercial water heating systems. The coefficient of performance (COP) of such systems is affected by several operational variables, such as ambient...
Persistent link: https://www.econbiz.de/10011263349
Recently, energy production in China fell behind energy consumption. This poses important challenges for the rapidly growing Chinese economy. As a consequence, the causal relationship between energy consumption and GDP is an important empirical issue. This paper examines Granger causality...
Persistent link: https://www.econbiz.de/10011040831
We present results of a major survey of Chinese opinion leaders conducted from March to April 2009, supported by EU-UK-China near zero emissions coal (NZEC) initiative. Respondents were drawn from 27 provinces and regions using an online survey with follow-up face-to-face interviews. A total of...
Persistent link: https://www.econbiz.de/10008913545