نتایج جستجو برای: liquid water content
تعداد نتایج: 1107154 فیلتر نتایج به سال:
Local Area Water Removal Analysis of a Proton Exchange Membrane Fuel Cell under Gas Purge Conditions
In this study, local area water content distribution under various gas purging conditions are experimentally analyzed for the first time. The local high frequency resistance (HFR) is measured using novel micro sensors. The results reveal that the liquid water removal rate in a membrane electrode assembly (MEA) is non-uniform. In the under-the-channel area, the removal of liquid water is governe...
[1] Arctic clouds simulated by the National Center for Atmospheric Research (NCAR) Community Atmospheric Model version 5 (CAM5) are evaluated with observations from the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Indirect and Semi-Direct Aerosol Campaign (ISDAC) and Mixed-Phase Arctic Cloud Experiment (M-PACE), which were conducted at its North Slope of Alaska site i...
The development of direct methanol fuel cells required the attention to the electrolyte. A good electrolyte should not only be ionic conductive but also be crossover resistant. Ionic liquids could be a promising electrolyte for fuel cells. Monitoring methanol was critical in several locations in a direct methanol fuel cell. Conductivity could be used to monitor the methanol content in ionic liq...
There were six cloud interception events at the Whiteface site (July 4-5, 7, 16, 17, 20 and 22) occurring at different times of the day. The events lasted anywhere from two to twelve hours. Samples were collected hourly, except when the liquid water content was extremely high, in which case samples were collected every half-hour. At Davis there were also six fog events (December 18, January 4-5...
Prediction of benzene transport in soil and volatilization from soil to the atmosphere is important for the preservation of human health and management of contaminated soils. The adequacy of a simple numerical model, assuming two-phase diffusion and equilibrium of liquid/solid adsorption, was investigated by experimental data of benzene concentration in a flux chamber (with headspace) where And...
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