Skip to main content

Proton exchange membrane fuel cells (PEMFC) are good candidates for portable energy sources with a fast response to load changes, while being compact as a result of their capability to provide a high power density. Hydrogen constitutes the fuel for the PEMFC and can be obtained in situ to avoid transportation and safety problems. An efficient method to produce hydrogen is by methanol steam reforming in a micro-reactor, an endothermic reaction for which the highest efficiency occurs between 250 degrees C and 300 degrees C. Different methods have been used to reach and maintain these temperatures, including electrical heaters and exothermic reactions. We propose to use solar energy to increase the efficiency of the micro-reactor while taking advantage of a free, renewable energy source. The micro-channels, where the water-methanol mixture flows, are insulated from the surroundings by a thin vacuum layer coated with a selective material. This coating has a high absorptance for short wavelength incoming radiation and low emmitance for infrared radiation, reducing the heat losses. By using these coated insulation layers, the fluid temperature in the microchannels is predicted to be higher than 250 degrees C. Hence, it is expected that the solar powered micro-reactor will produce hydrogen with a higher overall efficiency than the present reactors by taking advantage of the solar radiation.

Year of Publication
Number of Pages
ISBN Number
We are professional and reliable provider since we offer customers the most powerful and beautiful themes. Besides, we always catch the latest technology and adapt to follow world’s new trends to deliver the best themes to the market.

Contact info

We are the leaders in the building industries and factories. We're word wide. We never give up on the challenges.

Recent Posts