Papers – Page 535 – TechConnect Briefs

Expermental Study of Hydrogen in Internal Combustion Engines

Albayrak Çeper B., Berat Birsen E., Orhan Akansu S., Kahraman N., Erciyes University, TR

In this study, the engine performance, power, efficiency, specific fuel consumption and variation of pressure in the cylinder have been investigated in case of the use of hydrogen fuels in internal combustion engines, and compared [...]

Channel-to-rib width ratio effects of flowfield plates in the performance of a micro-PEM fuel cell stack

Her B.-S., Hsieh S.-S., Chen J.H., National Sun Yat-Sen University, TW

Effect of channel-to-rib width ratio of flowfield plates on micro proton exchange membrane fuel cell stacks performance test (VI/PI) was studied experimentally in the present study (see Fig. 1). The channel-to-rib width ratio was varied [...]

Algerian Renewable Energy Projects for Clean Environment

Himri S., Himri Y., Malik A.S., Himri S., Himri Y., Boudghene Stambouli A., SONELGAZ, DZ

Renewable energy sources RES (solar, wind resources, biomass, geothermal, etc.) that use indigenous resources and that supply16% of the total world energy demand, have the potential to provide energy services with zero or almost zero [...]

SMES MRI Device – Alternative for Ecological Energy Storage

Molokac S., Grega L., Rybar P., Rybarova M., Rybarova M., Technical University of Kosiciach, SK

It is well known, that the electrical energy storage in the large scale is basically difficult process. Such a process is marked by the energy losses, as the conversion of electrical energy into another form, [...]

Nanoengineering of a New Generation Proton Exchange Membrane for Micro Fuel Cells

Moghaddam S., Masel R., Shannon M., University of Illinois at Urbana-Champaign, US

We report development of the first viable silicon-based proton exchange membrane (PEM). This was achieved through self-assembly of 3-mercaptopropyl-trimethoxysilane (MPTMS) molecules inside extremely high aspect ratio torturous silicon nanopores. This development can greatly benefit the [...]

A Computational Study to Overcome Mass Transfer Limit in Microfluidic Fuel Cell

Wilburn T., Zhou D., California State Univeristy, Sacramento, US

Membraneless micro fuel cells shown in Fig. 1[1] have eliminated some technical issues related to membrane-based fuel cells such as dry-out at anode and flooding at cathode. However, performance of membraneless micro fuel cell using [...]

A Novel Anode Electrode for Direct Borohydride Fuel Cell

Kim K-J, Bernas R., Miley G.H., Luo N., Yang X., University of Illinois, US

As part of the development of a portable fuel cell using direct sodium Borohydride fuel, deposition methods of the catalysis on the diffusion layer have been studied. In earlier studies catalyst deposition onto a porous [...]

Energy-efficient electrochemical CO2 capture from the atmosphere

Eisaman M.D., Schwartz D.E., Amic S., Larner D., Zesch J., Littau K., Palo Alto Research Center, US

In this contribution, we report on the experimental demonstration of a continuously operating modified fuel cell capable of capturing CO2 at atmospheric concentrations with record efficiency. The atmosphere provides O2 and CO2 at the cathode, [...]

Measurement of Thermal Properties of Suspensions of Nanoparticles in Engine Oil

Khan Mohammadi S., Etemad S.Gh., Thibault J., Isfahan University of Technology, CA

Nanofluids refer to new kinds of engineering materials which are prepared by dispersing fine nanometer sized particles (smaller than 100 nm) in a base fluid. It has been recognized in the past decade that nanofluids [...]

Environmentally Friendly Production of Unconventional Natural Gas Resources

Haut R.C., Burnett D., Williams T., Houston Advanced Research Center, US

Clean burning natural gas begins with producing the gas in an environmentally friendly manner. Industry has made great strides in protecting the environment while increasing natural gas production in the U.S. Producers, however, still face [...]