Hydrogen - A Zero-emission Solution

Hydrogen electrocatalysis: a basic solution.

Zero Emission Coal Power, a New Concept

The Zero Emission Coal Alliance (ZECA) is developing an integrated zero emission process that will generate clean energy carriers (electricity or hydrogen) from coal. The process exothermically gasifies coal using hydrogen to produce a methane rich intermediate state. The methane is subsequently reformed using water and a CaO based sorbent. The sorbent supplies the energy needed to drive the re...

Molecular hydrogen emission in Cygnus A

We present J, H and K-band spectroscopy of Cygnus A, spanning 1.0–2.4µm in the rest-frame and hence several rovibrational H 2 , H recombination and [FeII] emission lines. The lines are spatially extended by up to 6 kpc from the nucleus, but their distinct kinematics indicate that the three groups (H, H 2 and [FeII]) are not wholly produced in the same gas. The broadest line, [FeII]λ1.644, exhib...

Towards Development of a Label for Zero Emission Buildings: A Tool to Evaluate Potential Zero Emission Buildings

The operation of so-called Zero Emission Buildings (ZEB) does not result in harmful emissions to water, soil and air. In contrast, ZEBs produce energy, water and resources. Therefore, the definition of ZEBs in this paper goes well beyond the definition of (Net) Zero Energy Buildings, which focuses primarily on greenhouse gas emissions resulting from the combustion of fossil fuels. The concept o...

Interpreting the Molecular Hydrogen Emission

Intense emission lines of near{IR molecular hydrogen are excited in OMC{1 by shocks, as outtowing gas from the star forming core interacts with the surrounding molecular cloud. These have been studied in OMC{1 in far greater detail than in any other astronomical source. They provide both a picture of the energetic activity associated with massive star formation, and stringent constraints on mod...