This research is concerned with the design and analysis of a geothermal based multi-generation system by applying both conventional and advanced exergy and exergoeconomic concepts. The proposed energy system consists of a dual-organic Rankine cycle (ORC) to vaporize liquefied natural gas (LNG) and produce electricity. A proton exchange membrane(PEM) electrolyzer is employed to produce hydrogen ...

The exclusion zone (EZ) is a boundary region devoid of macromolecules and microscopic particles formed spontaneously in the vicinity of hydrophilic surfaces. The exact mechanisms behind this remarkable phenomenon are still not fully understood and are debated. We measured the shortand long-time-scale kinetics of EZ formation around a Nafion gel embedded in specially designed microfluidic device...

The effect of in situ chemical oxidation (ISCO) with permanganate (MnO4-) on tetrachloroethene (PCE) in a dual permeability system consisting of low permeability clay with high permeability sand lenses was investigated by two-dimensional laboratory experiments. The experiments imitate a field remediation at a former dry cleaning facility in Denmark. Results from laboratory experiments and field...

Gas drainage in deep coal seam is a critical issue ensuring the safety of mining and an important measure to obtain gas as kind clean available energy. In order get better understanding flow diffusion for seams, dual-zone model, including damage zone (DDZ) non-damaged (NDZ), are characterized by different permeability models anomalous analyze influence induced drilling boreholes on flow. The mo...