As frustration over high BGE utility bills mount, some Baltimore residents are also voicing their frustration, pushing back ...

so that the pipe stores the heat and contains the high pressure gas. The vacuum system uses an air ejector driven by the existing high pressure air supply to provide low back pressures. The tunnel can ...

The HPVA II offers a weight percentage plot that shows the amount of gas adsorbed at a set pressure as a function of the sample mass—the standard technique for appraising the hydrogen storage capacity ...