Process Control for Integrated Hydrogen Storage in Fuel Cell Energy Storage System

摘要

A process control system includes a storage chamber, a fuel cell in fluid communication with the storage chamber via a feed line, a suction dampening drum in fluid communication with the fuel cell via a product line, a compressor in fluid communication with the suction dampening drum and the storage chamber, a recycle line disposed between the feed line and the product line, and a pressure controller disposed in the recycle line. When the fuel cell is in an electrolysis mode, the pressure controller may be operated to maintain a minimum pressure level inside the drum.

主权项

1. A process control system comprising:
at least one storage chamber holding hydrogen; a fuel cell in fluid communication with the at least one storage chamber via a feed line; a suction dampening drum in fluid communication with the fuel cell via a product line; a compressor in fluid communication with the suction dampening drum and the at least one storage chamber; a recycle line extending from the feed line to the product line and independent of the fuel cell; and a pressure controller disposed in the recycle line and configured to selectively communicate hydrogen from the at least one storage chamber to the suction dampening drum through the recycle line.