SYSTEM FOR STORING AND DELIVERING GASEOUS AMMONIA

The system comprises: multiple storage cells (10) for storing gaseous ammonia, where the storage cells include a storage material (102) for absorbing ammonia gas, a pressure unit for adjusting an internal pressure of each cell independently, and a heating unit (106). The system further comprises: an output interface (40) for connecting the storage cells to a consumer unit (30) for outputting the gaseous ammonia out of the cell when the internal pressure is greater than downstream pressure; and a control device connected to the storage cells. The system comprises: multiple storage cells (10) for storing gaseous ammonia, where the storage cells include a storage material (102) for absorbing ammonia gas, a pressure unit for adjusting an internal pressure of each cell independently, and a heating unit (106). The system further comprises: an output interface (40) for connecting the storage cells to a consumer unit (30) for allowing the gaseous ammonia out of the cell when the internal pressure is greater than downstream pressure; a control device connected to the storage cells for independently controlling the delivery of ammonia activity of the cell to the output interface; and a control unit for adjusting the internal pressure of the cells. The output interface comprises an outlet valve for outputting the gaseous ammonia out of the cell when the internal pressure is higher than a downstream pressure of the outlet valve. A flow control unit allows flowing of gaseous ammonia to the consumer unit. The output interface connects the cells by flow control unit. The output interface comprises a common channel downstream of the outlet valve for connecting the outlet valves to the cells and the flow control unit so that an opening of an outlet valve causes closing of the output valve by pressure difference. The control device comprises a pressure sensor placed in the output interface. The control system is arranged to estimate the internal pressure of the cell based on a command from the pressure unit. The flow control unit is a solenoid. An inner pressure adjustment unit comprises a cooling unit. The storage material of the cell is divided into multiple compartments communicating freely with each other. A common input interface comprises a common inlet channel for connecting the cells with a common channel. A filling unit is connected parallel to the cells during filling operation. The input interface is separated from the output interface. The input interface compri