TIME-FILL STATION APPLICATION

Time-fill Stations are used to fill vehicles over longer periods of time. Longer fill times can allow smaller and lower cost compression equipment. Time-fill systems often fill vehicles overnight when the cost of electricity used for the compression equipment is lower. Centrally fueled fleets such as school buses, trash trucks and utility service vehicles are excellent candidates for time-fill systems.


Daughter Station Design

Springfield Mass Transit District in Springfield Illinois operates approximately 50 buses, 20 of which are CNG. The buses are filled overnight in a time-fill arrangement.

Specifications:
Compressor – 2

Capacity each – 250 scfm – 422 SM3/Hr
Capacity site – 500 scfm – 844 SM3/Hr
Engine – Caterpillar – 3306NA (2)
Inlet Pressure – 30 psig – 2.1 barg
Discharge Pressure – 4500 psig – 310 barg

Dispensers Time-fill – 8
Maximum Flow each – 1000 scfm – 3550 SM3/Hr
Meters – None