Refueling Stations Sample Clauses

Refueling Stations. Each vehicle to be filled represents one pressure cycle. 20 refuelling per day over 20 years equal 146.000 cycles – (low estimate for the future). 100 vehicles every day over 30 years equals about 1.000.000 cycles. These fill cycles are shallow and quite different from those for transportable and automotive applications. Depending on the station design, the high pressure tanks are only used for vehicle top fill, resulting in smaller pressure decreases and increase per pressure cycle. Moderate refueling time (by on site compressor) are expected. Quick depressurization within pressure amplitude range the cylinders will operate. Cylinders in a hydrogen refueling station will stay most of the lifetime at high pressure.  Automotive applications: For a fuel cell passenger car, one fill per day over 20 years can be assumed worst case, equals 7.300 cycles. If the car is in a local fleet-service operation 24h a day, we can assume that the vehicle will be filled once in each shift (3 times a day), which will equal to 21.900 partial fills. Refueling from 3% to 125% of service pressure within 3 min can be expected. The fill gas temperature will be as low as -40°C at the start, with end of fill temperature in the cylinder up-to 85°C. Depressurization (at all environmental temperature conditions) worst case can be as short as 1 h. For average highway/city cycles, the time can vary from several hours up to days Testing and certifying a composite cylinder for multipurpose applications, to which worst case throughout all applications has to be taken into consideration, will in most cases contribute to a cost increase of most cylinders.