ANSI CSA HGV 4.3 pdf free download
ANSI CSA HGV 4.3 pdf free download.Test methods for hydrogen fueling parameter evaluation.
3 Definitions and abbreviations
3.1 Definitions
The following definitions shall apply in this Standard:
Authority having jurisdiction — the organization, Regulatory Authority, office, or individual responsible for approving equipment, an installation, or a procedure.
Average pressure ramp rate (APRR) — the average increase in pressure (MPa/minute) from the start of fueling to the end of fueling.
Compressed hydrogen storage system (CHSS) — the compressed hydrogen storage system consists of the pressurized containment vessel(s), Thermally Activated Pressure Relief Devices (TPRDs), shut off device(s), and all components, fittings and fuel lines between the containment vessel(s) and these shut off device(s) that isolate the stored hydrogen from the remainder of the fuel system and the environment.
Compressed hydrogen storage system capacity — the total mass of hydrogen stored in the CHSS at the nominal working pressure (at 15 °C), which is equivalent to the CHSS 100% state of charge.
Compressed hydrogen storage system capacity categories — the CHSS capacity category is a range of CHSS capacities which may fuel in a similar manner by a fueling protocol.
Communications fueling — communications fueling means that a valid data connection has been established from vehicle to fueling station dispenser as described in SAE J2799.
Communication mode — method of fueling using communication or non-communications as defined in SAE J2799 and SAE i2601.
Communication testing — testing of the IrDA system.
Cycle control — controlling the fuel flow in an on-off manner.
Cyclic redundancy check — a type of hash function used to produce a checksum used to detect and correct transmission errors in data as defined in SAE J2799.
Data communication link — the data communications portion of the connector consists of an infrared emitter that is mounted in the HSV in close proximity to the receptacle and infrared receivers that are located in the nozzle. These devices allow the HSV to send data to the fuel dispensing system.
Data loss — loss of the IrDA signal from the station test apparatus as defined in SAE J2799. Dispenser — a device intended to transfer compressed hydrogen gas.
Dispenser manufacturer — the manufacturer of the dispenser and the organization responsible for supporting the testing of the dispenser.
End of fueling — the end of gas flow from the dispenser to the vehicle prior to the shutdown time. The end of fueling occurs when the station reaches its anticipated completion based upon the fueling protocol.
Fallback pressure ramp rate — the average increase in pressure (MPa / minute) from the start of fueling to the end of fueling during Fallback fueling protocol.
Fault testing — testing to verify the station reacts properly if a process limit is exceeded.
Field testing — testing of the dispenser at the station where it is installed.
Flow rate (mass) — the mass of fuel that flows in a given time.
Frame check sequence — the frame check sequence field detects errors in the received frame as described in SAE J2799.
Fueling event — the process of a dispenser filling a vehicle (or HDTA test tank). Each fueling event will start with a pressure pulse to establish vehicle start pressure and check for leaks at the hose and nozzle/receptacle connecting point, and includes a smooth pressure ramp rise and ends when the vehicle tank pressure equals the target pressure calculated by the dispenser system, or terminated by a halt command issued by the IrDA.ANSI CSA HGV 4.3 pdf download.
