Air Products and Chemicals, Inc.

Simone L Kothare

Joseph Perry Cohen

Jorge Anibal Mandler

Anthony R Kyvelos

A system comprising an ammonia cracking unit in which ammonia is split into hydrogen and nitrogen and a hydrogen fueling station for fueling of vehicle tanks with hydrogen from the ammonia cracking unit which comprises gas operated valves (GOVs), one or more hydrogen compressing units wherein the hydrogen from the ammonia cracking unit is compressed, and one or more dispensing units for dispensing the compressed hydrogen to vehicle tanks which each comprise a nozzle through which the hydrogen is passed to the vehicle tank, wherein nitrogen from the ammonia cracking unit is used in e.g.: the operation of one or more of the GOVs; for blanketing one or more of said hydrogen compressing units; for blanketing and/or purging one or more of the dispensing units; for drying one or more of the nozzles between uses to prevent nozzle freeze on.

Hydrogen fueling station with integrated ammonia cracking unit

A method and apparatus for designing perturbation signals to excite a number of input variables of a system, in order to test that system for the purpose of obtaining models for the synthesis of a model-based controller. The method begins with providing input parameters of the system. A plurality of binary multi-frequency (BMF) signals are generated based on these input parameters and the frequency spectra of these BMF signals are calculated. One BMF signal is selected out of the set of BMF signals so that the frequency spectrum of the selected BMF signal most closely matches a desired frequency spectrum specified by the input parameters. The selected BMF signal is used as a first perturbation signal for testing the system. The selected BMF signal is also shifted by predetermined amounts of samples to create delayed copies of the original BMF signal to be used as additional perturbation signals.

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Slatington, PA, United States of America

Simone L Kothare