The compressor-less thermal compression hydrogen refueling station concept is being analyzed as a cost-effective alternative to “traditional” fueling stations. A transient thermodynamic model was developed and used in this paper to evaluate the pathways that minimize both operating (venting losses) and capital (size of the cryogenic vessels cascade) costs. Various conditions were simulated, including operating conditions and vessel design. Results were given as a ratio of venting losses per kg H2 dispensed, and as a material balance (liner and overwrap) for the cascade necessary to meet a certain given size. Typical HDSAM assumptions were used for station sizing, including the utilization profile, also known as “Chevron” profile
