Share

IIR document

Process optimization and analysis of a novel hydrogen liquefaction cycle.

Author(s) : JU Y.

Type of article: Article, IJR article

Summary

The preliminary designed hydrogen liquefaction plant process based on liquid nitrogen precooling and helium gas turbine expansion refrigeration is firstly modified, simulated and analyzed by Aspen HYSYS. In addition, the multi-parameter optimization of the system is carried out by genetic algorithm (GA) by considering the specific energy consumption (SEC) of the system as the objective function. After optimization, it can be found that the SEC of the system is 7.1329 kWh kg LH2 -1 , which is 19.65% lower than that of base case and the coefficient of performance (COP) and figure of merit (FOM) are 0.1704 and 0.4941, which are higher than that prior to the process optimization. In addition, sensitivity analysis is conducted to present the effects of different operation conditions of the designed process on the features of the hydrogen liquefaction process. Compared with the other two systems of hydrogen liquefaction, the process in this paper shows the best performance.

Available documents

Format PDF

Pages: 219-230

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Process optimization and analysis of a novel hydrogen liquefaction cycle.
  • Record ID : 30027301
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 110
  • Publication date: 2020/02
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.11.004

Links


See other articles in this issue (29)
See the source

Indexing