Back to Search
Start Over
Process optimization and analysis of a novel hydrogen liquefaction cycle
- Source :
- International Journal of Refrigeration. 110:219-230
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- 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 kgLH2−1, 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.
- Subjects :
- Materials science
Hydrogen
business.industry
020209 energy
Mechanical Engineering
Turboexpander
Refrigeration
Liquefaction
chemistry.chemical_element
02 engineering and technology
Building and Construction
Coefficient of performance
021001 nanoscience & nanotechnology
chemistry
0202 electrical engineering, electronic engineering, information engineering
Figure of merit
Process optimization
Sensitivity (control systems)
0210 nano-technology
Process engineering
business
Subjects
Details
- ISSN :
- 01407007
- Volume :
- 110
- Database :
- OpenAIRE
- Journal :
- International Journal of Refrigeration
- Accession number :
- edsair.doi...........c817307f446e4a926355973364e9269c