Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5146087 | International Journal of Hydrogen Energy | 2017 | 10 Pages |
Abstract
Economic evaluation for water electrolysis compared to steam methane reforming has been carried out in terms of unit hydrogen production cost analysis, sensitivity analysis, and profitability analysis to assess current status of water electrolysis in Korea. For a hydrogen production capacity of 30 Nm3 hâ1, the unit hydrogen production cost was 17.99, 16.54, and 20.18 $ kg H2â1 for alkaline water electrolysis (AWE), PEM water electrolysis (PWE), and steam methane reforming (SMR), respectively with 11.24, 10.66, and 11.80 for 100 Nm3 hâ1 and 8.12, 7.72, and 7.59 $ kg H2â1 for 300 Nm3 hâ1. With sensitivity analysis (SA), the most influential factors on the unit hydrogen production cost depending on the hydrogen production capacity were determined. Lastly, profitability analysis (PA) presented a discounted payback period (DPBP), net present value (NPV), and present value ratio (PVR) for a different discount rate ranging from 2 to 14% and it was found that a discounted cash flow rate of return (DCFROR) was 14.01% from a cash flow diagram obtained for a hydrogen production capacity of 30 Nm3 hâ1.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Boreum Lee, Heetae Chae, Nak Heon Choi, Changhwan Moon, Sangbong Moon, Hankwon Lim,