Green Hydrogen Production and Combustion in a Solar-Enhanced Brayton-Rankine Cycle: A Case Study in Bandar Abbas, Iran
A study on a real steam power plant in Iran is conducted to explore a novel approach to sustainable hydrogen production by integrating a combined Brayton-Rankine cycle with concentrated photovoltaics. Through the efficient utilization of concentrated sunlight, the system provides the electricity dem...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Materials and Energy Research Center (MERC)
2024-07-01
|
| Series: | Journal of Renewable Energy and Environment |
| Subjects: | |
| Online Access: | https://www.jree.ir/article_201467_57704d198914a416de09775d2c278297.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850269333554462720 |
|---|---|
| author | AmirMahdi Ijadi Abolfazl Fattahi |
| author_facet | AmirMahdi Ijadi Abolfazl Fattahi |
| author_sort | AmirMahdi Ijadi |
| collection | DOAJ |
| description | A study on a real steam power plant in Iran is conducted to explore a novel approach to sustainable hydrogen production by integrating a combined Brayton-Rankine cycle with concentrated photovoltaics. Through the efficient utilization of concentrated sunlight, the system provides the electricity demand of the proton exchange membrane (PEM) electrolyzer, while the input thermal energy required for hydrogen production is supplied by the Rankine cycle. Furthermore, the hydrogen produced is burned in the combustion chamber of the Brayton cycle. The analysis of the first and second laws of thermodynamics is performed. The effects of changes in various parameters, such as the combustion temperature, compressor pressure ratio, boiler outlet temperature, and condenser pressure, on performance are evaluated. The results indicate that energy and exergy efficiency increase with higher outlet steam boiler or combustion chamber temperatures. However, an increase in condenser pressure decreases both efficiencies, despite increasing the net power of the total cycle. Enhancing the current electrical density of the PEM improves hydrogen production by a factor of four, while it elevates the PEM efficiency by only about 9%. The efficiency of the total and Brayton cycles increases by approximately 43% and 50%, respectively, with an increase in the inlet gas turbine temperature from 1200 to 1600K. The exergy efficiency reaches 66% and 57%, respectively, for the Rankine and total cycles, with an increase in boiler temperature from around 600 to 1200K. |
| format | Article |
| id | doaj-art-3112c4c422bd4f5880e081ddb406bbfb |
| institution | OA Journals |
| issn | 2423-5547 2423-7469 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Materials and Energy Research Center (MERC) |
| record_format | Article |
| series | Journal of Renewable Energy and Environment |
| spelling | doaj-art-3112c4c422bd4f5880e081ddb406bbfb2025-08-20T01:53:10ZengMaterials and Energy Research Center (MERC)Journal of Renewable Energy and Environment2423-55472423-74692024-07-01113889910.30501/jree.2024.437695.1818201467Green Hydrogen Production and Combustion in a Solar-Enhanced Brayton-Rankine Cycle: A Case Study in Bandar Abbas, IranAmirMahdi Ijadi0Abolfazl Fattahi1Department of Mechanical Engineering, University of Kashan, Kashan, Iran.Department of Mechanical Engineering, University of Kashan, Kashan, Iran.A study on a real steam power plant in Iran is conducted to explore a novel approach to sustainable hydrogen production by integrating a combined Brayton-Rankine cycle with concentrated photovoltaics. Through the efficient utilization of concentrated sunlight, the system provides the electricity demand of the proton exchange membrane (PEM) electrolyzer, while the input thermal energy required for hydrogen production is supplied by the Rankine cycle. Furthermore, the hydrogen produced is burned in the combustion chamber of the Brayton cycle. The analysis of the first and second laws of thermodynamics is performed. The effects of changes in various parameters, such as the combustion temperature, compressor pressure ratio, boiler outlet temperature, and condenser pressure, on performance are evaluated. The results indicate that energy and exergy efficiency increase with higher outlet steam boiler or combustion chamber temperatures. However, an increase in condenser pressure decreases both efficiencies, despite increasing the net power of the total cycle. Enhancing the current electrical density of the PEM improves hydrogen production by a factor of four, while it elevates the PEM efficiency by only about 9%. The efficiency of the total and Brayton cycles increases by approximately 43% and 50%, respectively, with an increase in the inlet gas turbine temperature from 1200 to 1600K. The exergy efficiency reaches 66% and 57%, respectively, for the Rankine and total cycles, with an increase in boiler temperature from around 600 to 1200K.https://www.jree.ir/article_201467_57704d198914a416de09775d2c278297.pdfbrayton-rankin power plantpem electrolyzergreen hydrogenexergy efficiencyhydrocarbon-hydrogen burning |
| spellingShingle | AmirMahdi Ijadi Abolfazl Fattahi Green Hydrogen Production and Combustion in a Solar-Enhanced Brayton-Rankine Cycle: A Case Study in Bandar Abbas, Iran Journal of Renewable Energy and Environment brayton-rankin power plant pem electrolyzer green hydrogen exergy efficiency hydrocarbon-hydrogen burning |
| title | Green Hydrogen Production and Combustion in a Solar-Enhanced Brayton-Rankine Cycle: A Case Study in Bandar Abbas, Iran |
| title_full | Green Hydrogen Production and Combustion in a Solar-Enhanced Brayton-Rankine Cycle: A Case Study in Bandar Abbas, Iran |
| title_fullStr | Green Hydrogen Production and Combustion in a Solar-Enhanced Brayton-Rankine Cycle: A Case Study in Bandar Abbas, Iran |
| title_full_unstemmed | Green Hydrogen Production and Combustion in a Solar-Enhanced Brayton-Rankine Cycle: A Case Study in Bandar Abbas, Iran |
| title_short | Green Hydrogen Production and Combustion in a Solar-Enhanced Brayton-Rankine Cycle: A Case Study in Bandar Abbas, Iran |
| title_sort | green hydrogen production and combustion in a solar enhanced brayton rankine cycle a case study in bandar abbas iran |
| topic | brayton-rankin power plant pem electrolyzer green hydrogen exergy efficiency hydrocarbon-hydrogen burning |
| url | https://www.jree.ir/article_201467_57704d198914a416de09775d2c278297.pdf |
| work_keys_str_mv | AT amirmahdiijadi greenhydrogenproductionandcombustioninasolarenhancedbraytonrankinecycleacasestudyinbandarabbasiran AT abolfazlfattahi greenhydrogenproductionandcombustioninasolarenhancedbraytonrankinecycleacasestudyinbandarabbasiran |