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DC Field | Value | Language |
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dc.citation.startPage | 123964 | - |
dc.citation.title | FUEL | - |
dc.citation.volume | 320 | - |
dc.contributor.author | Lee, Hyunhee | - |
dc.contributor.author | Haider, Junaid | - |
dc.contributor.author | Qyyum, Muhammad Abdul | - |
dc.contributor.author | Choe, Changgwon | - |
dc.contributor.author | Lim, Hankwon | - |
dc.date.accessioned | 2023-12-21T13:49:58Z | - |
dc.date.available | 2023-12-21T13:49:58Z | - |
dc.date.created | 2022-12-30 | - |
dc.date.issued | 2022-07 | - |
dc.description.abstract | Hydrogen liquefaction can be one of the effective and viable solutions to enhance its energy contents for storage and transportation purposes. However, liquefaction of H-2 is highly energy intensive where precooling is the most significant energy consumption section (similar to 50% of overall process) due to huge reduction in temperature (25 to-159.4 degrees C). In this context, in proposed study the precooling cycle is split into two cycles for reducing the energy consumption, 1) Hydrofluoroolefin-based mixed refrigerant stream which reduces the H-2 temperature to -30 degrees C and 2) Mixed refrigerant stream which tends to reduce the H-2 temperature up to-159.4 degrees C. This is the first study which utilizes the four refrigeration cycles with unique selection of HFO-based mixed refrigerants in precooling section to reduce the gaseous H-2 temperature. Results of proposed study reveal that the specific energy consumption of proposed process was reduced by 55.2 % and 29.5%, as compared to base case-I (10.15 kWh/kgLH(2)) and base case-II (6.45 kWh/kgLH(2)), respectively. The exergy efficiency of the proposed process was increased by 67%. In addition, results of economic evaluation depicted that the total annualized cost of proposed process was obtained as $1.89 x 10(6)/y where the CAPEX has share of similar to 71.7% in total cost of project. The estimated unit production cost was recorded as $5.18/kg of LH2 at the capacity of 1TPD. The simplicity and less energy consumption of proposed model built a basis for its development to commercial scale adoption. | - |
dc.identifier.bibliographicCitation | FUEL, v.320, pp.123964 | - |
dc.identifier.doi | 10.1016/j.fuel.2022.123964 | - |
dc.identifier.issn | 0016-2361 | - |
dc.identifier.scopusid | 2-s2.0-85127159823 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/60727 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0016236122008237?via%3Dihub | - |
dc.identifier.wosid | 000806803700004 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | An innovative high energy efficiency-based process enhancement of hydrogen liquefaction: Energy, exergy, and economic perspectives | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels; Engineering, Chemical | - |
dc.relation.journalResearchArea | Energy & Fuels; Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Hydrogen liquefaction | - |
dc.subject.keywordAuthor | HFO based mixed refrigerants | - |
dc.subject.keywordAuthor | Process enhancement | - |
dc.subject.keywordAuthor | Specific energy consumption | - |
dc.subject.keywordAuthor | Exergy efficiency | - |
dc.subject.keywordPlus | MIXED-REFRIGERANT | - |
dc.subject.keywordPlus | ELECTROLYSIS | - |
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