dc.citation.conferencePlace |
KO |
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dc.citation.title |
2016 한국공업화학회 추계 학술대회 |
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dc.contributor.author |
김우정 |
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dc.contributor.author |
한상우 |
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dc.contributor.author |
전병문 |
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dc.contributor.author |
이형개 |
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dc.contributor.author |
권영남 |
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dc.date.accessioned |
2023-12-19T19:41:42Z |
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dc.date.available |
2023-12-19T19:41:42Z |
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dc.date.created |
2016-12-13 |
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dc.date.issued |
2016-10-27 |
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dc.description.abstract |
Desalination using freezing has recently attracted attentions for less heat of fusion for water (333 kJ/kg) than evaporation (2,500 kJ/kg). CO2 gas hydrate-induced quick-freezing is a lately developed freezing method using the dissociation energy of CO2 gas hydrate at ventilation. CO2 gas hydrate is an ice-like form with CO2 guest molecule under pressurized condition. The object of this study is to investigate the effect of operating gas pressure on CO2 gas hydrate-induced quick-freezing. Internal temperature shift during the process was monitored to evaluate energy transfer. It was found that two major energies were involved in the process: decarbonation of CO2 gas and dissociation of gas hydrate. DSC (Differential scanning calorimetry) study showed the heat of dissociation (500.13 J/g) was the dominant driving force caused quick-freezing than decarbonation (34.48 J/g). With increasing operating gas pressure, more gas was captured in the solution and caused more drop of temperature. |
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dc.identifier.bibliographicCitation |
2016 한국공업화학회 추계 학술대회 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/40651 |
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dc.identifier.url |
https://www.ksiec.or.kr/new_site/convention/guide.html |
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dc.language |
영어 |
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dc.publisher |
한국공업화학회 |
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dc.title |
The effect of operating gas pressure on CO2 gas hydrate-induced quick-freezing |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2016-26-20 |
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