Theoretical analysis of supercooled states of water generated below the freezing point in a PEFC
The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled s...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ishikawa, Yuji [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2014transfer abstract |
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| Schlagwörter: |
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| Umfang: |
13 |
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| Übergeordnetes Werk: |
Enthalten in: Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection - Basheer, Sabeel M. ELSEVIER, 2019, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:74 ; year:2014 ; pages:215-227 ; extent:13 |
| Links: |
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| DOI / URN: |
10.1016/j.ijheatmasstransfer.2014.03.038 |
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ELV017976006 |
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| 520 | |a The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. | ||
| 520 | |a The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. | ||
| 650 | 7 | |a PEFC |2 Elsevier | |
| 650 | 7 | |a Heterogeneous nucleation theory |2 Elsevier | |
| 650 | 7 | |a Supercooled water |2 Elsevier | |
| 650 | 7 | |a Cold start |2 Elsevier | |
| 700 | 1 | |a Shiozawa, Masahiro |4 oth | |
| 700 | 1 | |a Kondo, Masaaki |4 oth | |
| 700 | 1 | |a Ito, Kohei |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Basheer, Sabeel M. ELSEVIER |t Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection |d 2019 |g Amsterdam [u.a.] |w (DE-627)ELV002904500 |
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10.1016/j.ijheatmasstransfer.2014.03.038 doi GBVA2014021000002.pica (DE-627)ELV017976006 (ELSEVIER)S0017-9310(14)00244-0 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Ishikawa, Yuji verfasserin aut Theoretical analysis of supercooled states of water generated below the freezing point in a PEFC 2014transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. PEFC Elsevier Heterogeneous nucleation theory Elsevier Supercooled water Elsevier Cold start Elsevier Shiozawa, Masahiro oth Kondo, Masaaki oth Ito, Kohei oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:74 year:2014 pages:215-227 extent:13 https://doi.org/10.1016/j.ijheatmasstransfer.2014.03.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 74 2014 215-227 13 045F 620 |
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10.1016/j.ijheatmasstransfer.2014.03.038 doi GBVA2014021000002.pica (DE-627)ELV017976006 (ELSEVIER)S0017-9310(14)00244-0 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Ishikawa, Yuji verfasserin aut Theoretical analysis of supercooled states of water generated below the freezing point in a PEFC 2014transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. PEFC Elsevier Heterogeneous nucleation theory Elsevier Supercooled water Elsevier Cold start Elsevier Shiozawa, Masahiro oth Kondo, Masaaki oth Ito, Kohei oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:74 year:2014 pages:215-227 extent:13 https://doi.org/10.1016/j.ijheatmasstransfer.2014.03.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 74 2014 215-227 13 045F 620 |
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10.1016/j.ijheatmasstransfer.2014.03.038 doi GBVA2014021000002.pica (DE-627)ELV017976006 (ELSEVIER)S0017-9310(14)00244-0 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Ishikawa, Yuji verfasserin aut Theoretical analysis of supercooled states of water generated below the freezing point in a PEFC 2014transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. PEFC Elsevier Heterogeneous nucleation theory Elsevier Supercooled water Elsevier Cold start Elsevier Shiozawa, Masahiro oth Kondo, Masaaki oth Ito, Kohei oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:74 year:2014 pages:215-227 extent:13 https://doi.org/10.1016/j.ijheatmasstransfer.2014.03.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 74 2014 215-227 13 045F 620 |
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10.1016/j.ijheatmasstransfer.2014.03.038 doi GBVA2014021000002.pica (DE-627)ELV017976006 (ELSEVIER)S0017-9310(14)00244-0 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Ishikawa, Yuji verfasserin aut Theoretical analysis of supercooled states of water generated below the freezing point in a PEFC 2014transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. PEFC Elsevier Heterogeneous nucleation theory Elsevier Supercooled water Elsevier Cold start Elsevier Shiozawa, Masahiro oth Kondo, Masaaki oth Ito, Kohei oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:74 year:2014 pages:215-227 extent:13 https://doi.org/10.1016/j.ijheatmasstransfer.2014.03.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 74 2014 215-227 13 045F 620 |
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10.1016/j.ijheatmasstransfer.2014.03.038 doi GBVA2014021000002.pica (DE-627)ELV017976006 (ELSEVIER)S0017-9310(14)00244-0 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Ishikawa, Yuji verfasserin aut Theoretical analysis of supercooled states of water generated below the freezing point in a PEFC 2014transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. PEFC Elsevier Heterogeneous nucleation theory Elsevier Supercooled water Elsevier Cold start Elsevier Shiozawa, Masahiro oth Kondo, Masaaki oth Ito, Kohei oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:74 year:2014 pages:215-227 extent:13 https://doi.org/10.1016/j.ijheatmasstransfer.2014.03.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 74 2014 215-227 13 045F 620 |
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Enthalten in Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection Amsterdam [u.a.] volume:74 year:2014 pages:215-227 extent:13 |
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Enthalten in Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection Amsterdam [u.a.] volume:74 year:2014 pages:215-227 extent:13 |
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Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection |
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Theoretical analysis of supercooled states of water generated below the freezing point in a PEFC |
| abstract |
The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. |
| abstractGer |
The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. |
| abstract_unstemmed |
The water produced in a proton exchange fuel cell can exist in supercooled states during cold start operation. Visualization studies of unit cells under cold start conditions have confirmed that supercooled states exist in the cells and that they are eventually released. However, these supercooled states have not been quantitatively characterized, and it is difficult to predict them. Moreover, it has not been clarified what determines the supercooling degree and the release of supercooled states in each part of the cells, such as the gas flow channels, gas diffusion layers, and catalyst layer. In this work, a theoretical model was developed to predict the release of supercooled states on the basis of heterogeneous nucleation theory and by considering the surface wettability of the porous media in the cells. This model was evaluated through comparison to our in situ visualization study of a cell during a cold start. The developed model reproduced the supercooled state in the cell well, specifically its release time, and quantitatively clarified the impact of the pore diameter and wettability on the supercooled states. |
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