Abstract
Recently, studies have begun on a functional heat transfer medium using fine spherical microcapsules encapsulated with phase-change material and dispersed in water. This enables the medium to maintain fluidity whether the phase-change material is solid or liquid. The present study has clarified the laten-heat storage characteristics of microcapsule slurry by increasing its heat transfer coefficient with the help of evolved heat condensing of vapor from the slurry in heat storage. Paraffin wax with the melting point of 62°C was encapsulated into the fine microcapsules and used as a phase-change material. The cooling coil surface temperature and concentration of paraffin in the microcapsule slurry were selected as the experimental parameters. As a result, the non-dimensional correlation equations of the heat release completion time and heat transfer coefficient were derived in terms of non-dimensional parameters.
| Original language | English |
|---|---|
| Pages (from-to) | 444-451 |
| Number of pages | 8 |
| Journal | Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 70 |
| Issue number | 690 |
| Publication status | Published - Feb 2004 |
| Externally published | Yes |
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Keywords
- Film Condensation
- Heat Release
- Latent Heat Storage
- Microcapsule slurry
- Phase Change Material
- Subcooled Boiling
ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Latent Heat Release Characteristics of Solid-liquid Phase Change Heat Storage Microcapsule Slurry by Condensation Heat of Vapor under a Vacuum Condition. / Katayama, Masatoshi; Inaba, Hideo; Horibe, Akihiko; Haruki, Naoto; Manabe, Tsuyoshi.
In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 70, No. 690, 02.2004, p. 444-451.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Latent Heat Release Characteristics of Solid-liquid Phase Change Heat Storage Microcapsule Slurry by Condensation Heat of Vapor under a Vacuum Condition
AU - Katayama, Masatoshi
AU - Inaba, Hideo
AU - Horibe, Akihiko
AU - Haruki, Naoto
AU - Manabe, Tsuyoshi
PY - 2004/2
Y1 - 2004/2
N2 - Recently, studies have begun on a functional heat transfer medium using fine spherical microcapsules encapsulated with phase-change material and dispersed in water. This enables the medium to maintain fluidity whether the phase-change material is solid or liquid. The present study has clarified the laten-heat storage characteristics of microcapsule slurry by increasing its heat transfer coefficient with the help of evolved heat condensing of vapor from the slurry in heat storage. Paraffin wax with the melting point of 62°C was encapsulated into the fine microcapsules and used as a phase-change material. The cooling coil surface temperature and concentration of paraffin in the microcapsule slurry were selected as the experimental parameters. As a result, the non-dimensional correlation equations of the heat release completion time and heat transfer coefficient were derived in terms of non-dimensional parameters.
AB - Recently, studies have begun on a functional heat transfer medium using fine spherical microcapsules encapsulated with phase-change material and dispersed in water. This enables the medium to maintain fluidity whether the phase-change material is solid or liquid. The present study has clarified the laten-heat storage characteristics of microcapsule slurry by increasing its heat transfer coefficient with the help of evolved heat condensing of vapor from the slurry in heat storage. Paraffin wax with the melting point of 62°C was encapsulated into the fine microcapsules and used as a phase-change material. The cooling coil surface temperature and concentration of paraffin in the microcapsule slurry were selected as the experimental parameters. As a result, the non-dimensional correlation equations of the heat release completion time and heat transfer coefficient were derived in terms of non-dimensional parameters.
KW - Film Condensation
KW - Heat Release
KW - Latent Heat Storage
KW - Microcapsule slurry
KW - Phase Change Material
KW - Subcooled Boiling
UR - http://www.scopus.com/inward/record.url?scp=2142764535&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=2142764535&partnerID=8YFLogxK
M3 - Article
VL - 70
SP - 444
EP - 451
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 690
ER -