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Water evaporation rate from a radiation-heated porous material considering a local variation of matric potential
http://hdl.handle.net/2297/46811
http://hdl.handle.net/2297/46811d3ffd13e-ee50-42d0-82ce-fdef2daddac7
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TE-PR-SEKI-H-51.pdf (628.7 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | Water evaporation rate from a radiation-heated porous material considering a local variation of matric potential | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| その他のタイトル | ||||||
| 値 | マトリックポテンシャルの局所的変化を考慮した放射加熱多孔質体からの水分蒸発速度 | |||||
| 著者 |
Ichikawa, Hisato
× Ichikawa, Hisato× Seki, Hirakazu× Takami, Shinichi |
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| 書誌情報 |
Journal of Agricultural Meteorology = 農業気象 巻 66, 号 1, p. 51-56, 発行日 2010-01-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0021-8588 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA12492451 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.2480/agrmet.66.1.4 | |||||
| 出版者 | ||||||
| 出版者 | 日本農業気象学会 = Society of Agricultural Meteorology of Japan | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In a previous study (Ichikawa et al., 2008), we found experimentally and confirmed theoretically that a porous column, the primary part of a solar pump, enhanced water evaporation. The evaporation rate from the surface of a sand column was higher than that from the water surface. Our previous study also showed that there was an optimum height of the sand column at which the rate of evaporation was the maximum. Experimental results for the water evaporation rate changed continuously with increasing water table depth and had a maximum at a particular depth value. The evaporation rates calculated from a mathematical model based on Philip and de Vries (1957), however, changed discontinuously at a particular value of water table depth at which maximum evaporation occurred. Assuming that the local evaporation rate on the column surface varies, following a statistical normal distribution, we computed its average over the column surface. The rates thus computed changed continuously with increasing water table depth, which agreed well with the experimental results. We therefore conclude that the discrepancy in the previous study arose because the experimental results are averages over the surface, while those theoretically calculated without considering the statistical distribution are merely local values on the surface. | |||||
| 権利 | ||||||
| 権利情報 | Copyright © The Society of Agricultural Meteorology of Japan | |||||
| 権利URI | ||||||
| 権利情報 | http://www.agrmet.jp/ | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.jstage.jst.go.jp/browse/agrmet | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://agrmet.jp/ | |||||
