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温室の温水カーテンにおける熱移動の解析
http://hdl.handle.net/2297/46804
http://hdl.handle.net/2297/4680406e86501-8428-4290-a510-745a3ab5beb9
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TE-PR-SEKI-H-195.pdf (852.1 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | 温室の温水カーテンにおける熱移動の解析 | |||||
| タイトル | ||||||
| タイトル | A Theoretical Investigation of Heat Transfer of a Falling Hot Water Film in a Greenhouse | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | |||||
| 著者 |
小森, 友明
× 小森, 友明× 関, 平和 |
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| 書誌情報 |
Journal of Agricultural Meteorology = 農業気象 巻 44, 号 3, p. 195-202, 発行日 1988-01-01 |
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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.44.195 | |||||
| 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 | Heating and thermal insulation characteristics of a falling hot water film on the roof or the screen sheet of a greenhouse may be analysed by evaluating the temperature profile of the thin water film. The temperature profile of the falling water film can be obtained by solving the conduction equation with several suitable boundary conditions, based on the concept of “Transfer and Rate of Processes”. The generalized analytical solution of the temperature profile of the water film was given by Eq. (15) and the average temperature at an arbitrary distance along the direction of water flow, ζ=ζ was given by Eq. (18). From the calculated results of illustrative examples by the analytical solutions, the temperature of the water film at the water film-roof interface, ξ=1 could be approximated by the average temperature of the water film, an effective distance for heating the air in the greenhouse, ζR was determined from the relation between Φav(ζ) and the dimensionless temperature of the greenhouse ΦR and the most suitable thickness of the water film δ could be estimated by plotting Φav (1) against δ with a parameter ΦR, as shown in Fig. 6. The relationship between Φav(1) and δ in Fig. 6 will be also applicable to estimate the suitable flow rate of water. According to the calculated results, the water film performs broadly the task of thermal insulation at the water-roof interface. The corresponding amount of heat to the thermal insulation effect of the water film was given by Eq. (21), theoretically. Figs. 10, 11 and 12 show the over-all heat balance of the water film obtained by Eq. (21) and the amount of heat calculated from Eq. (21) is evaluated quantitatively by the rate of reduction of heating load for heating the greenhouse. Therefore, the analytical solutions and procedures described here are useful for the calculation of actual heat requirement for heating a greenhouse, the design and operations of the practical water curtain system. | |||||
| 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/ | |||||
