Heat Transfer Evaluation of Vertical Farming With Rhizosphere Temperature Control System under Crop Protection Structure in Tropics

カテゴリ: 研究会(論文単位)

論文No: CMN22021

グループ名: 【C】電子・情報・システム部門 通信研究会

発行日: 2022/03/21

タイトル(英語): Heat Transfer Evaluation of Vertical Farming With Rhizosphere Temperature Control System under Crop Protection Structure in Tropics

著者名: sulaiman ahmad syafik(universiti putra malaysia)

著者名(英語): ahmad syafik sulaiman(universiti putra malaysia)

キーワード: heat transfer|crop protection structures|Rhizosphere|temperature control|heat transfer|crop protection structures|Rhizosphere|temperature control

要約(日本語): Rhizosphere temperature control method has become an alternative planting technique for temperate crops plantations in the tropics instead of cooling the ambient environment inside the crop protection structures. In this experiment, the Rhizosphere temperature control system was incorporated with a vertical farming crop planting structure. This structure consisted of five tiers of planting polybag arranged in A-shape design and was placed under an open rain shelter, thus, left it to undergo fluctuating ambient environment temperature. There were five pillow polybags inserted with cocopeat and were placed on the structure. Each pillow polybag consisted of a single pipe that was buried inside the growing media located near the root zone area of the crops. This pipe was connected to the chiller system acted as a cooling agent in controlling the growing media temperature for the crop rhizosphere area. The objectives of the study were to evaluate the Rhizosphere temperature control system performance in distributing and controlling water-dissolved nutrient temperatures to meet crop-root requirement needs. Based on the analysis, the null hypothesis that states that there are no significant differences between rhizosphere zone temperatures at any point in multi-tier structure was accepted. However, the large-scale structure had rhizosphere zone temperature higher than small scale structure around 14%. In addition, the increasing rhizosphere zone temperature would decrease the potential of the system in providing the suitable environment for crop growth. Based on the regression model, RZT = ? 0.005 + 0.596 (Water Temperature) + 0.327 (Environment Temperature) + 0.251 (Soil Moisture Content) + 0.005 (Solar Radiation) ? 0.891 (Wind Speed), several environment parameters could be manipulated to increase the potential of the system.

要約(英語): Rhizosphere temperature control method has become an alternative planting technique for temperate crops plantations in the tropics instead of cooling the ambient environment inside the crop protection structures. In this experiment, the Rhizosphere temperature control system was incorporated with a vertical farming crop planting structure. This structure consisted of five tiers of planting polybag arranged in A-shape design and was placed under an open rain shelter, thus, left it to undergo fluctuating ambient environment temperature. There were five pillow polybags inserted with cocopeat and were placed on the structure. Each pillow polybag consisted of a single pipe that was buried inside the growing media located near the root zone area of the crops. This pipe was connected to the chiller system acted as a cooling agent in controlling the growing media temperature for the crop rhizosphere area. The objectives of the study were to evaluate the Rhizosphere temperature control system performance in distributing and controlling water-dissolved nutrient temperatures to meet crop-root requirement needs. Based on the analysis, the null hypothesis that states that there are no significant differences between rhizosphere zone temperatures at any point in multi-tier structure was accepted. However, the large-scale structure had rhizosphere zone temperature higher than small scale structure around 14%. In addition, the increasing rhizosphere zone temperature would decrease the potential of the system in providing the suitable environment for crop growth. Based on the regression model, RZT = ? 0.005 + 0.596 (Water Temperature) + 0.327 (Environment Temperature) + 0.251 (Soil Moisture Content) + 0.005 (Solar Radiation) ? 0.891 (Wind Speed), several environment parameters could be manipulated to increase the potential of the system.

本誌: 2022年3月24日-2022年3月25日通信研究会

本誌掲載ページ: 31-43 p

原稿種別: 英語

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