Control of viscosity in different concentrations and temperatures of nutrient solution for hydroponic system

Midori Hikashi, Katsumi Ishikawa, Makito Mori, Daisuke Yasutake

研究成果: ジャーナルへの寄稿記事

抄録

This paper was intended for the investigation of control of viscosity in different concentrations and temperatures of nutrient solution for hydroponic system. In this study, we focused on the water structure of the nutrient solution. Viscosity is one parameter in aqueous solutions. The viscosities measured by digital rotary viscometer in different concentrations and in different temperature of nutrient solutions. As a result, the viscosities increased with increasing electric conductivity (EC) of nutrient solution. The viscosity of EC5 (EC 16.31 dS/m) was 1.239 mPa·s at 25 ° C. In different temperature, the viscosity of nutrient solution at 5.5 °C (1.540 mPa·s) was significantly higher than the viscosity at 35 °C (1.136 mPa·s). In conclusion, the result indicate that the liner increase in viscosity with increasing concentration of ions for nutrient solution. Moreover, the viscosities of nutrient solution were correlated with water temperature. These results suggest that the viscosity can be used for control of nutrient solution to cultivate in hydroponic system.

元の言語英語
ジャーナルIFAC Proceedings Volumes (IFAC-PapersOnline)
1
発行部数PART 1
出版物ステータス出版済み - 1 1 2013
外部発表Yes

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Viscosity
Temperature
Viscometers
Water
Ions

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering

これを引用

Control of viscosity in different concentrations and temperatures of nutrient solution for hydroponic system. / Hikashi, Midori; Ishikawa, Katsumi; Mori, Makito; Yasutake, Daisuke.

:: IFAC Proceedings Volumes (IFAC-PapersOnline), 巻 1, 番号 PART 1, 01.01.2013.

研究成果: ジャーナルへの寄稿記事

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