Development of an integrated simulation model by combining environment control with plant growth in a modern greenhouse

2015 Fiscal Year Final Research Report

• Project/Area Number: 24380136
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering
• Research Institution: Chiba University
• Principal Investigator: Goto Eiji 千葉大学, 園芸学研究科, 教授 (00186884)
• Co-Investigator(Kenkyū-buntansha): Hikosaka Shoko 千葉大学, 大学院園芸学研究科, 准教授 (50345188) ; Ishigami Yasuhiro 千葉大学, 大学院園芸学研究科, 助教 (50361415) ; Okushima Limi 独立行政法人農業・食品産業技術総合研究機構, 農村工学研究所, 上席研究員 (10373226)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 施設園芸 / 温室 / シミュレーション / 暖房 / 冷房 / 細霧冷房 / 熱収支モデル / 植物生育モデル

Outline of Final Research Achievements

To predict greenhouse environments under given weather conditions, we developed an integrated model for greenhouse climates by using the transient system simulation program (TRNSYS). TRNSYS includes many of the components for thermal and electrical energy systems. We modified and added components that modeled ventilation, shading, heating, evaporation cooling, and evapotranspiration, and calculated the heat energy balance necessary for predicting inside air temp. and humidity. We evaluated the developed model by using an greenhouse and applied the model to greenhouses under various climatic conditions in different countries. We estimated the energy required for heating and/or cooling and CO2 and water in order to control the internal environmental conditions at the targeted values under given weather conditions. The study indicates that the model is an effective tool for making strategic decisions in the installation of greenhouses from the viewpoint of energy and resource application.

Free Research Field

植物環境工学