Effective environmental control technique for the greenhouse using gas heat pump

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450355
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering/Agricultural information engineering
• Research Institution: Kochi University
• Principal Investigator: MIYAUCHI Kiyoshi 高知大学, 教育研究部自然科学系農学部門, 准教授 (80253342)
• Co-Investigator(Renkei-kenkyūsha): YASUTAKE Daisuke 九州大学, 大学院農学研究院, 准教授 (90516113)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ガスヒートポンプ / GHP / 炭酸ガス施用 / 施設園芸

Outline of Final Research Achievements

For the purpose of cost cut, environmental load reduction, and productivity improvement in the small and medium size scale greenhouse horticulture, we devised the effective carbon dioxide supply system using gas heat pump (GHP).By the system, we could keep the carbon dioxide concentration in the greenhouse at the time of the GHP effluent gas circulation than constant concentration and was able to maintain the carbon dioxide concentration in the greenhouse in an arbitrary set point by shutting up a window in the daytime, and running the GHP.For the application of carbon dioxide enrichment efficiently, the local application to the vegetation area,growth turned out good in comparison with the control test area.
From these results, the carbon dioxide application using the GHP effluent gas was effective technique, and it was revealed that we contributed to the improvement of the crops yield in particularly daytime application.

Free Research Field

農業環境工学