To tackle the increasingly severe effects of climate change, we focus our project on protected agriculture (greenhouse) as a means to realize a carbon-neutral and decarbonized society. Despite the high productivity, conventional greenhouses are considered problematic regarding CO2 emissions. To get both increased productivity and sustainability, we are working on achieving the following two goals to develop an innovative “smart CO2 capture and utilization system” based on the CO2 capture (separation), storage, and utilization technologies:
The primary goals of this project are:
Goal 1: Improvement and verification of system for recovery, storage, and utilization of CO2 gas exhausted from a greenhouse heater,
Goal 2: Development of a system for recovery and utilization of leaked CO2 gas associated with artificial CO2 enrichment
These goals will be achieved through start-up cocreation research by the Faculty of Agriculture, Faculty of Engineering, and International Institute for Carbon-Neutral Energy Research (Kyushu university). We aim to demonstrate a medium-term policy for practical application and technology dissemination, including economic feasibility. This module research will contribute to meeting the societal challenge of climate change (sustainability) and food production (smart agriculture) innovation.
Schematic image of the research concept
The recovery, storage, and utilization of CO2 gas exhausted from a greenhouse heater (goal 1) are based on the original technology developed at Kyushu University. Further, the system that recovers and reuses leaked CO2 gas under CO2 enrichment conditions (goal 2) is expected to be the first technology to achieve combined ventilation and CO2 enrichment in the greenhouse.
Faculty of Agriculture
Evaluation of effects of the systems (goals 1 and 2) by environmental and plant eco-physiological measurements and CFD analysis, and project management
Faculty of Engineering
Development and improvement of the system for recovery, storage, and utilization of CO2 gas exhausted from a greenhouse heater
Faculty of Agriculture
Evaluation of the system for recovery, storage, and utilization of CO2 gas exhausted from a greenhouse heater
Development and improvement of the system for recovery and utilization of leaked CO2 gas associated with CO2 enrichment
This project is expected to improve productivity and sustainability in protected horticulture by applying innovative CO2 recovery and utilization technologies. Primarily, we would like to achieve the prototyping of the systems and clarify their effectiveness and improvement through the acquisition of essential data and strengthening of co-creative collaboration. Furthermore, based on the results obtained, we would like to develop the project up to the establishment of practical smart systems that can be controlled according to greenhouse conditions. In the subsequent phase, we believe the system will be developed and used for demonstration tests in the protected agricultural field.
Zhang Y., Yasutake D., Hidaka. K., Okayasu T., Kitano M., Tomoyoshi H.
Journal of Cleaner Production, 371, 133465
In Figure: (a) CO2 generator, (b) components of the Local Enrichment system , (c) transport tubes used for CO2 gas delivery inside the greenhouse , and (d) perforated tube inside the crop canopy.
Hidaka K., Nakahara S., Yasutake D., Zhang Y., Okayasu T., Dan K., Kitano M. and Sone K.
Scientia Hotriculture, 301, 111104
Hoshino Y., Gyobu T., Imamura K., Hamasaki A., Honda R., Horii R., Yamashita C., Terayama Y., Watanabe T., Aki S., Liu Y., Matsuda J., Miura Y., Taniguchi I.
ACS Applied Materials & Interfaces, 13, 30030-30038
Honda R., Hamasaki A., Miura Y. Hoshino Y.
Polymer Journal, 53, 157-167