Article ID Journal Published Year Pages File Type
716536 IFAC Proceedings Volumes 2013 5 Pages PDF
Abstract

Concentration of CO2 in the atmosphere is not all consumed by the photosynthesis process of plants, and affects the productivity of crops to a large degree. In fact, this element as well as water is a major component not only with regard to photosynthesis but also for the increase of the productivity (in dry-weight) and quantity of greenhouse crops within facilities. Efficiency is a key factor in the use of CO2 since its use may incur a lot of expenses. Thus, CO2 fertilization, taking into consideration the temperature inside the greenhouse improves the productivity of the crop, On the other hand, excessive CO2 fertilization only brings about problems that require attention to the trend. The experiment was conducted to check the distribution of CO2 according to thermal buoyancy within the greenhouse. The content of CO2 and changes in the temperature based on the area within the greenhouse were measured, and the appropriate level of CO2 and a mass of CO2 concentrated at a certain spot were analyzed to verify the relation between CO2 and the temperature as in order for a constant distribution over the facility. As a result, the temperature at each point and the distribution of CO2 were measured, and it turned out that the temperature was in inverse proportion to the change in CO2.

Related Topics
Physical Sciences and Engineering Engineering Computational Mechanics