Climate Control in a Solar Operated Laboratory Greenhouse

Abstract This work shows a study to build up a temperature control for a laboratory scale greenhouse which can be, anyhow, used also for a general case in connection with climate environmental problems. The parameters of the system were identified on the base of measurements inputting with standard signals. The identification shows that heat capacity dependence on ventilation can not be ignored. The constants of PID controller were determined taking into consideration the calculated and the measured parameters. A trial was made to use an empirical approach to the determination of PID controller, as well.