Automatic control of biomass gasifiers using fuzzy inference systems

Biomass Downdraft Gasifier Controller Using Intelligent Techniques

“…Since the process of gasification is a highly non-linear and slow process [12], the formation of an accurate model is very difficult .The model must be representing the non-linear dynamic characteristics of the process. The knowledge of experts about biomass gasification can be determined in fuzzy if/then rules in such a way that the fuzzy systems can deal with the indistinguishable and inaccurate biomass condition.…”

“…Here, fuzzy system is modeled with three inputs and two outputs. The three inputs are ErrorT (error in temperature), Error CO/ CO2 and Hp (moisture content) and the output is airflow and frequency of grate [12,[13][14]15].…”

Design of Mathematical Modelling and Control of Downdraft Biomass Gasifier

“…The classical PID controllers are not efficient in controlling the changing dynamics within the system as the initial conditions vary for onset of each new cycle of gasification which results in low performance and efficiency of gas production [8]. Therefore, a well optimized PID controller with graphical user interface has been used nowadays for providing friendly user interface on controlling the system and efficient gas production [9]. The advantage of using PID controllers is to provide better adjustments to control the changing parameters in the non-linear conditions of the gasifying system [10].…”

Low-Cost Syngas Shifting for Remote Gasifiers: Combination of CO2 Adsorption and Catalyst Addition in a Novel and Simplified Packed Structure

“…Moreover, it should be compared with CO, since its composition could decrease when the amount of CO 2 increases [29]. The CO/CO 2 ratio has been considered to be an indicator of the direction that an oxidation process takes between gasification and combustion [30], and as a suitable variable for controlling tasks in gasifiers [31]. The objective of this research is to present an alternative for improving atmospheric gasifiers' performance based on CO 2 adsorption and WGS, maintaining low complexity for construction and operation by inducing both phenomena in a single structure.…”