Browsing by Keyword "Control system"
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Item Challenges of digital industrial furnaces for energy efficiency using syngas from biomass(2018) González-González, Asier; Antolín-Urbaneja, Juan Carlos; Lopez-Guede, Jose Manuel; Tecnalia Research & InnovationIndustrial furnaces, as part of intensive industries, are facing new challenges to increase the efficiency, reliability and flexibility of their processes. They require a considerable amount of energy to accomplish heating and melting processes. Thus, multiple types of research have been focused on the optimisation of the energy consumption to address radical improvements in the competitiveness and energy, environmental, and cost performances at the system level. Furthermore, from a renewable energy perspective, a progressive substitution of natural gas by syngas from gasified biomass require an optimal monitoring and control system to regulate new burners as well as, an appropriate adaptation of existing ones. The use of syngas derived from biomass is not a widespread practice in industrial furnace scenarios. Therefore, this paper shows a brief review of creating a digital pre-heating industrial furnace, addressed from the perspective of monitoring and control system. Also, a precise analytical model divided into four primary sections is proposed: (i) burners system, (ii) isolation structure, (iii) energy recovery system, and (iv) load to be pre-heating. These models provide the foundation for a future hybrid models development to achieve higher efficiency levels using an accurate parametrisation of operational process variables, and a precise maintenance operation strategy. Finally, a broad discussion is exposed.Item Design and integration of WAAM technology and in situ monitoring system in a gantry machine(2017) Artaza, T.; Alberdi, A.; Murua, M.; Gorrotxategi, J.; Frías, J.; Puertas, G.; Melchor, M.A.; Mugica, D.; Suárez, A.; FABRIC_INTEL; FACTORY; ROBOTICA_AUTOMA; Tecnalia Research & Innovation; VISUALWire arc additive manufacturing, WAAM, is a popular wire-feed additive manufacturing technology that creates components through the deposition of material layer-by-layer. WAAM has become a promising alternative to conventional machining due to its high deposition rate, environmental friendliness and cost-competitiveness. In this research work, an adaptation of a gantry machine with in-situ monitoring and a control system has been carried out, in order to expose the ability of the WAAM technology to fabricate complex-shaped parts. The retrofitting of the machine has been done in several layers called respectively hardware, control and software layers. For the validation of the implemented system, a stainless steel 316L demonstrator has been manufactured, and the required stages have been employed, including part design (CAD), process parameters selection, tool-path definition (CAM) and part manufacturing. This study has shown the feasibility of the adapted machine for additive manufacturing as a controlled process.