Autor(es):
Farrero, Bernardo ; Babo, Pedro ; Ribeiro, Luís Frölén
Data: 2025
Identificador Persistente: http://hdl.handle.net/10198/36658
Origem: Biblioteca Digital da UPB
Projeto/bolsa:
info:eu-repo/grantAgreement/FCT/PRIMA Section 2 - 2022/PRIMA/0005/2022/PT;
Assunto(s): CO2 Laser; Food processing; Smart carving; Acorn shelling; Automation
Descrição
The application of CO₂ laser technology in food processing has gained significant attention due to its precision and adaptability. This study presents an intelligent system for carving hard-shell fruits, specifically acorns, to facilitate their shelling process. The proposed approach integrates real-time control and monitoring technologies to enhance precision and efficiency. A key challenge in acorn processing is the size and shell thickness variability, which complicates mechanical carving. The developed system employs a CO₂ laser to create precise incisions, ensuring optimal shell cracking during dehydration while preventing kernel damage. Experimental tests conducted at the Polytechnic Institute of Bragança identified optimal parameters—6 seconds of laser exposure at 40 power—for consistent and controlled carving. A thoughtful analysis system was implemented to assess pre- and post-carving conditions, enabling real-time adjustments to laser settings. This self-optimizing process improves the efficiency of the shell carving while reducing waste. The results demonstrate the feasibility of automated acorn carving using CO₂ laser technology, offering a scalable solution for industrial food processing with continuous control of the shell incision. Future research could explore advanced automation techniques to enhance system robustness and adaptability to different fruit types.