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Abstract(s)
Este trabalho teve como objetivo o estudo de Medidas de Racionalização de Energia (MRE) numa indústria de tratamento superficial de alumínio com consumo anual entre 500 e 1000 toneladas equivalentes de petróleo (tep) e, como tal, registada no Sistema de Gestão dos Consumos Intensivos de Energia (SGCIE). Os processos de fabrico deste caso de estudo são a anodização e a lacagem. Foram abordados conceitos essenciais como a sustentabilidade e a eficiência energética. Foi feito o enquadramento histórico da gestão de energia na indústria portuguesa e na indústria do alumínio. Foi também analisado o paradigma legal e económico relativo à eficiência energética, pelo que foram abordadas as principais certificações, normativas, protocolos e mecanismos de investimento. Os conceitos fundamentais `a compreensão do caso de estudo e das medidas de racionalização foram também abordados. Depois de apresentada a auditoria realizada sobre o caso de estudo, apresentaram-se as medidas. Para além da melhoria da eficiência dos sistemas de iluminação, sistemas de combustão e isolamentos, considera-se necessária a implementação de um sistema de monitorização e gestão de energia que permita a recolha de dados de consumo mais detalhados dos principais equipamentos e/ou secções fabris. Prevê-se que a implementação destas medidas permitirá a redução do consumo em 60,32 tep anuais, correspondente à poupança anual de 33 399 e. O período de retorno de investimento simples para estas medidas ´e de dois anos e dois meses. Ainda assim, mediante a auditoria realizada, verifica-se que o potencial de melhoria da eficiência energética na instalação ´e elevado, principalmente nas áreas de sistemas de combustão e refrigeração, tornando fulcral o estudo de novas medidas nestas áreas, em função de novos dados recolhidos pelo sistema de monitorização e gestão de energia a implementar futuramente.
This thesis aimed at the study of energy rationalization measures in an aluminum surface treatment industrial installation with annual consumption between 500 and 1000 equivalent tons of oil (toe) and, as such, registered in the Portuguese energy intensive consumption management system, SGCIE. The manufacturing processes of this case study are anodizing and powder coating. Key concepts such as sustainability and energy efficiency were addressed. The historical framework of energy management system in the Portuguese industry and in the aluminum industry was made. The legal and economic paradigm related to energy efficiency was also analyzed and the main certifications, regulations, protocols and investment mechanisms were addressed. The fundamental concepts for understanding the case study and rationalization measures were also addressed. After presenting the audit performed on the case study, the measures were presented. In addition to improving the efficiency of lighting equipment, combustion systems and insulation, it is considered necessary to implement a monitoring and energy management system that enables the collection of more detailed consumption data of the main equipment and/or factory sections. The implementation of these measures is expected to reduce consumption by 60,32 toe per year, corresponding to an annual saving of 33 399 e. The simple payback period for these measures is two years and two months. Even so, the audit showed that the potential for improving the energy efficiency of the installation is high, especially in the areas of combustion and cooling systems, making pivotal the study of new measures in these areas, based on the new data collected by the energy monitoring and management system to be implemented in the future.
This thesis aimed at the study of energy rationalization measures in an aluminum surface treatment industrial installation with annual consumption between 500 and 1000 equivalent tons of oil (toe) and, as such, registered in the Portuguese energy intensive consumption management system, SGCIE. The manufacturing processes of this case study are anodizing and powder coating. Key concepts such as sustainability and energy efficiency were addressed. The historical framework of energy management system in the Portuguese industry and in the aluminum industry was made. The legal and economic paradigm related to energy efficiency was also analyzed and the main certifications, regulations, protocols and investment mechanisms were addressed. The fundamental concepts for understanding the case study and rationalization measures were also addressed. After presenting the audit performed on the case study, the measures were presented. In addition to improving the efficiency of lighting equipment, combustion systems and insulation, it is considered necessary to implement a monitoring and energy management system that enables the collection of more detailed consumption data of the main equipment and/or factory sections. The implementation of these measures is expected to reduce consumption by 60,32 toe per year, corresponding to an annual saving of 33 399 e. The simple payback period for these measures is two years and two months. Even so, the audit showed that the potential for improving the energy efficiency of the installation is high, especially in the areas of combustion and cooling systems, making pivotal the study of new measures in these areas, based on the new data collected by the energy monitoring and management system to be implemented in the future.
Description
Keywords
Eficiência energética Sustentabilidade Auditoria energética Medidas de racionalização de energia SGCIE Indústria do alumínio Anodização Lacagem Energy efficiency Sustainability Energy audit Energy conservation measures Energy management systems Metal manufacturing industry Aluminum industry Anodizing Powder coating