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Indústria de curtumes: energia e desenvolvimento
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Abstract(s)
Este trabalho, numa fase inicial, teve como pilar fundamental, a optimização energética de uma indústria de curtumes, mais concretamente da empresa Dias Ruivo. Pretendia-se avaliar todos os gastos de energia apresentados pela empresa, com o intuito de verificar se haveria possibilidade de diminuir a factura da electricidade e os custos associados, mantendo a qualidade dos produtos finais. Ainda se pretendia averiguar a viabilidade de reutilização de alguns desperdícios permitindo diminuir a quantidade de energia necessária para o aquecimento de algumas correntes de água. Por último, após os dados recolhidos, sugeriram-se medidas de melhoria, que possibilitariam que a empresa utilizasse os seus recursos de forma optimizada, não apresentando assim gastos desnecessários.
Começando pela análise da factura de electricidade, verificou-se que nos anos de 2010 e 2011, a empresa apresentou um consumo de energia de 120 e 128 tep/ano, respectivamente. Determinaram-se igualmente os respectivos indicadores constatando-se que o valor médio para a intensidade carbónica foi de 900 e 1148 kg CO2/tep e para o consumo específico obteve-se 0,131 e 0,152 kgep/ft2, respectivamente.
Numa segunda fase, tendo em conta a constante aposta da empresa na inovação de artigos em couro e o facto de estar envolvida num projecto mobilizador de ciência e tecnologia com esse fim, o trabalho incidiu no desenvolvimento de um produto inovador designado por floater que deve ser macio e mais leve que os produtos normais.
Com base na aplicação de proteases apropriadas, desenvolveu-se um produto que, ainda na fase de ensaios de bancada e piloto, satisfaz no que respeita à macieza e leveza, sendo que se conseguiu um valor de 67 g/ft2 contra um valor de 75g/ft2 do padrão.
This work, initially, had as cornerstone, the energy optimization of a tanning industry, more particularly the Dias Ruivo. The aim was to assess all energy expenditures submitted by the company in order to ascertain whether there was possibility of reducing electricity bills and associated costs while maintaining quality of final products. Although it was intended to investigate the feasibility of reusing waste allowing some decrease the amount of energy required for heating some water currents. Finally, after the data collected were suggested improvement measures that would allow the company to use its resources optimally, thus presenting no unnecessary spending. Starting with the analysis of the electricity bill, it was found that in the years 2010 and 2011, the company presented a power consumption of 123 and 133 tep/year, respectively. It was also determined the indicators noting that the mean value for the carbon intensity was 757 and 1033 kg CO2/tep and the specific fuel consumption obtained was 0,152 and 0,178 kgep/ft2, respectively. After the energy optimization, taking into account the company's constant commitment to innovation in leather goods and the fact of being involved in a project that mobilizes science and technology to this end, the work focused on developing an innovative product called floater that should be soft and lighter than the normal products on the market. Based on the application of suitable proteases, has developed a product which, even at the stage of pilot tests satisfies with regard to softness and lightness, offering the value of 67 g/ft2 against a value of 75 g/ft2 pattern.
This work, initially, had as cornerstone, the energy optimization of a tanning industry, more particularly the Dias Ruivo. The aim was to assess all energy expenditures submitted by the company in order to ascertain whether there was possibility of reducing electricity bills and associated costs while maintaining quality of final products. Although it was intended to investigate the feasibility of reusing waste allowing some decrease the amount of energy required for heating some water currents. Finally, after the data collected were suggested improvement measures that would allow the company to use its resources optimally, thus presenting no unnecessary spending. Starting with the analysis of the electricity bill, it was found that in the years 2010 and 2011, the company presented a power consumption of 123 and 133 tep/year, respectively. It was also determined the indicators noting that the mean value for the carbon intensity was 757 and 1033 kg CO2/tep and the specific fuel consumption obtained was 0,152 and 0,178 kgep/ft2, respectively. After the energy optimization, taking into account the company's constant commitment to innovation in leather goods and the fact of being involved in a project that mobilizes science and technology to this end, the work focused on developing an innovative product called floater that should be soft and lighter than the normal products on the market. Based on the application of suitable proteases, has developed a product which, even at the stage of pilot tests satisfies with regard to softness and lightness, offering the value of 67 g/ft2 against a value of 75 g/ft2 pattern.
Description
Keywords
Utilização racional de energia Utilidades Optimização Floater Baixa densidade Rational use of energy Utilities Optimization Floater Low density
Citation
Publisher
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto