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Avaliação da Pegada Carbónica da Oficina de Motores da TAP e Desenvolvi- mento de uma Ferramenta de Cálculo
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Esta dissertação de mestrado focou-se no estudo das alterações climáticas e na impor-
tância deste tema para governos e instituições, que têm a responsabilidade de desacelerar
os fenómenos que afetam o planeta e a humanidade. O objetivo foi analisar a pegada de
carbono da oficina de motores da TAP ME, através da recolha e análise de dados.
O estudo seguiu as metodologias do GHG Protocol, com a definição dos scopes, e da
norma ISO 14064. O scope 1, inclui emissões diretas de gases de efeito estufa resultantes de
fontes controladas pela empresa. O scope 2, abrange emissões indiretas associadas ao con-
sumo de eletricidade. O scope 3, engloba todas as outras emissões indiretas, normalmente
associadas à cadeia de valor, provenientes das atividades da organização.
Os resultados mostraram consumos anuais de 1150,7 MWh de eletricidade, 327455
m3 de gás natural e 335,2 toneladas de jet fuel. Foram geradas 36,5 toneladas de resíduos,
sendo 90,2% considerados perigosos. O consumo total de materiais foi de 121,4 toneladas,
com os químicos representando 50,7% deste total.
As emissões totais de CO2eq da oficina de motores, em 2023, foram de 2591 toneladas.
O scope 1 representou 67% das emissões, o scope 2 representou 9% e o scope 3 representou
24%. Comparando com outras empresas do setor, o consumo de eletricidade foi inferior
ao esperado, enquanto a distribuição de emissões por scope foi semelhante a outras
companhias aéreas com atividade de manutenção e reparo.
Foram propostas quatro medidas para reduzir a pegada carbónica, sendo estas a
implementação de painéis solares fotovoltaicos, a transição para energia 100% renovável,
a substituição do gás natural por biometano e a substituição das folhas de papel normal
por folhas de papel reciclado.
A dissertação resultou na criação de uma ferramenta de cálculo, permitindo uma
fácil introdução de dados e análise automática dos resultados de consumo e emissões de
CO2eq. Recomenda-se para trabalhos futuros uma análise mais detalhada de cada scope,
especialmente o scope 3, para obter uma estimativa mais realista e fidedigna.
This master’s dissertation focused on the study of climate change and the importance of this topic for governments and institutions, which have the responsibility to slow down the phenomena that affect the planet and humanity. The objective was to analyze the carbon footprint of the engine workshop at TAP ME, through the collection and analysis of data. The study followed the methodologies of the GHG Protocol, with the definition of the scopes, and the ISO 14064 standard. Scope 1 includes direct greenhouse gas emissions resulting from sources controlled by the company. Scope 2 encompasses indirect emissions associated with electricity consumption. Scope 3 includes all other indirect emissions, typically associated with the value chain, arising from the organization’s activities. The results showed annual consumption of 1150.7 MWh of electricity, 327,455 m3 of natural gas, and 335.2 tons of jet fuel. A total of 36.5 tons of waste was generated, with 90.2% considered hazardous. The total material consumption was 121.4 tons, with chemicals representing 50.7% of this total. The total CO2eq emissions from the engine workshop in 2023 were 2591 tons. Scope 1 accounted for 67% of the emissions, scope 2 accounted for 9%, and scope 3 accounted for 24%. Compared to other companies in the sector, the electricity consumption was lower than expected, while the distribution of emissions by scope was similar to other airlines with maintenance and repair activities. Four measures were proposed to reduce the carbon footprint: the implementation of photovoltaic solar panels, the transition to 100% renewable energy, the substitution of natural gas with biomethane, and the substitution of regular paper with recycled paper. The dissertation resulted in the creation of a calculation tool, allowing for easy data input and automatic analysis of consumption and CO2eq emissions results. It is recom- mended for future work to conduct a more detailed analysis of each scope, especially scope 3, to obtain a more realistic and reliable estimate.
This master’s dissertation focused on the study of climate change and the importance of this topic for governments and institutions, which have the responsibility to slow down the phenomena that affect the planet and humanity. The objective was to analyze the carbon footprint of the engine workshop at TAP ME, through the collection and analysis of data. The study followed the methodologies of the GHG Protocol, with the definition of the scopes, and the ISO 14064 standard. Scope 1 includes direct greenhouse gas emissions resulting from sources controlled by the company. Scope 2 encompasses indirect emissions associated with electricity consumption. Scope 3 includes all other indirect emissions, typically associated with the value chain, arising from the organization’s activities. The results showed annual consumption of 1150.7 MWh of electricity, 327,455 m3 of natural gas, and 335.2 tons of jet fuel. A total of 36.5 tons of waste was generated, with 90.2% considered hazardous. The total material consumption was 121.4 tons, with chemicals representing 50.7% of this total. The total CO2eq emissions from the engine workshop in 2023 were 2591 tons. Scope 1 accounted for 67% of the emissions, scope 2 accounted for 9%, and scope 3 accounted for 24%. Compared to other companies in the sector, the electricity consumption was lower than expected, while the distribution of emissions by scope was similar to other airlines with maintenance and repair activities. Four measures were proposed to reduce the carbon footprint: the implementation of photovoltaic solar panels, the transition to 100% renewable energy, the substitution of natural gas with biomethane, and the substitution of regular paper with recycled paper. The dissertation resulted in the creation of a calculation tool, allowing for easy data input and automatic analysis of consumption and CO2eq emissions results. It is recom- mended for future work to conduct a more detailed analysis of each scope, especially scope 3, to obtain a more realistic and reliable estimate.
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Sustentabilidade Gases de efeito estufa Motores de aeronaves Pegada de carbono