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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

[en] SELECTION OF A CARBON FOOTPRINT ESTIMATION METHOD FOR URBAN DISTRIBUTION SERVICES: APPLICATION OF AN HYBRID AHP-TOPSIS METHOD / [pt] ESCOLHA DE UMA METODOLOGIA DE CÁLCULO DA PEGADA DE CARBONO DE SERVIÇOS DE DISTRIBUIÇÃO URBANA: APLICAÇÃO DO MÉTODO HÍBRIDO AHP-TOPSIS

SERGIO RAMIREZ LOPEZ 26 May 2017 (has links)
[pt] A recente conscientização global tem influenciado em grande medida as diferentes atividades empresariais e por isto que, a Logística Verde tem um papel importante na contemporaneidade. O propósito deste trabalho é utilizar métodos de apoio à tomada de decisão multicritério como o AHP e o TOPSIS para escolher a metodologia mais apropriada para realizar a estimativa de Pegada de Carbono de um serviço de entregas de uma empresa de distribuição, neste caso, se aplicou o estudo à Courrieros, que utiliza bicicletas como veículo de transporte na cidade do Rio de Janeiro, e assim, compará-la com o mesmo serviço de entrega realizado com veículos convencionais, como a moto, demonstrando o impacto no meio ambiente. Os resultados indicaram que a metodologia PAS 2050 é a mais recomendada para realizar o cálculo de emissões de GEE deste serviço. De tal forma, calculou-se que ao empregar a motocicleta como veículo de transporte, se produziram 5102,55 kg de CO2e de emissões de GEE no mês de dezembro, ou seja, 10,89 vezes mais emissões do que a empresa Courrieros que ao utilizar a bicicleta, produz somente 468,48 kg de CO2e no mesmo período. Além disso, calculou-se, que é necessário o plantio de três (3) árvores para compensar as emissões geradas pelas bicicletas da empresa Courrieros, diferençando-se amplamente das motocicletas da empresa alternativa, a qual o número aumenta drasticamente para 36 árvores. / [en] The recent global awareness has influenced the different business activities on a large scale and for this reason, the Green Logistics plays an important role in the contemporaneity. The aim of this work is to use methods to support multicriteria decision making such as AHP and TOPSIS to choose the most appropriate methodology to carry out the estimate of the Carbon Footprint for a distribution company, on this case Courrieros, which uses bicycles as a transportation vehicle in the city of Rio de Janeiro, and thus, compare it with the same delivery service using conventional vehicles, as motorcycle, and demonstrating the impact on the environment. Results indicated that the PAS 2050 methodology is the most recommended to perform the calculation of GHG emissions for this service. Therefore, it was estimated that when using a motorcycle as a transport vehicle, 5102.55 kg of CO2e of GHG emissions were produced in December, that is, 10.89 times more emissions than Courrieros using the bicycle, which produced only 468.48 kg of CO2e in the same period. In addition, it has been estimated that three (3) trees need to be planted to compensate for the emissions generated by Courrieros bicycles, differing widely from the bikes of the alternative company, which increases sharply to 36 trees.
2

[pt] O VEÍCULO CONECTADO: PERSPECTIVAS SOBRE A APLICAÇÃO DA INTERNET DAS COISAS NO TRANSPORTE DE CARGA RODOVIÁRIA / [en] THE CONNECTED VEHICULE: PERSPECTIVES ABOUT THE APPLICATION OF THE INTERNET OF THINGS TO ROAD FREIGHT TRANSPORT

LIVIA GOULART TOVAR 24 July 2019 (has links)
[pt] Os desafios acerca do desenvolvimento sustentável impulsionam medidas governamentais e incentivos a empresas que investem em soluções nessa direção. Alinhado a isso, no que se refere ao setor do transporte rodoviário de cargas, os avanços em tecnologia permitem a gestão de frotas eficiente e a maximização dos lucros de empreendedores do setor. A Internet das Coisas é um meio pelo qual é possível se definir indicadores que auxiliam a operação eficiente das empresas e que possibilitam a análise mais precisa de pegada ambiental em diferentes níveis: desde a escala micro, que compreende o veículo e a empresa, até a escala macro, que compreende o setor de transporte de cargas do país. Esse estudo busca levantar indicadores operacionais e ambientais possíveis de serem desenvolvidos a partir de um estudo de caso em que são fornecidos dados enviados de um veículo e seus componentes conectados à internet. / [en] The challenges upon sustainable development drive government actions and incentives to companies that invest in solutions in this direction. In line with this, with regard to the road freight transport sector, advances in technology allow the efficient fleet management and the maximization of entrepreneurs profit. The Internet of Things is a modern mean by which it is possible to define indicators that help the efficient operation of companies and that allow the more accurate analysis of the environmental footprint at different levels: from the micro scale, which comprises the vehicle and the company, to the macro scale, which comprises the country s freight sector. The environment conservation is one of the pillars of sustainability s concept. A development is considered sustainable when it takes into account social, ecological and economic factors (IUCN, 1980). The warranty of economic interest and reduction of environmental impacts caused by the freight transport sector is relevant to the evolution of the logistics in this direction. The concept of logistics is the activity that manages materials and products evolving, beyond other activities, purchasing, transport, distribution, movement, storage and packing. The part of logistics that consider the aspects and impacts caused by its activities is called Green Logistics or Ecologistics (Donato, 2008). The freight transport is one of the most fast-growing sectors in terms of energy consumption and emissions in Brazil (World Bank, 2011a). According to estimations this sector can be emitting 60 percent more CO2 in 2020 than it had in 2009, of which 36 percent from trucking, 13 percent from buses, 40 percent from passenger cars and 3 percent from motocycles (MMA, 2011). There s an interest towards the carbon emission s growing rates from freight transport. Reducing unnecessary travels without impacting the economic growth is one of the fundamental ways to reduce the intensity of emissions (World Bank, 2011b).

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