nÃo hà / O sistema portuÃrio à elemento-chave para o desenvolvimento macroeconÃmico da sua Ãrea de influÃncia. A avaliaÃÃo de desempenho do setor portuÃrio torna-se fundamental para o monitoramento e o aprimoramento das atividades deste setor para buscar atingir a eficiÃncia. A AnÃlise EnvoltÃria de Dados (Data Envelopment Analysis â DEA) à um mÃtodo baseado em programaÃÃo matemÃtica, que analisa, com base nos recursos (inputs) e produtos (outputs) utilizados em dado processo, a eficiÃncia de um conjunto de unidades tomadoras de decisÃo (Decision Making Units - DMU). O presente trabalho teve como objetivo elaborar e analisar modelo para a mediÃÃo da eficiÃncia dos portos da RegiÃo Nordeste do Brasil, no ano de 2006, adotando o mÃtodo DEA. A seleÃÃo de variÃveis foi feita com auxÃlio do mÃtodo CompensatÃrio de NormalizaÃÃo Ãnica, o qual à determina as variÃveis a serem utilizadas atravÃs do Ãndice S que depende da eficiÃncia mÃdia (relaÃÃo causal) e da quantidade de DMU na fronteira (poder de discriminaÃÃo). Foram analisadas as instalaÃÃes e operaÃÃes de contÃineres e granÃis sÃlidos dos principais portos da RegiÃo Nordeste. Este modelo foi aplicado, por intermÃdio dos programas SIADv3.0, aos 16 portos da regiÃo supracitada, sendo estes analisados por tipo de carga (contÃiner e granel sÃlido). Os resultados obtidos, atravÃs da anÃlise realizada, constataram que 14, dos 16 portos do Nordeste analisados, tÃm instalaÃÃes precÃrias, com exceÃÃo do porto de Salvador, na movimentaÃÃo de contÃineres, e o terminal de âSÃo LuÃs1â, na movimentaÃÃo de granÃis sÃlidos. As variÃveis âberÃoâ e âcaladoâ nos modelos analisados foram as que tiveram maiores valores de pesos e estiveram presentes em vÃrios cenÃrios, ou seja, a eficiÃncia analisada neste estudo tem forte relaÃÃo com as variÃveis citadas. A obtenÃÃo da eficiÃncia portuÃria, efetuada por tipo de carga, auxilia no planejamento de mÃdio e longo prazos, de forma a organizar os portos para aumentar a movimentaÃÃo horÃria e a movimentaÃÃo de cargas, contribuindo, assim, para a eficiÃncia dos terminais. A AnÃlise EnvoltÃria de Dados mostrou-se como mÃtodo que pode contribuir com os tomadores de decisÃes para anÃlise, gestÃo e planejamento no setor portuÃrio / The port system is a key element for the macroeconomic development of its area of influence. The performance evaluation of the port sector becomes fundamental to the monitoring and improvement of the activities of this sector aiming at accomplishing efficiency. The Data Envelopment Analysis â DEA is a method based on mathematic programming which analyzes, based on the inputs and outputs utilized in a certain process, the efficiency of a set of Decision Making Units â DMU. The present work has as a goal to elaborate and analyze models for the efficiency measuring of the ports in Brazilâs northwest in 2006, adopting the DEA method. The variables selection was done with the aid of the Compensatory method of Normalization (Single Parameter), which determines the variables to be utilized through index S that depends on the average efficiency (causal relation) and the quantity of DMU in the frontier (discrimination power). The facilities of containers and solid bulks of the main ports in northwest were analyzed. This model was applied through the programs SIADv3.0 to the sixteen ports of the region above mentioned, being analyzed through the type of load (container and solid bulk). The results obtained through the analysis accomplished verified that among the sixteen ports analyzed in Northwest, fourteen have precarious facilities, except for Salvador port, concerning the containers turnover, and âSÃo LuÃs1â terminal, when it comes to the solid bulks turnover. The variables berth and draught in the models analyzed were the ones which obtained highest values concerning weight and the ones which were present in different scenarios. In other words, the efficiency analyzed in this study has a strong relation to the variables mentioned. The obtaining of the port efficiency executed by the type of load helps in the medium and long-term planning, so that it organizes the ports to increase the timetable turnover and the loads turnover, contributing to the efficiency of the terminals. The Data Envelopment Analysis has proved to be a method which can contribute to the decision makers for analysis, management and planning of the port sector

O desempenho satisfatório da produção e exportação de soja e milho nos últimos anos, e projeções futuras do agronegócio, firmam o Brasil no cenário mundial como um dos maiores produtores e exportadores destas commodities. Para atender a demanda de escoamento das safras nos próximos anos, o Brasil precisará desenvolver e modernizar as rodovias, ferrovias, hidrovias, terminais portuários e plataformas logísticas. A produção das safras dos grãos destinada à exportação, embora cultivadas em épocas distintas, causam em determinados períodos congestionamento nos portos do sul e sudeste. Com a expectativa de crescimento da produção e exportação destas oleaginosas, as plataformas logísticas localizadas no norte e nordeste tornaram-se as principais alternativas para a redução dos custos logísticos no escoamento das safras, apesar de ainda apresentarem deficiências na infraestrutura de transporte. O incentivo ao investimento privado em portos públicos, através de decretos que regulamentam a Lei dos Portos (Lei Nº 12.815/2013), é uma estratégia importante para Governo Federal desenvolver novas rotas logísticas mais eficientes. Posto isso, a pesquisa baseou-se no método Analytic Hierarchy Process (AHP) para identificar e avaliar os principais critérios analisados por decisores na escolha de investimentos, visto as alternativas de arrendamento de área e infraestrutura em porto organizado e implantação de terminal de uso privado. / The satisfactory performance of the production and export of soybean and corn in the last years and future projections of the agribusiness, makes Brazil in the world scenario as one of the biggest producers and exporters of these commodities. In order to meet export demand in the coming years, Brazil will need to develop and modernize highways, railways, waterways, port terminals and logistics platforms. The production of grains for export, although developed at different times, causes in certain periods congestion in the ports of the south and southeast. With the expectation of increasing the production and export of these oleaginous products, the logistic platforms located in north and northeast have become the main alternatives for the reduction of logistical costs, although they still present deficiencies in the transport infrastructure. The encouraging private investment in public ports, through decrees that regulate the Law of Ports (Law Nº 12.815/2013), is an important strategy for the Federal Government to develop new routes and to provide an efficient logistics. Thus, the research was based on the Analytic Hierarchy Process (AHP) method to identify and evaluate the main criteria analyzed by decision-makers in the choice of investments, seeing the alternatives of area and infrastructure leasing in organized port and implementation of private use terminal.

O desempenho satisfatório da produção e exportação de soja e milho nos últimos anos, e projeções futuras do agronegócio, firmam o Brasil no cenário mundial como um dos maiores produtores e exportadores destas commodities. Para atender a demanda de escoamento das safras nos próximos anos, o Brasil precisará desenvolver e modernizar as rodovias, ferrovias, hidrovias, terminais portuários e plataformas logísticas. A produção das safras dos grãos destinada à exportação, embora cultivadas em épocas distintas, causam em determinados períodos congestionamento nos portos do sul e sudeste. Com a expectativa de crescimento da produção e exportação destas oleaginosas, as plataformas logísticas localizadas no norte e nordeste tornaram-se as principais alternativas para a redução dos custos logísticos no escoamento das safras, apesar de ainda apresentarem deficiências na infraestrutura de transporte. O incentivo ao investimento privado em portos públicos, através de decretos que regulamentam a Lei dos Portos (Lei Nº 12.815/2013), é uma estratégia importante para Governo Federal desenvolver novas rotas logísticas mais eficientes. Posto isso, a pesquisa baseou-se no método Analytic Hierarchy Process (AHP) para identificar e avaliar os principais critérios analisados por decisores na escolha de investimentos, visto as alternativas de arrendamento de área e infraestrutura em porto organizado e implantação de terminal de uso privado. / The satisfactory performance of the production and export of soybean and corn in the last years and future projections of the agribusiness, makes Brazil in the world scenario as one of the biggest producers and exporters of these commodities. In order to meet export demand in the coming years, Brazil will need to develop and modernize highways, railways, waterways, port terminals and logistics platforms. The production of grains for export, although developed at different times, causes in certain periods congestion in the ports of the south and southeast. With the expectation of increasing the production and export of these oleaginous products, the logistic platforms located in north and northeast have become the main alternatives for the reduction of logistical costs, although they still present deficiencies in the transport infrastructure. The encouraging private investment in public ports, through decrees that regulate the Law of Ports (Law Nº 12.815/2013), is an important strategy for the Federal Government to develop new routes and to provide an efficient logistics. Thus, the research was based on the Analytic Hierarchy Process (AHP) method to identify and evaluate the main criteria analyzed by decision-makers in the choice of investments, seeing the alternatives of area and infrastructure leasing in organized port and implementation of private use terminal.

Thesis (MScEng)--Stellenbosch University, 2014. / ENGLISH ABSTRACT: South Africa presently faces a serious and much-acknowledged energy capacity deficit. The Department of Energy are determined to address this capacity crisis by creating several new power plants between 2010 and 2030, as stipulated in the “Integrated Resource Plan 2010”. A Combined Cycle Gas Turbine (CCGT) power plant is proposed to add 2370 MW of capacity to the national grid. The “new-build” CCGT plant will use natural gas as a feedstock for energy generation. The plant is destined to begin energy generation by 2019, and will ramp up to full capacity by 2030. Following a review of the existing natural gas sources and the nascent gas network in South Africa, Liquefied Natural Gas (LNG) has been identified as the most suitable immediate source of natural gas feedstock for the CCGT. LNG fuel must be imported into South Africa aboard large, special purpose LNG Carrier (LNGC) vessels. LNGC vessels require a designated marine import terminal in order to offload the super-cooled and potentially flammable cargo. Saldanha Bay, located on the South West coast of South Africa, has been selected by Transnet as a preferred location for LNG terminal development. A review of LNG technology reveals the need for mandatory onshore LNG storage and regasification facilities, land area requirements, demands of different LNGC types and the characteristics of dedicated LNG jetties and terminals. Floating, offshore and traditional LNG terminals are discussed. The objective of this thesis is to review potential terminal sites and conceptual layouts in Saldanha Bay, and via a Multi Criteria Analysis, to present three distinct LNG terminal layout options for further consideration. The conceptual layouts will address technical concerns such as berth orientation and layout, safe navigational access to the terminal, mandatory onshore infrastructure and optimisation of berth operations. Saldanha Bay as a port location is studied and the importance of local environmental features is highlighted. Potential terminal development sites are identified following a review of nautical and terrestrial restrictions. Four conceptual site layouts are proposed, providing jetty locations and orientations in the Bay. The sites are located in North Bay, Hoedjiespunt, and two in Big Bay. Several Key Design Parameters (KDP’s) are identified as having a critical bearing on the ultimate layout, operation and feasibility of an LNG terminal in Saldanha Bay. The sensitivity and influence of the KDP’s at each of the four conceptual sites is investigated. Analysis of KDP effects leads to the development of design variation options at the sites. Twelve terminal layout schemes are ultimately derived. A Multi Criteria Analysis (MCA) is performed to rank the 12 terminal layout schemes in terms of technical efficacy. A sensitivity study is conducted to justify the selection of MCA parameter weights. The three top-scoring schemes are recommended for more detailed pre-feasibility investigation. The three terminal layout schemes, located in Big Bay and Hoedjiespunt, make use of both standard trestle jetties and floating LNG technologies. The thesis has shown that a number of viable sites and layouts for LNG terminals exist in Saldanha Bay and demonstrates a systematic analysis of design issues leading to preferred options. The thesis concludes by outlining the next steps in the process towards a final terminal scheme selection. / AFRIKAANSE OPSOMMING: Suid-Afrika ervaar huidig ‘n drastiese energie kapasiteit verlies. Die Departement van Energie is vasbeslote om die energie krisis aan te spreek deur verskeie nuwe kragstasies tussen 2010 en 2030 op te rig, soos beskryf in die “Integrated Resource Plan 2010”. ‘n Gekombineerde Siklus Gas Turbine (GSGT) kragstasie is voorgestel om ‘n verdere 2370 MW by te voeg tot die nasionale krag netwerk. Die “nuut-geboude” GSGT kragstasie sal natuurlike gas as brandstof vir kragopwekking gebruik. Die kragstasie is beplan om teen 2019 krag op te wek, en sal teen 2030 volle kapasiteit loop. Na ‘n ondersoek van die bestaande natuurlike gas bronne en gas netwerke in Suid Afrika, is Vloeibare Natuurlike Gas (VNG) geïdentifiseer as die huidiglike beskikbare bron van brandstof vir die GSGT. VNG moet ingevoer word aanboord spesiaal geboude VNG vaartuie. VNG vaartuie benodig ‘n spesifieke mariene invoer terminaal om die vlambare vloeistof mee af te laai. Saldanhabaai, aan die Suid-Westerlike kus van Suid Afrika, is as verkose area vir die VNG terminaal ontwikkeling geïdentifiseer deur Transnet. ‘n Oorsig van VNG tegnologie bevind dat VNG stoorplek en vergassings fasiliteite, land area, verskeie VNG vaartuie en karakteristieke van VNG terminale benodig word. Verskeie VNG terminale word bespreek in hierdie studie. The doel van hierdie tesis is om die potensiële terminaal bou-terrein en konseptuele ontwerpe in Saldanhabaai, deur middel van ‘n multi-kriteria analise (MKA), in drie verskillende ontwerp moontlikhede voor te stel. Saldanhabaai, as hawe, is bestudeer en belangrike omgewings aspekte is geïdentifiseer. Potensiële terminaal bou-terrein is geïdentifiseer na aanleiding van seevaart en land beperkings. Vier konseptuele bou-terreine is voorgestel wat jetty posisies en orientasies aandui. Die bou-terreine is in Noordbaai, Hoedjiespunt, en twee in Big Bay. Verskeie Sleutel Ontwerp Parameters (SOP’s), wat ‘n kritieke rol speel in die uiteindelike orientasie, werking en effektiwiteit van die VNG terminaal in Saldanhabaai, is geïdentifiseer. Die sensitiwiteit van die SOP’s by elk van die vier voorgestelde moontlikhede, is ondersoek. ‘n Ontleding van die effek van die SOP’s het variasie in die ontwerp moontlikhede by die verskillende bouterrein tot gevolg. Twaalf terminaal orientasie skemas is voorgestel. ‘n MKA is uitgevoer om ‘n ranglys van opsies te produseer in terme van tegniese effektiwiteit. Dit is voorgestel dat die top drie opsies verder ondersoek moet word. Die drie terminaal orientasie skemas, wat voorgestel word vir die Big Bay en Hoedjiespunt areas, maak gebruik van standaard jetties en drywende VNG tegnologie. Hierdie tesis bevind dat ‘n aantal uitvoerbare bouterreine en orientasies in Saldanhabaai moontlik is. ‘n Sistematiese analise van ontwerps kwessies wat na verkose opsies lei, word ook in die tesis ge-adresser. Die voorgestelde stappe in die besluitneming van ‘n finale terminaal skema vorm die slot van die tesis.