BORGES, Felipe da Rocha. Expansão metropolitana de Fortaleza e a produção do espaço de Pecém - São Gonçalo do Amarante - CE. 2014. 127 f. Dissertação (Mestrado em geografia)- Universidade Federal do Ceará, Fortaleza-CE, 2014. / Submitted by Elineudson Ribeiro (elineudsonr@gmail.com) on 2016-06-10T17:51:55Z No. of bitstreams: 1 2014_dis_frborges.pdf: 2277119 bytes, checksum: 1625927f35b8b7f744536d470736fd17 (MD5) / Approved for entry into archive by José Jairo Viana de Sousa (jairo@ufc.br) on 2016-06-10T17:55:51Z (GMT) No. of bitstreams: 1 2014_dis_frborges.pdf: 2277119 bytes, checksum: 1625927f35b8b7f744536d470736fd17 (MD5) / Made available in DSpace on 2016-06-10T17:55:51Z (GMT). No. of bitstreams: 1 2014_dis_frborges.pdf: 2277119 bytes, checksum: 1625927f35b8b7f744536d470736fd17 (MD5) Previous issue date: 2014 / In the last two decades, the Ceará pass through socio-spatial transformations caused by State strategies to modernize the production structure and enter the global economy. The investments concentrate on three points: tourism, agribusiness and industry. From this State strategies have been installed in Pecém, São Gonçalo do Amarante district, city member of the member of the Metropolitan Region of Fortaleza (RMF), one port and one industrial complex, that induced the metropolitan expansion to the west the RMF. The district has shown significant changes, characteristics of spaces into the metropolitan dynamic. The objective of this research was to analyze the changes in urban structure of Pecém, considering the diverse agents producers of space. Was made a periodization to help the identify the processes and their consequences in Pecém space. Was identify three periods: stage before port construction (1950 - 2000), where Pecém was a fishing village and summer vacation; stage port construction and consolidation (2000 - 2006), period with a lot of attraction of workers, causing reduction of summer vacation and the emergence new spatial dynamics; and the consolidation stage of the industrial complex (2006 -2013), the changes are intensified from the installation of the first industry and the attraction of construction workers to the Companhia Siderúrgica do Pecém (CSP) works. The current Pecém urban structure guard particularities of the stages previous as it results and interfere in social processes that are dynamic. / Nas duas últimas décadas, o Ceará passa por transformações socioespaciais provocadas por estratégias do Estado para modernizar sua estrutura produtiva e se inserir cada vez mais no mercado global. Os investimentos se concentram em três eixos: turismo, agronegócio e indústria. A partir desta estratégia do Estado foram instalados em Pecém, distrito de São Gonçalo do Amarante, município integrante da Região Metropolitana de Fortaleza (RMF), um porto e um complexo industrial, que induziram a expansão da metrópole para a zona oeste da RMF. O citado distrito tem apresentado transformações significativas, característica dos espaços inseridos na dinâmica metropolitana. Neste contexto, o objetivo da pesquisa foi analisar as transformações na estrutura urbana de Pecém, considerando os diferentes agentes que atuam na produção do espaço. Foi realizada uma periodização para auxiliar a identificação dos processos e seus desdobramentos no espaço do citado distrito. Foram identificados três períodos: fase anterior à construção do porto (1950 - 2000), onde Pecém era uma vila de pescadores e destino de vilegiaturistas; fase de construção e consolidação do porto (2000 - 2006), período no qual há grande atração de trabalhadores, provocando a redução da vilegiatura e o surgimento de novas dinâmicas espaciais; e fase de consolidação do complexo industrial (2006 - 2013), no qual as transformações são intensificadas a partir da instalação das primeiras indústrias e da atração de trabalhadores da construção civil para as obras da Companhia Siderúrgica do Pecém (CSP). A estrutura urbana atual de Pecém guarda particularidades dos períodos anteriores, à medida que ele resulta/interfere em processos sociais que são dinâmicos.

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / In the last two decades, the Cearà pass through socio-spatial transformations caused by State strategies to modernize the production structure and enter the global economy. The investments concentrate on three points: tourism, agribusiness and industry. From this State strategies have been installed in PecÃm, SÃo GonÃalo do Amarante district, city member of the member of the Metropolitan Region of Fortaleza (RMF), one port and one industrial complex, that induced the metropolitan expansion to the west the RMF. The district has shown significant changes, characteristics of spaces into the metropolitan dynamic. The objective of this research was to analyze the changes in urban structure of PecÃm, considering the diverse agents producers of space. Was made a periodization to help the identify the processes and their consequences in PecÃm space. Was identify three periods: stage before port construction (1950 - 2000), where PecÃm was a fishing village and summer vacation; stage port construction and consolidation (2000 - 2006), period with a lot of attraction of workers, causing reduction of summer vacation and the emergence new spatial dynamics; and the consolidation stage of the industrial complex (2006 -2013), the changes are intensified from the installation of the first industry and the attraction of construction workers to the Companhia SiderÃrgica do PecÃm (CSP) works. The current PecÃm urban structure guard particularities of the stages previous as it results and interfere in social processes that are dynamic. / Nas duas Ãltimas dÃcadas, o Cearà passa por transformaÃÃes socioespaciais provocadas por estratÃgias do Estado para modernizar sua estrutura produtiva e se inserir cada vez mais no mercado global. Os investimentos se concentram em trÃs eixos: turismo, agronegÃcio e indÃstria. A partir desta estratÃgia do Estado foram instalados em PecÃm, distrito de SÃo GonÃalo do Amarante, municÃpio integrante da RegiÃo Metropolitana de Fortaleza (RMF), um porto e um complexo industrial, que induziram a expansÃo da metrÃpole para a zona oeste da RMF. O citado distrito tem apresentado transformaÃÃes significativas, caracterÃstica dos espaÃos inseridos na dinÃmica metropolitana. Neste contexto, o objetivo da pesquisa foi analisar as transformaÃÃes na estrutura urbana de PecÃm, considerando os diferentes agentes que atuam na produÃÃo do espaÃo. Foi realizada uma periodizaÃÃo para auxiliar a identificaÃÃo dos processos e seus desdobramentos no espaÃo do citado distrito. Foram identificados trÃs perÃodos: fase anterior à construÃÃo do porto (1950 - 2000), onde PecÃm era uma vila de pescadores e destino de vilegiaturistas; fase de construÃÃo e consolidaÃÃo do porto (2000 - 2006), perÃodo no qual hà grande atraÃÃo de trabalhadores, provocando a reduÃÃo da vilegiatura e o surgimento de novas dinÃmicas espaciais; e fase de consolidaÃÃo do complexo industrial (2006 - 2013), no qual as transformaÃÃes sÃo intensificadas a partir da instalaÃÃo das primeiras indÃstrias e da atraÃÃo de trabalhadores da construÃÃo civil para as obras da Companhia SiderÃrgica do PecÃm (CSP). A estrutura urbana atual de PecÃm guarda particularidades dos perÃodos anteriores, à medida que ele resulta/interfere em processos sociais que sÃo dinÃmicos.

Thesis (MScEng) --University of Stellenbosch, 2010. / ENGLISH ABSTRACT: This thesis deals with the development of a new process for the production of Direct Reduced Iron (DRI), intended for use specifically by small scale Electric Arc Furnace (EAF) based steel mills, who require small volumes of DRI. The term development as used here is taken to include such aspects as conceptual design, theoretical verification and initial practical testing. The rise of EAF steelmaking brought about the metamorphosis of steel scrap from a waste product into a valuable raw material. Scrap prices rose steeply during the period 1995 to 2009 compelling EAF steelmakers, wishing to have more control over the cost of their input material, to seek for scrap supplements or alternatives. DRI has become an accepted and sought after supplement, or even complete alternative, to steel scrap. Adding DRI to an EAF charge has a range of advantages, including the dilution of tramp elements and possible cost benefits, but it does have negative effects. These include the lowering of the scrap to liquid metal yield and an increase in power consumed. The effect of charging DRI to a small EAF is quantified. The maximum DRI that may be added to the burden whilst still maintaining the present steelmaking volume, is shown to be as high as 50% if charged continuously, and the maximum price payable for DRI, is shown to be approximately 80% of base grade scrap price. Finally other requirements unique to small scale EAF operators are considered in order to prepare a schedule of requirements for a DRI plant specifically for small scale EAF steel mills. A review of published information on existing DRI production technology, processes and plants is undertaken is establish the fit of existing processes to the requirements set. Initially the thermodynamics and kinetics of iron ore reduction and coal gasification, specifically downdraft gasification are reviewed. Thereafter existing processes are reviewed. Shaft based processes and rotary kiln based processes are identified as possible suitors to the requirements. Limitations of these processes, specifically heat transfer in rotary kilns and the pressure drop over a reduction shafts are investigated. Finally a typical process in each of the main process classes is adjudicated against the set requirements. None is found to match the set requirements. A new process is proposed that is claimed to better suit to small scale operation. The uniqueness of the process is embodied in the combination of existing technologies of downdraft gasification and iron ore reduction in a shaft, in a single reactor. The process consists of two shafts, one placed above the other. Iron ore is charged into the top shaft, called the pre-heat shaft, where it is pre-heated and lightly reduced to wustite with gas from the bottom shaft, called the reduction shaft. The pre-heated ore is then charged together with coal into the reduction shaft. Gasification air is drawn into the top of the reduction shaft where the coal is gasified in a downdraft gasifier, generating reduction gas which reduces the ore as the gas moves concurrently with the iron ore. The exit gas is cleaned and pumped to the pre-heat shaft where it combusted with air to pre-heat the iron ore in the pre-heat shaft. The concept is analysed thermodynamically using amongst others, FactSage, and is shown to be thermodynamically viable. To test the concept process concept practically, an extremely small pilot plant with a production rate of 2kg DRI/h, consisting of only a gasifier/reduction shaft, was designed and constructed using reduction rate data obtained from literature supplemented with data obtained from thermogravimetric analysis of CO reduction of lump Sishen hematite. Pilot Plant trials were performed using various reductant sources. The degree of metallizaion was analysed using visual inspection of cut and polished samples compared to calibrated standards. Analysis of the results indicate that coal rate and production rate influence the degree of reduction positively and negatively. The conclusions arrived at include the fact that the process is thermodynamically viable, that it was possible to reduce iron ore in a simplified pilot plant, and that the process was found to be stable and controllable. It is recommended that a larger scale pilot plant, embodying the full proposed flow sheet be erected to test the process more completely. / AFRIKAANSE OPSOMMING: Die tesis handel oor die the ontwikkeling van ‘n nuwe proses vir die vervaardiging van sponsyster. Die proses is beoog spesifiek vir gebruik deur kleinskaalse Elektriese Boogoond (EBO) gebaseerde staal aanlegte, wat kleiner hoeveelhede sponsyster benodig. Die term ontwikkeling soos hier gebruik word aanvaar om aspekte soos konseptuele ontwerp, teoretiese verifikasie en aanvanklike toetsing te behels. Die vinnige groei van EBO staalvervaardiging het skroot getransformeer van weggooiproduk tot waardevolle grondstof. Die prys van skroot het skerp gestyg gedurende die periode 1995 to 2009. EBO gebaseerde staal produsente, in ‘n poging om meer beheer te hê oor die koste van hul insetmateriaal, het hul in ‘n toenemende mate tot skrootalternatiewe gewend. Sponsyster het ‘n aanvaarde en gewaardeerde byvoeging, en selfs alternatief tot staalskroot geword. Die byvoeging van sponsyster by die lading van ‘n tipiese EBO het besliste voordele, maar het dit ook nadelige effekte. Die voordele sluit die verdunning van reselemente en moontlike kostevoordele in, terwyl van die nadele die verlaging van die skroot tot vloeistaal opbrengs, en ‘n verhoging in kragverbruik, is. Die effek van die byvoeging van sponsyster tot ‘n EBO lading word gekwantifiseer. Daar word getoon dat die maksimum hoeveelheid sponsyster wat by ‘n EBO lading gevoeg kan word terwyl die hoeveelheid staal geproduseer konstant gehou word, ongeveer 50% is indien die sponsyster kontinue gelaai word, en die maksimum prys wat vir die sponsyster betaal kan word, word bereken op ongeveer 80% van die prys van basisgraad skroot. Ander vereistes uniek aan kleinskaal EBO bedrywers word oorweeg ten einde ‘n lys van vereistes vir ‘n sponsysteraanleg, uniek aan kleinskaal EBO bedrywers, te kan bepaal. ‘n Oorsig van gepubliseerde inligting oor sponsysterproduksietegnologie word onderneem ten einde die passing van bestaande prosesse met die gestelde vereistes te kan bepaal. Nadat die termodinamika en kinetika van ysterertsreduksie en steenkoolvergassing be-oordeel is, word bestaande sponsysterprosesse beskou. Skag- en Roterende oond gebaseerde prosesse word as moontlik gepaste prosesse identifiseer. Hitte-oordrag en die drukval oor gepakte beddens, synde tipiese beperkings eie aan die twee prosesse, woord beskou. Tipiese prosesse in elk van die hoofklasse van prosesse word ten laaste be-oordeel aan die gestelde kriteria. Daar word bevind dat geeneen van die bestaande prosesse aan die vereistes voldoen nie. ‘n Nuwe proses, wat skynbaar die behoefte van kleinskaalse EBO gebaseerde staalprodusente beter bevredig, word voorgestel. Bestaande tegnolgie word in ‘n unieke opstelling geïntegreer. Reduksie word in ‘n reduksiekag gedoen as gevolg van die ooglopende massa- en hitte-oordragvoordele van ‘n skag. Reduksiegas word verkry van steenkoolvergassing in ‘n afstroomvergasser ten einde teerverwydering in ‘n naverwerkingsstap oorbodig te maak. Die uniekheid van die proses is beliggaam in die kombinasie van ‘n steenkoolvergasser en reduksieskag in ‘n enkele reaktor. Die proses bestaan uit twee skagte, een bo die ander. Ystererts word in die boonste skag, wat die voorverhitskag genoem word, gelaai. Hier word die erts voorverhit en moontlik lig gereduseer tot wustiet met gas van die onderste skag, wat die reduksieskag genoem word. Die voorverhitte erts word saam met steenkool in die reduksieskag gelaai. Vergassingslug, word in die reduksieskag gesuig waar die steenkool in ‘n afstroomvergasser vergas word. Hierdeur word reduksiegas gegenereer wat die erts verder reduseer soos dit saamstromend met die erts af beweeg. Die uitlaatgas word gesuiwer en na die voorverhitskag gepomp waar dit verbrand word om die erts te voorverhit. Die konsep is termodinamies analiseer met gebruikmaking van onder andere FactSage, en werkbaar bevind. ‘n Baie klein, vereenvoudigde proefaanleg, met ‘n produksievermoë van 2kg DRY/uur, bestaande uit slegs ‘n reduksiekag, is ontwerp en gebou met gebruikmaking van kinetika inligting uit die literatuur aangevul met inligting uit termogravimetriese analise van die CO reduksie van Sishen hematiet. Proefaanleglopies is uitgevoer met ‘n reeks reduktantbronne. Die metallisasiegraad is bepaal deur visuele inspeksie van gesnyde, gepoleerde monsters wat vergelyk is met gekalibreerde standaarde. Analise van die resultate toon dat die steenkoolkoers ‘n positiewe verband, en die produksiekoers ‘n negatiewe verband met die metallisasiegraad het. Die slotsom waartoe gekom is, is dat die proses termodinamies werkbaar is, dat reduksie van ystererts in ‘n vereenvoudigde proefaanleg bewerk kon word, en dat die prose stabiel en beheerbaar voorgekom het. Die aanbeveling word gemaak dat ‘n groter proefaanleg wat die volledige voorgestelde vloeiskema verteenwoordig, opgerig behoort te word, ten einde die proses meer volledig te kan toets.

Submitted by JOSIANE SANTOS DE OLIVEIRA (josianeso) on 2017-08-07T16:29:12Z No. of bitstreams: 1 Karrario Ferreira da Silva_.pdf: 745800 bytes, checksum: 213c38355c2c8c4e07eae1732228c265 (MD5) / Made available in DSpace on 2017-08-07T16:29:12Z (GMT). No. of bitstreams: 1 Karrario Ferreira da Silva_.pdf: 745800 bytes, checksum: 213c38355c2c8c4e07eae1732228c265 (MD5) Previous issue date: 2017-05-30 / Nenhuma / Este pesquisa tem como objetivo apresentar ao leitor o impacto na situação econômica e financeira das empresas brasileiras do setor siderúrgico, decorrentes da crise do mercado mundial de aço. Esta pesquisa é de grande relevância para a infraestrutura do país, setores da economia como: (indústria de transformação, indústria de base, construção civil e também o setor automobilístico e os segmentos de máquinas e equipamentos) são os maiores consumidores de aço aqui produzido, estes representam 80% do consumo de aço no país e estão em desaceleração. A pesquisa caracteriza se como: quantitativa, descritiva e documental. Para o desenvolvimento da pesquisa foram coletados dados referentes aos anos de 2001 a 2015, divididos em dois períodos distintos, sendo o primeiro período 2001 a 2007, antes da crise de 2008/9, e o segundo período após a crise 2010 a 2015. A amostra contou com 10 companhias abertas listadas na BM&FBOVESPA e com dados disponíveis na economática. Foram usados 11 indicadores econômico-financeiros de rentabilidade, liquidez, endividamento e capital de giro. Os indicadores financeiros foram: (Retorno sobre os Ativos [ROA]; Retorno sobre Patrimônio Líquido [ROE]; Liquidez Corrente; Liquidez Geral, Endividamento a Curto Prazo e Endividamento a Longo Prazo). (Os Indicadores econômicos foram: (Lucros antes de juros, impostos, depreciação e amortização EBITDA; Tesouraria (T); Capital de Giro (CG); Necessidade de Capital de Giro (NCG)) e a Margem Liquida (MG). Destacaram-se um indicador financeiros de rentabilidade o ROA e 3 três indicares econômicos de rentabilidade, ROE, Margem Liquida, EBITDA, que deram resultados estatisticamente significantes a 5%. Os resultados das análises dos indicadores apontam que os lucros auferidos pelos empresários e acionistas das siderúrgicas diminuíram consideravelmente em relação ao primeiro período analisado. A taxa de retorno gerada nas aplicações das siderúrgicas foi impactada de forma negativa e que a produtividade e a eficiência econômica das siderúrgicas bem como a quantidade de recursos gerados por meio de suas atividades operacionais foram impactadas economicamente, de forma negativa pela crise de 2008/9 e pelo excesso de produção de aço. / The objective of this study was to analyze the impact on the economic situation and financial position of Brazilian companies in the steel sector, arising from the crisis of the global market for steel. The research is characterized as: Quantitative, descriptive and documentary. For the development of the research data were collected for the years 2001 to 2015, divided into two distinct periods, being the first period 2001/7, before the crisis of 2008/09, and the second period after the crisis 2010/15. The sample consisted of 11 companies listed on BM&F and with data available in the Economatica. We used 11 economic and financial indicators of profitability, liquidity, debt and working capital. The financial indicators were: (Return on Assets [ROA]; Return on Equity [ROE]; Current Liquidity Liquidity General, short-term debt and debt in the long term). (The Economic Indicators: (Earnings before interest, taxes, depreciation and amortization EBITDA; Treasury (T); Working Capital (CG); Working Capital Need (WCN)) and the margin Liquidation (MG), all divided by sales). There are two financial indicators of profitability: ROE and ROA and two indicares rentals of profitability: Net Margin and EBITDA, which gave statistically significant results. The results of the analysis of the financial indicators ROE and ROA indicate that the profits earned by entrepreneurs, shareholders and/or investors of the steel industry decreased substantially in relation to the first period analyzed, since the rate of return generated in applications of steel mills was financially impacted in a negative way. The results of economic indicators EBITDA and net margin, indicate that productivity and economic efficiency of the steel industry as well as the amount of resources generated through its operational activities were economically impacted negatively by the crisis of 2008/9 and by excessive production of steel, hindering the sales and distribution of dividends.

Among global steel markets in recent years, China steel industry expands the fastest with the largest capacity and most fiercest competitions, also bringing the greatest impacts to global and Taiwan steel markets. A few aggressive Taiwan mills have set up their production facilities in China and commissioned. This study conducts in-depth analysis on the leading Taiwan middlestream galvanizers & coil coaters (the products are hot-dip galvanized & pre-painted steel sheets, hereinafter called ¡§galvanized & pre-painted steel¡¨). Besides, the steel works are categorized into Taiwan works, China works-Taiwan capital, China works-foreign capital, and China local works based on different capital sources. Analysis and evaluation are done in light of every activity in value chain. Six types of galvanizers & coil coaters are categorized based on different facilities and processes. Type I: Integrated galvanizers & coil coaters Type II: CSP galvanizers & coil coaters Type III: Independent galvanizers Type IV: Independent coil coaters Type V: Independent galvanizers & coil coaters Type VI: Independent full-process galvanizers & coil coaters Owing to their different market environments, development backgrounds, technologies, human resources and management, this study will analyze their strengths, strategies adopted, possible future development trends and potential challenges. This study especially focuses on one issue: in the atmosphere of competition and cooperation between steel mills in Taiwan and China, how China independent galvanizers & coil coaters-Taiwan capital and Taiwan parent company upgrade their competitiveness is crucial. Synthesizing related literature & theories, market & mill information and interviews, verifying by comparison, four conclusions are obtained as follows. 1. The more value chain activities a mill has, the more profits and stronger competitiveness it acquires. 2. Taiwan markets of galvanizing & pre-painted steel are already saturated. The competitiveness & development strategy a globalization enterprise should adopt is to increase its export percentages and establish offshore production bases. 3. For those mills setting up independent galvanizers & coil coaters in both China and Taiwan, the marketing strategies they should employ are described as follows. 3.1 Both China and Taiwan works receive orders and manufacture for their domestic markets. In terms of exports, only Taiwan parent company receives orders for both. But they export through Taiwan¡¦s existing channels globally. 3.2 To ally with different downstream industries and benefit each other. 3.3 China products are exported to ASEAN 10 nations, or 10+3, or 10+4, or any country that hasn¡¦t accuse China mills of dumping, whereas Taiwan products are sold to China, or any country that hasn¡¦t accuse Taiwan mills of dumping. 3.4 Products should be differentiated. Order receiving, production planning, lead-time and customer service should be flexible and elastic. 3.5 The chosen customers and suppliers must be big and strong in their region. Thus, the overall enterprise competitiveness is excellent. 4. In the past, steel companies self-expand to grow whereas today they grow via merger and acquisition. Any enterprise must have its value-creation strategy, i.e. it must have a growth strategy to react to the fierce market competitions. This study provides six recommendations for the competitiveness & growth strategies which could be adopted by domestic Taiwan independent galvanizers & coil coaters. 1. For the investors who invest in independent galvanizers & coil coaters for the first time, the first choice should be Type VI: independent full-process galvanizers & coil coaters. The second choice should be Type V: Independent galvanizers & coil coaters. Next, to set up an independent galvanizer is superior to an independent coil coater. 2. Independent Galvanizers & Coil Coaters should adopt the growth strategy that horizontal developing to a certain scale at the outset is the priority. Next, they should develop toward upstream instead of downstream. In order to eliminate capacity, they should ally with different downstream industries. 3. In the market of demand exceeding supply, mills usually self-expand to achieve larger scale. Nevertheless, when the market is oversupplied, it is recommended to adopt acquisitions. 4. Independent galvanizers & coil coaters choose the most beneficial investment items & scale and start their oversea development based on their growth strategies. 5. In the initial phase of plant construction, independent galvanizers & coil coaters should negotiate with upstream raw material suppliers regarding raw material supply matters. A good relationship should be built in order to secure stability of raw material sources. 6. To manage China mills-Taiwan capital and compete with other mills, the following measures are recommended. 6.1 To take advantage of the enterprise strength, develop specialized products and promote marketing features. 6.2 To promptly establish market reaction mechanism via the internationalization strategy of ¡§Integration-Responsiveness¡¨. 6.3 To employ human resources management to aid internationalization strategy. 6.4 Integration model created by overseas plant construction or acquisition can be adopted to integrate an enterprise¡¦s organization, culture and resources via dynamics management system.