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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.
551

Desempenho de um sistema híbrido eólico-fotovoltaico de pequeno porte para energização rural

Siqueira, Jair Antonio Cruz [UNESP] 16 December 2005 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:31:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-12-16Bitstream added on 2014-06-13T21:02:56Z : No. of bitstreams: 1 siqueira_jac_dr_botfca.pdf: 1139206 bytes, checksum: fa362c8ed41f1611714cccd53dfd49ca (MD5) / A geração de energia elétrica a partir de fontes renováveis começou a apresentar maior interesse a partir da crise do petróleo na década de 70. De lá pra cá, entre outros recursos energéticos renováveis, a utilização do potencial da energia solar e eólica tem crescido significativamente. A integração de sistemas de geração eólica e fotovoltaica com armazenamento de energia em baterias tem-se apresentado como uma forma de geração em que os problemas decorrentes da variabilidade na intensidade da energia eólica e solar, tornam-se possíveis de mitigação, seja pela complementação entre uma fonte e outra, ou pela maior estabilidade configurada à geração do sistema. Com base neste contexto, este trabalho teve o objetivo de avaliar o desempenho um sistema híbrido de energia eólico-fotovoltaico de pequeno porte, para a eletrificação de uma propriedade rural, avaliando-se o efeito das variáveis climáticas sobre a produção energética do sistema. O trabalho foi desenvolvido no Laboratório de Energização Rural do Departamento de Engenharia Rural da UNESP-FCA. Para a realização do trabalho, foi instalado um sistema híbrido (solar + eólico), composto por um aerogerador e um painel fotovoltaico, complementado por uma bateria para armazenamento da energia elétrica gerada, controlador de carga e inversor de tensão. O sistema foi configurado para atender as cargas de uma pequena residência rural. Para avaliação das características do potencial da energia solar e eólica, utilizaram-se os dados de uma estação meteorológica instalada no local. Um sistema de aquisição de dados foi programado para coletar os parâmetros meteorológicos e elétricos do experimento a cada 10 segundos, apresentando a média dos valores coletados a cada 5 minutos. A coleta dos dados foi realizada durante um ano, diuturnamente, para avaliar a influência das horas... / The electric energy generation from renewable sources, began to present larger interest in the petroleum crisis in 1970 decade. Since then, among other renewable energy resources, the use of the solar energy and wind energy potential have been growing significantly. The integration of wind and photovoltaic generation systems has been presenting as a generation form where the current problems of the variability in the wind and solar energy intensity, become possible of mitigation due to the complementation of both a sources, or for the larger stability given to the generation system. Based in this context, this work had the objective of evaluating a small wind-photovoltaic hybrid energy system for a rural electrification, with the evaluation of the climatic variables effect on the system energy production. The work was developed in the Laboratory of Rural Electrification of the UNESP-FCA Rural Engineering Department. For the accomplishment of the work, a small wind-photovoltaic hybrid system was installed, composed by an wind generator and a photovoltaic panel, complemented with a battery for the generated electric energy storage, a charge controller and an inverter. The system was configured for small rural residence load supply. For solar and wind energy potential characteristics evaluation, the data of a meteorological station installed in the place were used. A data acquisition system was programmed to collect the meteorological and electric parameters of the experiment every 10 seconds, calculating the average values collected every 5 minutes. The data collection was carried out during one year, daily, to evaluate the influence of the day hours and of the seasons changes on the hybrid system energy generation and its components. The collected data were integrated, and it was determined the values of the solar energy, wind energy, photovoltaic generation, wind generation and hybrid system...(Complete abstract click electronic access below)
552

Avaliação de métodos de estimativa da radiação solar global e da evapotranspiração de referência para o estado de Mato Grosso

Tanaka, Adriana Aki [UNESP] 08 November 2013 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:32:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-11-08Bitstream added on 2014-06-13T19:22:16Z : No. of bitstreams: 1 000756090.pdf: 1924126 bytes, checksum: c0bc3cc1367a83e8d3cc017a7b021d50 (MD5) / A radiação solar é fonte de energia nos processos físicos, químicos e biológicos que ocorrem na superfície terrestre e é o principal elemento climático que interfere na evapotranspiração das culturas, pois interfere no processo fotossintético destas. Por isso quando não se dispõe de dados medidos de evapotranspiração de referência, pode-se usar métodos de estimativa para tal quantificação. Este trabalho foi dividido em três capítulos e teve por objetivo geral avaliar o desempenho de modelos simplificados de estimativa da radiação solar e evapotranspiração para 28 cidades do estado de Mato Grosso. O primeiro capítulo objetivou a calibração regional e a avaliação do desempenho estatístico de quinze modelos simplificados de estimativa da radiação global baseados na temperatura do ar. Os dados foram fornecidos pelo Instituto Nacional de Meteorologia (INMET), coletados por estações meteorológicas automáticas (EMA’s) localizadas nas cidades de Água Boa, Alta Floresta, Apiacás, Campo Novo do Parecis, Campo Verde, Carlinda, Comodoro, Confresa, Cotriguaçu, Cuiabá, Gaúcha do Norte, Guarantã, Guiratinga, Itiquira, Juara, Juína, Nova Maringá, Nova Ubiratã, Novo Mundo, Pontes e Lacerda, Porto Estrela, Rondonópolis, Salto do Céu, Santo Antônio do Leste, São Félix do Araguaia, Sinop, Sorriso e Vila Bela da Santíssima Trindade. Os modelos calibradas foram: Abraha e Savage; Abraha e Savage Weiss; Almorox; Annandele; Bristow e Campbell; Chen; De Jong e Stewart; Donatelli e Campbell; Goodin; Hargreaves; Hunt (dois coeficientes); Hunt (quatro coeficientes); Mahmood e Hubbard; Meza e Varas e Thorton e Running. Os índices de desempenho utilizados foram o coeficiente de determinação da regressão linear (R2), o Erro Médio Relativo (EMR), a Raiz Quadrada do Quadrado Médio do Erro (RQME) e o índice d de Willmott. Os valores de R2 variaram de 0,40 a 0,70 e a RQME foi, em... / A radiação solar é fonte de energia nos processos físicos, químicos e biológicos que ocorrem na superfície terrestre e é o principal elemento climático que interfere na evapotranspiração das culturas, pois interfere no processo fotossintético destas. Por isso quando não se dispõe de dados medidos de evapotranspiração de referência, pode-se usar métodos de estimativa para tal quantificação. Este trabalho foi dividido em três capítulos e teve por objetivo geral avaliar o desempenho de modelos simplificados de estimativa da radiação solar e evapotranspiração para 28 cidades do estado de Mato Grosso. O primeiro capítulo objetivou a calibração regional e a avaliação do desempenho estatístico de quinze modelos simplificados de estimativa da radiação global baseados na temperatura do ar. Os dados foram fornecidos pelo Instituto Nacional de Meteorologia (INMET), coletados por estações meteorológicas automáticas (EMA’s) localizadas nas cidades de Água Boa, Alta Floresta, Apiacás, Campo Novo do Parecis, Campo Verde, Carlinda, Comodoro, Confresa, Cotriguaçu, Cuiabá, Gaúcha do Norte, Guarantã, Guiratinga, Itiquira, Juara, Juína, Nova Maringá, Nova Ubiratã, Novo Mundo, Pontes e Lacerda, Porto Estrela, Rondonópolis, Salto do Céu, Santo Antônio do Leste, São Félix do Araguaia, Sinop, Sorriso e Vila Bela da Santíssima Trindade. Os modelos calibradas foram: Abraha e Savage; Abraha e Savage Weiss; Almorox; Annandele; Bristow e Campbell; Chen; De Jong e Stewart; Donatelli e Campbell; Goodin; Hargreaves; Hunt (dois coeficientes); Hunt (quatro coeficientes); Mahmood e Hubbard; Meza e Varas e Thorton e Running. Os índices de desempenho utilizados foram o coeficiente de determinação da regressão linear (R2), o Erro Médio Relativo (EMR), a Raiz Quadrada do Quadrado Médio do Erro (RQME) e o índice d de Willmott. Os valores de R2 variaram de 0,40 a 0,70 e ...
553

Visions for Sustainable Energy Transformations: Integrating Power and Politics in the Mediterranean Region

January 2015 (has links)
abstract: This dissertation examines the nexus of three trends in electricity systems transformations underway worldwide—the scale-up of renewable energy, regionalization, and liberalization. Interdependent electricity systems are being envisioned that require partnership and integration across power disparities. This research explores how actors in the Mediterranean region envisioned a massive scale-up of renewable energy within a single electricity system and market across Europe, North Africa, and the Middle East. It asks: How are regional sociotechnical systems envisioned? What are the anticipated consequences of a system for a region with broad disparities and deep sociopolitical differences? What can be learned about energy justice by examining this vision at multiple scales? A sociotechnical systems framework is used to analyze energy transformations, interweaving the technical aspects with politics, societal effects, and political development issues. This research utilized mixed qualitative methods to analyze Mediterranean electricity transformations at multiple scales, including fieldwork in Morocco and Germany, document analysis, and event ethnography. Each scale—from a global history of concentrating solar power technologies to a small village in Morocco—provides a different lens on the sociotechnical system and its implications for justice. This study updates Thomas Hughes’ Networks of Power, the canonical history of the sociotechnical development of electricity systems, by adding new aspects to sociotechnical electricity systems theory. First, a visioning process now plays a crucial role in guiding innovation and has a lasting influence on the justice outcomes. Second, rather than simply providing people with heat and light, electrical power systems in the 21st century are called upon to address complex integrated solutions. Furthermore, building a sustainable energy system is now a retrofitting agenda, as system builders must graft new infrastructure on top of old systems. Third, the spatial and temporal aspects of sociotechnical energy systems should be amended to account for constructed geography and temporal complexity. Fourth, transnational electricity systems pose new challenges for politics and political development. Finally, this dissertation presents a normative framework for conceptualizing and evaluating energy justice. Multi-scalar, systems-level justice requires collating diverse ideas about energy justice, expanding upon them based on the empirical material, and evaluating them with this framework. / Dissertation/Thesis / Doctoral Dissertation Science and Technology Policy 2015
554

The Synthesis and Applications of β-Cyanoporphyrins in Molecular Systems for Artificial Photosynthesis

January 2015 (has links)
abstract: As sunlight is an ideal source of energy on a global scale, there are several approaches being developed to harvest it and convert it to a form that can be used. One of these is though mimicking the processes in natural photosynthesis. Artificial photosynthetic systems include dye sensitized solar cells for the conversion of sunlight to electricity, and photoelectrosynthetic cells which use sunlight to drive water oxidation and hydrogen production to convert sunlight to energy stored in fuel. Both of these approaches include the process of the conversion of light energy into chemical potential in the form of a charge-separated state via molecular compounds. Porphyrins are commonly used as sensitizers as they have well suited properties for these applications. A high potential porphyrin with four nitrile groups at the beta positions, a β-cyanoporphyrin (CyP), was investigated and found to be an excellent electron acceptor, as well as have the necessary properties to be used as a sensitizer for photoelectrosynthetic cells for water oxidation. A new synthetic method was developed which allowed for the CyP to be used in a number of studies in artificial photosynthetic systems. This dissertation reports the theories behind, and the results of four studies utilizing a CyP for the first time; as a sensitizer in a DSSC for an investigation of its use in light driven water oxidation photoelectrosynthetic cells, as an electron acceptor in a proton coupled electron transfer system, in a carotene-CyP dyad to study energy and electron transfer processes between these moieties, and in a molecular triad to study a unique electron transfer process from a C60 radical anion to the CyP. It has been found that CyPs can be used as powerful electron acceptors in molecular systems to provide a large driving force for electron transfer that can aid in the process of the conversion of light to electrochemical potential. The results from these studies have led to a better understanding of the properties of CyPs, and have provided new insight into several electron transfer reactions. / Dissertation/Thesis / Doctoral Dissertation Chemistry 2015
555

A Simulator for Solar Array Monitoring

January 2016 (has links)
abstract: Utility scale solar energy is generated by photovoltaic (PV) cell arrays, which are often deployed in remote areas. A PV array monitoring system is considered where smart sensors are attached to the PV modules and transmit data to a monitoring station through wireless links. These smart monitoring devices may be used for fault detection and management of connection topologies. In this thesis, a compact hardware simulator of the smart PV array monitoring system is described. The voltage, current, irradiance, and temperature of each PV module are monitored and the status of each panel along with all data is transmitted to a mobile device. LabVIEW and Arduino board programs have been developed to display and visualize the monitoring data from all sensors. All data is saved on servers and mobile devices and desktops can easily access analytics from anywhere. Various PV array conditions including shading, faults, and loading are simulated and demonstrated. Additionally, Electrical mismatch between modules in a PV array due to partial shading causes energy losses beyond the shaded module, as unshaded modules are forced to operate away from their maximum power point in order to compensate for the shading. An irradiance estimation algorithm is presented for use in a mismatch mitigation system. Irradiance is estimated using measurements of module voltage, current, and back surface temperature. These estimates may be used to optimize an array’s electrical configuration and reduce the mismatch losses caused by partial shading. Propagation of error in the estimation is examined; it is found that accuracy is sufficient for use in the proposed mismatch mitigation application. / Dissertation/Thesis / Masters Thesis Electrical Engineering 2016
556

Molecules for Energy and Charge Transfer for Biomimetic Systems: Synthesis, Characterization and Computational Studies

January 2016 (has links)
abstract: Sunlight, the most abundant source of energy available, is diffuse and intermittent; therefore it needs to be stored in chemicals bonds in order to be used any time. Photosynthesis converts sunlight into useful chemical energy that organisms can use for their functions. Artificial photosynthesis aims to use the essential chemistry of natural photosynthesis to harvest solar energy and convert it into fuels such as hydrogen gas. By splitting water, tandem photoelectrochemical solar cells (PESC) can produce hydrogen gas, which can be stored and used as fuel. Understanding the mechanisms of photosynthesis, such as photoinduced electron transfer, proton-coupled electron transfer (PCET) and energy transfer (singlet-singlet and triplet-triplet) can provide a detailed knowledge of those processes which can later be applied to the design of artificial photosynthetic systems. This dissertation has three main research projects. The first part focuses on design, synthesis and characterization of suitable photosensitizers for tandem cells. Different factors that can influence the performance of the photosensitizers in PESC and the attachment and use of a biomimetic electron relay to a water oxidation catalyst are explored. The second part studies PCET, using Nuclear Magnetic Resonance and computational chemistry to elucidate the structure and stability of tautomers that comprise biomimetic electron relays, focusing on the formation of intramolecular hydrogen bonds. The third part of this dissertation uses computational calculations to understand triplet-triplet energy transfer and the mechanism of quenching of the excited singlet state of phthalocyanines in antenna models by covalently attached carotenoids. / Dissertation/Thesis / Doctoral Dissertation Chemistry 2016
557

Reliability of PV Modules: Dependence on Manufacturing Quality and Field Climatic Conditions

January 2017 (has links)
abstract: This is a two-part thesis assessing the long-term reliability of photovoltaic modules. Part 1: Manufacturing dependent reliability - Adapting FMECA for quality control in PV module manufacturing This part is aimed at introducing a statistical tool in quality assessments in PV module manufacturing. Developed jointly by ASU-PRL and Clean Energy Associates, this work adapts the Failure Mode Effect and Criticality Analysis (FMECA, IEC 60812) to quantify the impact of failure modes observed at the time of manufacturing. The method was developed through analysis of nearly 9000 modules at the pre-shipment evaluation stage in module manufacturing facilities across south east Asia. Numerous projects were analyzed to generate RPN (Risk Priority Number) scores for projects. In this manner, it was possibly to quantitatively assess the risk being carried the project at the time of shipment of modules. The objective of this work was to develop a benchmarking system that would allow for accurate quantitative estimations of risk mitigation and project bankability. Part 2: Climate dependent reliability - Activation energy determination for climate specific degradation modes This work attempts to model the parameter (Isc or Rs) degradation rate of modules as a function of the climatic parameters (i.e. temperature, relative humidity and ultraviolet radiation) at the site. The objective of this work was to look beyond the power degradation rate and model based on the performance parameter directly affected by the degradation mode under investigation (encapsulant browning or IMS degradation of solder bonds). Different physical models were tested and validated through comparing the activation energy obtained for each degradation mode. It was concluded that, for the degradation of the solder bonds within the module, the Pecks equation (function of temperature and relative humidity) modelled with Rs increase was the best fit; the activation energy ranging from 0.4 – 0.7 eV based on the climate type. For encapsulant browning, the Modified Arrhenius equation (function of temperature and UV) seemed to be the best fit presently, yielding an activation energy of 0.3 eV. The work was concluded by suggesting possible modifications to the models based on degradation pathways unaccounted for in the present work. / Dissertation/Thesis / Masters Thesis Chemical Engineering 2017
558

Análise comparativa da viabilidade econômica da utilização de coletores solar para aquecimento de água

Ismanhoto, Wagner Aparecido [UNESP] 25 February 2005 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:24:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-02-25Bitstream added on 2014-06-13T20:32:00Z : No. of bitstreams: 1 ismanhoto_wa_me_botfca.pdf: 1095761 bytes, checksum: ebba0cf32d35002a3860cf928f62490c (MD5) / Universidade Estadual Paulista (UNESP) / O grande problema que a sociedade moderna deverá equacionar, sem dúvida, é a questão do abastecimento energético. A questão do crescimento e desenvolvimento econômico da humanidade passa, necessariamente, pelo desafio prático e material de buscar criar fontes energéticas alternativas que possam garantir a existência da indústria, nossos meios de transporte, a vida urbana e até mesmo a agricultura. Durante anos, a humanidade conseguiu sobreviver com fontes energéticas com base no trabalho braçal e de animais. A criação de fontes de energia inanimadas, como rodas hidráulicas e moinhos de vento, significaram um importante aumento na produtividade. O sol pode ser a solução para a questão do abastecimento energético no futuro. Estudos revelam que somente este ano, o sol lançará sobre o globo terrestre, 4.000 vezes mais energia que consumiremos. O presente estudo tem como objetivo analisar propostas, e fazer um estudo da viabilidade econômica de alguns sistemas para o aproveitamento desta fonte de energia limpa, inesgotável e gratuita, em se tratando de aquecimento de água para fins domésticos, principalmente como forma alternativa de propiciar às pessoas mais afastadas dos centros economicamente desenvolvidos, uma melhor qualidade de vida e fazer uma comparação com os sistemas tradicionais de aquecimento de água. Considerando que o homem do campo, por questões técnicas, geográficas e econômicas, foi ao longo do tempo sendo privado de alguns benefícios que são comuns nas cidades, mas não tão comuns a eles, e que estas privações têm impacto direto em sua qualidade de vida e na produtividade, se torna importante encontrar alternativas simples de geração de energia que possa ser difundida de forma a propiciar que cada cidadão construa de forma barata, através de materiais reciclados, utilizando elementos que lhe são... / The biggest problem that society should solve, unquestionably, is the matter of energetic supply. The question of economic and development growth of mankind go necessarily through practical and material challenge of trying to create alternative energetic sources, which may guarantee the industry existence, our means of transportation, the urban life and even the agriculture. For many years the mankind has managed to survive with energy sources based on country work and on animal traction. The creation of inanimate energy, such as hydraulic wheels and windmills, meant an important increase in the productivity. The sun may be the solution for the matter of energetic supply in the future. Studies show that only this year, the sun will throw out 4,000 times more energy on the Earth that we will consume. This study aims to analyze proposals and also to study economic viability of some systems in order to make the most of this clean, inexhaustible and free energy. By dealing with water heating for household use, mainly, as an alternative way to help people living far from economically well-developed centers, a better life quality and also to compare the existing and traditional water heating system. Whereas the country man, for technical, geographic and economic reasons, has been foregone from some benefits which are common in the city, but not so common to them, and these privations have direct impact on their life quality and also on their productivity, this becomes important to find simple alternatives of generating energy that can be spread in order to help each citizen build cheaply through recycled material, by using familiar elements, instruments that can collect and transform the most plentiful energy on the Earth: the solar energy. The present study analyzes the economic viability of the implantacion of alternative systems of heating of water, through the solar energy, mainly... (Complete abstract, click electronic access below)
559

Potencial solar das radiações global, difusa e direta em Botucatu

Inácio, Thais [UNESP] 27 August 2009 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:24:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-27Bitstream added on 2014-06-13T19:11:22Z : No. of bitstreams: 1 inacio_t_me_botfca.pdf: 488409 bytes, checksum: f07ac54da8077b5df98e78bea1785b2e (MD5) / No presente trabalho é apresentado o estudo do potencial da energia solar disponível no município de Botucatu, através das análises das séries temporais médias anuais diárias, médias mensais diárias e séries anuais dos acumulados mensais das radiações global, difusa e direta na horizontal do período de 1996 à 2005. As irradiações, em MJ/m2, foram calculadas a partir das integrações diárias das irradiâncias global , irradiância difusa , irradiância direta na horizontal e no topo da atmosfera , determinando-se as irradiações diárias: , e ; e médias mensais: G I d I D I O I dG H d d H dD H dGH , d d H e dD H . A partir das médias mensais, determinou-se o índice de claridade t K (razão da irradiação global pela do topo da atmosfera), e as demais frações das radiações: d K (razão da irradiação difusa pela global), ′ d K (razão da irradiação difusa pela do topo da atmosfera), D K (razão da irradiação direta pela global), ′ D K (razão da irradiação direta pela do topo da atmosfera). Realizou-se uma análise estatística dos dados de radiação solar, de forma a se obter os valores médios, desvios, máximos, mínimos, variação e acumulados, mensais e anuais. E apresentaram-se de forma gráfica os resultados estatísticos obtidos para compará-los com os valores médios mensais diários da precipitação, nebulosidade e insolação, para que se possam explicar os fenômenos que causam as variações nos valores da série temporal de radiação solar na superfície terrestre de Botucatu. Os valores médios mensais diários da radiação global variaram de 21,0 MJ/m² em novembro até 12,6 MJ/m² em junho. A fração t K media anual foi de 53,0%. Os valores médios mensais diários da radiação difusa variaram de 10,0 MJ/m² em dezembro... / The present work presents the potential of solar energy available in the city of Botucatu, by analyzing time series of annual average daily, monthly averages of daily and cumulative monthly series of annual global radiation, diffuse and horizontal direct in the period of 1996 to 2005. The irradiation in MJ/m2 were calculated from daily integrations of the global irradiance , diffuse irradiance , horizontal direct irradiance and at the top of the atmosphere , by providing daily the daily irradiation: , and ; and monthly averages: G I d I D I O I dG H d d H dD H dG H , d d H and dD H . From the monthly averages, it was determined the clearness index t K (global/top of the atmosphere irradiation), and other fractions of radiation: d K (diffuse/global irradiation), ′ d K (diffuse/top of the atmosphere irradiation), D K (direct/global irradiation), ′ D K (direct/top of the atmosphere irradiation). Was held a statistical analysis of data on solar radiation in order to obtain the average values, deviation, minimum, maximum, variation and cumulative, monthly and yearly. And it showed in graphic statistical results obtained to compare them with the monthly average daily values of precipitation, cloudiness and sunshine, so that can explain the phenomena that cause variation in te values of time series of solar radiation on the Earth's surface of Botucatu. The values daily monthly average global radiation varied from 21.0 MJ/m² in november to 12,6 MJ/m² in june. The average annual t K fraction was 53,0%. The values daily monthly average diffuse radiation varied from 10,0 MJ/m² in december to 3,7 MJ/m² in june. The average annual d K fraction was 37% and the average annual ′ d K fraction was 19,7%. The values daily average monthly direct radiation varied from 11,8 MJ/m² in november... (Complete abstract click electronic access below)
560

Análise do potencial solar térmico em um segmento do setor de alimentos e bebidas na Paraíba

Melquíades, Thiago Freire 29 April 2016 (has links)
Submitted by Viviane Lima da Cunha (viviane@biblioteca.ufpb.br) on 2016-08-02T14:37:49Z No. of bitstreams: 1 arquivototal.pdf: 2360147 bytes, checksum: e0a8bf7d97aa5aeb96223261bcdb9c0a (MD5) / Made available in DSpace on 2016-08-02T14:37:49Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2360147 bytes, checksum: e0a8bf7d97aa5aeb96223261bcdb9c0a (MD5) Previous issue date: 2016-04-29 / Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq / Solar energy is the most abundant energy source in the Earth, however, still little explored by modern society, compared to another sources. This dissertation analyzed the potential use of solar thermal collectors in the food and beverage’ industry segment in Paraíba. And specifically analyzed through regional indicators, the relevance of potential segments of food and beverages from Paraiba for the use of Solar Heating Systems (SAS). It was also analyzed the technical and economic feasibility of using solar thermal collectors in a in a manufacturing company of ice cream and other ices, located in João Pessoa. It was found through the environmental impacts Life Cycle Assessment associated with the pasteurization process in an ice cream manufacturing company and other ices in Joao Pessoa, comparing the replacement of atmospheric burner LPG (Liquefied Petroleum Gas) to Solar Heating System. It was analyzed the Global Solar Radiation Series, from July 2007 to December 2013 in the city of Joao Pessoa Paraiba, using the ARIMA family models and testing the models estimated in 2014 forecast. The methodologies used were: regional analysis, through location and regional measures, life cycle assessment using the IPCC 2013 GWP 100a method, the Box and Jenkins method of time series analysis; and technical and economic analysis through NBR 15569 and financial indicators. The main results were: the sub-sectors of the food industry are distributed similarly between mesoregions. The SAS provided smaller environmental impact as compared to atmospheric burner. The SARIMA model (2,1,0) (2,1,3) 12 was the one that provided the best fit global solar radiation for 2014. It was concluded that the use of solar thermal collectors in the segment of the food and beverage industry in Paraíba is feasible according points of view technical, economic and environmental. / A energia solar é a fonte energética mais abundante do nosso planeta, porém, ainda pouco explorada pela sociedade moderna se comparada com outras fontes. Essa dissertação analisou as potencialidades do uso de coletores solares térmicos em um segmento da indústria de alimentos e bebidas na Paraíba. E, de forma específica, primeiramente analisou por meio de indicadores regionais, a relevância dos segmentos potenciais de alimentos e bebidas paraibanos para o uso de Sistemas de Aquecimento Solar (SAS). Segundamente, analisou a viabilidade técnica e econômica do uso de coletores solares térmicos em uma em uma empresa de fabricação de sorvetes e outros gelados comestíveis, localizada em João Pessoa. Terceiramente, verificou por meio da Avaliação de Ciclo de Vida os impactos ambientais associados ao processo de pasteurização em uma empresa de fabricação de sorvetes e outros gelados comestíveis em João Pessoa, comparando a substituição do queimador atmosférico de GLP (Gás Liquefeito de Petróleo) por um Sistema de Aquecimento Solar. Por fim, analisou a Série de Radiação Solar Global, no período de julho de 2007 a dezembro de 2013 do município de João Pessoa na Paraíba, por meio dos modelos da família ARIMA e testando os modelos estimados na previsão de 2014. As metodologias utilizadas foram: análise regional; por meio das medidas de localização e regionais, análise de ciclo de vida pelo método IPCC 2013 GWP 100a, o método Box-Jenkins de análise de séries temporais; e análise técnica e econômica pela NBR 15569 e indicadores financeiros. Os principais resultados foram: os subsetores do setor alimentício são distribuídos de forma semelhante entre as mesorregiões. O SAS proporcionou menores impactos ambientais, quando comparado ao queimador atmosférico. O modelo SARIMA (2,1,0) (2,1,3)12 foi o que forneceu melhor ajuste da radiação solar global para 2014. Concluiu-se que o uso de coletores solares térmicos no segmento da indústria de alimentos e bebidas na Paraíba é viável dos pontos de vista técnico, econômico e ambiental.

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