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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

Avalia??o de desempenho de um kit comercial de bombeamento por energia solar fotovoltaica / Evaluation of performance of a commercial photovoltaic solar energy pumping kit

Beserra, Daniel Lucas Cabral 14 August 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-01-15T21:40:47Z No. of bitstreams: 1 DanielLucasCabralBeserra_DISSERT.pdf: 2564222 bytes, checksum: 75340aada41908de71c717f59f99c2aa (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-01-17T13:32:32Z (GMT) No. of bitstreams: 1 DanielLucasCabralBeserra_DISSERT.pdf: 2564222 bytes, checksum: 75340aada41908de71c717f59f99c2aa (MD5) / Made available in DSpace on 2018-01-17T13:32:32Z (GMT). No. of bitstreams: 1 DanielLucasCabralBeserra_DISSERT.pdf: 2564222 bytes, checksum: 75340aada41908de71c717f59f99c2aa (MD5) Previous issue date: 2017-08-14 / No mundo em que vivemos existem duas demandas humanas que v?m sendo exploradas de forma irracionalmente nos levando a situa??o atual onde todas as na??es buscam energia, para impulsionar suas economias ou oferecer qualidade de vida a seus habitantes, e ?gua, elemento necess?rio a vida como um todo, em nosso planeta. Pensando nessas necessidades hoje em dia est?o dispon?veis para comprar kits de bombeamento por energia solar, permitindo a capta??o de ?guas subterr?neas utilizando energia renov?vel. Atualmente temos uma grande gama de bombas hidr?ulicas que funcionam por energia solar ou e?lica. Dentre essas destacam-se as centr?fugas por possu?rem hoje uma boa parte do mercado. Por?m com os recursos escassos de energia, alternativas de bombeamento est?o sendo encontradas, como por exemplo, uma bomba de diafragma, com baixa necessidade energ?tica sendo perfeitamente acoplada a uma placa fotovoltaica. Com o crescimento dessa ?rea surgem d?vidas em rela??o ao custo benef?cio e aos riscos de danos ao longo dos anos. Os dados apresentados atualmente mostram que uma bomba operando nas circunstancias normais de um dia, perde muito de efici?ncia por fatores clim?ticos e n?o se sabe ao certo quais problemas mec?nicos resultar?o dessa constante varia??o da frequ?ncia de trabalho. / In the world we live in, there are two human demands that are being explored irrationally, leading us to the current situation where all nations seek energy, to boost their economies or provide quality of life to its inhabitants, and water, element necessary to life as an Everything on our planet. Thinking about these needs, nowadays are available to buy solar pumping kits, allowing the withdraw of groundwater using renewable energy. We currently have a wide range of hydraulic pumps that work by solar or wind power. Among these, the centrifuges stand out because they now have a large part of the market. But with the scarce energy resources, pumping alternatives are being found, for example, a diaphragm pump, with low energy needs being perfectly coupled to a photovoltaic plate. With the growth of this area arise doubts in relation to the cost benefit and the risks of damages over the years. The data presented today show that a pump operating under the normal circumstances of a day loses to much efficiency due to climatic factors and it is not known which mechanical problems will result from this constant variation of the working frequency.

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