<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1646-9895</journal-id>
<journal-title><![CDATA[RISTI - Revista Ibérica de Sistemas e Tecnologias de Informação]]></journal-title>
<abbrev-journal-title><![CDATA[RISTI]]></abbrev-journal-title>
<issn>1646-9895</issn>
<publisher>
<publisher-name><![CDATA[AISTI - Associação Ibérica de Sistemas e Tecnologias de Informação]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1646-98952024000300058</article-id>
<article-id pub-id-type="doi">10.17013/risti.55.58-70</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Projeto e Análise de um Sistema para Aquecimento de Lagos Artificiais para Criação de Carpas-Koi]]></article-title>
<article-title xml:lang="en"><![CDATA[Design and Analysis of an Artificial Pond Heating System for Koi-Carp Breeding]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muller]]></surname>
<given-names><![CDATA[Gustavo Henrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kuffel]]></surname>
<given-names><![CDATA[Júlia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[Priscila Tanno Nogueira de]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pfitscher]]></surname>
<given-names><![CDATA[Ricardo Jose]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Storch]]></surname>
<given-names><![CDATA[Siméia Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Federal de Santa Catarina  ]]></institution>
<addr-line><![CDATA[Joinville ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<numero>55</numero>
<fpage>58</fpage>
<lpage>70</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-98952024000300058&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-98952024000300058&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-98952024000300058&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo O controle da temperatura em lagos para criação de carpas-koi é essencial para o bom desenvolvimento dos animais. Normalmente, a manutenção da temperatura em níveis ideais requer a utilização de aquecedores elétricos, que implicam em custos excessivos aos criadores. Neste trabalho é proposto um sistema de Internet of Things (IoT) que utiliza a combinação de resistências elétricas com canos pretos expostos ao sol para auxiliar no aquecimento da água a mantê-la entre 20 °C e 30 °C. O monitoramento da temperatura da água e do funcionamento do sistema foi feito através de sensores conectados à internet utilizando um micro controlador. Após modelagem matemática da perda de calor e quantidade de energia necessária, chegou-se à conclusão de que com uma resistência de 10KW, o sistema levará cerca de 24 horas para elevar a temperatura de 20 °C para 30 °C sem o auxílio da energia solar e 21 horas com o uso da energia solar, um ganho de 10%.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Temperature control in ponds for koi farming is essential for the proper development of the animals. Maintaining the temperature at ideal levels typically requires using electric heaters, which entails excessive costs for the breeders. This work proposes an Internet of Things (IoT) system that combines electric resistors with black pipes exposed to the sun to help heat the water and keep it between 20 °C and 30 °C. The system monitored the water temperature through sensors connected to the internet using a microcontroller. After mathematical modeling of the heat loss and amount of energy required, we conclude that with a 10KW resistor, the system will take about 24 hours to raise the temperature from 20 °C to 30 °C without the help of solar energy and 21 hours with the use of solar energy, a gain of 10%.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Aquecimento de Água]]></kwd>
<kwd lng="pt"><![CDATA[Criação de Carpas]]></kwd>
<kwd lng="pt"><![CDATA[Aquecimento de Lago Artificial, Internet das Coisas]]></kwd>
<kwd lng="en"><![CDATA[Water heating]]></kwd>
<kwd lng="en"><![CDATA[Carp Breeding]]></kwd>
<kwd lng="en"><![CDATA[Artificial Lake Heating, Internet of Things]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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