A new model for sizing thermosiphon solar heating systems

Detalhes bibliográficos
Autor(a) principal: Siqueira, Antônio Marcos de Oliveira
Data de Publicação: 2020
Outros Autores: Gurgel, Alexandre, Ge, Zeji, Colque, Fernando Ariel, Silva, Gabriel Siqueira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/5673
Resumo: The purpose of this work is to present a simple methodology which enables to size a thermosyphon system without always having to resort to a computational simulation. As a result of many system simulations using the TRNSYS software, whereby several project and equipment parameters were varied, a group of expressions were obtained which allow the determination of the system thermal daily efficiency (monthly average). The developed correlation includes geometric and thermal aspects related to the collector, the storage tank and the connecting pipes, as well as operational data such as thermal load, solar radiation and room temperature. This model is able to optimize several variables that comprise thermosyphon solar water-heating systems for the requirements of particular applications. The resulting correlation shows that the efficiency is a linear function of meteorological conditions, collector quality and parameters related to storage tank volume, volume load (consumption profile) and collector area. The correlation is very useful since it is a simple, fast alternative for the calculation of system efficiency without depending on experimental determination or numerical simulation results. The determination and sizing of the collector area and the volume storage tank that satisfy the required thermal load can be appropriately performed in a simple and fast way by using the proposed correlation.
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spelling A new model for sizing thermosiphon solar heating systemsUn nuevo enfoque para el dimensionamiento de calentadores solares que funcionan con termosifónUma nova abordagem para o dimensionamento de aquecedores solares operando por termossifãoAquecimento solar de águaCirculação NaturalModelo matemáticoTRNSYS.Calentamiento solar de aguaCirculación naturalModelo matemáticoTRNSYS.Solar water heatingNatural circulationMathematical modelTRNSYS.The purpose of this work is to present a simple methodology which enables to size a thermosyphon system without always having to resort to a computational simulation. As a result of many system simulations using the TRNSYS software, whereby several project and equipment parameters were varied, a group of expressions were obtained which allow the determination of the system thermal daily efficiency (monthly average). The developed correlation includes geometric and thermal aspects related to the collector, the storage tank and the connecting pipes, as well as operational data such as thermal load, solar radiation and room temperature. This model is able to optimize several variables that comprise thermosyphon solar water-heating systems for the requirements of particular applications. The resulting correlation shows that the efficiency is a linear function of meteorological conditions, collector quality and parameters related to storage tank volume, volume load (consumption profile) and collector area. The correlation is very useful since it is a simple, fast alternative for the calculation of system efficiency without depending on experimental determination or numerical simulation results. The determination and sizing of the collector area and the volume storage tank that satisfy the required thermal load can be appropriately performed in a simple and fast way by using the proposed correlation.El objetivo de este trabajo es presentar una metodología simple para que sea posible diseñar un sistema que funcione en un termosifón, sin recurrir siempre a una simulación por computadora. Como resultado de muchas simulaciones de sistemas que utilizan el programa TRNSYS, donde se variaron diferentes parámetros operacionales y de diseño del sistema, se obtuvo un conjunto de expresiones que permiten la determinación de la eficiencia térmica diaria (promedio mensual) del sistema. La correlación desarrollada contempla tanto los aspectos geométricos y térmicos relacionados con el colector, el tanque de almacenamiento y las tuberías de conexión, así como los aspectos operativos (carga térmica, radiación solar, temperatura ambiente). Este modelo puede optimizar las variables del sistema de calentamiento solar de agua mediante termosifón para los requisitos de una aplicación específica. La correlación obtenida muestra que la eficiencia es una función lineal de las condiciones climáticas, la calidad del colector y los parámetros que relacionan el volumen del tanque de almacenamiento, el volumen de carga (perfil de consumo) y el área del colector. La correlación es muy útil, ya que es una alternativa simple y rápida para calcular la eficiencia del sistema, sin depender de la determinación experimental o los resultados de la simulación numérica. El dimensionamiento, es decir, la determinación del área del colector y el volumen del tanque de almacenamiento que satisfacen adecuadamente la carga térmica requerida, se puede llevar a cabo de manera simple y rápida, utilizando esta correlación.O objetivo deste trabalho é apresentar uma metodologia simples para que seja possível dimensionar um sistema operando em termossifão, sem recorrer sempre a uma simulação computacional. Como resultado de muitas simulações de sistemas utilizando o programa TRNSYS, variando-se diversos parâmetros do projeto e dados operacionais do sistema, obteve-se um conjunto de expressões que permitem a determinação da eficiência térmica diária (média mensal) do sistema. A correlação desenvolvida contempla os aspectos geométricos e térmicos relacionados ao coletor, ao tanque de armazenamento e às tubulações de conexão, bem como aspectos operacionais tais como carga térmica, radiação solar e temperatura ambiente. Este modelo é capaz de otimizar as variáveis do sistema de aquecimento solar de água por termossifão para os requisitos de uma aplicação específica. A correlação obtida mostra que a eficiência é uma função linear das condições meteorológicas, da qualidade do coletor e dos parâmetros que relacionam o volume do tanque de armazenamento, o volume de carga (perfil de consumo) e a área do coletor. A correlação é muito útil, uma vez que se trata de uma alternativa simples e rápida para o cálculo da eficiência do sistema, sem depender de determinação experimental ou resultados de simulação numérica. O dimensionamento, isto é, a determinação da área do coletor e do volume do tanque de armazenamento que satisfazem de maneira adequada a carga térmica necessária, pode ser realizado de maneira simples e rápida usando essa correlação.Research, Society and Development2020-07-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/567310.33448/rsd-v9i8.5673Research, Society and Development; Vol. 9 No. 8; e382985673Research, Society and Development; Vol. 9 Núm. 8; e382985673Research, Society and Development; v. 9 n. 8; e3829856732525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/5673/4969Copyright (c) 2020 Antonio Marcos de Oliveira Siqueira, Alexandre Gurgel, Zeji Ge, Fernando Ariel Colque, Gabriel Siqueira Silvainfo:eu-repo/semantics/openAccessSiqueira, Antônio Marcos de OliveiraGurgel, AlexandreGe, ZejiColque, Fernando ArielSilva, Gabriel Siqueira2020-08-20T18:00:17Zoai:ojs.pkp.sfu.ca:article/5673Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:29:07.222263Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv A new model for sizing thermosiphon solar heating systems
Un nuevo enfoque para el dimensionamiento de calentadores solares que funcionan con termosifón
Uma nova abordagem para o dimensionamento de aquecedores solares operando por termossifão
title A new model for sizing thermosiphon solar heating systems
spellingShingle A new model for sizing thermosiphon solar heating systems
Siqueira, Antônio Marcos de Oliveira
Aquecimento solar de água
Circulação Natural
Modelo matemático
TRNSYS.
Calentamiento solar de agua
Circulación natural
Modelo matemático
TRNSYS.
Solar water heating
Natural circulation
Mathematical model
TRNSYS.
title_short A new model for sizing thermosiphon solar heating systems
title_full A new model for sizing thermosiphon solar heating systems
title_fullStr A new model for sizing thermosiphon solar heating systems
title_full_unstemmed A new model for sizing thermosiphon solar heating systems
title_sort A new model for sizing thermosiphon solar heating systems
author Siqueira, Antônio Marcos de Oliveira
author_facet Siqueira, Antônio Marcos de Oliveira
Gurgel, Alexandre
Ge, Zeji
Colque, Fernando Ariel
Silva, Gabriel Siqueira
author_role author
author2 Gurgel, Alexandre
Ge, Zeji
Colque, Fernando Ariel
Silva, Gabriel Siqueira
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Siqueira, Antônio Marcos de Oliveira
Gurgel, Alexandre
Ge, Zeji
Colque, Fernando Ariel
Silva, Gabriel Siqueira
dc.subject.por.fl_str_mv Aquecimento solar de água
Circulação Natural
Modelo matemático
TRNSYS.
Calentamiento solar de agua
Circulación natural
Modelo matemático
TRNSYS.
Solar water heating
Natural circulation
Mathematical model
TRNSYS.
topic Aquecimento solar de água
Circulação Natural
Modelo matemático
TRNSYS.
Calentamiento solar de agua
Circulación natural
Modelo matemático
TRNSYS.
Solar water heating
Natural circulation
Mathematical model
TRNSYS.
description The purpose of this work is to present a simple methodology which enables to size a thermosyphon system without always having to resort to a computational simulation. As a result of many system simulations using the TRNSYS software, whereby several project and equipment parameters were varied, a group of expressions were obtained which allow the determination of the system thermal daily efficiency (monthly average). The developed correlation includes geometric and thermal aspects related to the collector, the storage tank and the connecting pipes, as well as operational data such as thermal load, solar radiation and room temperature. This model is able to optimize several variables that comprise thermosyphon solar water-heating systems for the requirements of particular applications. The resulting correlation shows that the efficiency is a linear function of meteorological conditions, collector quality and parameters related to storage tank volume, volume load (consumption profile) and collector area. The correlation is very useful since it is a simple, fast alternative for the calculation of system efficiency without depending on experimental determination or numerical simulation results. The determination and sizing of the collector area and the volume storage tank that satisfy the required thermal load can be appropriately performed in a simple and fast way by using the proposed correlation.
publishDate 2020
dc.date.none.fl_str_mv 2020-07-09
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/5673
10.33448/rsd-v9i8.5673
url https://rsdjournal.org/index.php/rsd/article/view/5673
identifier_str_mv 10.33448/rsd-v9i8.5673
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/5673/4969
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 9 No. 8; e382985673
Research, Society and Development; Vol. 9 Núm. 8; e382985673
Research, Society and Development; v. 9 n. 8; e382985673
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
_version_ 1797052653128122368

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