Estrazulas Oliveski 2016a - Revision history

Rimni at 11:25, 13 June 2017

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Rimni at 11:23, 13 June 2017

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Scipediacontent at 11:38, 19 May 2017

2017-05-19T11:38:16Z

Scipediacontent at 10:39, 8 May 2017

2017-05-08T10:39:20Z

Rimni: Rimni moved page Draft Samper 486932730 to Estrazulas Oliveski 2016a

2017-04-28T15:39:27Z

Rimni moved page Draft Samper 486932730 to Estrazulas Oliveski 2016a

Rimni at 11:49, 17 March 2017

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Rimni at 11:48, 17 March 2017

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Rimni at 08:53, 16 March 2017

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 ==Referências==
 [1] U.S. Department Of Energy. Building Energy Data Book. Disponível em [http://buildingsdatabook.eren.doe.gov/TableView.aspx?table=1.1.3 http://buildingsdatabook.eren.doe.gov/TableView.aspx?table=1.1.3]. Acesso em 22 de março de 2015.
@@ Line 1,060: / Line 1,062: @@
 [20] Sparrow E.M., Broadbent J.A. Inward melting in a vertical tube which allows free expansion of the phase-change medium, ASME Journal of Heat Transfer, 104:309-315, 1982.

@@ Line 1: / Line 1: @@
-===Resumo===
+==Resumo==
 Inúmeras aplicações residenciais, comerciais e industriais tem seu rendimento aumentado quando um sistema de armazenamento de energia térmica é incorporado. Os PCMs (Phase Change Materials), devido ao seu alto calor latente de fusão, são materiais que representam uma alternativa viável à implementação de sistemas de armazenamento de energia térmica. Este trabalho apresenta um estudo numérico do processo de fusão de PCMs da família RT (Rubitherm Technologies GmbH) em cavidades cilíndricas. O estudo foi realizado através de simulação numérica por CFD (Computational Fluid Dynamics), com o software ANSYS Fluent. O modelo numérico adotado é bidimensional e foi validado com resultados numéricos e experimentais da literatura, obtendo-se boa aproximação. Para os PCMs aqui estudados, aumentando-se a temperatura de 10 <sup>o</sup>C para 20 <sup>o</sup>C e de 10 <sup>o</sup>C para 30 <sup>o</sup>C, acima da temperatura de mudança de fase, para frações líquidas entre 0,4 e 0,8, a redução média dos tempos de fusão é de, aproximadamente, 55,8% e 71,8%, respectivamente.
@@ Line 5: / Line 5: @@
 '''Palavras-chave''': Armazenamento térmico, phase change materials, PCM, CFD.
-===Abstract===
+==Abstract==
 Several residential, commercial and industrial applications have their efficiency increased when a thermal energy storage system is incorporated. The PCMs (Phase Change Materials), due to their high latent heat of fusion, are materials that represent a viable alternative to the implementation of thermal energy storage systems. This paper presents a numerical study of RT (Rubitherm Technologies GmbH) PCMs family fusion process in cylindrical cavities. The study was conducted through a CFD ''(''Computational Fluid Dynamics) numerical simulation, with ANSYS Fluent software. The numeric model adopted is two-dimensional and has been validated with numerical and experimental results of literature, achieving a good approximation. For PCMs here studied, increasing the temperature from 10 ''<sup>o</sup>C'' to 20 ''<sup>o</sup>C'' and 10 ''<sup>o</sup>C'' to 30 ''<sup>o</sup>C'', above the phase change temperature, for liquid fractions between 0.4 and 0.8, the average reduction of fusion time is approximately 55.8% and 71.8 %, respectively.
 ==1 Introdução==

@@ Line 1: / Line 1: @@
+===Resumo===
-'''Resumo'''
 Inúmeras aplicações residenciais, comerciais e industriais tem seu rendimento aumentado quando um sistema de armazenamento de energia térmica é incorporado. Os PCMs (Phase Change Materials), devido ao seu alto calor latente de fusão, são materiais que representam uma alternativa viável à implementação de sistemas de armazenamento de energia térmica. Este trabalho apresenta um estudo numérico do processo de fusão de PCMs da família RT (Rubitherm Technologies GmbH) em cavidades cilíndricas. O estudo foi realizado através de simulação numérica por CFD (Computational Fluid Dynamics), com o software ANSYS Fluent. O modelo numérico adotado é bidimensional e foi validado com resultados numéricos e experimentais da literatura, obtendo-se boa aproximação. Para os PCMs aqui estudados, aumentando-se a temperatura de 10 <sup>o</sup>C para 20 <sup>o</sup>C e de 10 <sup>o</sup>C para 30 <sup>o</sup>C, acima da temperatura de mudança de fase, para frações líquidas entre 0,4 e 0,8, a redução média dos tempos de fusão é de, aproximadamente, 55,8% e 71,8%, respectivamente.
-'''Abstract'''
+'''Palavras-chave''': Armazenamento térmico, phase change materials, PCM, CFD.
 Several residential, commercial and industrial applications have their efficiency increased when a thermal energy storage system is incorporated. The PCMs (Phase Change Materials), due to their high latent heat of fusion, are materials that represent a viable alternative to the implementation of thermal energy storage systems. This paper presents a numerical study of RT (Rubitherm Technologies GmbH) PCMs family fusion process in cylindrical cavities. The study was conducted through a CFD ''(''Computational Fluid Dynamics) numerical simulation, with ANSYS Fluent software. The numeric model adopted is two-dimensional and has been validated with numerical and experimental results of literature, achieving a good approximation. For PCMs here studied, increasing the temperature from 10 ''<sup>o</sup>C'' to 20 ''<sup>o</sup>C'' and 10 ''<sup>o</sup>C'' to 30 ''<sup>o</sup>C'', above the phase change temperature, for liquid fractions between 0.4 and 0.8, the average reduction of fusion time is approximately 55.8% and 71.8 %, respectively.
 ==1 Introdução==

@@ Line 1: / Line 1: @@
 '''Resumo'''
 Inúmeras aplicações residenciais, comerciais e industriais tem seu rendimento aumentado quando um sistema de armazenamento de energia térmica é incorporado. Os PCMs (Phase Change Materials), devido ao seu alto calor latente de fusão, são materiais que representam uma alternativa viável à implementação de sistemas de armazenamento de energia térmica. Este trabalho apresenta um estudo numérico do processo de fusão de PCMs da família RT (Rubitherm Technologies GmbH) em cavidades cilíndricas. O estudo foi realizado através de simulação numérica por CFD (Computational Fluid Dynamics), com o software ANSYS Fluent. O modelo numérico adotado é bidimensional e foi validado com resultados numéricos e experimentais da literatura, obtendo-se boa aproximação. Para os PCMs aqui estudados, aumentando-se a temperatura de 10 <sup>o</sup>C para 20 <sup>o</sup>C e de 10 <sup>o</sup>C para 30 <sup>o</sup>C, acima da temperatura de mudança de fase, para frações líquidas entre 0,4 e 0,8, a redução média dos tempos de fusão é de, aproximadamente, 55,8% e 71,8%, respectivamente.
 '''Abstract'''
 Several residential, commercial and industrial applications have their efficiency increased when a thermal energy storage system is incorporated. The PCMs (Phase Change Materials), due to their high latent heat of fusion, are materials that represent a viable alternative to the implementation of thermal energy storage systems. This paper presents a numerical study of RT (Rubitherm Technologies GmbH) PCMs family fusion process in cylindrical cavities. The study was conducted through a CFD ''(''Computational Fluid Dynamics) numerical simulation, with ANSYS Fluent software. The numeric model adopted is two-dimensional and has been validated with numerical and experimental results of literature, achieving a good approximation. For PCMs here studied, increasing the temperature from 10 ''<sup>o</sup>C'' to 20 ''<sup>o</sup>C'' and 10 ''<sup>o</sup>C'' to 30 ''<sup>o</sup>C'', above the phase change temperature, for liquid fractions between 0.4 and 0.8, the average reduction of fusion time is approximately 55.8% and 71.8 %, respectively.
 ==1 Introdução==

@@ Line 5: / Line 5: @@
 FTEC - Caxias do Sul, RS BRAZIL
-<span style="font-size: 85%;">'''Received''': 11 January 2016<br />
 '''Accepted''': 19 September 2016<br />
 '''Published''': July 2017</span>

← Older revision	Revision as of 15:39, 28 April 2017
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@@ Line 1,037: / Line 1,037: @@
 ==Referências==
-{| style="width: 100%;"
+[1] U.S. Department Of Energy. Building Energy Data Book. Disponível em [http://buildingsdatabook.eren.doe.gov/TableView.aspx?table=1.1.3 http://buildingsdatabook.eren.doe.gov/TableView.aspx?table=1.1.3]. Acesso em 22 de março de 2015.
-|-
-| style="text-align: right;vertical-align: top;"|[1]
+[2] European Comission. Statistical Pocketbook 2014. Disponível em: [http://ec.europa.eu/transport/facts-fundings/statistics/pocketbook-2014_en.htm http://ec.europa.eu/transport/facts-fundings/statistics/pocketbook-2014_en.htm]. Acesso em 22 de março de 2015.
-| style="vertical-align: top;"| U.S. Department Of Energy. Building Energy Data Book. Disponível em [http://buildingsdatabook.eren.doe.gov/TableView.aspx?table=1.1.3 http://buildingsdatabook.eren.doe.gov/TableView.aspx?table=1.1.3]. Acesso em 22 de março de 2015.
-|-
+[3] Ministério De Minas E Energia. Balanço Energético Nacional – Ano Base 2013. Disponível em: [https://ben.epe.gov.br/BENRelatorioFinal2013.aspx https://ben.epe.gov.br/BENRelatorioFinal2013.aspx]. Acesso em 22 de março de 2015.
-| style="text-align: right;vertical-align: top;"|[2]
-| style="vertical-align: top;"| European Comission. Statistical Pocketbook 2014. Disponível em: [http://ec.europa.eu/transport/facts-fundings/statistics/pocketbook-2014_en.htm http://ec.europa.eu/transport/facts-fundings/statistics/pocketbook-2014_en.htm]. Acesso em 22 de março de 2015.
+[4] Agyenim F., Hewitt N., Eames P., Smyth M.  A review of materials, heat transfer and phase change problem formulation for latent heat thermal energy storage systems (LHTESS). Renewable and Sustainable Energy Reviews, 14:615-628, 2010.
-|-
-| style="text-align: right;vertical-align: top;"|[3]
+[5] Pielichowska K., Pielichowski K. Phase change materials for termal energy storaga. Progress in Materials Science, 65:67-123, 2014.
-| style="vertical-align: top;"|Ministério De Minas E Energia. Balanço Energético Nacional – Ano Base 2013. Disponível em: [https://ben.epe.gov.br/BENRelatorioFinal2013.aspx https://ben.epe.gov.br/BENRelatorioFinal2013.aspx]. Acesso em 22 de março de 2015.
-|-
+[6] Zhou D., Zhao C.Y., Tian Y. Review on termal energy storage with phase change materials in building applications. Applied Energy, 92:593-605, 2012.
-| style="text-align: right;vertical-align: top;"|[4]
-| style="vertical-align: top;"|Agyenim F., Hewitt N., Eames P., Smyth M.  A review of materials, heat transfer and phase change problem formulation for latent heat thermal energy storage systems (LHTESS). Renewable and Sustainable Energy Reviews, 14:615-628, 2010.
+[7] Al-Abidi A.A., Mat S.B., Sopian K., Sulaiman M.Y., Lim C.H., Mohammad A.T.A. Review of thermal energy storage for air conditioning systems. Renewable and Sustainable Energy Reviews,  16:5802-5819, 2012.
-|-
-| style="text-align: right;vertical-align: top;"|[5]
+[8] Oró E., Gracia A., Castell A., Farid M.M., Cabeza L.F. Review on phase change materials (PCMs) for cold termal energy storage applications. Applied Energy, 99:513-533, 2012.
-| style="vertical-align: top;"|Pielichowska K., Pielichowski K. Phase change materials for termal energy storaga. Progress in Materials Science, 65:67-123, 2014.
-|-
+[9] Mehling H., Cabeza L.F. Heat and cold storage with PCM: An up to date introduction into basics and applications. 1st Ed. Berlin, Springer, 2008.
-| style="text-align: right;vertical-align: top;"|[6]
-| style="vertical-align: top;"|Zhou D., Zhao C.Y., Tian Y. Review on termal energy storage with phase change materials in building applications. Applied Energy, 92:593-605, 2012.
+[10] Murray R.E., Groulx D. Experimental study of the phase change and energy characteristics inside a cylindrical latent heat energy storage system: Part 1 consecutive charging and discharging. Renewable Energy, 62:571-581, 2014.
-|-
-| style="text-align: right;vertical-align: top;"|[7]
+[11] Longeon M., Soupart A., Fourmigué J.F., Bruch A., Marty P. Experimental and numerical study of annular PCM storage in the presence of natural convection. Applied Energy, 112:175-184, 2013.
-| style="vertical-align: top;"|Al-Abidi A.A., Mat S.B., Sopian K., Sulaiman M.Y., Lim C.H., Mohammad A.T.A. Review of thermal energy storage for air conditioning systems. Renewable and Sustainable Energy Reviews,  16:5802-5819, 2012.
-|-
+[12] Zeng Y., Fan L.W., Xiao Y.Q., Yu Z.T., Cen K.F. An experimental investigation of melting of nanoparticle-enhanced phase change materials (NePCMs) in a bottom-heated vertical cylindrical cavity. Int. J. of Heat and Mass Transfer, 66:111-117, 2013.
-| style="text-align: right;vertical-align: top;"|[8]
-| style="vertical-align: top;"|Oró E., Gracia A., Castell A., Farid M.M., Cabeza L.F. Review on phase change materials (PCMs) for cold termal energy storage applications. Applied Energy, 99:513-533, 2012.
+[13] Al-Abidi A.A., Mat S.B., Sopian K., Sulaiman M.Y., Mohammad A.T. Numerical study of PCM solidification in a triplex tube heat exchanger with internal and external fins. Int. Journal of Heat and Mass Transfer, 61:684-695, 2013.
-|-
-| style="text-align: right;vertical-align: top;"|[9]
+[14] Tay N.H., Bruno F., Belusko M. Experimental investigation of dynamic melting in a tube-in-tank PCM system. Applied Energy, 104:137-148, 2013.
-| style="vertical-align: top;"|Mehling H., Cabeza L.F. Heat and cold storage with PCM: An up to date introduction into basics and applications. 1st Ed. Berlin, Springer, 2008.
-|-
+[15] Kalaiselvam S., Veerappan M., Aaron A.A., Iniyan S. Experimental and analytical investigation of solidification and melting of PCMs inside cylindrical encapsulation. Int. J. of Thermal Sciences, 47:858-874, 2008.
-| style="text-align: right;vertical-align: top;"|[10]
-| style="vertical-align: top;"|Murray R.E., Groulx D. Experimental study of the phase change and energy characteristics inside a cylindrical latent heat energy storage system: Part 1 consecutive charging and discharging. Renewable Energy, 62:571-581, 2014.
+[16] Rubitherm. Disponível em [http://www.rubitherm.de/english/index.htm http://www.rubitherm.de/english/index.htm]. Acesso em 07 de maio de 2014.
-|-
-| style="text-align: right;vertical-align: top;"|[11]
+[17] Shmueli H., Ziskind G., Letan R. Melting in a vertical cylindrical tube: Numerical investigation and comparison with experiments.  Int. J. of Heat and Mass Transfer, 53:4082-4091, 2010.
-| style="vertical-align: top;"|Longeon M., Soupart A., Fourmigué J.F., Bruch A., Marty P. Experimental and numerical study of annular PCM storage in the presence of natural convection. Applied Energy, 112:175-184, 2013.
-|-
+[18] Brent A.D., Voller V.R. Enthalpy-porosity technique for modeling convection-diffusion phase change – application to the melting of a pure metal.  Numerical Heat Transfer, 13:297-318, 1988.
-| style="text-align: right;vertical-align: top;"|[12]
-| style="vertical-align: top;"|Zeng Y., Fan L.W., Xiao Y.Q., Yu Z.T., Cen K.F. An experimental investigation of melting of nanoparticle-enhanced phase change materials (NePCMs) in a bottom-heated vertical cylindrical cavity. Int. J. of Heat and Mass Transfer, 66:111-117, 2013.
+[19] Katsman L. Investigation of phase change in cylindrical geometry with internal fins. M.Sc. Thesis, Heat Transfer Laboratory, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel, 2006.
-|-
-| style="text-align: right;vertical-align: top;"|[13]
+[20] Sparrow E.M., Broadbent J.A. Inward melting in a vertical tube which allows free expansion of the phase-change medium, ASME Journal of Heat Transfer, 104:309-315, 1982.
-| style="vertical-align: top;"|Al-Abidi A.A., Mat S.B., Sopian K., Sulaiman M.Y., Mohammad A.T. Numerical study of PCM solidification in a triplex tube heat exchanger with internal and external fins. Int. Journal of Heat and Mass Transfer, 61:684-695, 2013.
-|-
-| style="text-align: right;vertical-align: top;"|[14]
-| style="vertical-align: top;"|Tay N.H., Bruno F., Belusko M. Experimental investigation of dynamic melting in a tube-in-tank PCM system. Applied Energy, 104:137-148, 2013.
-|-
-| style="text-align: right;vertical-align: top;"|[15]
-| style="vertical-align: top;"|Kalaiselvam S., Veerappan M., Aaron A.A., Iniyan S. Experimental and analytical investigation of solidification and melting of PCMs inside cylindrical encapsulation. Int. J. of Thermal Sciences, 47:858-874, 2008.
-|-
-| style="text-align: right;vertical-align: top;"|[16]
-| style="vertical-align: top;"|Rubitherm. Disponível em [http://www.rubitherm.de/english/index.htm http://www.rubitherm.de/english/index.htm]. Acesso em 07 de maio de 2014.
-|-
-| style="text-align: right;vertical-align: top;"|[17]
-| style="vertical-align: top;"|Shmueli H., Ziskind G., Letan R. Melting in a vertical cylindrical tube: Numerical investigation and comparison with experiments.  Int. J. of Heat and Mass Transfer, 53:4082-4091, 2010.
-|-
-| style="text-align: right;vertical-align: top;"|[18]
-| style="vertical-align: top;"|Brent A.D., Voller V.R. Enthalpy-porosity technique for modeling convection-diffusion phase change – application to the melting of a pure metal.  Numerical Heat Transfer, 13:297-318, 1988.
-|-
-| style="text-align: right;vertical-align: top;"|[19]
-| style="vertical-align: top;"|Katsman L. Investigation of phase change in cylindrical geometry with internal fins. M.Sc. Thesis, Heat Transfer Laboratory, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel, 2006.
-|-
-| style="text-align: right;vertical-align: top;"|[20]
-| style="vertical-align: top;"|Sparrow E.M., Broadbent J.A. Inward melting in a vertical tube which allows free expansion of the phase-change medium, ASME Journal of Heat Transfer, 104:309-315, 1982.