Solar heating in buildings by using a large storage water tank
This paper shows the feasibility of implementing solar heating in Bariloche (3,600 degrees/day, 8.4°C mean annual temperature) through heat pipe collectors and water contained in insulated water tanks for further use through floor heating systems. Dynamic thermal models are used to optimize the syst...
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Revista INVI
2018
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oai:ojs.revistas.uchile.cl:article-628702020-05-15T11:45:16Z Solar heating in buildings by using a large storage water tank Calefacción solar en edificaciones con acumulación en gran reservorio de agua Juanicó, Luis Eduardo González, Alejandro D. This paper shows the feasibility of implementing solar heating in Bariloche (3,600 degrees/day, 8.4°C mean annual temperature) through heat pipe collectors and water contained in insulated water tanks for further use through floor heating systems. Dynamic thermal models are used to optimize the system in order to meet 13,000 kWh annual demand, which represents both a 50m2 single-family, non-insulated affordable housing unit (260kWh/m2) or a 100m2 insulated unit (130 kWh/m2.) Such a demand could be met through five standard collectors, each containing 20 pipes (2,088m2, opening area), and a 63m3 tank at a cost of USD 27,000 or eight collectors and an 11m3 tank at a cost of USD 11,650. This paper discusses the reasons why Bariloche, whose mean temperature is similar to that of developed countries located in cold areas, achieves more economical solutions such as: a) the use of vacuum collectors instead of flat-plate collectors; b) properly distributed solar resources and heat demand; and c) an affordable type of water tank that enables proper insulation. This study concludes there is potential for the implementation of this technology in large parts of South America requiring heating solutions. Este trabajo muestra la factibilidad de calefacción solar en Bariloche (3.600 grados-día/año, 8.4 °C media anual) empleando colectores tipo heat pipe y almacenamiento en un reservorio de agua aislado y utilizarlo mediante piso radiante. Mediante modelos térmicos dinámicos, se optimiza el sistema para una demanda anual de 13.000 kWh, que representa tanto una típica vivienda unifamiliar económica de 50 m2 (sin aislación térmica, 260kWh/m2) u otra de 100 m2 con aislamiento (130 kWh/m2). Esta demanda se podría satisfacer con cinco colectores estándar de 20 tubos (2.088 m2 de área apertura) y un gran tanque de 63 m3 a un costo de USD 27.000; pero también instalando ocho colectores se reduciría el tanque a 11 m3 y la inversión a 11.650 USD. Se discuten los motivos por los cuales, en Bariloche, siendo su temperatura media similar a la de países desarrollados de zona fría, se obtienen soluciones mucho más económicas: a) uso de colectores de vacío en lugar de planos; b) recurso solar y demanda de calefacción más distribuidos en el tiempo; c) tipo de reservorio escogido facilita su adecuada aislación y bajo coste. Se concluye que existe potencial para la aplicación de esta tecnología en una amplia región de Sudamérica con demanda de calefacción. Revista INVI 2018-08-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/xml https://revistainvi.uchile.cl/index.php/INVI/article/view/62870 Revista INVI; Vol. 33 Núm. 93 (2018); 153-172 0718-8358 0718-1299 spa https://revistainvi.uchile.cl/index.php/INVI/article/view/62870/66745 https://revistainvi.uchile.cl/index.php/INVI/article/view/62870/66774 Derechos de autor 2018 Revista INVI |
| institution |
Universidad de Chile |
| collection |
OJS |
| language |
spa |
| format |
Online |
| author |
Juanicó, Luis Eduardo González, Alejandro D. |
| spellingShingle |
Juanicó, Luis Eduardo González, Alejandro D. Solar heating in buildings by using a large storage water tank |
| author_facet |
Juanicó, Luis Eduardo González, Alejandro D. |
| author_sort |
Juanicó, Luis Eduardo |
| title |
Solar heating in buildings by using a large storage water tank |
| title_short |
Solar heating in buildings by using a large storage water tank |
| title_full |
Solar heating in buildings by using a large storage water tank |
| title_fullStr |
Solar heating in buildings by using a large storage water tank |
| title_full_unstemmed |
Solar heating in buildings by using a large storage water tank |
| title_sort |
solar heating in buildings by using a large storage water tank |
| description |
This paper shows the feasibility of implementing solar heating in Bariloche (3,600 degrees/day, 8.4°C mean annual temperature) through heat pipe collectors and water contained in insulated water tanks for further use through floor heating systems. Dynamic thermal models are used to optimize the system in order to meet 13,000 kWh annual demand, which represents both a 50m2 single-family, non-insulated affordable housing unit (260kWh/m2) or a 100m2 insulated unit (130 kWh/m2.) Such a demand could be met through five standard collectors, each containing 20 pipes (2,088m2, opening area), and a 63m3 tank at a cost of USD 27,000 or eight collectors and an 11m3 tank at a cost of USD 11,650. This paper discusses the reasons why Bariloche, whose mean temperature is similar to that of developed countries located in cold areas, achieves more economical solutions such as: a) the use of vacuum collectors instead of flat-plate collectors; b) properly distributed solar resources and heat demand; and c) an affordable type of water tank that enables proper insulation. This study concludes there is potential for the implementation of this technology in large parts of South America requiring heating solutions. |
| publisher |
Revista INVI |
| publishDate |
2018 |
| url |
https://revistainvi.uchile.cl/index.php/INVI/article/view/62870 |
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