Simulación y evaluación de puentes térmicos: Soluciones constructivas típicas aprobadas por la Norma Térmica para elementos verticales en estructura de madera y metálicos en la Zona 4 Simulaciones con Therm y Usai y evaluación con Método de Cámara Térmica

Muñoz, Cecilia Gallegos; Bobadilla, Ariel

doi:10.4067/s0718-915x2012000200009

Cited by 6 publications

(5 citation statements)

References 1 publication

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“…Scilicet, labor and school absenteeism reduction are associated to the comfort conditions, higher labor and school productivity, energy consumption is reduced, greenhouse effect gas emissions are shortened, etc. Also, is important consider other topics for efficiently improve houses in Chile, for example, Muñoz & Bobadilla (2012) do mention to thermal bridges in construction, using theoretical and experimental methods.…”

Section: Discussionmentioning

confidence: 99%

Application of a grant in thermal reconditioning houses in the Metropolitan Region of Chile

Gallegos

Marín

2019

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Currently in Chile several programs are used in order to promote sustainable construction. On this scenario was created S.D. N°. 255 of the House and Urban Development Minister of Chile which, among other objectives, seeks to thermally refurbish houses to provide greater comfort to the inhabitants of this. In practice, this thermal reconditioning has not been implemented in the Metropolitan Region due to in none of its versions funds have been allocated to it. This paper quantifies how much the social benefit would increase if the subsidy was applied in RM. For this, various representative dwellings of housing stock were modeled and was done an economic analysis that led to the conclusion that it is beneficial, at least from a social standpoint, its application.

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Section: Discussionmentioning

confidence: 99%

Application of a grant in thermal reconditioning houses in the Metropolitan Region of Chile

Gallegos

Marín

2019

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“…When analyzing the thermal performance of an envelope, the evaluation of the thermal bridge produced is necessary to obtain precise results, as these can cause clear heat losses (Muñoz & Bobadilla, 2012) especially in wood-frame solutions, since on structures comprising wooden elements, the bridges of the joints are the ones which can generate the most significant losses at a heat transmission level (Tadeu, Simões, Simões, & Prata, 2011). In this stage, a thermal flow study was performed in order to assess the occurrence of structural thermal bridges for each one of the six solutions, not only on the linear section of the wall, but also on the joints of the envelope's elements.…”

Section: Stage (C): Thermal Flow Study Of the Envelopementioning

confidence: 99%

“…This set the indoor and outdoor temperature of the detail at 20°C and 0°C respectively. In addition, using these values can help when comparing the results with other envelope studies, such as the one presented by Muñoz & Bobadilla (2012), which use these values as reference.…”

Section: Therm Software Settingsmentioning

confidence: 99%

Energy assessment of wood-frame vertical envelope solutions applied in educational establishments of southern Chile

Piggot

Piderit

Blanchet

2019

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The objective of this research is to analyze the thermal performance of wood-frame vertical envelope solutions used in Canadian establishments and to evaluate how these technologies contribute towards reducing the energy demand of educational establishments in Chile. The first stage of the research involved reviewing the wood-frame envelope solutions used in Canada. Six solutions were selected in order to evaluate their thermal performance and the energy demand reduction produced when they are incorporated in Chilean educational establishment envelopes. To improve the accuracy of the energy demand results, the linear thermal transmittance values (Ψ) were obtained for each of the wall solution joints with the rest of the envelope's elements, using LBNL Therm. Finally, using DesignBuilder, energy simulations were developed incorporating all the values (Ψ) obtained before, in order to evaluate the demand reduction produced by the selected solutions. The results indicate that the solutions analyzed save up to 51% of the heating demand of the establishments during the coldest months. This allows promoting the use of wood as a sustainable material which aligns with the "Energy 2050" policy.

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“…The additional benefit of the GFRP pultrusions is their low thermal conductivity which reduces unwanted heat transfer and the risk of condensation. Muñoz and Bobadilla (2012) undertook the task of developing a range of thermally efficient façade systems through an process that involved U-value and condensation risk assessment calculations. The performance of the initial design was assessed and then modifications were proposed in an iterative process.…”

Section: Thermal Transmissionmentioning

confidence: 99%

Thermal performance of novel frame-integrated unitised curtain wall

Cordero¹,

García-Santos²,

Overend

2015

Revista de la Construcción

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ResumenEl diseño de los marcos de aluminio en muros cortina modulares podría ser más eficiente estructuralmente y térmicamente: se podría aprovechar la rigidez de los vidrios para reducir la profundidad estructural y se podrían emplear materiales de menor conductividad térmica que el aluminio. Estas propuestas se han aplicado en el desarrollo de un sistema de muro cortina alternativo en el cual se emplean adhesivos para adherir los montantes al vidrio y conseguir un panel compuesto de gran rigidez. Esto permite reducir la profundidad de los montantes e integralos en el plano del vidrio. La tranmisión térmica se reduce sustituyendo el aluminio por polímeros reforzados de fibra de vidrio. En este artículo se describe el sistema propuesto y se compara su comportamiento térmico con el de un sistema tradicional a través de cálculo analítico y numérico.Palabras clave: Muro cortina; marco; térmico. AbstractFraming of unitized curtain walls is dimensioned to carry wind load without taking advantage of potential composite contribution of glass. Subsequently, it is unnecessarily deep, occupying valuable space, and protrudes to the inside, causing visual disruption. Moreover, it is generally made of high thermal conductivity metal alloys, contributing to substantial thermal transmission at joints. An innovative frame-integrated unitised curtain wall has been developed that, compared to conventional systems, reduces structural depth significantly, allows an inside flush finish and reduces thermal transmission at joints. The idea is to adhesively bond a Glass Fibre Reinforced Polymer (GFRP) frame to the edge of the Insulated Glass Unit (IGU), thereby achieving low thermal transmittance and composite structural behaviour. The frame is to fit within the glazing cavity depth. This paper provides a description of the proposed system and assesses its thermal transmittance and risk of condensation through comparative analytical and numerical thermal analysis with a conventional system taken as reference.

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Simulación y evaluación de puentes térmicos: Soluciones constructivas típicas aprobadas por la Norma Térmica para elementos verticales en estructura de madera y metálicos en la Zona 4 Simulaciones con Therm y Usai y evaluación con Método de Cámara Térmica

Cited by 6 publications

References 1 publication

Application of a grant in thermal reconditioning houses in the Metropolitan Region of Chile

Application of a grant in thermal reconditioning houses in the Metropolitan Region of Chile

Energy assessment of wood-frame vertical envelope solutions applied in educational establishments of southern Chile

Thermal performance of novel frame-integrated unitised curtain wall

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