Thermal transport in: Building materials

Pezeshki, Zahra; Soleimani, Ali; Darabi, Ahmad; Mazinani, Seyyed Majid

doi:10.1016/j.conbuildmat.2018.05.230

Cited by 32 publications

(12 citation statements)

References 29 publications

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“…The evaluation of thermal transport in building materials was carried out by different procedures, both experimentally and through simulations based on the intrinsic physical characteristics of the material [37]. Likewise, for the evaluation of the thermal behavior of masonry facade systems, in-situ standardized measurements methods can be applied to a prototype [38] or heat transfer simulations based on the characteristics of the different layers of the facades can be performed.…”

Section: Methodsmentioning

confidence: 99%

Performance validation and manufacture feasibility for an advanced constructive system considering facilities integration

Rivera-Gómez

Pérez-Fenoy²,

Entrenas-Angulo

et al. 2020

Journal of Building Engineering

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The growing demand to save material and energy resources, and increasing concern over environmental issues, are forcing solutions that entail a lower environmental impact of the materials and products used. This is particularly relevant for internal wall partitions which, due to their volume, greatly contribute to the environmental repercussion of buildings. A significant percentage of this impact is waste derived from the integration of plumbing and electricity installations. The present research deals with the development of a new ceramic system for partitions and internal facade sheets that enable the integration of facilities with minimum waste generation. The proposed ceramic system ensures an appropriate thermal, acoustic and mechanical performance. In addition to the design description and manufacturing process, acoustic performance is measured by empirical validation, while thermal performance by numerical simulations via the finite element method (FEM). Mechanical performance is assessed by a set of experimental tests carried out on masonry walls subject to different load types, and by FEM simulation. From the results obtained, it is possible to conclude that the innovative masonry unit fulfills all the thermal, acoustic and mechanical requirements prescribed for partition systems, even improving on the results for conventional solutions.

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Section: Methodsmentioning

confidence: 99%

Performance validation and manufacture feasibility for an advanced constructive system considering facilities integration

Rivera-Gómez

Pérez-Fenoy²,

Entrenas-Angulo

et al. 2020

Journal of Building Engineering

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“…The thermal response of the building envelope is determining by the thermal characteristics of individual construction materials and its configuration. The factors that affect the thermal properties of a material, especially thermal conductivity, must be considered to correctly determine the energy performance of the materials by its composing material's configuration, namely individual microstructure of its composing material [2]. The heat transfer flow process in the material can see in Figure 7.…”

Section: B Heat Transfer System In Materialsmentioning

confidence: 99%

The Effect of Peat Soil on Room Temperature in Type-36 Housing in Palangkaraya

Ricardo¹,

Satwiko²,

Sekarlangit³

et al. 2020

Proceedings of the EduARCHsia &Amp; Senvar 2019 International Conference (EduARCHsia 2019)

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Settlement and housing development is the main activity in arranging the spatial layout of Palangkaraya, focusing mainly on the small-type house like type-36. Most of the type-36 housings planned by the developer are on peatland. Indonesia's Public Housing Minister states that the type-36 house is appropriate for the minimum health standard. The construction system used in type-36 housing in Palangkaraya is reinforced concrete frame construction, light concrete brick wall, ceramic floor, light steel roof (roof cover made of multiroof material), and rubble stone or chicken claw foundation, and located on peatland. The authors checked the peatland using an infrared camera (FLIR i5) as the instrument. The result showed that the most significant room heat gain came from conducted peat soil (heat transfer) toward the foundation and then followed with the building's floor and wall. Such the process is called thermal bridges. From the thermal bridges process, the authors tried to solve the problem by developing thermal barriers to overcome the heat entering the type-36 house. This research used an experimental and simulation method using CFD-CADalyzer software.Data included peat temperature affecting the building temperature collected using an IR FLIR i5 camera and an infrared thermometer. Soil temperature, air humidity, and wind speed data were taken from Palangkaraya's BMKG (Meteorology, Climatology, and Geophysics Agency). The research result was a foundation design that reduced heat gain (thermal barriers) due to the thermal bridges process. It added thermal insulation made of mineral wool and polyurethane to the existing foundation. These materials are integrating the rubble stone foundation by adding heat-insulating (mineral wool and polyurethane) materials only. The materials lowered the room temperature from 47.4°C and 45.8°C to 34oC -33oC. The not recommended alternative is to use sole (chicken claw) foundation structure on which the air cavity was developing. It makes the room temperature hotter, due to air expansion process occurring because of heat transfer on floor and wall materials without using heat insulation.

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“…These are higher than the regulation OTTV and RTTV codes for a hospital building [25], it implies that the Sirinthorn building's existing envelope cannot protect from heat transfer. The material analysis highlights three possible practices:section1 is using insulation on the walls to protect against heat transfer, and replacing the existing material by using low U-value material [25], [26]for an opaque wall; And section 2is selecting a glass panel with a low SHGC (Solar Heat Gain Coefficient) [27]value for mullion glasses. SHGC is also named as the 'solar factor', it is the total solar energy transmittance factor through a glazing system separating two environments (outdoor and indoor) [25].…”

Section: Building Ottv/rttv Solution and The Principlementioning

confidence: 99%

“…During the trial and error in the framework (Figure 8) by 'testing it with observation' [29]with BEC, it implies that the important factors that affect the thermal properties of a material are especially the values of 1) thermal conductivity [26], 2) density and 3) specific heat. Moreover, the research discovered that the optimal value of the material characteristics for this hospital facade should not exceed 0.039 W/mˑK, 12 kg/m3, 0.96 kJ/kgˑK as shown inTable 9.…”

Section: Building Ottv/rttv Solution and The Principlementioning

confidence: 99%

Heritage envelope refurbishment to manage OTTV, RTTV and preservation: The case of Sirinthorn building of Rajavithi Hospital, Bangkok

2020

IJETER

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This paper aims to reflect the refurbishment concept for a heritage building envelope for energy conservation, in particular decreasing the thermal transfer by material application. The Sirinthorn building, a heritage hospital in Bangkok is discussed as a case study which focuses on two main issues -thermal transfer by concepts that are consistent with the hospital building renovation rules, and the improvement of the conservation architecture. Factors influencing the framework include building location and environment, local regulations, an existing interior function, the materials selection concept, building shape and its identity, and conservation guidelines related to an area. The methodology is implemented by investigating the Overall Thermal Transfer Value (OTTV) and Roof Thermal Transfer Value (RTTV) from the existing envelope, in addition to 'trial and error in the selection of parameters for the heat insulation properties of industrial materials. The research output offers an optional model for the envelope refurbishment for the Sirinthorn renovation project where the effect from surrounding is discussed. The envelope is refurbished cooperatively between annexing interior insulation and restoring heritage external surfaces. Its result not only reduces the OTTV and RTTV of the case study below that of the Thai energy code, but also conserves the heritage character of the building. The outcome demonstrates the option for the use of opaque and transparent materials with properties both to save energy, internal outcome to patient zone and provide architectural conservation.

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Thermal transport in: Building materials

Cited by 32 publications

References 29 publications

Performance validation and manufacture feasibility for an advanced constructive system considering facilities integration

Performance validation and manufacture feasibility for an advanced constructive system considering facilities integration

The Effect of Peat Soil on Room Temperature in Type-36 Housing in Palangkaraya

Heritage envelope refurbishment to manage OTTV, RTTV and preservation: The case of Sirinthorn building of Rajavithi Hospital, Bangkok

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