Hygrothermal study of lightweight concrete hollow bricks: A new proposed experimental–numerical method

Díaz, Juan José del Coz; Rabanal, Felipe Pedro Álvarez; Gençel, Osman; Nieto, P.J. Garcı́a; Alonso-Martínez, Mar; Navarro-Manso, Antonio; Prendes-Gero, María-Belén

doi:10.1016/j.enbuild.2013.11.060

Cited by 32 publications

(9 citation statements)

References 29 publications

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“…RSM is used to generate input and output relationship between process variables and to predict the response for the given input variables within the limit. 16–23…”

Section: Introductionmentioning

confidence: 99%

Optimization of activated tungsten inert gas welding of super duplex alloy 2507 based on experimental results

Korra

Balasubramanian

Vasudevan

2014

Proceedings of the Institution of Mechanical Engineers, Part B:

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In this work, the effect of activated tungsten inert gas welding process parameters on the depth of penetration of super duplex stainless steel alloy 2507 has been analyzed using response surface methodology. The design matrix for conducting the experiments was generated using the central composite rotatable design of response surface methodology of design of experiments. The input process parameters like current, torch speed and arc gap were varied at five levels. Based on the generated design matrix, bead-on-plate welds were made on 10-mm-hick super duplex stainless steel plate. The depth of penetration, which is the response in the present analysis, was measured on the samples. A second-order response surface model was developed. Then, response optimization was performed for obtaining the maximum depth of penetration using desirability approach. The validation of the model showed good agreement between the predicted and actual values of depth of penetration.

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“…RSM is used to generate input and output relationship between process variables and to predict the response for the given input variables within the limit. 16–23…”

Section: Introductionmentioning

confidence: 99%

Optimization of activated tungsten inert gas welding of super duplex alloy 2507 based on experimental results

Korra

Balasubramanian

Vasudevan

2014

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…In computational analysis, usually finite element [20,21,30,31] or finite volume approach [32] is used. Some authors optimized thermal performance of hollow clay bricks [25] or hollow clay brick walls [33].…”

Section: Discussion and Comparison With The Available Experimental Datamentioning

confidence: 99%

Computational assessment of thermal performance of contemporary ceramic blocks with complex internal geometry in building envelopes

Kočí

Maděra

Jerman

et al. 2015

Energy and Buildings

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“…The objective of this study was to analyze the thermal behavior under steady-and transient-state conditions of a wall made up of lightweight concrete blocks covered with layers of insulating materials. The material used in the block manufacturing has been shown to possess thermal and structural advantages, including a longer product life cycle than other construction materials, low structural weight, excellent behavior at high temperatures, and good thermal insulation values due to its low thermal conductivity [19,20]. In this study, experimental tests were performed in a 1 m 2 instrumented hot-box climatic chamber, and the material was subjected to variable temperature and humidity conditions to obtain thermal inertia values according to the ISO standard rule [3].…”

Section: Introductionmentioning

confidence: 99%

Thermal Inertia Characterization of Multilayer Lightweight Walls: Numerical Analysis and Experimental Validation

et al. 2021

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The thermal inertia properties of construction elements have gained a great deal of importance in building design over the last few years. Many investigations have shown that this is the key factor to improve energy efficiency and obtain optimal comfort conditions in buildings. However, experimental tests are expensive and time consuming and the development of new products requires shorter analysis times. In this sense, the goal of this research is to analyze the thermal behavior of a wall made up of lightweight concrete blocks covered with layers of insulating materials in steady- and transient-state conditions. For this, numerical and experimental studies were done, taking outdoor temperature and relative humidity as a function of time into account. Furthermore, multi-criteria optimization based on the design of the experimental methodology is used to minimize errors in thermal material properties and to understand the main parameters that influence the numerical simulation of thermal inertia. Numerical Finite Element Models (FEM) will take conduction, convection and radiation phenomena in the recesses of lightweight concrete blocks into account, as well as the film conditions established in the UNE-EN ISO 6946 standard. Finally, the numerical ISO-13786 standard and the experimental results are compared in terms of wall thermal transmittance, thermal flux, and temperature evolution, as well as the dynamic thermal inertia parameters, showing a good agreement in some cases, allowing builders, architects, and engineers to develop new construction elements in a short time with the new proposed methodology.

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Hygrothermal study of lightweight concrete hollow bricks: A new proposed experimental–numerical method

Cited by 32 publications

References 29 publications

Optimization of activated tungsten inert gas welding of super duplex alloy 2507 based on experimental results

Optimization of activated tungsten inert gas welding of super duplex alloy 2507 based on experimental results

Computational assessment of thermal performance of contemporary ceramic blocks with complex internal geometry in building envelopes

Thermal Inertia Characterization of Multilayer Lightweight Walls: Numerical Analysis and Experimental Validation

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