Super Insulation Materials—An Application to Historical Buildings

Vajó, Brigitta; Lakatos, Ákos

doi:10.3390/buildings11110525

Cited by 5 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this way, after applying the linear and point heat transfer coefficients, the imposed R' values, respectively U' values, are met. A significant increase in the unidirectional thermal resistance value can be reached by thicker thermal insulation or by using super insulating materials, i.e., vacuum insulation panels and aerogel insulation [45][46][47], preponderantly recommended for LSF buildings.…”

Section: Modelled Casesmentioning

confidence: 99%

Thermo-Energy Performance of Lightweight Steel Framed Constructions: A Case Study

et al. 2022

View full text Add to dashboard Cite

The building sector continues to play an essential role in reducing worldwide energy consumption. The reduced consumption is accompanied by stricter regulation for the thermotechnical design of the building envelope. The redefined nearly Zero Energy Building levels that will come into force for each member state will pressure designers to rethink the constructive details so that mandatory levels can be reached, without increasing the construction costs over an optimum level but at the same time reducing greenhouse gas emissions. The paper aims to illustrate the main conclusions obtained in assessing the thermo-energy performance of a steel-framed building representing a holistically designed modular laboratory located in a moderate continental temperate climate, characteristic of the south-eastern part of the Pannonian Depression with some sub-Mediterranean influences. An extensive numerical simulation of the main junctions was performed. The thermal performance was established in terms of the main parameters, the adjusted thermal resistances and global thermal insulation coefficient. Further on, the energy consumption for heating was established, and the associated energy rating was in compliance with the Romanian regulations. A parametric study was done to illustrate the energy performance of the investigated case in the five representative climatic zones from Romania. An important conclusion of the research indicates that an emphasis must be placed on the thermotechnical design of Light Steel Framed solutions against increased thermal bridge areas caused by the steel’s high thermal conductivity for all building components to reach nZEB levels. Nevertheless, the results indicate an exemplary behaviour compared to classical solutions, but at the same time, the need for an iterative redesign so that all thermo-energy performance indicators are achieved.

show abstract

Section: Modelled Casesmentioning

confidence: 99%

Thermo-Energy Performance of Lightweight Steel Framed Constructions: A Case Study

et al. 2022

View full text Add to dashboard Cite

show abstract

“…All those conventional insulation materials are economically affordable, but the insulation performance is generally achieved with thicker materials [14]. On the other hand, silica aerogel insulation materials can achieve better performance levels at quite reduced thicknesses [14,15] but are not yet affordable materials [14,16]. However, the aerogel thermal insulation market is expected to grow at a higher pace, driven by the increasing need for efficient insulation materials to foster energy savings [12].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Thermoacoustic Insulation Study of Silica Aerogels Reinforced with Reclaimed Textile Fibres: Cotton, Polyester and Wool

Linhares

Carneiro

Amorim

et al. 2023

Gels

View full text Add to dashboard Cite

Silica aerogels are highly porous materials with exceptional thermal insulation performance. They become even more attractive if combined thermal and acoustic insulation is achieved. Silica aerogel composites reinforced with fibres are an ingenious way to surpass the fragility stemmed from the aerogel’s intrinsic porosity, and textile fibres are good sound absorption materials. Reclaimed fibres are a relatively low-cost feedstock and were obtained in this work exclusively through mechanical processes from textile wastes, thus promoting the concept of circular economy, namely for cotton, polyester and wool fibres. These reclaimed fibres were used as reinforcement matrices for silica aerogel composites obtained from sol–gel transformation of tetraethyl orthosilicate and isobutyltriethoxysilane/or vinyltrimethoxysilane precursors and dried at ambient pressure after silylation. Silica aerogel composites reinforced with reclaimed cotton fibres had the best sound absorption coefficient (a peak value of 0.89), while the polyester-reinforced composite exhibited the lowest thermal conductivity (k = ~24 mW m−1 K−1, Hot Disk). The better combined results on thermal and acoustic insulation were achieved by the wool-reinforced composites. The thermal conductivity values were less than 27 mW m−1 K−1, and the sound absorption coefficient achieved a peak value of 0.85. Therefore, the aerogel composites developed here can be selected for thermal or/and acoustic barriers by choosing a suitable type of fibre. Their design and preparation protocol followed environmental-friendly and cost-effective approaches.

show abstract

“…However, the first application of these super thermal insulating materials in the construction industry was only at the end of the 20th century in the USA, in 1999 [4]. Based on the literature search conducted in the field of vacuum insulation materials in the construction industry, these materials were mostly applied in facades [5,6,7,8], wall insulation [9], then as insulation of pitched and flat roofs [10], structural facade panels [11,12], glazed facades and others [13,14,15].…”

Section: Introductionmentioning

confidence: 99%

Study of the possibility of using vacuum insulation panels in building construction in comparison with conventional insulators

Zach,

Peterková,

Novák

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The use of super insulating materials in the construction industry, including vacuum insulation, closely corresponds to the ever-increasing requirements for the construction of low-energy and passive buildings. Their indisputable advantage is their excellent thermal insulation properties at low thickness compared to conventional thermal insulation materials. However, there are also many risks associated with the experience and practice of the personnel involved in the application of these materials to structures. The paper focuses on the overall comparison of the possible use of vacuum insulation panels in modern building structures in terms of possible design solutions and achieved properties. The paper presents the results of selected case studies of the optimal use of vacuum insulation panels (VIP) in the construction industry, which are focused on different areas of building structures, specifically on the detail of the transition of the terrace and the adjacent floor, as well as on the solution of the filling of openings - doors. Based on the results of the studies carried out, it can be concluded that, provided that all procedures for maintaining the VIP properties are followed in the implementation of these materials in structures, vacuum insulations represent a more suitable solution for structural details in selected details (less thickness and comparable thermal insulation properties compared to conventional insulations).

show abstract

Super Insulation Materials—An Application to Historical Buildings

Cited by 5 publications

References 30 publications

Thermo-Energy Performance of Lightweight Steel Framed Constructions: A Case Study

Thermo-Energy Performance of Lightweight Steel Framed Constructions: A Case Study

A Comparative Thermoacoustic Insulation Study of Silica Aerogels Reinforced with Reclaimed Textile Fibres: Cotton, Polyester and Wool

Study of the possibility of using vacuum insulation panels in building construction in comparison with conventional insulators

Contact Info

Product

Resources

About