Optimization of glass fiber based core materials for vacuum insulation panels with laminated aluminum foils as envelopes

Di, Xiaobo; Gao, Yimin; Bao, Chonggao; Hu, Yunfeng; Xie, Zhen'gang

doi:10.1016/j.vacuum.2013.04.005

Cited by 60 publications

(32 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The thermal resistance of any building material layer is the ratio of its thickness to thermal conductivity. Fuel Natural gas HDD (°Cdays) [26] 1624 Fuel cost , , (£m -3 ) [25] 0.196 Heating value, , (MJm -3 ) 39.5 Initial heating system efficiency, , (%) 90 Annual discount rate, , (%) 4…”

Section: Payback Period Calculationmentioning

confidence: 99%

“…For the U-value calculations used by this research, design thermal conductivity values of 0.008 Wm -1 K -1 , 0.007 Wm -1 K -1 and 0.035 Wm -1 K -1 were used for FS VIP, GF VIP and EPS respectively. For FS VIPs and GF VIPs the annual increase in thermal conductivity was assumed as 0.0001 Wm −1 K −1 a −1 [31] and 0.0018 Wm −1 K −1 a −1 respectively [26].…”

Section: Payback Period Calculationmentioning

confidence: 99%

See 1 more Smart Citation

Energy and economic analysis of Vacuum Insulation Panels (VIPs) used in non-domestic buildings

et al. 2017

View full text Add to dashboard Cite

The potential savings in space heating energy from the installation of Fumed Silica (FS) and Glass Fibre (GF) Vacuum Insulation Panels (VIPs) were compared to conventional expanded polystyrene (EPS) insulation for three different non-domestic buildings situated in London (UK). A discounted payback period analysis was used to determine the time taken for the capital cost of installing the insulation to be recovered. VIP materials were ranked using cost and density indexes. The methodology of the Payback analysis carried out considered the time dependency of VIP thermal performance, fuel prices and rental income from buildings. These calculations show that VIP insulation reduced the annual space heating energy demand and carbon dioxide (CO2) emissions by approximately 10.2%, 41.3% and 26.7% for a six storey office building, a two floor retail unit building and a four storey office building respectively. FS VIPs had the shortest payback period among the insulation materials studied, ranging from 2.5 years to 17 years, depending upon the rental income of the building. For GF VIPs the calculated payback period was considerably longer and in the case of the typical 4 storey office building studied its cost could not be recovered over the life time of the building. For EPS insulation the calculated payback period was longer than its useful life time for all three buildings. FS VIPs were found to be economically viable for installation onto non-domestic buildings in high rental value locations assuming a lifespan of up to 60 years.

show abstract

Section: Payback Period Calculationmentioning

confidence: 99%

Section: Payback Period Calculationmentioning

confidence: 99%

Energy and economic analysis of Vacuum Insulation Panels (VIPs) used in non-domestic buildings

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In a review by Baetens et al [22], the properties of VIP core should have optimum thermal resistance. Several materials, such as polycarbonates, ultrafine glass fibers, phenolic form and fumed silica, are being studied as core materials of VIPs [24,30,31]. Among those materials, the present study focusses on fumed silica as a core material for VIPs.…”

Section: Fumed Silica Vipsmentioning

confidence: 99%

A Comparative Study of Energy Performance of Fumed Silica Vacuum Insulation Panels in an Apartment Building

2017

View full text Add to dashboard Cite

Abstract:Building insulation materials has a significant impact on building energy consumptions. However, conventional materials are easily flammable and can cause fire disasters in buildings. Therefore, it is important to select appropriate insulation materials for building energy efficiency and safety and Vacuum Insulation Panels (VIPs) are increasingly applied to building insulation. Considering this, the present study investigates energy performance of VIPs with design alternatives, such as window systems, infiltration rates, etc., by using energy simulation. Among various VIPs, fumes silica VIPs were chosen. In addition, eight combinations were compared to find the best energy efficient design conditions. The results of the present study showed that building energy performance can be improved with an appropriate combination of design options including fumed silica VIPs.

show abstract

“…Several different materials are being tested for use as core materials in VIPs, such as fibrepowder composites (Mukhopadhyaya et al [40]), polycarbonates (Kwon et al [36]), phenolic foam (Kim et al [34]) and ultrafine glass fibres (Di et al [15]). Different core materials have different advantages and drawbacks.…”

Section: The Core 221 Cores In Generalmentioning

confidence: 99%

“…Because of its high thermal stability, Araki et al [2] have investigated the use of glass fibre cored VIPs for high-temperature applications. The core material itself is relatively inexpensive, but Di et al [15] concluded that the lifetime expectancy for a glass fibre cored vacuum insulation panel is about 15 years. This is far too low for glass fibre VIP cores to be considered as a choice for building applications.…”

Section: Glass Fibrementioning

confidence: 99%

Vacuum insulation panel products: A state-of-the-art review and future research pathways

2014

View full text Add to dashboard Cite

Vacuum insulation panels (VIP) are regarded as one of the most upcoming high performance thermal insulation solutions. At delivery, thermal conductivity for a VIP can be as low as 0.002-0.004 W/(mK) depending on the core material. VIPs enable highly insulated solutions, and a measure to reduce the energy usage in both hot-water applications, cold applications and for the construction industry in general. This study gives a state-of-the-art review of VIP products found available on the market today, and explore the future research opportunities for these products.VIPs have been utilized with success for applications such as freezers and thermal packaging, and during the last decade they have also been used for building applications in increasing numbers, where one of the main driving forces is the increased focus on e.g. passive houses, zero energy buildings and zero emission buildings. Hence, VIPs are now in the early market stages as a building product. Implementation of VIPs in various building constructions have given an increased interest in the possibilities of this product, both in new and refurbished constructions. Even though there is not enough data to conclude the effect over a lifetime of a building yet, the immediate result in decreased energy usage can be seen. However, the problem of guaranteeing a set lifetime expectancy, along with high costs, are some of the major reasons why VIPs are met with scepticism in the building industry. Aiming to give better quality assurance for the users, make further advances in envelope technologies and the development of core materials, along with a further cost reduction is crucial for VIPs to become a competing thermal insulation solution for buildings.

show abstract

Optimization of glass fiber based core materials for vacuum insulation panels with laminated aluminum foils as envelopes

Cited by 60 publications

References 19 publications

Energy and economic analysis of Vacuum Insulation Panels (VIPs) used in non-domestic buildings

Energy and economic analysis of Vacuum Insulation Panels (VIPs) used in non-domestic buildings

A Comparative Study of Energy Performance of Fumed Silica Vacuum Insulation Panels in an Apartment Building

Vacuum insulation panel products: A state-of-the-art review and future research pathways

Contact Info

Product

Resources

About