Evaluation of thermal properties of insulation systems in pitched roofs

Zhukov, Aleksey; Ter-Zakaryan, Armen; Bobrova, Ekaterina; Bessonov, Igor; Medvedev, Andrey; Mukhametzyanov, Vitaly; Poserenin, Alexey

doi:10.1051/e3sconf/20199102047

Cited by 8 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Foamed plastics are also used to maintain the temperature regime in refrigeration units, in the construction of refrigerated warehouses and refrigerated vehicles [19,20]. When insulating cold setups and indoor sports facilities, the highest demands on the flatness of the surface and its quality led to the fact that it is considered the most cost-effective to perform anti-freeze protection using rigid foamed plastics, mainly XPS plates.…”

Section: Resultsmentioning

confidence: 99%

Insulation Sheath Materials for Cold Preservation

Zhukov

Ter-Zakaryan²,

Bobrova

et al. 2019

MSF

View full text Add to dashboard Cite

The article studies one of the aspects of the heat-insulating multifunctional shells use - the cold preservation. Such task is relevant for cold storages, workshops and warehouses, in which low temperatures constant maintenance is necessary, for sports facilities (for example, ice rinks and ski facilities). In all cases of application, the main goal is to achieve the economic efficiency, which is expressed in functional results (preservation of the material that breaks down at positive temperatures) and in energy savings. The use of polyethylene-based shells, which are connected by a lock joint, is substantiated. The experimental studies results of the material given in the article shows that in terms of resistance to low and alternating temperatures, operational durability, tensile strength and water absorption, this material and insulating shells based on it are quite applicable for insulation of cold-saving objects. The experience of using heat, vapor and moisture insulating shells based on polyethylene foam with the equipment of frameless and frame structures, sports facilities, as well as for the preservation of snow at ski resorts is also provided in the article.

show abstract

Section: Resultsmentioning

confidence: 99%

Insulation Sheath Materials for Cold Preservation

Zhukov

Ter-Zakaryan²,

Bobrova

et al. 2019

MSF

View full text Add to dashboard Cite

show abstract

“…In accordance with the technologies of OOO TEPOFOL, separate sheets are connected in a locking joint and welded with the hot air gun, subsequently forming a seamless insulating coating (patent of the Russian Federation, No. 2645190) [20,21]. Depending on the application conditions, the width of polyethylene foam rolls can reach up to 2 m, and the length of the material is made according to the customer's size.…”

Section: Introductionmentioning

confidence: 99%

Foam Polymers in Multifunctional Insulating Coatings

Ter-Zakaryan

Zhukov

et al. 2021

Polymers

View full text Add to dashboard Cite

The application of foamed polymers as one of the components of insulating coatings allows to solve the problems of energy saving and creation of optimal operating conditions for constructions. The systems of application of energy-efficient heat-insulating materials must consider both the particularities of the insulating materials and the functional orientation of the constructions. The implementation of the concept of seamless insulating coatings implies the achievement of thermal effect and reduction in air permeability both by means of the application of thermal insulation with low thermal conductivity and the minimization of junctions between separate elements of the insulating coating, which is achieved using elastic foamed polymers and, first of all, polyethylene foam. Construction of seamless insulating coatings creates practically impermeable heat, vapor, and water barriers along the outer perimeter of the insulated object. Multilayer products based on polyethylene foam represent a relatively new material—a fact that requires examination of their properties, as well as under various operating conditions, and development of a methodology for evaluation of the operational resistance of these materials in structures of different purposes, including cold conservation. The performed tests have shown that the compressive strength at 10% deformation is determined by the function of load application area and varies from 70 kPa during the test of cube samples of 10 × 10 × 10 in size to 260 kPa for areas exceeding 100 m2. The longitudinal tensile strength amounts to 80–92 kPa, and the strength of the weld seam is equal to 29–32 kPa. It has been established that the values of thermal conductivity of polyethylene foam with an average density of 18–20 kg/m3 amounts to 0.032–0.034 W/(m·K), diffusion moisture absorption is equal to 0.44 kg/m2 without a metallized coating and 0.37 kg/m2 with a metallized coating; water absorption after partial immersion in water for 24 h amounts to 0.013 kg/m2; water absorption by volume after complete water immersion for 28 days is equal to 0.96%. The material does not practically change its properties under conditions of long-term temperature alteration from −60 to +70 °C. The developed and implemented insulation systems for protective surfaces of framed construction objects, rubbhalls and frameless structures, floating floors, indoor ice rinks, and snow conservation systems are presented.

show abstract

“…The main feature of this object is the presence of the greenhouse. It is a complex structure with its own micro-climate and ecosystem, requiring the use of special technologies [10][11][12]. From the point of view of the thermal physics -it is necessary to protect the residential area from the influence of the factors of the agro-complex.…”

Section: Introductionmentioning

confidence: 99%

Dome House Insulation Systems

Shokodko

Bobrova²,

Zinoveva

et al. 2020

MSF

View full text Add to dashboard Cite

The article presents the results of studying the possibility of using the insulation systems in the structures of rural buildings of various functional purposes, including the creating the multifunctional objects. A vegetarium dome house is considered, which unites a living area and greenhouses. The planning solution of the multipurpose domed house involves the formation of the effective insulation systems for the interior walls, protecting the living space of the interior from the heat-moisture and phytoaggressive features of the greenhouse exterior. A comparative analysis of possible heat-, water-and vapor-insulating materials for an insulating membrane has established the expedience of using the rolled foam-polyethylene fixed by an adhesive method on the external surfaces of the internal walls. Experimental studies have established that polyethylene foam with an average density of 18–20 kg/m3 has the following characteristics: the diffusion moisture absorption without any coating is 0,44 kg/m2; the diffusion moisture absorption with a metalized coating is 0,37 kg/m2; water absorption upon partial immersion in water for 24 hours is 0,013 kg/m2; volume water absorption with full immersion in water for 28 days is 0,96%. The nature of the destruction of the contact surface “foam polyethylene-metal” is cohesive in the adhesive layer, and the destructive stress is 12–17 kPa. A special feature of the polyethylene foam is the possibility of creating a jointless coating with minimal diffusion characteristics and with minimized cold bridges. The jointless cover is formed by combining the roll material into a lock, followed by hot air welding.

show abstract

Evaluation of thermal properties of insulation systems in pitched roofs

Cited by 8 publications

References 12 publications

Insulation Sheath Materials for Cold Preservation

Insulation Sheath Materials for Cold Preservation

Foam Polymers in Multifunctional Insulating Coatings

Dome House Insulation Systems

Contact Info

Product

Resources

About