Ecological and energy efficiency of insulating systems

Zhukov, Aleksey; Medvedev, Andrey; Poserenin, Alexey; Efimov, Boris

doi:10.1051/e3sconf/201913503070

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…6). Proper insulation and selection of heat-insulating material that meets all the requirements and objectives minimize heating costs, ensure efficient usage of energy resources and regulate the indoor environment, maintaining the optimal temperature and humidity conditions inside the storage facility [16][17][18][19]. The environmental friendliness and harmlessness of the insulator becomes an important aspect of choice for the storage facilities where long-term storing of agricultural products is foreseen.…”

Section: Discussionmentioning

confidence: 99%

Construction and insulation of agricultural buildings and structures

Efimov

Rubtsov

Bessonov³

et al. 2020

E3S Web Conf.

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The article covers different application aspects of the products made of polyethylene foam within the scope of insulation systems of framed and frameless constructions used in the quality of storage premises, logistic objects, agricultural storage facilities and livestock facilities as well as framed residential buildings. Agricultural storage facilities, livestock facilities, covered parking areas for agricultural machinery and some types of storage premises represent the agricultural construction facilities which require the established protection systems against excessive heat losses as well as monitoring of the state of the internal environment - its temperature and humidity. These structures are built based on one of three schemes: frameless type, framed type with a rigid coating and framed type with a tent coating. The insulation of buildings constructed before 2010 is predominantly characterized by usage of mineral wool plates (with a protective facade covering) or sandwich panels. The main problem of suchlike coverings is the impossibility of creating an insulating coating without joints, seams or gapless junctions to the base. Mineral wool plates, in case of destruction of the waterproof coating, contact with water and firstly lose their thermal and physical properties, and then – come to the destruction themselves. Sandwich panels are more resistant to weather impacts, but create a coating with huge quantity of cold bridges and paths of convective air transfer through gaps or openings.

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Section: Discussionmentioning

confidence: 99%

Construction and insulation of agricultural buildings and structures

Efimov

Rubtsov

Bessonov³

et al. 2020

E3S Web Conf.

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“…Zhukov et al [20] presented various techniques for computing polyethene foam insulation systems. The researchers assessed energy efficiency by measuring the environmental impact of insulating systems.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Thickness of Multilayer Thermal Insulation on Different Pipelines for Minimizing Overall Cost-Associated Heat Loss

Alrasheed

2024

Processes

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Optimizing the multilayer thermal insulation of pipelines transporting liquids and gases at higher than ambient temperatures is crucial for heat energy conservation and cost optimization. This study utilizes a multi-objective genetic algorithm to optimize the multilayer thermal insulation thickness around a pipe carrying fluid to minimize heat loss and associated costs. The model adopted mathematical associations between design variables and the overall installation cost of layers over a pipe from the available literature. The proposed model considered one or more insulation layers of rock wool and calcium silicate to oil pipelines containing steam, furfural, reduced crude or 300-distillate oil. All calculations considered fixed-charge rates as a fraction of 1 or 0.15. The results were compared with standard values and those predicted by other researchers in the literature. For the steam line, the standard insulation thickness was 50 mm, jumping to 327 mm for rock wool and 232 mm for calcium silicate. However, it decreased to 38 mm for double-layer calcium silicate and 138 mm for double-layer rock wool. For furfural, the insulation thickness was 40 mm, which rose to 159 mm for rock wool and 112 mm for calcium silicate. In general, for all four cases, the results show that using normal insulation thickness is inadequate and not economical. For example, for 300-distillate oil, the present practice puts the cost function at 54 USD/m, which drops to 20 USD/m for rock wool and 24 USD/m each for single-layer silicate and double-layer insulation. This amounts to almost 60% cost savings. Similar trends are observed for the other three cases. This model can provide up to 60% savings in cost and a 92% reduction in heat loss at optimum insulation thickness compared to other models.

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