Air Gap between Protective Screen and Surface of Reinforced Concrete Cooling Tower

Barabanshikov, Yury G.; Belyaeva, Svetlana; Antonova, Maria; Zapoev, Mihail

doi:10.4028/www.scientific.net/amr.1044-1045.457

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…Further, calculations of building structures were performed, and the appropriate reinforcement selection was made, the strength of the anchor group was checked, due to which the hinged sub-screen system is attached to the body of the reinforced concrete tower, the corresponding calculations were performed in the LIRA-SAPR PC. Loads and impacts were taken in accordance with the current regulatory documentation [28][29][30][31][32][33][34][35][36][37][38][39][40], the scheme with the thermal and moisture protection screen did not take into account the temperature and humidity difference during the winter period of operation of the cooling tower. Considering the results obtained, a technical and economic assessment of the variants of the cooling tower was carried out.…”

Section: Methodsmentioning

confidence: 99%

Technical and economic assessment of the possibility of using a thermal and moisture protection screen to increase the resistance of the reinforced concrete cooling tower shell to operational conditions

Belov,

Galieva,

Verkhovskiy

2024

BIO Web Conf.

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During the operation of chimney-type evaporative cooling towers which are made of monolithic reinforced concrete, the shell is exposed to various aggressive environmental influences and the carried-away part of the recycled process water leading to its premature destruction. This article illustrates a method of protecting the shell tower of a reinforced concrete cooling tower from the aggressive effects of the operating environment using a thermal and moisture protection screen design – a ventilated curtain wall with a cladding of fiberglass sheets. By the finite element method, using the ANSYS PC, a calculated analysis of temperature values and air velocity in the air gap was performed, resulting in the geometry of the air gap. To assess the overall change in the percentage of reinforcement, the corresponding strength calculations of the cooling tower shell were made with and without a thermal and moisture protection screen. Subsequently, the corresponding technical and economic analysis of the proposed design option was carried out. As a result the use of thermal moisture protection screen allows significantly redact capital costs during the construction of new cooling towers and decrease expenses for periodic major repairs in the operational cycle, thereby increasing the durability of the cooling tower.

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Section: Methodsmentioning

confidence: 99%

Technical and economic assessment of the possibility of using a thermal and moisture protection screen to increase the resistance of the reinforced concrete cooling tower shell to operational conditions

Belov,

Galieva,

Verkhovskiy

2024

BIO Web Conf.

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“…Constructional materials are a basis of the construction. Understanding of its characteristics and correct using are pledge of reliability and efficiency of the constructions [1]. One of the main constructional materials, that using in the civil and industrial engineering and etc.…”

Section: Introductionmentioning

confidence: 99%

Features of Using the Russian State Standards and the Eurocodes for the Protection and Repair of Concrete Structures

Khodakov

Tochenyy

Belyaeva

et al. 2014

AMM

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The corrosion is one of the main deterioration reasons of structural concrete and reinforced concrete. The corrosion is a consequence of unsatisfactory construction maintenances, poor diagnosis of defects' causes and no fracture control of concrete structures and also incorrect repair specifications and incorrect products and techniques selecting for the repair inevitably lead to the concrete structures' deterioration. The most countries are taking care to developing of the national standards for using as manuals for the protection and repair of concrete structures against corrosion to avoid these negative factors. The article authors are offering the comparative analysis of the harmonized Russian state standards and Eurocodes for the protection and repair of concrete structures against corrosion.

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“…According to [13], thermal stability is one of the most important topics in the building design, as it measures how quickly a material gains or loses heat to the environment. The thermal stability is property of the thermal conductivity coefficient, density of the material, specific heat and heat transfer resistance [14]. Consequently a thermal stability calculation may be summarized as estimation of an internal surface temperature swing or as measurement of damping of temperature oscillations in building structures.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Thermal Stability of Dry High-strength Concrete and Wet High-strength Concrete

et al. 2018

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Abstract. High-strength concrete is a modern material, which occupies it`s own niche on the construction material market. It is applicable in a largescale high-rise construction, particularly an underground construction is a frequently used solution for a space saving. Usually underground structure is related to a wet usage environment. Though not all properties of the highstrength concrete are investigated to the full extent. Under adverse climatic conditions of the Russian Federation one of the most important properties for constructional materials is a thermal capacity. Therefore, the main purpose of the paper is to compare a thermal capacity of the high-strength concrete in humid conditions and a thermal capacity of the high-strength concrete in dry operational condition. During the study dependency between thermal capacity and design wall thickness and ambient humidity has to be proven with two experiments. As a result the theoretical relation between thermal capacity characteristic -thermal inertia and wall thickness and ambient humidity was confirmed by the experimental data. The thermal capacity of a building is in direct ratio to the construction thickness. It follows from the experiments and calculations that wet high-strength concrete has less thermal stability.

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Air Gap between Protective Screen and Surface of Reinforced Concrete Cooling Tower

Cited by 4 publications

References 6 publications

Technical and economic assessment of the possibility of using a thermal and moisture protection screen to increase the resistance of the reinforced concrete cooling tower shell to operational conditions

Technical and economic assessment of the possibility of using a thermal and moisture protection screen to increase the resistance of the reinforced concrete cooling tower shell to operational conditions

Features of Using the Russian State Standards and the Eurocodes for the Protection and Repair of Concrete Structures

Comparison of Thermal Stability of Dry High-strength Concrete and Wet High-strength Concrete

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