Evaluation of heat transporting losses due to changes of insulation properties during operation

Сайфуллин, Э. Р.; Vankov, Yuri; Bazukova, E. R.; Maryashev, A. V.

doi:10.1088/1742-6596/1058/1/012061

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…A sample was considered dried to constant weight if the loss of its weight after another drying for 0.5 h did not exceed 0.1%. The received signal was processed using the developed software in the LabVIEW software package [29].…”

Section: Methodsmentioning

confidence: 99%

Experimental Assessment of the Thermal Conductivity of Basalt Fibres at High Temperatures

et al. 2022

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This paper investigates fibrous thermal insulation materials of various densities to assess the change in their thermophysical properties at high temperatures. The thermal conductivity of fibrous thermal insulation materials is discussed as a function of the temperature in the range from 50 °C to 500 °C. It is shown that the thermal insulating properties depend not only on the physical properties of the material (e.g., density or diameter of fibres), but also on the geometric parameters of the structure and on the orientation of the fibres. The influence of high temperatures on the mass change of fibrous materials associated with the burnout of synthetic binders is shown. These features should be taken into account during the design of thermal insulation operating at high temperatures to provide the optimal selection of the material and to guarantee the stability of their thermal properties.

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Section: Methodsmentioning

confidence: 99%

Experimental Assessment of the Thermal Conductivity of Basalt Fibres at High Temperatures

et al. 2022

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“…Emerging breakthroughs reduce the reliability of the entire heat supply system, worsen the quality of the supplied coolant, and lead to an economic rise in the cost of maintenance of heat networks by operating organizations. [1][2][3] One example of the influence of design and construction and installation works quality on the functioning of heat networks is an accident at a transferred area in the Kukkovka village, Republic of Karelia, when about 50 thousand people were left without hot water. During the hydraulic tests, a rupture occurred on the feed pipe with a diameter of 500 mm.…”

Section: Introductionmentioning

confidence: 99%

The influence of changes in the project on the reliability of heat power systems during construction and installation works

Gorbunova¹,

Politova

Ziganshin

et al. 2019

E3S Web Conf.

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However, during the construction and reconstruction of existing heat networks, cases that lead to unstable operation of newly laid or replaced areas arise. An important task is to minimize the reasons that can cause damage to replaced areas. Factors that negatively affect the reliability include: laying pipelines without design documentation, non-compliance of the regulatory requirements for their laying by installation organizations. The assumptions of design engineers developing the project and installers laying the heating main can lead to negative consequences, including a decrease in the reliability of the facilities functioning. Physical deterioration, coupled with the above factors, leads to a large number of failures of heat networks. Breakthroughs reduce the reliability of the entire heat supply system, worsen the quality of the supplied coolant and lead to an increase in the cost of maintenance of heat networks by operating organizations. The paper considers the influence of changes in the project during the construction and installation works on the reliability of the heat supply system.

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Destruction of thermal insulation and effectiveness of the thermal energy transfer system

et al. 2019

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The work is devoted to improving the efficiency of the system of thermal energy transportation. The results of determining the thermophysical properties, such as the coefficient of thermal conductivity, water absorption, vapor permeability, the percentage of structural changes in the fibers during heating and exposure to vibration, basalt super thin fiber and other thermal insulation materials are presented. The results of thermal imaging testing control of basalt super-thin fiber mats are presented. The effect of the degree of thermal insulation aging on the increase in the heat flow density is shown.

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Evaluation of heat transporting losses due to changes of insulation properties during operation

Cited by 3 publications

References 1 publication

Experimental Assessment of the Thermal Conductivity of Basalt Fibres at High Temperatures

Experimental Assessment of the Thermal Conductivity of Basalt Fibres at High Temperatures

The influence of changes in the project on the reliability of heat power systems during construction and installation works

Destruction of thermal insulation and effectiveness of the thermal energy transfer system

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