Energy saving technology of wall insulation of harbor building based on energy cost analysis

Wang, Xiangning; Lin, Qing; Li, Jing

doi:10.2298/tsci2106003w

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…As the mining depth increases, the difficulty of mining also increases. Deep coal resources will encounter problems such as high ground stress, high ground temperature and high osmotic pressure, which will cause hidden dangers to safety production [3][4][5]. Among them, the effect of high ground temperature mainly causes mine heat damage, which is divided into two categories: high temperature heat damage and high humidity heat damage.…”

Section: Introductionmentioning

confidence: 99%

Variable angle of insulated shotcrete under different loading rates and temperature and humidity cycles- shear test and analysis

Tong,

Shen,

Pang

et al. 2024

PLoS ONE

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The new thermal insulating shotcrete is of great significance for the management of thermal damage in deep mines, and its own strength has a greater impact on the roadway insulation and safe production, so it is very necessary to study the shear strength of the new thermal insulating shotcrete under the influence of the deep hot and humid environment and the stress of mining. For the heat-insulating shotcrete, firstly, we carried out the concrete variable angle shear test under different loading rates, which concluded that the shear rate and peak shear stress showed a trend of increasing and then decreasing; as the angle increases, the different rates have a greater impact on the peak shear stress of the specimen. Secondly, the concrete variable angle shear test was carried out under the temperature and humidity cycle, which revealed that the shear strength of thermal insulated shotcrete increased firstly and then decreased with the increase of temperature at the same number of cycles. Finally, the empirical equations between the cohesive force c, the angle of internal friction ϕ and the number of warm and wet cycles n and the temperature of warm and wet cycles T are fitted with the MATLAB software respectively, and the research results provide technical references for the management of geothermal temperature in deep well projects.

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Section: Introductionmentioning

confidence: 99%

Variable angle of insulated shotcrete under different loading rates and temperature and humidity cycles- shear test and analysis

Tong,

Shen,

Pang

et al. 2024

PLoS ONE

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“…With the advancement of building energy efficiency, thermal insulation materials have gradually become the focus of attention in order to realize the strategic goal of sustainable development in China [9,10]. Wang et al [11] used two insulation materials and three insulation positions to analyze the thermal performance of a wall. It was found that increasing the thickness of the insulation layer was a favorable method to reduce heat loss from the wall.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Simulation Analysis of Influencing Factors of Energy Consumption of Public Building Envelope in Central China

Yue,

Lu,

Yan

et al. 2023

Sustainability

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It difficult for buildings in cold regions to reasonably meet ultra-low energy consumption requirements. To explore the influencing factors of building energy consumption in this type of climatic region, this paper takes a typical public building in Zhengzhou, China as a case study to dynamically simulate an entire building. The influence of the window glass, window-to-wall ratio (WWR), thermal insulation material thickness and other factors on building energy consumption is considered. The sensitivity of envelope design factors to energy consumption is analyzed by the orthogonal test. The results indicate that the effect of changing the technical parameters of the external envelope structure on building energy efficiency is significant. Moreover, range analysis is used to determine the primary and secondary factors with regard to their influence on the energy consumption of the building. The WWR, the type of external window glass and the thickness of the external wall insulation layer should be considered first in energy-saving design; the energy-saving potential of the roof insulation thickness is not as significant as these factors. The results of the study can provide a reference for the energy-saving design of public buildings in Central China.

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“…The development of urban construction promotes rapid expansion of advanced building and materials industry [1]. The structural and thermal properties of multilayer building components play a key role not only in hygrothermal and acoustic comfort but also in energy performance of building's envelope [2].…”

Section: Introductionmentioning

confidence: 99%

Verification and validation of an advanced guardedhot plate for determination of thermal conductivity

Mirkovic-Marjanovic¹,

Kijanovic²,

Ilić³

et al. 2022

THERM SCI

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The Guarded hot plate method (GHP) is a widely used technique to measure thermal conductivity of thermal insulation specimens in steady-state conditions. In this paper, an advance of GHP has been developed in the Laboratory for Thermal technique and fire protection in Institute IMS. The innovative GHP has been applied for measuring thermal conductivity using additional heat flux meters. The design of this GHP is similar to the design of the plate for GHP apparatus; however, it has different design: smaller width of thermal barrier, which is filled with insulation glue. Heaters inside hot and guard plates are built from wire for thermocouples, which is a unique type of heater. Geometry of heater has been optimized inside plates to achieve uniform temperature distribution along the specimen surface. Temperature uniformity of guarded hot plate and energy balance were experimentally determined. The verification and validation results of improved GHP have been shown. The test method was validated comparing test results of thermal conductivity with results of the round-robin test. Four national companies participated in the round-robin comparison on thermal conductivity measurement by guarded hot plate method. The measurement was performed on the same specimen of thermal insulation material (expanded polystyrene) according to SRPS EN 12667 at temperatures ranging between 10?C-40?C. The measured thermal conductivity of all participants in the round-robin test was input data for statistical processing according to SRPS ISO 5725-2 and ISO 13528. To evaluate the performance of the participants, the ?z? score has been used. Measurements were conducted successively for all participants. Since 2020, the Accreditation Body of Serbia also approved this test method.

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Energy saving technology of wall insulation of harbor building based on energy cost analysis

Cited by 5 publications

References 8 publications

Variable angle of insulated shotcrete under different loading rates and temperature and humidity cycles- shear test and analysis

Variable angle of insulated shotcrete under different loading rates and temperature and humidity cycles- shear test and analysis

Dynamic Simulation Analysis of Influencing Factors of Energy Consumption of Public Building Envelope in Central China

Verification and validation of an advanced guardedhot plate for determination of thermal conductivity

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