Energy Efficiency of Technical Thermal Insulation

2019 ◽  
Author(s):  
M.V. Shitikova ◽  
I.I. Popov ◽  
Bobrova E. Yu ◽  
A.D. Zhukov
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation

scholarly journals THE INFLUENCE OF THE METHOD OF LAYING PIPELINES ON THE ENERGY EFFICIENCY OF THE HEATING NETWORK

2019 ◽  
Vol 10 (2) ◽  
pp. 59-66
Author(s):  
E. A Biryuzova ◽  
A. S Glukhanov
Keyword(s):  
Energy Efficiency ◽  
Heat Loss ◽  
Thermal Insulation ◽  
Thermal Energy ◽  
Great Influence ◽  
Temperature Fields ◽  
Insulation Material ◽  
Design Work ◽  
Heat Networks ◽  
Insulation Thickness

Through pipelines of heat networks, due to their large length, a large amount of thermal energy is lost. Identification of technical solutions related to improving the energy efficiency of heating networks is an urgent task at present. The article is devoted to the consideration of options for laying pipelines of heat networks during design work. In the conducted studies, two main methods of underground laying of pipelines of heat networks with the choice of the most energy-efficient, with minimal losses of thermal energy are considered. Channel and channelless laying methods are investigated with the same design features and technological conditions of operation of pipelines of heat networks using the same thermal insulation material. For each option, the required thickness of the thermal insulation is determined by the normalized density of the heat flow, thermal calculations are performed to determine the heat loss and the value of the temperature fields generated around the operating pipelines of the heat networks. The obtained values of the thermal insulation thickness in the channel method of laying pipelines are 30-50 % lower than those in channelless laying. The heat loss values, according to the results of the heat calculation for the options under consideration, in the channel method of laying are reduced by 47-65 %. The temperature fields formed around the pipelines of thermal networks with channelless laying significantly exceed the natural value of the soil temperature at the depth of the pipeline. What has a great influence on the determination of the distance to adjacent pipelines and other utilities, laid underground, in the zone of the thermal network. A comparative analysis of the results obtained makes it possible to single out the choice of the method of laying the pipeline into a group of measures aimed at energy saving and increasing energy efficiency in heating systems.

Ensuring energy efficiency of refrigeration piping

2021 ◽  
pp. 45-52
Author(s):  
G.I. Petrov ◽  
V.N. Kornienko ◽  
A.G. Donetskikh
Keyword(s):  
Energy Efficiency ◽  
Comparative Analysis ◽  
Thermal Insulation ◽  
Raw Materials ◽  
Thermal Characteristics ◽  
Operational Reliability ◽  
Insulating Materials ◽  
Insulation Materials ◽  
Synthetic Rubber ◽  
Materials Used

Improving energy efficiency and energy saving in refrigeration technology depends largely on the use of modern thermal insulation materials in the thermal insulation structures of refrigeration pipelines. The article presents a comparative analysis of the thermal characteristics and operational properties of heat-insulating materials used in refrigeration. The features of RUFLEX thermal insulation materials based on foamed synthetic rubber produced from domestic raw materials and their compliance with the requirements of energy efficiency, durability, operational reliability and safety are considered.

Regeneration of Precast Panel Buildings in Terms of its Effect on Daylight

2013 ◽  
Vol 649 ◽  
pp. 113-116
Author(s):  
Daniela Bošová ◽  
Lenka Janečková
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Negative Effects ◽  
Performance Requirements ◽  
Ecological Performance ◽  
Interior Environment

The regeneration of precast panel buildings is very often connected with a complete reconstruction of the existing external skin. This involves, in particular, the replacement of window openings, the installation of additional contact thermal insulation or modifications of projecting structures, including loggia glazing and, last but not least, changes in the colour shading of the surface façade layer. These interventions undoubtedly contribute to improved energy efficiency of the building, but secondary negative effects on the interior environment in terms of the daylight level must also be considered. As the aim is to modernise such buildings to reduce their energy, economic and ecological performance requirements, the maximum utilisation of daylight in the interior is one of non-negligible aspects.

Durability Research of Thermal Insulation Glazed Hollow Bead Concrete

2013 ◽  
Vol 639-640 ◽  
pp. 350-353 ◽  
Author(s):  
Xiao Hong Zheng ◽  
Zhu Li ◽  
Yuan Zhen Liu ◽  
Shang Song Qin
Keyword(s):  
Experimental Study ◽  
Energy Efficiency ◽  
Theoretical Analysis ◽  
Thermal Insulation ◽  
Raw Materials ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Insulation Material ◽  
Mixing Proportion ◽  
Good Workability

The durability of thermal insulation glazed hollow bead concrete, which is a kind of structure self-thermal insulation material produced in the background of building energy efficiency, has been systematically researched in order to make it with a good workability. Theoretical analysis and experimental study have been made from the raw materials and construction mixing proportion in the basis of the analysis to the influencing factors of its durability so as to can improve its durability.

Thermal Bridges Minimizing through Typical Details in Low Energy Designing

2014 ◽  
Vol 899 ◽  
pp. 62-65 ◽  
Author(s):  
Rastislav Ingeli ◽  
Boris Vavrovič ◽  
Miroslav Čekon
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Energy Demand ◽  
Building Energy ◽  
Building Envelope ◽  
Low Energy ◽  
Building Energy Efficiency ◽  
Low Energy Buildings ◽  
Thermal Bridges ◽  
The Impact

Energy demand reduction in buildings is an important measure to achieve climate change mitigation. It is essential to minimize heat losses in designing phase in accordance of building energy efficiency. For building energy efficiency in a mild climate zone, a large part of the heating demand is caused by transmission losses through the building envelope. Building envelopes with high thermal resistance are typical for low-energy buildings in general. In this sense thermal bridges impact increases by using of greater thickness of thermal insulation. This paper is focused on thermal bridges minimizing through typical system details in buildings. The impact of thermal bridges was studied by comparative calculations for a case study of building with different amounts of thermal insulation. The calculated results represent a percentage distribution of heat loss through typical building components in correlation of various thicknesses of their thermal insulations.

Study on Building Materials with Exterior Insulation System Problems and Solutions

2013 ◽  
Vol 788 ◽  
pp. 656-659
Author(s):  
Xiao Jie Zhang ◽  
Yuan Ping Liu
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Building Materials ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Insulation System ◽  
External Wall ◽  
Construction Methods ◽  
Problems And Solutions ◽  
Domestic Use

Building palisade structure is the most important part of the wall, so the external wall thermal insulation technology has become an important part of building energy efficiency. After the author found the domestic use of insulation materials in a variety of forms, different use method makes the external wall thermal insulation system has a problem. The analysis of the cause of the problem at the same time, this paper discusses how to use of selected materials and improving the construction methods to avoid the happening of the accident.

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