Studying of the Behavior of Thermal Insulation Materials Based on Natural Fibers for Incorporation into the Building Structure

2014 ◽  
Vol 1041 ◽  
pp. 67-70
Author(s):  
Jiri Zach ◽  
Jitka Peterková ◽  
Vítězslav Novák
Keyword(s):  
Thermal Insulation ◽  
Natural Fibers ◽  
High Humidity ◽  
Building Structure ◽  
Moisture Sensitivity ◽  
Insulating Materials ◽  
Insulation Materials ◽  
Bast Fibers ◽  
Thermal Insulating ◽  
Hygrothermal Behavior

Thermal insulation materials based on natural fibers exhibit after incorporation into the construction of higher moisture sensitivity, while high humidity may just be the reason for the degradation of their thermal insulation properties and in extreme cases can lead to a reduction in their lifetime. The paper describes the results of research focused on the study of hygrothermal behavior of thermal insulating materials on the basis of bast fibers and their behavior after incorporation into the building structure.

Possibilities of Using Natural Fibres for Production of Particular Insulation for Use in Civil Engineering

2015 ◽  
Vol 1124 ◽  
pp. 111-116
Author(s):  
Martina Reif ◽  
Jitka Peterková ◽  
Jiri Zach
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Thermal Insulation ◽  
Civil Engineering ◽  
Research Work ◽  
Natural Fibers ◽  
Cellulose Fibers ◽  
Natural Fibres ◽  
Insulation Materials ◽  
Bast Fibers

The paper deals with the development options of particular insulation based on a blend of recycled cellulose fibers and natural (mainly) bast fibers. The paper presents the results of research work in the field of addiction thermal insulation, acoustic and mechanical properties of experimentally produced insulators on density..Keywords: Natural fibers, thermal conductivity, insulation materials, straw, fibreboard, cellulose fibers

Evaluation of Structure Influence on Thermal Conductivity of Thermal Insulating Materials from Renewable Resources

1970 ◽  
Vol 17 (2) ◽  
pp. 208-212 ◽  
Author(s):  
Jolanta VĖJELIENĖ ◽  
Albinas GAILIUS ◽  
Sigitas VĖJELIS ◽  
Saulius VAITKUS ◽  
Giedrius BALČIŪNAS
Keyword(s):  
Thermal Conductivity ◽  
Thermal Insulation ◽  
Renewable Resources ◽  
Raw Materials ◽  
Raw Material ◽  
Barley Straw ◽  
Insulation Material ◽  
Insulating Materials ◽  
Insulation Materials ◽  
Thermal Insulating

The development of new thermal insulation materials needs to evaluate properties and structure of raw material, technological factors that make influence on the thermal conductivity of material. One of the most promising raw materials for production of insulation material is straw. The use of natural fibres in insulation is closely linked to the ecological building sector, where selection of materials is based on factors including recyclable, renewable raw materials and low resource production techniques In current work results of research on structure and thermal conductivity of renewable resources for production thermal insulating materials are presented. Due to the high abundance of renewable resources and a good its structure as raw material for thermal insulation materials barley straw, reeds, cattails and bent grass stalks are used. Macro- and micro structure analysis of these substances is performed. Straw bales of these materials are used for determining thermal conductivity. It was found that the macrostructure has the greatest effect on thermal conductivity of materials. Thermal conductivity of material is determined by the formation of a bale due to the large amount of pores among the stalks of the plant, inside the stalk and inside the stalk wall.http://dx.doi.org/10.5755/j01.ms.17.2.494

Energy Remediation Combining Insulation Materials Based on Calcium Silicate and Expanded Polymers

2016 ◽  
Vol 865 ◽  
pp. 196-200 ◽  
Author(s):  
A. Brenek ◽  
V. Vaclavik ◽  
T. Dvorsky ◽  
Vojtěch Šimíček
Keyword(s):  
Thermal Insulation ◽  
Calcium Silicate ◽  
Expanded Polystyrene ◽  
Insulating Materials ◽  
Insulation Materials ◽  
Clay Bricks ◽  
Thermal Insulating ◽  
House Construction ◽  
Lower House ◽  
Transient Models

Energy rehabilitation of buildings using airtight insulating materials based on expanded polystyrene is often accompanied by the formation of moisture problems in the enclosure wall footing. Moisture progress in the rehabilitated structure is simulated using modern moisture transient models in Delphin software. Combinations of the developed plate thermal insulating materials based on calcium silicate and the conventional thermal insulation panels based on expanded polymer have been designed to address the moisture problems. This article describes the function of this solution during the reconstruction of a house built from full clay bricks with malfunctioning waterproofing in the lower house construction.

Study of Hygrothermal Behavior of Insulation Materials Based on Natural Fibers

2015 ◽  
Vol 1124 ◽  
pp. 97-102
Author(s):  
Jiri Zach ◽  
Jitka Peterková
Keyword(s):  
Building Materials ◽  
Natural Fibers ◽  
Natural Fibre ◽  
Heat Propagation ◽  
Natural Fibres ◽  
Low Carbon ◽  
Insulating Materials ◽  
Thermal Insulating ◽  
Hygrothermal Behavior ◽  
Insulating Properties

Natural fibre based thermal insulating materials belong to progressive building materials representing one of the possible ways in sustainable development and which are characterised with low carbon trace and low value of primary bound energy. In case of industrially produced insulating materials (for instance using thermal connection method) the insulating materials based on natural fibres showed comparable properties with industrially produced insulating materials on building markets. In the view of thermal insulating properties the natural insulating material show slightly different behavior in comparison with synthetic insulating materials which is caused by fibrous structure of insulating materials and low thermal conductivity of natural fibres (contrary to glass or mineral fibres). The paper describes results of research oriented on study of heat propagation within materials based on natural fibres originated from agriculture and stockbreeding.

Possibilities of Development of Thermal Insulating Materials Based on Waste Textile Fibers

2015 ◽  
Vol 1124 ◽  
pp. 183-188 ◽  
Author(s):  
Martin Sedlmajer ◽  
Jiri Zach ◽  
Jitka Hroudova
Keyword(s):  
Thermal Insulation ◽  
Insulating Materials ◽  
Textile Fibers ◽  
Insulating Material ◽  
Insulation Materials ◽  
Thermal Insulating ◽  
Subsequent Incorporation ◽  
Natural And Synthetic

The paper describes the possibility of using textile fibers (natural and synthetic) for the production of thermal insulation materials in the form of mats using in construction. The paper deals mainly with soft thermal insulation mats and the factors that affect the thermal insulation properties of the insulating material in its manufacture and subsequent incorporation into the structure.

Investigation of Thermal Insulation Materials Based on Easy Renewable Row Materials from Agriculture

2011 ◽  
Vol 335-336 ◽  
pp. 1412-1417 ◽  
Author(s):  
Jiri Zach ◽  
Jitka Peterková ◽  
Vít Petranek ◽  
Jana Kosíková ◽  
Azra Korjenic
Keyword(s):  
Thermal Insulation ◽  
Building Materials ◽  
Raw Materials ◽  
Building Construction ◽  
Materials Development ◽  
Insulation Materials ◽  
Thermal Insulating ◽  
Plastic Materials ◽  
Energy Consuming ◽  
Rock Wool

Production of building materials is mostly energy consuming. In the sphere of insulation materials we mostly see rock wool based materials or foam-plastic materials whose production process is demanding from material aspect and raw materials aspect as well. At present the demand for thermal insulation materials has been growing globally. The thermal insulation materials form integral part of all constructions in civil engineering. The materials mainly fulfill the thermal insulating functions and also the sound-insulating one. The majority of thermal insulation materials are able to fulfill both of the functions simultaneously. The paper describes questions of thermal insulation materials development with good sound properties based on natural fibres that represent a quickly renewable source of raw materials coming from agriculture. The main advantage of the materials are mainly the local availability and simple renewability of the raw materials. In addition an easy recycling of the materials after their service life end in the building construction and last but not least also the connection of human friendly properties of organic materials with advanced product manufacture qualities of modern insulation materials.

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.

Research of benonite clays of Karakalpakstan for producing ceramic heat-insulating materials

2020 ◽  
pp. 3-5
Author(s):  
Z. R. Kadyrova ◽  
A. P. Purkhanatdinov ◽  
Sh. M. Niyazova
Keyword(s):  
Thermal Insulation ◽  
Bentonite Clay ◽  
Physicochemical Characteristics ◽  
Insulating Materials ◽  
Insulation Materials ◽  
The North ◽  
Bentonite Clays ◽  
Comprehensive Study

The results of a comprehensive study of bentonite clays of the North-Dzhamansay deposit of Karakalpakstan to obtain ceramic thermal insulation materials are presented. According to the chemical-mineral and fractional compositions, as well as the physicochemical characteristics of bentonite clay, the possibility of its use in the production of ceramic thermal insulation materials for various purposes has been established.

Hygrothermal Behavior of Thermal Insulating Material Based on Technical Hemp and its Application in Construction

2013 ◽  
Vol 860-863 ◽  
pp. 1223-1226
Author(s):  
Jiri Zach ◽  
Jitka Peterková ◽  
Martin Sedlmajer
Keyword(s):  
Building Materials ◽  
Moisture Absorption ◽  
Moisture Transfer ◽  
Natural Fibers ◽  
High Moisture ◽  
Building Envelopes ◽  
Thermal Insulating ◽  
Energy Demands ◽  
Hygrothermal Behavior ◽  
Heat And Moisture

Natural insulation materials have great potential of development given the contemporary requirements of the society in terms of reducing the energy demands of the production of building materials and the reduction of CO2emissions. Natural fibers are characteristic by their high moisture absorption and combustibility. The paper describes the results of research in the field of heat and moisture transfer within the structure of insulating materials based on natural fibers (hemp). The results of the experiments provided input data for computational simulations of hygrothermal behavior of hemp based fiber insulation applied in building envelopes.

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