Observation of Biological Pests on Building Facades by Thermocamera

2014 ◽  
Vol 923 ◽  
pp. 183-186 ◽  
Author(s):  
Zdeněk Peřina ◽  
Jaroslav Solař ◽  
Blahoslav Maršálek ◽  
Eliška Maršálková ◽  
Radek Fabian ◽  
...  
Keyword(s):  
Infrared Thermography ◽  
Thermal Energy ◽  
Building Materials ◽  
Biological Factors ◽  
Building Facades ◽  
Stone Concrete

Microorganisms on the facades of buildings (eg, algae and cyanobacteria) are the harmful factors that cause destruction of the surface of building materials in exterior (facade paints, plasters, masonry, stone, concrete, etc.). One of the properties of listed biological factors is the production of thermal energy, which can vary in different species. Mentioned energy can be recorded using infrared thermography. The paper contains the results of the examined expressions of the biological pests on the insulated facades of the buildings using infrared thermography.

scholarly journals Pathology of Building Materials in Historic Buildings. Relationship Between Laboratory Testing and Infrared Thermography

2013 ◽  
Vol 64 (313) ◽  
pp. e009 ◽  
Author(s):  
C. Lerma ◽  
Á. Mas ◽  
E. Gil ◽  
J. Vercher ◽  
M. J. Peñalver
Keyword(s):  
Infrared Thermography ◽  
Laboratory Testing ◽  
Building Materials ◽  
Historic Buildings

To identify the defects illustrated on building facades by employing infrared thermography under shadow

2020 ◽  
Vol 111 ◽  
pp. 102240 ◽  
Author(s):  
Yishuo Huang ◽  
Paul Shih ◽  
Keng-Tsang Hsu ◽  
Chih-Hung Chiang
Keyword(s):  
Infrared Thermography ◽  
Building Facades

A review on the application of photovoltaic thermal systems for building façades

2019 ◽  
Vol 41 (1) ◽  
pp. 86-107 ◽  
Author(s):  
Ahmad Riaz ◽  
Ruobing Liang ◽  
Chao Zhou ◽  
Jili Zhang
Keyword(s):  
Thermal Energy ◽  
Large Scale ◽  
Electrical Energy ◽  
Building Envelope ◽  
Hot Water ◽  
Working Fluid ◽  
Thermal Systems ◽  
Air Supply ◽  
Building Facades ◽  
Photovoltaic Thermal System

The hybrid photovoltaic-thermal system has shown great progress. Electrical energy is produced from PV panels while thermal energy is produced via a working fluid carried through the panels. In this paper, the vertical PV/T is introduced using working fluids such as air and liquid, which serve to control the excess temperature of the PV panels as well as to collect heat to be made available as thermal energy. Installations of PV/T systems on building façades, as well as integration with other technologies such as heat pipe and heat pump are also discussed. Current studies of such building integration technologies are also explored, including the scale of application. This study aims to provide constructive information which can be used in future development of building facades for large-scale applications, to contribute to future sustainable development. Practical application: This study helps researchers and engineers who are considering photovoltaic thermal systems for building façades to have better understanding of its effect on electrical and thermal energy – for space heating, fresh air supply and hot water supply – using an active building envelope.

Threshold Values for Energy Loss in Building Façades Using Infrared Thermography

2017 ◽  
pp. 427-437 ◽  
Author(s):  
Juan José Moyano Campos ◽  
Daniel Antón García ◽  
Fernando Rico Delgado ◽  
David Marín García
Keyword(s):  
Energy Loss ◽  
Infrared Thermography ◽  
Threshold Values ◽  
Building Facades

scholarly journals Environmental Factors Causing the Development of Microorganisms on the Surfaces of National Cultural Monuments Made of Mineral Building Materials—Review

Coatings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1203
Author(s):  
Elżbieta Stanaszek-Tomal
Keyword(s):  
Environmental Factors ◽  
Building Materials ◽  
Ion Concentration ◽  
Physical Factors ◽  
Comprehensive Overview ◽  
Hydrogen Ion Concentration ◽  
Factors Affecting ◽  
Stone Concrete ◽  
The Impact ◽  
Cultural Monuments

The ability of microorganisms to degrade building materials depends on several factors. Biological corrosion occurs in close dependence with chemical and physical factors affecting microorganisms. The growth and development of microorganisms is stimulated by external stimuli, i.e., environmental factors. Microorganisms have a relatively large tolerance range for changes in environmental conditions. Under the right conditions, microorganisms thrive very well. The adverse effects may cause the inhibition of cell growth, damage, or lead to the death of the microorganism. Considering the impact of environmental factors on microorganisms, it is not possible to identify the most important of them. The result effect of overlapping factors determines the possibility of the growth of certain microorganisms. The main factors affecting the growth are temperature, humidity, hydrogen ion concentration in the environment, oxidoreductive potential, water activity in the environment, and hydrostatic pressure. This article provides a comprehensive overview of the factors causing biodeterioration. The influence of external/internal environment on the surface of cultural monuments made of mineral building materials, i.e., stone, concrete, mortar, etc., is presented.

scholarly journals The Feasibility of Identifying Defects Illustrated on Building Facades by Applying Thermal Infrared Images with Shadow

Proceedings ◽  
2019 ◽  
Vol 27 (1) ◽  
pp. 3
Author(s):  
Tsai ◽  
Huang ◽  
Tai
Keyword(s):  
Surface Temperature ◽  
Infrared Thermography ◽  
Infrared Camera ◽  
Thermal Infrared ◽  
Infrared Images ◽  
Building Facades ◽  
Thermal Infrared Images ◽  
Non Destructive

Infrared thermography (IRT) has been widely employed to identify the defects illustrated in building facades. However, the IRT covered with a shadow is hard to be applied to determine the defects shown in the IRT. The study proposed an approach based on the multiplicated model to describe quantitively the shadow effects, and the IRT can be segmented into few classes according to the surface temperature information recorded on the IRT by employing a thermal infrared camera. The segmented results were compared with the non-destructive method (acoustic tracing) to verify the correctness and robustness of the approach. From the processed results, the proposed approach did correctly identify the defects illustrated in building facades through the IRTs were covered with shadow.

Fabrication and properties of microencapsulated-paraffin/gypsum-matrix building materials for thermal energy storage

2012 ◽  
Vol 55 ◽  
pp. 101-107 ◽  
Author(s):  
Jun-Feng Su ◽  
Xin-Yu Wang ◽  
Sheng-Bao Wang ◽  
Yun-Hui Zhao ◽  
Zhen Huang
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Building Materials

scholarly journals DURABILITY OF THE PAINTED RENDERED FACADES, WHEN INTRODUCING ARTIFICIAL ACIDIC RAIN SOLUTION

2004 ◽  
Vol 10 (4) ◽  
pp. 295-302
Author(s):  
Rosita Norvaišiene ◽  
Arūnas Burlingis
Keyword(s):  
Atmospheric Pollution ◽  
Building Materials ◽  
Water Solution ◽  
Paint Film ◽  
Acidic Water ◽  
Water Solutions ◽  
Building Facades ◽  
Acidic Rain ◽  
Weather Resistance ◽  
The Impact

The essential function of exterior walls is to provide a continuous barrier to the exterior environmental conditions. The decay of the building facades is accelerated by atmospheric pollution and acidic precipitation. For determining of the impact of atmospheric pollution on the building facade face materials, the tests examining the impact of the cyclic moisturing‐drying have been carried out with the use of acidic water solution to imitate acidic rain. The results of the experiments demonstrated that water solutions have greater destructive effects on the paint film by penetrating through it into the plaster base, thus forming new derivatives in it, which increase water absorption in the plaster base. In order to improve the standard testing on weather resistance of facing building materials, which does not ignore the impact of the atmospheric pollution, for localities where acidic precipitations are frequent, the climatic tests should also include the deteriorating effect of acidic water solutions on facing materials. The results of the experiments will be used for a creation of the prognostic method which will lead to the establishment of a new accelerated climatic ageing test cycle meant for determining a more reliable prognosis of the durability of materials.

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