Tests of thermal resistance of simulated walls with the reflective insulation

Piotrowski, Jerzy Zbigniew; Orman, Łukasz J.; Lucas, Xavier; Zender–Świercz, Ewa; Telejko, Marek; Koruba, Dorota

doi:10.1051/epjconf/20146702095

Cited by 25 publications

(13 citation statements)

References 5 publications

(5 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite many studies conducted in educational buildings, very few deal with modern, intelligent buildings. The present study aims to provide additional knowledge in this area, especially that modern buildings are built with new materials and technologies (as indicated by Piotrowski et al [25]).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Indoor Environment in the Intelligent Building

Dębska

2021

Civil and Environmental Engineering

View full text Add to dashboard Cite

Currently, thermal comfort and indoor air quality are essential elements in designing modern and intelligent buildings or improving existing ones, so that they would provide proper indoor conditions. The article focuses on the thermal sensations of the students of Kielce University of Technology and determining whether the given parameters of the internal environment contributed to their well-being. 164 people aged 16 - 24 participated in the study, which was conducted with the use of a microclimate meter and questionnaires. It turned out that the temperature range from 19.3 °C – 27.6 °C is acceptable and comfortable for nearly 78% of people. As a result of further analysis, it turned out that the research group definitely prefers and feels better in colder temperatures.

show abstract

Section: Introductionmentioning

confidence: 99%

Assessment of the Indoor Environment in the Intelligent Building

Dębska

2021

Civil and Environmental Engineering

View full text Add to dashboard Cite

show abstract

“…This means that 25 % of people were dissatisfied with the conditions in the room. The study by Majewski et al [13] additionally confirms that statistically men feel more comfortable than women. The graph below (Fig.…”

Section: Resultsmentioning

confidence: 79%

“…Ji et al [11] showed that the human body is more sensitive to cold temperatures than to warm ones. Based on the papers [12,13], it can be concluded that air temperature and humidity have the greatest influence on the thermal sensations. Thus, changes in temperature affect the impression of thermal comfort.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Thermal Comfort in a Single-Family House in Poland

Krawczyk

Surmańska

2020

Civil and Environmental Engineering

View full text Add to dashboard Cite

The article presents test research on thermal sensations, thermal preferences, as well as general thermal sensations in a single-family building. Graphs were drawn to determine the frequency of answers chosen by the respondents and the relationship between temperature and thermal sensations, as well as the influence of relative humidity on thermal sensations. A comparison was also made between the average thermal sensation vote and the PMV index, which determines the ‘predicted mean vote’ - estimated by the Fanger model. The aim of the study was to compare the actual feelings of the respondents with standard guidelines. As a result of this analysis it was found that the thermal sensations of the respondents do not comply with the adopted model included in the standard.

show abstract

“…The measurements were found to be very useful for determining the actual thermal performance of the exterior walls in existing buildings, especially since the values determined on-site in buildings in the actual conditions would often significantly differ from the calculated ones. In the subsequent years, several experimental and computational studies aimed at determining the total thermal resistance of walls, using the approach for heat flow steady state, including reviews of the measurement methods [ 8 , 9 ], methodology [ 10 , 11 , 12 , 13 ], the use of in situ methods [ 2 , 14 , 15 , 16 , 17 ] and unsteady state conditions [ 18 , 19 , 20 , 21 ], were carried out.…”

Section: Introductionmentioning

confidence: 99%

Non-Destructive Possibilities of Thermal Performance Evaluation of the External Walls

Nowak

2021

Materials

View full text Add to dashboard Cite

Identification of the actual thermal properties of the partitions of building enclosures has a significant meaning in determining the actual energy consumption in buildings and in their thermal comfort parameters. In this context, the total thermal resistance of the exterior walls (and therefore their thermal transmittance) in the building is a major factor which influences its heat losses. There are many methods to determine the total thermal resistance of existing walls, including the quantitative thermography method (also used in this study). This paper presents a comparison of the calculated total thermal resistance values and the measured ones for three kinds of masonry walls without thermal insulation and the same walls insulated with expanded polystyrene boards. The measurements were carried out in quasi-stationary conditions in climate chambers. The following three test methods were used: the temperature-based method (TBM), the heat flow meter method (HFM) and the infrared thermography method (ITM). The measurement results have been found to be in good agreement with the theoretically calculated values: 61% of the measured values were within 10% difference from the mean value of total thermal resistance for a given external wall and 79% of the results were within 20% difference. All of the used measuring methods (TBM, HFM and ITM) have proven to be similarly approximate in obtained total thermal resistances, on average between 6% and 11% difference from the mean values. It has also been noted that, while performing measurements, close attention should be paid to certain aspects, because they can have a major influence on the quality of the result.

show abstract

Tests of thermal resistance of simulated walls with the reflective insulation

Cited by 25 publications

References 5 publications

Assessment of the Indoor Environment in the Intelligent Building

Assessment of the Indoor Environment in the Intelligent Building

Analysis of Thermal Comfort in a Single-Family House in Poland

Non-Destructive Possibilities of Thermal Performance Evaluation of the External Walls

Contact Info

Product

Resources

About