Effect of temperature and Humidity on the Thermal Conductivity λ of Insulation Materials

• Autorzy: Kendzierawska Weronika , Trochonowicz Maciej

Identyfikatory

DOI

10.59440/ceer/178976

• Języki publikacji: EN

Abstrakty

EN

The aim of this article is to address the influence of air humidity and testing temperature on the thermal conductivity coefficient (λ) of various thermal insulation materials. This group includes wood-based materials, rock wools, heat-insulating renders, climate boards, and lightweight cellular concretes. These materials are used both indoors and outdoors in buildings. Over the course of several years, data were collected from laboratory tests to determine the thermal conductivity coefficient (λ) in relation to increases in temperature and humidity. The obtained results were compared with values provided by the manufacturers of the insulation materials. The aforementioned research was carried out due to the rather high sorption of most materials and thus the possibility of them becoming humid at high air humidity. Because of the very large difference in the thermal conductivity coefficient of water and air, a relatively small increase in the mass moisture content of the materials results in a loss of insulation.

Słowa kluczowe

EN

thermal insulation material; thermal conductivity coefficient; thermal insulation; interior thermal insulation

PL

materiały termoizolacyjne; współczynnik przewodności cieplnej; izolacja cieplna; termoizolacja wnętrz

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Civil and Environmental Engineering Reports
• Rocznik: 2023
• Tom: Vol. 33, no. 4
• Strony: 42--49
• Opis fizyczny: Bibliogr. 10 poz., tab., wykr.

Twórcy

autor

Kendzierawska Weronika

• Lublin University of Technology, Faculty of Civil Engineering and Architecture, Department of Conservation of Monuments, Poland

autor

Trochonowicz Maciej

• Lublin University of Technology, Faculty of Civil Engineering and Architecture, Department of Conservation of Monuments, Poland

• https://orcid.org/0000-0001-7742-7916

Bibliografia

• 1. Demirboğa, R and Rüstem, G 2003. The Effects of Expanded Perlite Aggregate, Silica Fume and Fly Ash on the Thermal Conductivity of Lightweight Concrete. Cement and Concrete Research 33(5), 723-727.
• 2. Ickewicz, I, Sarosiek, W and Ickiewicz, J 2000. Fizyka budowli wybrane zagadnienia (Building physics selected topics). Białystok: Dział Wydawnictw i Poligrafii PB.
• 3. Laser Comp FOX 314 user manual.
• 4. Pavlík, Z 2021. Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties. Materials, 2613.
• 5. Trochonowicz, M and Galas, M 2018. Influence of air humidity and temperature on thermal conductivity of wood-based materials. Budownictwo i Architekruta, 17, 77-86.
• 6. Trochonowicz, M and Kucio, K 2014. Badanie możliwości wykorzystania betonu komórkowego o niskiej gęstości do dociepleń wewnętrznych (Investigating the feasibility of using low-density cellular concrete for interior thermal insulation). In: Franus, W (ed), Trochonowicz, M (ed) Czas inżynierów (Engineers' time). Politechnika Lubelska, 147-155.
• 7. Trochonowicz, M, Szostak, B and Hendzel, P 2022. Wpływ wilgotności powietrza i temperatury na współczynnik przewodzenia ciepła tynków perlitowych (Influence of humidity and temperature on the thermal conductivity coefficient of perlite plasters). Teka Komisji Architektury, Urbanistyki i Studiów Krajobrazowych, 18, 30-40.
• 8. Trochonowicz, M, Witek, B and Chwiej, M 2013. Impact analysis of humidity and temperature on the value of thermal conductivity λ coefficient of insulating materials used inside buildings. Budownictwo i Architektura, 12, 165-176.
• 9 . Yves, G, Hayen, R, Bouw, M, Verdonck, A, Meulebroeck, W and Mertens, S 2018. Performance of a Lime-Based Insulating Render for Heritage Buildings. Construction and Building Materials, 159, 376-389.
• 10. Zakrzewski, T, 2003. Zagadnienia fizykalne w budownictwie (Physical issues in construction). Gliwice: Wydawnictwo Politechniki Śląskiej.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024)