Evaluating the Energy Performance of Historic Buildings: Experimental Methodology for the Analysis of Heat Transfer in the Surface Boundary Layers of Wall Assemblies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00368256" target="_blank" >RIV/68407700:21110/23:00368256 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/978-3-031-39603-8_20" target="_blank" >https://doi.org/10.1007/978-3-031-39603-8_20</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-031-39603-8_20" target="_blank" >10.1007/978-3-031-39603-8_20</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluating the Energy Performance of Historic Buildings: Experimental Methodology for the Analysis of Heat Transfer in the Surface Boundary Layers of Wall Assemblies

Popis výsledku v původním jazyce

Energy performance represents a major focus in building engineering, with an increasingly marked urgency arising over the last decades due to growing environmental concerns. The European Union nowadays stresses the importance of energy efficiency and decarbonisation of the existing building stock through the implementation of adequate mitigation strategies addressing climate changes and energy transition [1]. In this perspective, historical constructions, constituting a conspicuous percentage of the built environment, are very relevant and present indeed huge energy-saving potential. This study aims at evaluating the energy performance of buildings with particular insights on adequate optimisation of thermal insulating capabilities of historical constructions. More specifically, the paper focuses on ongoing experiments carried out in a climatic wind tunnel, based on past results [2, 3], where several types of building envelopes are tested monitoring their responses to realistic climatic scenarios. The experimental data obtained ensure describing the interrelationship among various parameters such as temperature, relative humidity, wind velocity and direction as well as heat fluxes in the building component and surface roughness. The main objective is to describe the heat transfer in the mixed velocity-thermal boundary layer near the envelope surfaces. For that purpose, convective heat transfer coefficients for various types of envelopes are determined under different environmental conditions using a combined experimental-computational method, as in e.g. [4]. The obtained outputs are exploited in energy simulation models and heat transfer simulations to achieve higher accuracy than standardized methods. Future work is also outlined in the perspective of bettering energy performance and its evaluation in historic buildings.

Název v anglickém jazyce

Evaluating the Energy Performance of Historic Buildings: Experimental Methodology for the Analysis of Heat Transfer in the Surface Boundary Layers of Wall Assemblies

Popis výsledku anglicky

Energy performance represents a major focus in building engineering, with an increasingly marked urgency arising over the last decades due to growing environmental concerns. The European Union nowadays stresses the importance of energy efficiency and decarbonisation of the existing building stock through the implementation of adequate mitigation strategies addressing climate changes and energy transition [1]. In this perspective, historical constructions, constituting a conspicuous percentage of the built environment, are very relevant and present indeed huge energy-saving potential. This study aims at evaluating the energy performance of buildings with particular insights on adequate optimisation of thermal insulating capabilities of historical constructions. More specifically, the paper focuses on ongoing experiments carried out in a climatic wind tunnel, based on past results [2, 3], where several types of building envelopes are tested monitoring their responses to realistic climatic scenarios. The experimental data obtained ensure describing the interrelationship among various parameters such as temperature, relative humidity, wind velocity and direction as well as heat fluxes in the building component and surface roughness. The main objective is to describe the heat transfer in the mixed velocity-thermal boundary layer near the envelope surfaces. For that purpose, convective heat transfer coefficients for various types of envelopes are determined under different environmental conditions using a combined experimental-computational method, as in e.g. [4]. The obtained outputs are exploited in energy simulation models and heat transfer simulations to achieve higher accuracy than standardized methods. Future work is also outlined in the perspective of bettering energy performance and its evaluation in historic buildings.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA22-08786S" target="_blank" >GA22-08786S: Přenos tepla v mezních vrstvách při povrchu obvodových plášťů budov a jeho vliv na energetickou náročnost objektů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Structural Analysis of Historical Constructions (SAHC 2023)

ISBN

978-3-031-39450-8

ISSN

2211-0844

e-ISSN

2211-0844

Počet stran výsledku

11

Strana od-do

236-246

Název nakladatele

Springer, Cham

Místo vydání

—

Místo konání akce

Kyoto

Datum konání akce

12. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—