Evaluation of Two Chilean Native Macroalgae: "Pelillo" (Gracilaria chilensis) and "Lamilla" (Ulva sp.) for Thermal Insulation Application

Primer Autor
Cardenas-Ramirez, Juan Pablo
Co-autores
Herrera, Carlos Javier Rojas
Neira, Karin Rodriguez
Título
Evaluation of Two Chilean Native Macroalgae: "Pelillo" (Gracilaria chilensis) and "Lamilla" (Ulva sp.) for Thermal Insulation Application
Editorial
MDPI
Revista
BUILDINGS
Lenguaje
en
Resumen
Energy consumption in the residential sector and air pollution are relevant topics for the global population. One of the causes, especially in cold climate cities, is that buildings maintain a high energy consumption for heating and cooling, primarily using low-efficiency biomass combustion for heating, which releases a significant amount of particulate matter into the environment. In this context, thermal insulation materials play a crucial role in reducing the energy demand of buildings, requiring advancements in the sustainable development of such materials within the context of climate change. This study carried out an evaluation of two algae species found along the Chilean coasts, with the aim of characterizing them and creating a prototype of a sustainable material. Their physicochemical properties were analyzed, and the results demonstrate that the algae exhibit excellent thermal insulation properties, with an average thermal conductivity of 0.036 [W/mK]. This result is comparable to expanded polystyrene (EPS), a widely used material in the Chilean and global markets, which has an average thermal conductivity value of 0.038 [W/mK]. Additionally, the algae show a good thermal stability, and their morphology contributes to the development of a bulk material, as they possess a porous structure with air chambers between the fibers.
Fecha Publicación
2023
Tipo de Recurso
artículo original
doi
10.3390/buildings13102622
Formato Recurso
PDF
Palabras Claves
energy efficiency
natural thermal insulation
low environmental impact material
sustainability
Ubicación del archivo
Categoría OCDE
Construcción y tecnología de la edificación
Ingeniería
Materias
eficiencia energética
aislamiento térmico natural
material de bajo impacto ambiental
sostenibilidad
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
versión publicada
License
CC BY 4.0
Condición de la licencia (Recomendado-repetible)
CC BY 4.0
Derechos de acceso
acceso abierto
Access Rights
acceso abierto
Id de Web of Science
WOS:001096640100001
Tipo de ruta
verde# dorado
Categoría WOS
Construcción y tecnología de la edificación
Ingeniería
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