TY - JOUR
T1 - Thermal evaluation of a Trombe wall with phase change material for heating in the cold season
T2 - Effect of PCM location, melting point, and wall materials
AU - Vázquez-Beltrán, E.
AU - Aparicio-Mercado, L. F.
AU - Hernández-López, I.
AU - Hinojosa, J. F.
AU - Ibarra-Salazar, J. P.
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2025/4/15
Y1 - 2025/4/15
N2 - A parametric study of a phase change material Trombe wall (PCM-TW) system was carried out under the climatic conditions of a temperate city (Cwb) during the coldest period of the year. An alternative sustainable and passive indirect gain technology for heating buildings is the Trombe wall (TW). This work analyses in detail the effect that the melting point and position of a phase change material (PCM) have together on the thermal performance of a TW. In addition, this work analyzes configurations of construction materials that have not been reported previously. The results were presented in terms of daytime thermal efficiency, nighttime thermal efficiency, storage efficiency, dissipation efficiency, and PCM average liquid fraction. The results showed that the best nighttime performance is obtained by placing a low melting point PCM (29 °C) on a concrete wall and locating it at the opposite end of the absorber surface. On the other hand, PCMs with high melting points (48 and 60 °C) present the worst thermal performance of the system since in no configuration could they reach the liquid phase completely. In addition, the performance improves if the wall is made of concrete (high thermal diffusivity) in the absorber section and adobe (low thermal diffusivity) in the room section. This combination produced the maximum values of storage efficiency (27.66%) and dissipation efficiency (67.60%).
AB - A parametric study of a phase change material Trombe wall (PCM-TW) system was carried out under the climatic conditions of a temperate city (Cwb) during the coldest period of the year. An alternative sustainable and passive indirect gain technology for heating buildings is the Trombe wall (TW). This work analyses in detail the effect that the melting point and position of a phase change material (PCM) have together on the thermal performance of a TW. In addition, this work analyzes configurations of construction materials that have not been reported previously. The results were presented in terms of daytime thermal efficiency, nighttime thermal efficiency, storage efficiency, dissipation efficiency, and PCM average liquid fraction. The results showed that the best nighttime performance is obtained by placing a low melting point PCM (29 °C) on a concrete wall and locating it at the opposite end of the absorber surface. On the other hand, PCMs with high melting points (48 and 60 °C) present the worst thermal performance of the system since in no configuration could they reach the liquid phase completely. In addition, the performance improves if the wall is made of concrete (high thermal diffusivity) in the absorber section and adobe (low thermal diffusivity) in the room section. This combination produced the maximum values of storage efficiency (27.66%) and dissipation efficiency (67.60%).
KW - Building heating system
KW - Passive solar heating
KW - Phase change material
KW - Thermal energy storage
KW - Trombe wall
UR - http://www.scopus.com/inward/record.url?scp=85214217305&partnerID=8YFLogxK
U2 - 10.1016/j.jobe.2024.111620
DO - 10.1016/j.jobe.2024.111620
M3 - Artículo
AN - SCOPUS:85214217305
SN - 2352-7102
VL - 100
JO - Journal of Building Engineering
JF - Journal of Building Engineering
M1 - 111620
ER -