PCM incorporation in a concrete core slab as a thermal storage and supply system: Proof of concept

被引：75
作者：
Navarro, Lidia [1 ]
de Gracia, Alvaro [1 ]
Castell, Albert [1 ]
Alvarez, Servando [2 ]
Cabeza, Luisa F. [1 ]
机构：
[1] Univ Lleida, GREA Innovacio Concurrent, Edifici CREA,Pere Cabrera S-N, Lleida 25001, Spain
[2] Univ Seville, Grp Termotecnia, Seville 41092, Spain
来源：
ENERGY AND BUILDINGS | 2015年 / 103卷
关键词：
Thermal energy storage (TES); Phase change materials (PCM); Concrete core slab; Building; Space heating; Solar air collector; ENERGY-STORAGE; PHASE-CHANGE; VENTILATED FACADE; BUILDINGS;
D O I：
10.1016/j.enbuild.2015.06.028
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Phase change materials (PCM) have been widely implemented in buildings envelope as passive system as well as in storage tanks for active systems. A new promising technology has been designed to act as a hybrid system between the passive and active ones. The main idea is using the internal slab as a thermal energy storage system to cover partially the energetic demand both during heating and cooling periods. This innovative constructive system consists of a prefabricated concrete slab with PCM macro-encapsulated in small tubes and inserted in its hollows. A direct cross-flow heat exchange occurs between the air pumped into the slab and the PCM for conditioning purposes. A prototype has been implemented in a two storey house-like cubicle and has been tested under real conditions, where the slab becomes a thermal storage and supply component. The objective is to study the thermal performance of the slab and its components, in a theoretical analysis, as well as the suitability of the system in a Mediterranean continental climate. The concept was proved experimentally and compared to the theoretical results to demonstrate the potential of the technology. However, experimental results remarked the importance of a further investigation under real operating conditions. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：70 / 82
页数：13
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