Experimental evaluation of a heating radiant wall coupled to a ground source heat pump

RENEWABLE ENERGY

卷:105

Article

Romani, Joaquim¹  Perez, Gabriel¹  de Gracia, Alvaro² 

[1] Univ Lleida, GREA Innovacio Concurrent, Edifici CREA,Pere Cabrera S-N, Lleida 25001, Spain

[2] Univ Rovira & Virgili, Dept Engn Mecan, Ave Paisos Catalans 26, E-43007 Tarragona, Spain

关键词: Thermally activated building systems (TABS);    Radiant walls;    Radiant heating;    Ground source heat pump (GSHP);   

DOI  :  10.1016/j.renene.2016.12.087

来源: Elsevier

【 摘 要 】

A radiant wall heating system embedded in a heavy brickwork envelope and coupled to a ground source heat pump supplied has been experimentally tested under real outdoor conditions. This system was applied to a room sized cubicle built in Puigverd de Lleida (Spain) test-site, where it was studied in system vs. system analysis in comparison to a reference cubicle built with commercial available technologies (insulated alveolar brick wall and air-to-air heat pump). The results showed the potential of the radiant wall, which in continuous operation reached energy savings between 19.97% and 40.72% based on set-point temperature. Most important, the active thermal mass of radiant wall allowed operating in off peak periods. Otherwise, this peak load shifting ability was completely inexistent in the reference cubicle. However, the results show that the radiant cubicle was unsuited to operate in occupancy schedules due to its slow response time. Furthermore, the tests show that optimization of the radiant wall system requires a control strategy that takes in account the dynamics of the system. (C) 2017 Elsevier Ltd. All rights reserved.

【 授权许可】

Free