Experimental evaluation of the optimal position of a macroencapsulated phase change material incorporated composite roof under hot climate conditions

• DOI: 10.1016/j.seta.2021.101121
• Publication Date: 2021-03-02T01:19:25Z
• Authors: Qudama Al-Yasiri; Márta Szabó
• Keywords: Maximum temperature; Position (finance)

This paper experimentally investigates the optimal position of a phase change material (PCM) incorporated composite roof under Iraq climatic conditions. The composed Isogam (4 mm), concrete (50 mm) and gypsum board (8 which is an Iraqi popular combination. Four models are installed tested; one represented reference (Model A) others with PCM. PCM placed between B), in middle C), D). Set indicators introduced to compare among considering test room temperature, outside inside surface temperatures. These maximum temperature reduction (RMTR), average fluctuation (ATFR), decrement factor (DF), time lag (TL) heat flux (HFR). Results showed that Model B verified best thermal performance, was effectively working at high reduced by up 9 °C compared model. Moreover, 12.9%, 8.4–9.5 °C, 0.44–0.49, 140–180 min, 47.9–64.6% respectively RMTR, ATFR, DF, TL, HFR, obtained for