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International Journal of Polymer Science
Volume 2017 (2017), Article ID 2693526, 10 pages
Research Article

Proposal of a PCM Underfloor Heating System Using a Web Construction Method

School of Architecture and Building Science, Chung-Ang University, 221 Heuksuk 1-Dong, Dongjak-Ku, Seoul 156-756, Republic of Korea

Correspondence should be addressed to Jin Chul Park

Received 6 January 2017; Accepted 12 February 2017; Published 27 February 2017

Academic Editor: Geun Y. Yun

Copyright © 2017 Sanghoon Baek and Jin Chul Park. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Apartment buildings in Korea have adopted underfloor heating systems using web construction methods based on concrete and hot water systems. However, since such systems consume significant amounts of energy for heating owing to their low thermal storage performance, it is necessary to develop a new system that can minimize energy consumption by improving concrete thermal storage performance. This study proposes a phase-change material (PCM) underfloor heating system to reduce energy consumption in apartment buildings. An optimal design for a PCM underfloor heating system is proposed, and thermal storage performance of the proposed system is evaluated experimentally. The temperature range of the PCM for underfloor heating is also calculated considering the proposed design and comfortable heating conditions for domestic apartment buildings. Results indicate that a PCM underfloor heating system can be constructed in the following order: () a 210 mm concrete slab, () a 20 mm cushioning material, () 40 mm of mortar including a 10 mm PCM thermal storage container, and () 40 mm of finishing mortar including wire mesh and hot water pipes. The temperature range of the PCM used for underfloor heating in domestic apartment buildings is 32–45°C. Experimental tests reveal that thermal storage performance of underfloor heating systems that apply 35, 37, 41, and 44°C as representative PCM temperatures is superior to existing systems.