Simulation Study on Comparison of Thermal Comfort during Heating with All-Air System and Radiant Floor System
Radiant heating systems work fundamentally differently from air systems by taking advantage of both radiant and convective heat transfer to remove space heating load. There are rare studies on differences of heating systems between all-air system and radiant floor system. This paper uses the method of simulation based on state-space to calculate the indoor temperature and wall temperature of each system and shows how the dynamic heat transfer in rooms conditioned by a radiant system is different from an air system. Then this paper analyses the changes of indoor temperature of these two systems, finding out the differences between all-air heating system and radiant floor heating system to help the designer choose a more suitable heating system.
 G.P. Henze, C. Felsmann, D.E. Kalz, S. Herkel. Primary energy and comfort performance of ventilation assisted thermo-active building systems in continental climates. Energy and Buildings, 40 (2) (2008), pp. 99-111
 Z. Tian, J.A. Love. Energy performance optimization of radiant slab cooling using building simulation and field measurements. Energy and Buildings, 41 (3) (2009), pp. 320-330.
 Pan Li, Xu Qiang, Qiu Tong, Ni Gang. Study on Heat Storage Performance of Internal and External Thermal Insulation Walls in Intermittent Energy Mode (J). Heating Ventilating & Air Conditioning, 2014,44(07):59-62 + 105.
 Jingjuan (Dove) Feng, Fred Bauman, Stefano Schiavon. Experimental comparison of zone cooling load between radiant and air systems (J). Energy and Buildings. 2014(84):152-159.
 Tianzheng Hong, Yi Jiang. A New Multizone Model for the Simulation of Building Thermal Performance (J).Building & Environment, 1997(03).
 Tomasz Cholewa, Rafał Anasiewicz, Alicja Siuta-Olcha, Mariusz A. Skwarczynski. On the heat transfer coefficients between heated/ cooled radiant ceiling and room (J) Applied Thermal Engineering, 2017 (117):76-84.
 Jun Shinoda, Ongun B. Kazanci, Shin-ichi Tanabe, Bjarne W. Olesen. A review of the surface heat transfer coefficients of radiant heating and cooling systems (J). Building and Environment. 2019(159):106-156.