Numerical Model and Experimental Analysis of the Thermal Behavior of Electric Radiant Heating Panels

Electric radiant heating panels are frequently selected during the design phase of residential and industrial heating systems, especially for retrofit of existing buildings, as an alternative to other common heating systems, such as radiators or air conditioners. The possibility of saving living and working space and the ease of installation are the main advantages of electric radiant solutions. This paper investigates the thermal performance of a typical electric radiant panel. A climatic room was equipped with temperature sensors and heat flow meters to perform a steady state experimental analysis. For the dynamic behavior, a mathematical model was created and compared to a thermographic measurement procedure. The results showed for the steady state an efficiency of energy transformation close to one, while in a transient thermal regime the time constant to reach the steady state condition was slightly faster than the typical ones of hydronic systems.

[1]  Michele De Carli,et al.  DIGITHON: A numerical model for the thermal balance of rooms equipped with radiant systems , 2012 .

[2]  Hl Henk Schellen,et al.  Church heating and cultural heritage conservation : guide to the analysis of pros and cons of various heating systems , 2006 .

[3]  P. R. Bevington,et al.  Data Reduction and Error Analysis for the Physical Sciences , 1969 .

[4]  Jean Lebrun,et al.  THERMAL MODELING OF THE COOLING CEILING SYSTEMS AS COMMISSIONING TOOL , 2009 .

[5]  Jesper Kragh,et al.  Modelling floor heating systems using a validated two-dimensional ground-coupled numerical model , 2005 .

[6]  Paolo Bison,et al.  Thermal response measurement of building insulating materials by infrared thermography , 2016 .

[7]  Amit Khanna.  Development and Demonstration of a Performance Test Protocol For Radiant Floor Heating Systems , 2006 .

[8]  Vedat S. Arpaci,et al.  Conduction Heat Transfer , 2002 .

[9]  Ana Tejero-González,et al.  Experimental study on the cooling capacity of a radiant cooled ceiling system , 2012 .

[10]  Jacques Miriel,et al.  Radiant ceiling panel heating–cooling systems: experimental and simulated study of the performances, thermal comfort and energy consumptions , 2002 .

[11]  Baisong Ning,et al.  A novel classification scheme for design and control of radiant system based on thermal response time , 2017 .

[12]  Xu Xu,et al.  Experimental study of under-floor electric heating system with shape-stabilized PCM plates , 2005 .

[13]  Łukasz Bratasz,et al.  The impact of electric overhead radiant heating on the indoor environment of historic churches , 2007 .

[14]  Carosena Meola,et al.  Infrared Thermography in the Architectural Field , 2013, TheScientificWorldJournal.

[15]  Elena Lucchi,et al.  Applications of the infrared thermography in the energy audit of buildings: A review , 2018 .

[16]  Ermanno G. Grinzato.  Humidity and air temperature measurement by quantitative infrared thermography , 2010 .

[17]  Bijan Farhanieh,et al.  A parametric study on radiant floor heating system performance , 2006 .

[18]  Bjarne W. Olesen,et al.  History of Radiant Heating & Cooling Systems: Part 1 , 2010 .

[19]  J. Jaeger,et al.  Conduction of heat in a solid with a power law of heat transfer at its surface , 1950, Mathematical Proceedings of the Cambridge Philosophical Society.

[20]  Jungki Seo,et al.  Thermal performance analysis according to wood flooring structure for energy conservation in radiant floor heating systems , 2011 .

[21]  G. Cadelano,et al.  Monitoring of historical frescoes by timed infrared imaging analysis , 2015 .