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Underfloor Heating System Essay

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Modelling and Performance Analysis of Underfloor Heating System Supplied from a Heat Pump

Muhammad Akmal1, Brendan Fox2, Damian Flynn3 and D. John Morrow2
1 Abu Dhabi University, Abu Dhabi, UAE
2 Queen’s University Belfast, Northern Ireland, UK
3 University College Dublin, Republic of Ireland makmal01@qub.ac.uk Abstract- This paper describes the thermal capacity and thermal inertia of the underfloor heating system supplied from a heat pump. A MATLAB/SIMULINK based thermal model of the system have been developed and presented with detailed mathematical equations. For this purpose, experimental results and actual measurements are used to model the energy storage and temperatures. This model is used to find building temperature variations, heat energy production, electrical energy consumption, coefficients of performance (both real-time and average) based on different control strategies for demand side management. The developed model includes the effect of thermal storage in the underfloor heating arrangement as well as the thermal mass of the building itself. Heat loss calculations were carried out to develop this model. The paper also employs different control strategies for …show more content…

The benefit is that a large portion of heat is extracted from outside air or ground instead of using a fuel source. Underfloor heating provides a uniform temperature over the floor, in contrast with concentrated heaters. The efficiency of underfloor heating is also better than radiator-based heaters because less heat is rejected from the roof [1]. Underfloor heating requires low temperature water (35 oC to 45 oC) as compared to radiators (60 oC and above). The former is the range where heat pumps have greater efficiency. Hence, underfloor heating with heat pumps is a suitable combination

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