Open Access Open Access  Restricted Access Subscription or Fee Access

Thermal Characterization of Commercial Electric Radiators

Taimoor Asim, Karina Zala, Rakesh Mishra, Fiona Conor, Scott Conor, Naeem Mian, Blaise Nsom


Electric radiators with a storage element are commonly used to provide heating in cold weather. The thermal performance of an electric radiator is dependent on a number of key design features such as the core material, shape of radiator’s outer surfaces, gap between the core and the outer surfaces. The effectiveness of an electric radiator can be improved by optimally designing these key features. Researchers around the world have been working to achieve this using a range of different methodologies. In the present study, two commercial electric radiator models have been considered for their thermal characterisation during their individual heating and cooling cycles. This has been carried out in order to evaluate the thermal behaviour of the two models. To achieve this aim, a purpose built test rig has been developed and the thermal testing has been carried out in a controlled environment. A thermal camera has been used to take thermal images of the front surfaces of the two models at every 5 minutes’ interval enabling quantification of temperature field. It has been observed that the two electric radiator models considered depict different thermal characteristics. The heat dissipation characteristics of both the models have also been noticed to be different to each other.


Electric Radiator; Thermal Camera; Surface Temperature; Radiator Core

Full Text:



Numerical model and experimental analysis of the thermal behavior of electric radiant heating panels. Applied Sciences. Volume: 8. 206.

Bassily, A.M. Colver, G.M. (2004). Modelling and performance analysis of an electric heater. International Journal of Energy Research. Volume: 28. 1269 – 1291.

Ning, B. Schiavon, S. Bauman, F.S. (2017). A novel classification scheme for design and control of radiant system based on thermal response time. Energy Build. Volume: 137. 38 – 45.

Garavand, A.T. Omid, A. Ahmadi, A. Mohtasebi, S.S. (2017). Intelligent fault diagnosis of cooling radiator based on thermal image processing and artificial intelligence techniques. Modares Mechanical Engineering. Volume: 17. 240 – 250.

Carli, M.D., Peron, F., Romagnoni, P.C., Zecchin, R., (2000), Computer simulation of ceiling radiant heating and cooling panels and comfort evaluation in proc. of International Congress Healthy Buildings, Espoo, Finland, 6–10 August, 623 – 628.

Freegah, B., Asim, T., Mishra, R., Zala, K., (2015), Numerical Investigations on the Effects of Transient Heat Input and Loading Conditions on the Performance of a Single-phase Closed-loop Thermo-syphon in proc. of 42nd National Conference on Fluid Mechanics and Fluid Power, 14th – 16th December, Surathkal, India.

Freegah, B., Asim, T., Mishra, R., (2015), Effect of solar heat flux and thermal loading on the flow distribution within the riser pipes of a closed-loop solar thermo-syphon hot water system in proc. of International Congress on Condition Monitoring and Diagnostic Engineering Management, 1st – 4th December, Buenos Aires, Argentina.

Asim, T. Oliveira, A. Charlton, M. and Mishra, R. (2019). Improved Design of a Multi-Stage Continuous-Resistance Trim for minimum Energy Loss in Control Valves. Energy. Volume: 174. 954 – 971.

Asim, T. Oliveira, A. Charlton, M. and Mishra, R. (2019). Effects of the Geometrical Features of Flow Paths on the Flow Capacity of a Control Valve Trim. Petroleum science and Engineering. Volume: 172. 124 – 138.

Asim, T. Algadhi, A. and Mishra, R. (2018). Effect of Capsule Shape on Hydrodynamic Characteristics and Optimal Design of Hydraulic Capsule Pipelines. Journal of Petroleum Science and Engineering. Volume: 161. 390 – 408.

Asim, T. Charlton, M. and Mishra, R. (2017). CFD based Investigations for the Design of Severe Service Control Valves used in Energy Systems. Energy Conversion and Management. Volume: 153. 288 – 303.

Asim, T. and Mishra, R. (2017). Large Eddy Simulation based Analysis of Complex Flow Structures within the Volute of a Vaneless Centrifugal Pump. Sadhana. Volume: 42. 505 – 516.

Asim, T. and Mishra, R. (2016). Optimal design of hydraulic capsule pipelines transporting spherical capsules. Canadian Journal of Chemical Engineering. Volume: 94. 966 – 979.

Asim, T. and Mishra, R. (2016). Computational Fluid Dynamics based Optimal Design of Hydraulic Capsule Pipelines Transporting Cylindrical Capsules. International Journal of Powder Technology. Volume: 295. 180 – 201.

Asim, T. Mishra, R. Abushaala, S. and Jain, A. (2016). Development of a Design Methodology for Hydraulic Pipelines Carrying Rectangular Capsules. International Journal of Pressure Vessels and Piping. Volume: 146. 111 – 128.

Flir A655sc Datasheet. MathWorks