Open Access iconOpen Access



Evaluation of Energy Efficiency Performance of Heated Windows

Hari Swarup Jammulamadaka1, Bhaskaran Gopalakrishnan2,*, Subodh Chaudhari3, Senthil Sundaramoorthy3, Akash Rajesh Mehta2, Roseline Mostafa2

1 Energy and Mineral Engineering, Pennsylvania State University, State College, PA 16801, USA
2 Industrial and Management Systems Engineering, West Virginia University, Morgantown, WV 26505, USA
3 Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

* Corresponding Author: Bhaskaran Gopalakrishnan. Email: email

Energy Engineering 2022, 119(1), 1-16.


Fenestration systems are widely used across the world. There is expansive research on window configurations, frames, and glazing technology, but not enough research has been published on reducing window heat loss through heat application to a pane. The presented study attempted to evaluate the performance of heated windows by developing an experimental setup to test a window at various temperatures by varying the power input to the window. Heated double pane window was installed in an insulated box. A temperature gradient was developed across the window by cooling one side of the window using gel-based ice packs. The other face of the window was heated by enabling power at different wattages through the window. The temperature of the inside and outside panes, current and voltage input, and temperature of the room and box were recorded. The data was used to calculate the apparent effective resistance of the window when not being heated vs. when being heated. The study concluded that, when window temperature was maintained close to the room temperature, the heated double pane window is effective in reducing heat loss by as much as 50% as compared to a non-heated double pane window. When temperature of the window was much higher than the room temperature, the heat loss through the window increased beyond that of a non-heated window. The issues encountered during the current stages of experiments are noted, and recommendations are provided for future studies.


Cite This Article

APA Style
Jammulamadaka, H.S., Gopalakrishnan, B., Chaudhari, S., Sundaramoorthy, S., Mehta, A.R. et al. (2022). Evaluation of energy efficiency performance of heated windows. Energy Engineering, 119(1), 1-16.
Vancouver Style
Jammulamadaka HS, Gopalakrishnan B, Chaudhari S, Sundaramoorthy S, Mehta AR, Mostafa R. Evaluation of energy efficiency performance of heated windows. Energ Eng. 2022;119(1):1-16
IEEE Style
H.S. Jammulamadaka, B. Gopalakrishnan, S. Chaudhari, S. Sundaramoorthy, A.R. Mehta, and R. Mostafa "Evaluation of Energy Efficiency Performance of Heated Windows," Energ. Eng., vol. 119, no. 1, pp. 1-16. 2022.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 1935


  • 907


  • 1


Related articles

Share Link