Improvement of Conventional Electric Heater to Reduce Energy Loss and Its Performance Test

Abstract

With rapid growth of population and urbanization, the energy demand is increasing day by day. Electrical energy is an important component for developing economy. Only 40% of our population has access to electricity. Due to shortage in supply, it becomes important to conserve electricity. Although there is restriction to use electric heaters, still it is being used in small scale in halls, hostels, messes etc. Conventional electric heater losses heat by radiation through bottom and by conduction through the mortar. Heating is not very effective, if the air gap between the utensils' bottom and coil plate is not optimized. A comprehensive study has been conducted to improve the conventional electric heater to reduce energy loss. Heat loss through the bottom and mortar is reduced by putting thermal insulation and a reflective coating. Three test specimens have been used to carry out the test with an improved heater and a conventional heater. The results reveal that energy can be saved by 35%, 30% and 17% for boiling water, cooking rice and red lentil respectively. Also, aluminum sheet is used instead of white cement and thermal insulation to make the construction simpler and the performance test has been carried out. It is found that when glass wool with white cement is used, save energy is around 30% whereas the same is around 28% when only aluminum sheet is used. Thus, by providing thermal insulation and reflective coating the heat losses from an electric heater can be reduced significantly.

Keywords

• Electric heater
• Thermal Insulation
• Reflective coating
• Cooking time
• Energy conservation

How to cite

Angkush Kumar Ghosh, Md. Mostofa Hossain (2016). Improvement of Conventional Electric Heater to Reduce Energy Loss and Its Performance Test. Sonargaon University Journal, 1(2), 55–65.

@article{ghosh20165,
  title   = {Improvement of Conventional Electric Heater to Reduce Energy Loss and Its Performance Test},
  author  = {Angkush Kumar Ghosh and Md. Mostofa Hossain},
  journal = {Sonargaon University Journal},
  volume  = {1},
  number  = {2},
  pages   = {55--65},
  year    = {2016},
  issn    = {2518-3125},
  url     = {https://su.edu.bd/journal/volume-1-number-2/improvement-of-conventional-electric-heater-to-reduce-energy-loss-and-its}
}