International Journal of Energy Engineering          
International Journal of Energy Engineering(IJEE)
Frequency: Yearly
Editor-in-Chief: Prof. Sri Bandyopadhyay(Australia)
Effect of Different Operating Variables on Energy Consumption of Household Refrigerator
Full Paper(PDF, 568KB)
This research work presents the experimental investigation of the effects of number of door opening; duration of door remaining open, ambient temperature and thermal load on the energy consumption of a household refrigerator. The experiments were conducted under the condition that number of door opening varied from 2 to 8 times per hour whereas the duration of door remaining open varied from 10 to 40 sec. The test has been carried out under the condition that the ambient temperature varied from 20 to 330C at different thermal loads varying from 0.001 m3 to 0.007 m3 of fresh water; each experimental run time was 6 hours. From the test results, energy consumption of refrigerator with door opening was found to increase compared to the same product without door opening. Depending on the number of door opening about 7% to 30% more energy consumption has been observed as compared to closed door condition. The test result also shows that a significant amount of energy consumption increases because the time of door remaining open increases. Depending on the time of door remaining open the energy consumption varied from 3% to 20%. The experimental result also confirms that the energy consumption increases by about 15% to 53% because the ambient temperature increases from 20 to 330C. The test result also proves that a significant amount of energy consumption increases because cabinet load (thermal load) increased. Depending on the different thermal loads about 18% to 59% more energy consumption has been observed as compared to non-load condition. If the users be serious, a significant amount of energy could be saved with proper utilizing of the refrigerator-freezer.
Keywords:Household Refrigerator; Door Opening; Ambient Temperature; Thermal Load; Energy Consumption
Author: Md. Imran Hossen Khan1, Hasan M.M. Afroz1, Md. Abdur Rohoman1, Mohammad Faruk1, Mohammad Salim1
1.Department of Mechanical Engineering, Dhaka University of Engineering & Technology Gazipur, Gazipur-1700, Bangladesh
  1. H.H. Masjuki, R. Saidur, I.A. Choudhury, T.M.I Mahlia, A.K. Ghani, and M.A. Maleque, “The applicability of ISO household refrigerator-freezer energy test specifications Malaysia,” Energy 26 (7), 723-737, 2001.
  2. Energy Information Administration (EIA), “Home energy use and costs: Residential Energy Consumption Survey”, 2004, ( emeu/ rec s/contents.html.)
  3. D.Y. Liu, W.R. Change and J.Y. Lin, “Performance comparison with effect of door opening on variable and fixed frequency refrigerators-freezers,” Appl. Therm. Eng., 24 (14-15), 2281-2292, 2004.
  4. T.M.I. Mahlia, H.H. Masjuki, R. Saidur, I.A. Choudhury, and A.R. NoorLeha, “Projected electricity savings from implementing minimum energy efficiency standard for household refrigerators in Malaysia,” Energy 28 (7), 751-754, 2003.
  5. E. Vine, and P. Waide, “Evaluating the impact of appliance efficiency labeling programs and standards: process, impact, and market transformation evaluations,” Energy 26, 1041–1059, 2001.
  6. P. Waide, B. Lebot, and M. Hinnells, “Appliance energy standards in Europe,” Energy and Buildings, 26, 45–67, 1997.
  7. I. Turiel, “ Present status of residential appliance energy efficiency standards -an international review,” Energy and Buildings 26, 5–15, 1997.
  8. O.E. Laguerre, Derens and B. Palagos, “Study of domestic refrigerator temperature and analysis of factors affecting temperature” A French survey, Int. J. Ref. 25 (5), 653-659, 2002.
  9. Meier, A.K. and Jansky, R.1993. Field performance of residential refrigerators. A comparison with the laboratory test, ASHRAE, Trans., 99 (1): 704-713
  10. C.L. Gage, “Field usage and its impact on energy consumption of refrigerator-freezers,” ASHRAE, Trans., 101 (2): 1201-1210, 1995.
  11. R. Saidur, H.H. Masjuki and I.A. Choudhury, “Role of ambient temperature, door opening, thermostat setting position and their combined effect on refrigerator-freezer energy consumption,” Energy Conversation Management 43 (6), 845-854, 2002.
  12. M. Hasanuzzaman, R. Saidur and H.H. Masjuki, “Investigation of energy consumption and energy savings of refrigerator-freezer during open and closed door condition,” Journal of applied science, 8 (10): 1822-1831, 2008.