EER Improvement for Room Air-Conditioners in Saudi Arabia


This paper demonstrates the possibility of achieving a higher Energy Efficiency Ratio (EER) for Room Air Conditioners (RACs) that complies with the Saudi energy efficiency standards and satisfies the energy conservation requirements for the Saudi Building Code (SBC). This study considers several design options for improving the performance and efficiency of the RAC in comparison with a baseline RAC unit manufactured by Al-Zamil Company of Saudi Arabia. These design options include the number of condenser and evaporator rows, fins density, frontal area, compressor types, and refrigerant types. The experimental data obtained is through testing the units in Calorimeter according to standard ASHRAE-16. Also, the uncertainty in measurements and its propagation are included in this study. This paper reports the results of a set of measurements carried out on a modified RAC and compares them with the tested baseline RAC unit at similar load conditions. The experimental results indicate the effectiveness of increasing the number of condenser rows in comparison with other design options considered for achieving higher EER for RACs.

Share and Cite:

A. Al-Shaalan, "EER Improvement for Room Air-Conditioners in Saudi Arabia," Energy and Power Engineering, Vol. 4 No. 6, 2012, pp. 439-446. doi: 10.4236/epe.2012.46058.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] ANSI/ARI Standard 210/240, “Standard in Unitary Air Conditioning and Air Source Heat Pump Equipment,” Air Conditioning and Refrigeration Institute, Michigan, 2003.
[2] J. Adnot, M. Orphelin, C. Lopes and P. Waide, “Limiting the Impact of Increasing Cooling Demand in the European Union: Results from a Study on Room Air-Conditioner Energy Efficiency,” Proceedings: 2000 ACEEE Summer Study on Energy Efficiency in Buildings, Washington, pp. 1-12.
[3] J. Li, “Bilateral Collaboration on Energy Efficiency in Buildings,” Institute du Development Durable et des Relations Internationals (IDDRI), Paris, February 2008.
[4] R. Faramarzi, et al., “Performance Evaluation of Typical Five-Ton Roof Top Air Conditioning Units under High Ambient Temperatures,” Refrigeration and Thermal Test Center, Southern California Edison, 2004.
[5] J. I. Jang and S. Jin, “An Experimental Comparison of Energy Efficiency Indicators, EER and SEER in Residential Air Conditioners,” LG Electronics, London, 2006.
[6] S. W. Stewart, “Enhanced Finned-Tube Condenser Design and Optimization,” Ph.D. Dissertation, Georgia Institute of Technology, Atlanta, 2003.
[7] D. Fridley, G. Rosenquist, J. Lin, L. Aixian, X. Dingguo and C. Jianhong, “Technical and Economic Analysis of Energy Efficiency of Chinese Room Air Conditioners,” LBNL-45550 U.S. Department of Energy under Contract No. DE-AC03-76SF00098, 2001.
[8] T. M. I. Mahlia and H. H. Masjuki, “Cost-Efficiency Analysis in Support of Energy Efficiency Standards for Room Air Conditioners,” Department of Mechanical Engineering, University of Malaya, Kuala Lumpur, 2002.
[9] J. P. Proctor, T. D. Downey, C. Boecker, Z. Katznelson, G. Peterson and D. O’Neal, “Investigation of Peak Electric Load Impacts of High SEER Residential HVAC Units,” Pacific Gas and Electric Company Research and Development Department, San Ramon, 1996.

Copyright © 2023 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.