Abstract
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.
Highlights
Several studies have shown how electric peak loads are primarily the result of air conditioning use
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)
Five different methods are used in this project in order to achieve and develop more economic and energy efficient RACs: 1) A comprehensive review and compliance with the specifications and requirements imposed by the Saudi Arabian Standards Organization (SASO) for safe and efficient room air conditioners (RACs); 2) An intensive assessment of both locally and internationally manufactured RACs for the purpose of collecting information about their design and performance levels in order to evaluate how well they conform to Saudi Standards; 3) A review of relevant literature from other countries as well as an examination of related documents from the Internet; 4) A practical study, analysis, and testing of RACs in order to reach the levels set forth by the Saudi Standards for the EER
Summary
Several studies have shown how electric peak loads are primarily the result of air conditioning use. Along with lighting and refrigerators, air conditioners rank among the top three huge power users of electricity in households. Peak power load occurs during the summer months as air conditioners offer a more comfortable living environment. Both air conditioner design and the way in which they are activated during hot summer afternoons combine to create serious electric capacity difficulties. In Saudi Arabia, air conditioners are the principal cause of peak electrical demand during hot summer months because the majority of air conditioning systems run on electricity. The sweltering heat in the Kingdom, averaging 45 ̊C, has bolstered the necessity for cooling residential as well as non-residential buildings
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