Comparison of energy consumption between non-inverter and inverter-type air conditioner in Saudi Arabia

Abstract

Interest for air-conditioning systems (ACs) has exponentially expanded worldwide throughout the most recent couple of decades. Countries with booming economies including Saudi Arabia report high growth of sales of room air conditioners. With the expanded (GDP) and warming climates, interest for room air-conditioning systems is required to additionally increment. Meeting the expanded need for electricity energy will be a challenge. Expanded utilization of energy-efficient air conditioners impactsly affects lowering the electricity demand. In an ordinary AC, the blower runs at a fixed speed and is either ON or OFF. In an inverter AC, the compressor is consistently on; however, power drawn relies upon the demand for cooling. The speed of the compressor is adjusted appropriately. In this paper, the energy consumption of non-inverter and an inverter AC of the same capacity was assessed in an average office room, under comparative operating conditions, to find the differences in the energy saving, Carbon Dioxide (CO2) emission, and power consumption of air conditioner. Energy consumption was measured for about 108 days, which is from July 16th to October 31st, 24/7, and compared. The experiment is conducted with the same conditions and same capacity air conditioners (18,000 BTU). Results show that the day-by-day normal vitality utilization, the inverter will save up to 44% of electrical consumption compared to a non-inverter of 3471 kWh/year and 6230 kWh/year respectively. Furthermore, the Total Equivalent Warming Impact (TEWI) analysis shows that inverters can save 49% of CO2 emissions.

Energy Efficiency and Feasibility Analysis of Solar Power Generation Using Hybrid System of an Educational Institution in Malaysia

“…The analysis results confirmed that air conditioners were the highest energyconsuming equipment in all the academic departments studied. These results support the findings of a study conducted by previous authors [43][44][45][46][47] where air conditioning systems consume the highest electrical energy in the office or educational building. According to Tables 4 and 5 and Figure 1, From the graph, the air-conditioning and laboratory equipment at MED has a high impact on energy consumption of almost 230,000 kWh and energy bills of more than RM 80,000 per year.…”

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“…AC non-inverter memiliki kompresor yang hanya berfungsi dengan satu kecepatan, yaitu menyala dengan kecepatan penuh atau mati. Ketika suhu ruangan mencapai suhu yang diinginkan, maka kompresor akan mati, dan ketika suhu ruangan meningkat kembali, maka kompresor akan menyala kembali dengan kecepatan penuh [14], [8]. Pada AC inverter kompresor dapat diatur kecepatannya sesuai dengan kebutuhan pendinginan ruangan.…”

“…Sebuah penelitian lain yang dilakukan pada iklim di Arab Saudi membandingkan efisiensi energi dari berbagai jenis sistem AC yang berbeda dengan memperhatikan konsumsi energi dan kinerja sistem dari empat jenis AC yang berbeda. Hasil penelitian menunjukkan bahwa jenis AC dengan sistem pengaturan suhu otomatis dan teknologi inverter memiliki efisiensi energi yang lebih baik [8] [9]. Membandingkan variabel seperti daya, kapasitas pendinginan, konsumsi energi tahunan, biaya listrik, dan efisiensi pada berbagai merek AC akan memberikan informasi yang transparan tentang efisiensi AC yang tersedia di pasaran [10].…”

Evaluating Refrigerant Purity Characteristics: An Experimental Approach to Assess Impact on Vapor-Compression Refrigeration System Performance

“…These deviations induce several irreversibilities within the system, necessitating additional power input for the compressor [3]. Extensive research is therefore dedicated to the reduction of power consumption in VCRS [4][5][6][7][8], although energy efficiency alone does not dictate the performance of these systems. The system's capacity to extract heat from the space is equally crucial, an aspect captured by the Coefficient of Performance (COP).…”