提高沙特阿拉伯住宅空调系统能源效率的途径

Abdulaziz M. Alotaibi, Taha K. Makhdoom, A. Alquaity
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引用次数: 0

摘要

在沙特阿拉伯,住宅用电量接近 50%,主要由空调(AC)驱动。本研究通过三种方案探讨了到 2030 年的潜在节能和二氧化碳减排效果:一切照旧情景 (BAU)、持续改进情景 (CIS) 和加速改进情景 (AIS)。BAU 情景假定在 2030 年前保持目前 11.8 BTU/Wh 的能效比。CIS 假设新空调设备的能效比每 2 年或 5 年提高 5%,而 AIS 假设能效比每 2 年或 5 年提高 10%。此外,在三种方案中,还估算了采用新制冷剂(R32)的不同水平可能带来的节能和减排效果。最后,针对电网排放系数的两种极端情况,计算了每种情景下的二氧化碳减排量。与 2020 年的能源消耗数据相比,"一切照旧 "情景预测 2030 年可节约高达 17.7 太瓦时的能源。与 BAU 情景相比,间隔 2 年的 AIS 在 2030 年可额外节约 10.1 太瓦时的能源,十年内可累计节约 37.1 太瓦时的能源。与 "一切照旧 "方案相比,即使是间隔 5 年的 CIS,也能在 2030 年额外节省 1.69 太瓦时的能源,累计节省 5.1 太瓦时的能源。相比之下,在最佳情况下,引入新制冷剂可累计节省 10.2 太瓦时的能源。这些研究结果强调了提高住宅空调系统 EER 作为能效政策优先事项的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pathways Towards Improving the Energy Efficiency of Residential Air – Conditioning Systems in Saudi Arabia
In Saudi Arabia, the residential electricity consumption approaches 50%, primarily driven by air conditioners (AC). This study explores the potential energy savings and CO2 emission reductions up to 2030 through three scenarios: Business as Usual (BAU), Continuous Improvement Scenario (CIS), and Accelerated Improvement Scenario (AIS). BAU scenario assumes that the current Energy Efficiency Ratio (EER) of 11.8 BTU/Wh is maintained until 2030. CIS considers a 5% EER improvement in new AC stock every 2 or 5 years, while AIS assumes a 10% improvement in EER at the same intervals. Additionally, energy savings and emission reductions possible from varying adoption levels of a new refrigerant (R32) are estimated for three scenarios. Lastly, the CO2 emission reduction under each scenario is computed for two extreme cases of grid emission factor. BAU scenario predicts energy savings of up to 17.7 TWh in 2030 compared to 2020 energy consumption figures. AIS with 2 year intervals results in additional energy savings of 10.1 TWh in 2030 and cumulative energy savings of 37.1 TWh over a decade compared to the BAU scenario. Even CIS with 5 year intervals yields additional energy savings of 1.69 TWh in 2030 and 5.1 TWh cumulatively compared to the BAU scenario. In comparison, the introduction of the new refrigerant results in cumulative energy savings of 10.2 TWh in the best-case scenario. These findings emphasize the importance of enhancing the EER of residential AC systems as a priority in energy efficiency policy.
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