Performance of Solar Hybrid Cooling Operated by Solar Compound Parabolic Collectors under Weather Conditions in Riyadh, Kingdom of Saudi Arabia  
[PERSON]  
1 The scientific aim of this work is to encourage energy conservation. This article offers a fresh perspective on renewable energy in the air conditioning sector, the country's economic growth, and environment-friendly techniques to overcome global warming challenges. In this research, a solar vapor absorption refrigeration (SVAR) system was combined with a conventional vapor compression refrigeration (VCR) system to analyze their combined performance, employing a compound parabolic collector (CPC). The goal was to assess the performance of a solar hybrid cooling system using this non-tracking solar collector. CPC was validated for heat output with 2.9% uncertainty by utilizing an engineering equation solver (EES). Other system components were also validated with EES and then extended to a larger-capacity solar hybrid cooling system. The results of this research indicate that CPC is effective in providing the required heat to SVAR throughout the year without any tracking, and the integration of SVAR in series with the VCR condenser produces 83% higher COP than the system that integrates VCR with the condenser of the SVAR system for Riyadh. The configuration results in high values of exergy COP and an efficiency of 88% and 84%, respectively, increases the cooling capacity of the VCR by 68%, and decreases the carbon emission by 166.4%. 1 The research is organized as follows. In this work, we describe the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the research and the every year by 4-7% despite the relatively small population. Saudi Arabia uses 16% of its total energy production to generate electricity, a consumption largely influenced by the use of air conditioning systems. Air conditioning in the KSA uses 70% of its electricity production [4]. The price for one barrel of oil in the international market is around Saudi Riyal (SR) 300 as of June 2023 [5]. The KSA is spending almost SR40 billion/per year on air conditioning, which is a huge amount. An enhancement in the performance of the air conditioning system and the implementation of an inexpensive source of heat can help in utilizing this amount to support the kingdom economically and reduce the emission of environmentally polluting gases from conventional air conditioning systems. The KSA is presently the fifth largest consumer of oil but in 47 th position in terms of population. The KSA generates more than 99% of its electricity from fossil fuels [6]. It is considered one of the important contributors to global climate change in several ways, such as producing, supplying, and subsidizing fossil fuel. The KSA witnesses early climate change since it has an arid geography and seasonal factors [7]. Other factors include the increase in prices for local electricity consumption due to heavy usage, etc. As the average temperatures of the earth's atmosphere go up globally and countries continue to develop, the global demand for air conditioning is projected to triple by 2050 [8]. A report by the Ministry of Energy, KSA, specifies that building energy in the KSA's residential, commercial, and government sectors uses 73% of the generated power; of this total, 70% is used for air conditioning [9]. Air conditioning has become not just a luxury and comfort but an important part of healthy survival. The use of air conditioning is growing faster than any other energy-consuming technology globally and contributes to over 10% of greenhouse gas emission [8].