## 1 Introduction
[13] optimized the performance of a solar cooling system that includes four absorption units Climatewell CW10, these using LiBr-H\({}_{2}\)O (80 kW total cooling capacity) and 170 m\({}^{2}\) area of Unisol CP1-TIM flat plates, this system was installed in Almeria, Spain. [PERSON] et al. [14] reported the experimental air-cooled absorption prototype that uses LiBr-H\({}_{2}\)O (3.8 kW cooling capacity). The solar system consisted of 48 m\({}^{2}\) of flat-plate collectors. The COP was around 0.6, which represents about 85% of the cycle normal capacity. [PERSON] et al. [15] analyzed the performance of a solar cooling system in Alicante, Spain. The Yazaki absorption chiller uses LiBr-H\({}_{2}\)O and offers a cooling capacity of 17.6 kW. The system was driven with a flat plate collector field with 38.4 m\({}^{2}\). According to with the results, the average solar energy received was 7.14 kW h per square meter of collector area was the average solar incident, the energy transfer to the storage tank was calculated of 29% and the average COP was 0.691. [PERSON] et al. [16] evaluated a LiBr-H\({}_{2}\)O absorption chiller of 8 kW cooling capacity installed in Shanghai Jian Tong University. The solar system consists of evacuated collectors with a compound parabolic collector (96 m\({}^{2}\)) and a storage tank with a volume capacity of 3 m\({}^{3}\). According to the results, the average solar efficiency was 0.46, the cooling capacity was calculated as 4.5 kW, and a COP of 0.32 was calculated considering the 8 h of the test length. [PERSON] et al. [17] analyzed the performance of an absorption cooling system (LiBr-H\({}_{2}\)O) driven by solar collectors, this system was adopted in Changle, Shandong in China. The study was divided into three groups of solar collectors that used gravity assisted pipe and horizontal heat pipe evacuated with 1020 m\({}^{2}\) total area. The air-conditioning system was operated during a period of 10:00 to 14:00, the temperature achieved by the collectors was in a range from 56 to 85.8 \({}^{\circ}\)C and the chilled water temperature was reported in the range from 10 to 18 \({}^{\circ}\)C. The results showed the COP calculated varied from 0.28 to 0.34 when the efficiencies for the solar collector were between 40-45%. [PERSON] et al. [18] reported the performance of an absorption cooling system operating with a NaOH-H\({}_{2}\)O mixture and using as a hybrid heat source a parabolic trough plant coupled with a low enthalpy geothermal heat system, the results showed the average experimental storage tank temperature achieved by the parabolic trough plant was 93.8 \({}^{\circ}\)C and the COP was calculated as 0.71, under design conditions. Regarding absorption cooling systems (ACS), until now there has been a couple of working mixtures that have been widely used in commercial and experimental units: the mixture water-lithium bromide (H\({}_{2}\)O-LiBr) and the mixture ammonia-water (NH\({}_{3}\)-H\({}_{2}\)O), nevertheless, there are several well-known limitations related to their use, this fact has motivated the development of many studies proposing the use of not-conventional mixtures. Regarding the use of alternative mixtures, although the lithium chloride-water (LiCl-H\({}_{2}\)O) mixture was proposed many years ago as an alternative mixture in absorption systems, recently, several research groups renewed their interest in the use of this mixture. Some of those studies are the following. [PERSON] et al. [19] carried out an energetic and exergetic comparison of the LiCl-H\({}_{2}\)O and LiBr-H\({}_{2}\)O working pairs in a solar absorption cooling system. The modeled system consisted of flat plate collectors, a storage tank, and a single effect absorption cooling system. Both mixtures were analyzed at different ambient and heat source temperatures. The results showed that the LiCl-H\({}_{2}\)O pair showed a better performance than the LiBr-H\({}_{2}\)O pair in all the studied cases.