95474 20230914083250.0 doi 10.1016/j.egyr.2020.08.013 sideral 119528 ART-2020-119528 eng Sharifi, S. Comprehensive thermodynamic and operational optimization of a solar-assisted LiBr/water absorption refrigeration system 2020 Access copy available to the general public Unrestricted Absorption cooling systems have been investigated for many years due to their ability to use low-grade heat instead of electricity as the energy source. The aim of this work is to advance the performance of a single-effect Lithium bromide/water absorption cooling system. Taking the generator and evaporator temperatures as variables, the system is optimized to maximize exergetic and energetic efficiencies at different operational conditions using a multi-objective–multi-variable Genetic Algorithm. The Group Method of Data Handling neural network approach is adopted to derive correlations between the design variables and operational parameters. Finally, the system is coupled to evacuated tube solar collectors and compared to a similar system. The results reflect a maximum improvement in energetic and exergetic efficiencies of about 9.1% and 3.0%, respectively. This translates into savings of 187 dollars for every square meter of solar collector at present time. This improvement is achieved by decreasing the mean temperature of the generator by 6.2 °C and increasing the mean temperature of the evaporator by 1.6 °C. In the case of applying low-grade heat such as solar energy, it brings about both an improvement in the thermodynamic performances and a reduction in the generator temperature. info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.87 2020 ENERGY & FUELS 25 / 114 = 0.219 2020 Q1 T1 1.199 2020 Energy (miscellaneous) 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Nozad Heravi, F. Shirmohammadi, R. Ghasempour, R. Petrakopoulou, F. Romeo, L.M. Universidad de Zaragoza (orcid)0000-0001-7379-6159 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 6 (2020), 2309-2323 Energy Rep. Energy Reports 2352-4847 3308533 http://zaguan.unizar.es/record/95474/files/texto_completo.pdf Versión publicada 561468 http://zaguan.unizar.es/record/95474/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:95474 articulos driver 2023-09-13-10:50:56 ARTICLE