Modeling and experimental validation of the solar loop for absorption solar cooling system using double glazed collectors

Abstract : Solar cooling applied to buildings is without a doubt an interesting alternative for reducing energy consumption in traditional mechanical steam compression air conditioning systems. The study of these systems should have a closely purely fundamental approach including the development of numerical models in order to predict the overall installation performance. The final objective is to estimate cooling capacity, power consumption, and overall installation performance with relation to outside factors (solar irradiation, outside temperature...). The first stage in this work consists of estimating the primary energy produced by the solar collector field. The estimation of this primary energy is crucial to ensure the evaluation of the cooling capacity and therefore the cooling distribution and thermal comfort in the building. Indeed, the absorption chiller performance is directly related to its heat source. This study presents dynamic models for double glazing solar collectors and compares the results of the simulation with experimental results taken from our test bench (two collectors). In the second part, we present an extensive collector field model (36 collectors) from our solar cooling installation at The University Institute of Technology in St Pierre, Reunion Island as well as our stratified tank storage model. A comparison of the simulation results with real scale solar experimental data taken from our installation enables validation of the double glazing solar collector and stratified tank dynamic models.
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Olivier Marc, Jean-Philippe Praene, Alain Bastide, Franck Lucas. Modeling and experimental validation of the solar loop for absorption solar cooling system using double glazed collectors. Applied Thermal Engineering, Elsevier, 2010, 31 (2-3), pp.268. ⟨10.1016/j.applthermaleng.2010.09.006⟩. ⟨hal-00692335⟩

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