Study of the effect of non-uniform flow distribution in the transient response of a system of flat plate solar collectors for hot water service
| Autor: | Juan von Wichmann, María Eugenia de |
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| Přispěvatelé: | López Silva, Ricardo Alberto, Universidad Carlos III de Madrid. Departamento de Ingeniería Térmica y de Fluidos |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid instname |
| Popis: | Flows in manifolds are extensively encountered in diverse fields of engineering, solar collectors among others. The division of fluids into streamlines by means of a manifold causes pressure changes in the headers due to wall friction and changing fluid momentum, which leads to non-‐ uniformity distribution of flow and thus, a decrease in the collector’s efficiency. In this project a numerical analysis of the flow distribution in a flat plate solar collector has been developed. The solution of the mathematical model was found with the use of the finite difference; thus, a computational code in Matlab was developed. Due to the difficulties of making experimental measurements, a hypothetical instantaneous Hot Water Service (HWS) system located in Leganés (Spain), consisting of a flat plate solar collector and a heat exchanger, was developed based on the regulations established in the “Código Técnico de la Edificación” (CTE). Once the necessary demand and flow of consumption for the HWS system was obtained, the flat plate solar collector was dimensioned according to the requirements of the system. Finally, all parameters found (mass flows, geometry of the solar collector and temperatures) are used as boundary conditions of the mathematical model, in that sense a study of the flow distribution inside the solar collector is conducted. Ingeniería Mecánica |
| Databáze: | OpenAIRE |
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