Abstract

PITA´-CANTOS, Lenin; GONZALEZ-BAYON, Juan José  and  MENENDEZ-PEREZ, Alberto. A parametric analysis of thermal performance of plane solar air heatersin forced regime. Ingeniería Mecánica [online]. 2018, vol.21, n.3, pp. 153-160. ISSN 1815-5944.

In this work the analysis of the energetic performance of flat solar air heaters with simple cover operating in forced circulation regime was developed. For the analysis, the collector was modelled and simulated with Computational Dynamic Fluid technique, using the Fluent 6.3code.The collector performance versus the change of design parameters (length, air canal height) and the change of operating conditions (the incident solar radiation and air velocity)was analyzed. The graphic dependence and correlations of hourly and daily collector thermal efficiency, of exit air temperature as function of the collector length, of the air canal height, of the air velocity and of solar incident radiation were carried out. The found correlations are useful for the designers of solar air heaters as tools to improve the design in function of desired aim, either higher exit air temperature, higher efficiency or any combination of these parameters

Keywords : air solar heater; forced convection; thermal efficiency; energetic performance.

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