Experimental and numerical study on flat plate and evacuated tube collectors

Abstract

Consulta en la Biblioteca ETSI Industriales (8814)

[EN] This thesis reports a study on different types of collectors, both flat plate collectors and evacuate tube collectors. We will study two types of flat plate collectors. The first is a flat plate collector with copper tubes, aluminium plate and coated with a selective paint and the second is a flat plate collector with copper tubes, copper plate and black paint. In the first case, the aim is to compare the performance of the flat plate collector with copper tubes, aluminum plate and coated that of a selective paint with a flat plate collector with copper tubes, copper plate and coated with a selective paint. It would be very interesting from an economic point of view that the performances are close similar, because aluminum is less expensive than copper. Moreover, stagnation tests will be done to check the behavior of the collectors when they work at high temperature. With respect to the flat plate collector with copper tubes, copper plate and black paint, we will analyze how the ambient temperature and the tilt angle influence on the performance of this collector. Finally, we will develop a mathematical model to predict the stationary behavior of evacuated tube collectors. An important step will be to compare experimental data from a database with the predicted efficiency curve obtained from the simulation.