Category: EuroSun2008-11

Energy balance model

The energy balance is considered for each component of the CPV receiver: Tc, Tvb and the fluid, Tf and Tfo. Some geometrical characteristics of the CPV receiver and the silicone oil properties are given in Table 1. 3.1. Solar energy model The irradiance absorbed by the vessel top, solar cells and vessel bottom are given […]

What is GIS and why?

The GIS (Geographic Information System) is a tool for computational treatment of geographical data and their associated data banks. It can be seen as a system of support for decision that unites spatially referenced data in an ambient of replies to problems. SIG groups, brings together and unites information. Through this available information becomes more […]

Heat losses investigation

1.1. Problem description When solar radiation come to an absorber layer, the spectral response of the ideal material should allow an absorbance on the bandwidth of incoming radiation and an emittance completely shifted in a different bandwidth. In this case all incoming radiation would be transferred into thermal radiation. Part of this radiation is lost […]

Testing Improved Solar Collector Performance Algorithms. With Solar System Design Software

Ricardo Aguiar*, Ricardo Coelho, Pedro Horta and Maria Joao Carvalho INETI, Department of Renewable Energies, Lisbon, Portugal* E-Mail: ricardo. aguiar@ineti. pt, Tel: +351 210 924 602 Introduction The influence of the incidence angle 0 on the performance of solar collectors has long been recognised and is accounted for in collector testing, as well as in […]

Morris method

This method is qualitative and only ranks parameters by its importance which means influence on the target function [2]. However, it also allows to determine whether the parameters have linear or non­linear effects on the target function or if they are involved in interactions with other parameters. The Morris method is based on the so-called […]