Check of a computer program for calculating long-term performance of solar flat-plate collectors

Abstract

In a previous paper a computer program was presented which is able to calculate the long-term performance of solar collectors. The method used implies a knowledge of meteorological data on a daily time basis. In the present paper a comparison is given between the results obtained with the above-mentioned method and those arising from methods involving hourly-defined meteorological data. The agreement between the two is found to be satisfactory.