D.A. Kouremenos

TL;DR: In this paper, correlations of the solar radiation for the Athens area are provided, based on hourly measurements over the period 1955-1980, and correlations are of two kinds: the first, which provides the average total radiation incident on a horizontal surface in terms of hour, day, and month of the typical year, is suitable for solar energy collection applications, and the second kind provides the maximum radiation and are suitable for use in the design of airconditioning installations or other applications requiring knowledge of maximum values.

TL;DR: In this paper, the same measurements are employed in conjunction with appropriate models for analysing total radiation in direct and diffuse components and for estimating the energy incident on tilted surfaces, which are presented in the form of algebraic correlations having as independent variable time (hour, day, month), surface azimuth and angle of inclination to the horizontal plane.

TL;DR: In this paper, the performance of NH3/H2O absorption units, operating in conjunction with high and intermediate temperature solar collectors in Athens, is predicted along the typical year, in the cases (a) of absorption refrigeration units working as refrigerators, and (b) of reversed absorption devices working as heat transformers.

TL;DR: In this paper, the authors considered the addition of solar heat at the mean temperature level and the operation of a reversed absorption NH 3 H 2 O cycle splitting the solar heat into two parts.