M. Santamouris

TL;DR: In this article, the authors present the state of the art on both the above technologies, when applied in the city scale, and present the definition of the limits, the boundaries and the conditions under which the considered technologies reach their better performance in a synthetic way.

TL;DR: In this article, the authors assess the impact of urban climate on the energy consumption of buildings and find that for the city of Athens, where the mean heat island intensity exceeds 10°C, the cooling load of urban buildings may be doubled, the peak electricity load for cooling purposes may be tripled especially for higher set point temperatures, while the minimum COP value of air conditioners may be decreased up to 25% because of the higher ambient temperatures.

TL;DR: In this paper, the authors present the actual state of the art on the development and the assessment of cool materials (i.e., materials with high solar reflectance and infrared emittance) for buildings and urban structures.

TL;DR: In this paper, the analysis of the thermal properties and energy performance of the green roof was carried out in two phases: during the first phase, extended surface and air temperature measurements were taken at the indoor and outdoor environment of the buildings where the green roofs had installed and during the second phase of the study, the thermal and energy saving were examined, through a mathematical approach.

TL;DR: In this article, the spectral properties and thermal performance of 10 prototype cool colored coatings, developed at the National and Kapodistrian University of Athens, using near-infrared reflective color pigments in comparison to color-matched, conventionally pigmented coatings are reported.