the use of solar collectors in combination with heat pipes is rapidly growing in recent years.heat pipes, as heat transfer components, have undeniable advantages in comparison with other alternatives. the most important advantage is their high rate of heat transfer at minor temperature differences. although there have been numerous studies on the heat analysis or first thermodynamic analysis of...

One of the subjects in solar water heater design is considering distribution of hot water consumption during the day. For example, each of the household, commercial, office, school, and industrial consumptions have a particular distribution of hot water consumption named pattern in this article. In solar computation principles, the effect of longitude, latitude, and altitude on collector angle ...

This numerical and experimental work aims to improve the heat transfer inside a solar thermal collector. By incorporating rectangular baffles in middle of distributed air passing channel at different angles inclination (ß= 90°, ß= 180°, 180° 90°). That is called model H. These experiments were carried out Biskra region Algeria good natural conditions with an average radiation approximately cons...

In the perspective of the Net Zero Energy Buildings as specified in the EPBD 2010/31/EU, we propose the concept and design of a modular unglazed solar thermal (UST) façade component for facilitating the installation of active solar façades. The renovation of existing buildings offers an opportunity to improve the energy efficiency when using such a system and a novel design methodology tackled ...

In the present work we have studied case of a conventional solar air collector and try to see how is it possible improve it-s efficiency, by changing Reynolds number. Given complexity problem used FLUENT calculation code. We made mathematical model, then gave validation our result results Dimartini, fields speed, turbulence Nusselt profile factor friction as function Number. The show that varia...