تأثير تغيير شكل صفيحة الإمتصاص على توزيع درجات الحرارة لمجمع شمسي خازن

الملخص EN

This research is a numerical study to determine the impact of changing the shape of absorber plate on the temperature distribution of the solar storage collector used to heat and store water at the same time.

Absorber plate in a parabolic shape was used with different cases and study of the shape that gives the best distribution of temperature, by using a computer program based on (C.F.D) (computer fluid dynamic) to study the equations governing the flow of fluid freely within the storage collector as a result of solar irradiance falling upon.

these equations is the equation of continuity , equations momentum in tow directions and the energy equation, solved these equations using the method (vortex - stream function) for a full breakdown of the temperature and flow within the storage collector .

The results showed the possibility of improving thermal gradient for this type of storage collector through the use of absorber plate Followed by a parabolic equation and it gives maximum and minimum temperature (55 , 24 °C) respectively, offset by (41 , 19 °C) of the flat plate storage solar collector ,it inclined at an angle (◦ 45) on the horizon.