Influence of environment and aging materials on the performance of solar chimney power plants

The simplicity of solar chimney power plant (SCPP) makes it very attractive for generation. This paper investigates the technical feasibility using a locally-produced plastic film (Low-Density Poly-Ethylene “LDPE”) as collector cover. idea is to combine low-cost material with simple solution. As LDPE subject deterioration, effect aging on initial properties used analyzed. Natural was privileged over accelerated one by exposing studied film, time duration 3 years, environmental constraints similar local conditions where SCPP collectors are installed. Various experimental tests were carried out show decrease mechanical resistance and confirm structural degradation. Results showed that after an exposure more than 50% failure stress recorded. spectroscopic analysis confirmed progressive degradation structure aged films. Pyranometric measurements transmittance proportionally decreases which has direct impact performance. A mathematical model developed validated simulate performance SCPP. An increase in dimension about 23% necessary maintain design-targeted production during exploitation period three years. study concluded this type can be maximum life cycle years under considered conditions.