Experimental and theoretical performance of a demonstration solar chimney model—Part II: experimental and theoretical results and economic analysis

Abstract

This paper describes details of the experimental program conducted to assess the viability of the solar chimney concept. A demonstration model was designed and built and its theoretical and experimental performance was examined. Two experimental modifications were tried on the collector: (1) extending the collector base and (2) introducing an intermediate absorber. The former modification helped in enhancing the air temperature, while the latter contributed to increasing the air temperature as well as the mass flow rate inside the chimney. Both enhancements helped to increase the overall chimney power output. Theoretical and experimental performance results of this demonstration model are presented in this paper, while the mathematical model developed in Part I was used to predict the performance of much larger systems. Mathematical model results were validated by comparing them to published data on the solar chimney system built in Manzanares, Spain. Also, an economic assessment of the system costs are presented. © 1998 John Wiley & Sons, Ltd.

Chimney shape numerical study for solar chimney power generating systems

“…The chimneys' average diameter remains 80 m. Choosing five types of chimneys whose diameter variation spans from bottom to top are 100–60 m, 90–70 m, 80–80 m, 70–90 m and 60–100 m; the calculations are conducted with the solar radiation energy being 500 W/m 2 and the ambient temperature being 293 K, whose results are shown in Figure to Figure . The comparisons are made between chimneys of the same chimney surface area, as the costs of the chimneys are in proportion to their chimney surface area . It follows that the divergent chimney may cost more than the conical one, and it would be appropriate to choose the former one if its output power and efficiency could be improved.…”

Experimental evaluation of the performance and power output enhancement of a divergent solar chimney power plant by increasing the chimney height

“…(1998a) proposed a mathematical model and studied the effect of different geometric parameters on the temperature, velocity and power output of the plant. In a subsequent work, Pasumarthi and Sherif. (1998b) made further modifications to their plant and reported better performance.…”

Solar Chimney Power Plants for Sustainable Air Quality Management Integrating Photocatalysis and Particulate Filtration: A Comprehensive Review

“…In 1980, Prof Schlaich and his group made the prototype for a pilot plant for an SCPP in Manzanares, Spain (Figure 4), which was sponsored by the German Government in collaboration with the Spanish Utility Union ElectricaFenosa [66][67][68][69][70]. This Cao et al [71] proposed a chimney for the large-scale cleaning of air.…”

“…A wind wheel was situated at the top of the house to produce electrical energy [62,63]. In 1926, Prof. Dubos utilized the slant of a mountain for an SCPP in North Africa.The SCPP concept with a chimney was reported by Hanns Günther in 1931[64,65].In 1980, Prof Schlaich and his group made the prototype for a pilot plant for an SCPP in Manzanares, Spain (Figure4), which was sponsored by the German Government in collaboration with the Spanish Utility Union ElectricaFenosa[66][67][68][69][70]. This (dimensions: chimney diameter = 10.16 m, chimney height = 194.6 m, collector diameter = 244 m, and collector inlet = 1.85 m) plant was installed, and the generated power amounts to 50 kW.…”